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description Publicationkeyboard_double_arrow_right Article , Other literature type 2021Embargo end date: 19 Jul 2021 United Kingdom, France EnglishPublisher:Institute of Electrical and Electronics Engineers (IEEE) Aubry-Kientz, M; Laybros, A; Weinstein, B; Ball, J; Jackson, T; Coomes, D; Vincent, G;doi: 10.17863/cam.72719
International audience; Automatic tree crown segmentation from remote sensing data is especially challenging in dense, diverse, and multilayered tropical forest canopies, and tracking mortality by this approach is even more difficult. Here, we examine the potential for combining airborne laser scanning (ALS) with multispectral and hyperspectral data to improve the accuracy of tree crown segmentation at a study site in French Guiana. We combined an ALS point cloud clustering method with a spectral deep learning model to achieve 83% accuracy at recognizing manually segmented reference crowns (with congruence >0.5). This method outperformed a two-step process that involved clustering the ALS point cloud and then using the logistic regression of hyperspectral distances to correct oversegmentation. We used this approach to map tree mortality from repeat surveys and show that the number of crowns identified in the first that intersected with height loss clusters was a good estimator of the number of dead trees in these areas. Our results demonstrate that multisensor data fusion improves the automatic segmentation of individual tree crowns and presents a promising avenue to study forest demography with repeated remote sensing acquisitions.
Apollo arrow_drop_down IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingArticle . 2021Data sources: DOAJ-Articlesadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.17863/cam.72719&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesgold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!visibility 10visibility views 10 download downloads 9 Powered bymore_vert Apollo arrow_drop_down IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingArticle . 2021Data sources: DOAJ-Articlesadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.17863/cam.72719&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object 2017 France, Germany English Funded by:UKRI | A robot-enabled, data-dri..., EC | ESROCOSUKRI| A robot-enabled, data-driven machine vision tool for nitrogen diagnosis of arable soils ,EC| ESROCOSMuñoz Arancón, M.; Montano, G.; Wirkus, M.; Hoeflinger, K.; Silveira, D.; Tsiogkas, N.; Hugues, Jérôme; Bruyninckx, H.; Dragomir, I.; Muhammad, A.;International audience; ESROCOS (http://www.h2020-esrocos.eu) is a European Project in the frame of the PERASPERA SRC, (http://www.h2020-peraspera.eu/), targeting the design of a Robot Control Operating Software (RCOS) for space robotics applications. The goal of the ESROCOS project is to provide an open-source framework to assist in the development of flight software for space robots, providing adequate features and performance with space-grade Reliability, Availability, Maintainability and Safety (RAMS) properties. This paper presents the ESROCOS project and summarizes the approach and the current status.
Open Archive Toulous... arrow_drop_down Open Archive Toulouse Archive Ouverte; Institut National Polytechnique de Toulouse (Theses)Conference object . 2017 . Peer-reviewedDLR publication serverOther literature type . Conference object . 2018Data sources: DLR publication serverDLR publication serverOther literature type . Conference object . 2017Data sources: DLR publication serverMémoires en Sciences de l'Information et de la CommunicationConference object . 2017Full-Text: https://hal.science/hal-01709676/documentAll Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______186::5ac681d8d79b82b4b6ec711941dc7f42&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Open Archive Toulous... arrow_drop_down Open Archive Toulouse Archive Ouverte; Institut National Polytechnique de Toulouse (Theses)Conference object . 2017 . Peer-reviewedDLR publication serverOther literature type . Conference object . 2018Data sources: DLR publication serverDLR publication serverOther literature type . Conference object . 2017Data sources: DLR publication serverMémoires en Sciences de l'Information et de la CommunicationConference object . 2017Full-Text: https://hal.science/hal-01709676/documentAll Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______186::5ac681d8d79b82b4b6ec711941dc7f42&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2016 France EnglishPublisher:Public Library of Science (PLoS) Funded by:EC | CLIMLANDEC| CLIMLANDAlford, Lucy; Androdias, Annabelle; Franco, Thomas; Pierre, Jean-Sébastien; Burel, Françoise; Baaren, Joan, Van;pmc: PMC5179110
pmid: 28006018
During parasitoid development, the immature parasitoid is confined to the host species. As\ud a result, any potential to modify the physiology or behaviour of the host could play an important\ud role in parasitoid fitness. The potential for host manipulation by the aphid parasitoid\ud Aphidius avenae to increase cold thermotolerance was investigated using the aphid host\ud species Metopolophium dirhodum and Sitobion avenae. Aphids were parasitized at L3/L4\ud instar stage (5 d old) and allowed to develop into pre-reproductive adults (10 d old) containing\ud a 5 d old parasitoid larva. A control group was created of non-parasitized pre-reproductive\ud adults (10 d old). The inherent physiological thermotolerance (LT50) and potential\ud behavioural thermoregulation (behaviour in a declining temperature regime) of parasitized\ud and non-parasitized aphids were investigated. Results revealed no effect of parasitism on\ud the physiological thermotolerance of S. avenae and M. dirhodum. Significant differences in\ud the behaviour of parasitized and non-parasitized aphids were observed, in addition to differences\ud between host species, and such behaviours are discussed in view of the potential for\ud host manipulation.
Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2016Full-Text: http://europepmc.org/articles/PMC5179110Data sources: PubMed Centraladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=PMC5179110&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold more_vert Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2016Full-Text: http://europepmc.org/articles/PMC5179110Data sources: PubMed Centraladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=PMC5179110&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object , Other literature type 2007 France, Italy EnglishPublisher:ISPRS Council, London Drap, Pierre; Durand, Anne; Nedir, Malika; Seinturier, Julien; Papini, Odile; Gabrielli, Roberto; Peloso, Daniela; Kadobayashi, Rieko; Gaillard, Gilles; Chapman, Paul; Viant, Warren; Vannini, Guido; Nucciotti, Michele;The paper presents an interdisciplinary project which is the first step towards a 3D Geographical Information System (GIS) dedicated to Cultural Heritage with a specific focus application on the Castle of Shawbak, also known as the ”Crac de Montral” in Jordan. The project continues to grow thanks to a synergy between a set of laboratories: The LSIS laboratory, France in charge of the pho- togrammetric survey phase connected with the knowledge based approach; ITABC, CNR lab in Roma, Italy in charge of the topometric survey, with DGPS and aerial photography with gas balloon, National Institute of Information and Communications Technology, Kyoto, Japan for the 3D view point seek connected to the database, the image processing aspect managed by Stratos documentation, SimVis from The Department of Computer Science, University of Hull, UK, for the virtual reality aspect and of course the Dipartimento di Studi storici e Geografici from the University of Florence, Italy, in charge of the archaeological part. Our project focuses on a building scale encompassing its atomic elements such as ashlars blocks, cement, stratigraphic units and archi- tectonic elements. At this scale we need a full 3D interface in order to manage accurate measurements, a huge quantity of observations and a mainly heterogeneous archaeological documentation. This project described in this paper is work in progress. After four photogrammetric campaigns in Jordan the first results are available on the project web site: http://www.shawbak.net
Hyper Article en Lig... arrow_drop_down HAL AMU; Mémoires en Sciences de l'Information et de la CommunicationConference object . 2007Hyper Article en Ligne - Sciences de l'Homme et de la Société; Hal-DiderotConference object . 2007All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______212::b949177a8012368e57cbe75e94e2d7e3&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Hyper Article en Lig... arrow_drop_down HAL AMU; Mémoires en Sciences de l'Information et de la CommunicationConference object . 2007Hyper Article en Ligne - Sciences de l'Homme et de la Société; Hal-DiderotConference object . 2007All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______212::b949177a8012368e57cbe75e94e2d7e3&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2021 United Kingdom, Netherlands, France, France EnglishPublisher:Elsevier BV Pottier, A.; Catry, Thibault; Trégarot, Ewan; Maréchal, Jean-Paul; Fayad, Veronica; David, G.; Cheikh, M. Sidi; Failler, Pierre;International audience; Coastal marine ecosystems ensure fundamental hydro-ecological functions and support high levels of biodiversity, besides being an important resource for local populations. These biocenosis have been increasingly threatened by human pressures (e.g. pollution, overfishing) along with climate change, which may have a dramatic impact on them. The National Park of Banc d’Arguin (PNBA) in Mauritania, one of the biggest parks in Western Africa, is a RAMSAR zone (classified by UNESCO since 1989) that plays a major role in (i) the maintenance of marine biocenosis, (ii) the protection of the ecosystems and (iii) the sequestration of carbon dioxide. Ecosystem databases and associated maps of the PNBA are out of date and limited to the southern and central parts of the park: updating is thus needed. In this paper, a supervised Support Vector Machine (SVM) was deployed using high-resolution images from Sentinel-2 combined with field data to map marine biocenosis of the PNBA. The results highlight that Sentinel-2 shows good classification accuracy for mapping marine biocenosis (>80% overall accuracy and a kappa index of 0.75), including seagrass beds. Also, the use of high-resolution sensors like SPOT-6 (1.5 m pixels) can overcome the limitations of Sentinel-2 (10 m pixels) when it comes to detecting small ecosystems distributed in patches. The use of freely-downloadable Sentinel-2 data, processed using geoinformatic freeware, make the methodology reproducible, affordable and easily transferable to local actors of biodiversity conservation for long term usage.
Portsmouth Research ... arrow_drop_down International Journal of Applied Earth Observation and GeoinformationArticle . 2021Data sources: University of Groningen Research PortalMémoires en Sciences de l'Information et de la Communication; HAL-IRDArticle . 2021License: CC BY NC NDadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=11370/de904d87-00b0-4ef0-9859-8d1c9fd6df9b&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Portsmouth Research ... arrow_drop_down International Journal of Applied Earth Observation and GeoinformationArticle . 2021Data sources: University of Groningen Research PortalMémoires en Sciences de l'Information et de la Communication; HAL-IRDArticle . 2021License: CC BY NC NDadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=11370/de904d87-00b0-4ef0-9859-8d1c9fd6df9b&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object , Research 2015 France EnglishOlioso, Albert; Bahir, Malik; Gallego-Elvira, Belen; Garrigues, Sébastien; Mira Sarrio, Maria; Chanzy, Andre; Weiss, Marie; Marloie, Olivier; Boulet, Gilles;Monitoring evapotranspiration over the Crau Aquifer from remote sensing and flux tower data.. Conference internationale MISTRALS 2015 Environment in the mediterranean statements and prospects for research and society
ProdInra arrow_drop_down Mémoires en Sciences de l'Information et de la Communication; HAL-IRDConference object . 2015Full-Text: https://hal.science/hal-01613632/documentHAL - UPEC / UPEM; HAL-Pasteur; HAL-Inserm; Hal-DiderotConference object . 2015All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od______2592::ab22301d28ebd9b90e9c9e0e078735df&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert ProdInra arrow_drop_down Mémoires en Sciences de l'Information et de la Communication; HAL-IRDConference object . 2015Full-Text: https://hal.science/hal-01613632/documentHAL - UPEC / UPEM; HAL-Pasteur; HAL-Inserm; Hal-DiderotConference object . 2015All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od______2592::ab22301d28ebd9b90e9c9e0e078735df&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2020 France EnglishPublisher:Public Library of Science (PLoS) Naino Jika, Abdel Kader; Le Ru, B.; Capdevielle-Dulac, C.; Chardonnet, F.; Silvain, J. F.; Kaiser, L.; Dupas, S.;pmc: PMC7081988
pmid: 32191750
The population genetic structure of crop pest populations gives information about their spatial ecology, which helps in designing management strategies. In this paper, we investigated the genetic structure of the Mediterranean Corn Borer (MCB), Sesamia nonagrioides Lefèbvre (Lepidoptera: Noctuidae), one of the most important maize pests in the Mediterranean countries, using microsatellite markers for the first time in this species. Insects were collected in twenty-five locations in southwest and southeast France from cultivated and wild host plants (Zea mays, Sorghum halepense and Typha domingensis). Contrary to what has been reported so far in France, we found that MCB populations could be locally abundant on wild poales plants. Analysis was carried out at 11 polymorphic microsatellite markers. Molecular variance was significantly determined by geography, then by host plant, with 17% and 4%, respectively, when considered as a major effect, and with 14% and 1%, respectively, when considered as a marginal effect in permutational analysis. Multidimensional scaling (MDS) and GENELAND Bayesian clustering suggested that populations infecting wild plants (T. domingensis and S. halepense) were more structured locally than those affecting cultivated maize. In S. halepense, significant Isolation By Distance (IBD) indicated that this factor could explain genetic differentiation of the moth populations. In T. domingensis, local population differentiation was strong but did not depend on distance. The implication of this absence of population structure in maize and the heterogeneity of population genetics patterns in wild plants are discussed in the context of the population dynamics hypothesis and population management strategies.
Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2020Full-Text: http://europepmc.org/articles/PMC7081988Data sources: PubMed Centraladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=PMC7081988&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 2 citations 2 popularity Average influence Average impulse Average Powered by BIP!more_vert Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2020Full-Text: http://europepmc.org/articles/PMC7081988Data sources: PubMed Centraladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=PMC7081988&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2018 Germany, France, Iceland EnglishPublisher:IEEE Gotz, Markus; Cavallaro, Gabriele; Géraud, Thierry; Book, Matthias; Riedel, Morris;handle: 2128/19786
Component trees are region-based representations that encode the inclusion relationship of the threshold sets of an image. These representations are one of the most promising strategies for the analysis and the interpretation of spatial information of complex scenes as they allow the simple and efficient implementation of connected filters. This work proposes a new efficient hybrid algorithm for the parallel computation of two particular component trees—the max- and min-tree—in shared and distributed memory environments. For the node-local computation a modified version of the flooding-based algorithm of Salembier is employed. A novel tuple-based merging scheme allows to merge the acquired partial images into a globally correct view. Using the proposed approach a speed-up of up to 44.88 using 128 processing cores on eight-bit gray-scale images could be achieved. This is more than a five-fold increase over the state-of-the-art shared-memory algorithm, while also requiring only one-thirty-second of the memory. The authors would like to thank Igancio Toledo and Martin Kornmesser for making the ESO/VVV Survey/D. Minniti image with the id eso1242a publicly available. Publisher's version (útgefin grein) Peer Reviewed
Juelich Shared Elect... arrow_drop_down Mémoires en Sciences de l'Information et de la CommunicationArticle . 2018Full-Text: https://hal.science/hal-02181876/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=2128/19786&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Juelich Shared Elect... arrow_drop_down Mémoires en Sciences de l'Information et de la CommunicationArticle . 2018Full-Text: https://hal.science/hal-02181876/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=2128/19786&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis , Thesis 2018 United Kingdom EnglishPublisher:HAL CCSD Authors: Chirol, Clementine;Chirol, Clementine;The restoration of coastal wetlands in the UK and worldwide often involves the excavation of artificial creek networks to encourage hydrological and ecological processes; however the evolution of these artificial creeks post-implementation is insufficiently monitored, and their design still lacks scientific guidance. This thesis analyses the morphological evolution of creeks in restored coastal wetlands in the UK to help inform future design strategies. A new semi-automated creek parametrisation method was developed for lidar datasets, which is faster and less subjective than manual mapping. Morphological equilibrium was defined for natural saltmarshes; power-law relationships for creek dimensions and distribution at equilibrium were derived from the analysis of 13 mature natural saltmarshes to provide a range of potential end targets for MR creek design. A relationship was found between the overmarsh path length (mean distance to a creek anywhere in the marsh) and the mean site elevation within the tidal frame. This analysis also found that creek morphological equilibrium should be described as a range of potential states rather than as one quantifiable target. The evolution of 10 MR creeks in their first 2-20 years post-breach was then studied. MR creeks evolved near-linearly towards a larger, more sinuous and better distributed system. These evolution rates towards the proposed equilibrium targets were then related to the initial conditions of the sites: low-lying sites with high accretion rates and large openings had fasterevolving creeks, while high, constrained sites displayed limited creek growth and required more extensive initial creek excavation. The 10 MR schemes and two accidentally realigned sites considered behave as though they should stabilise within 100 years into an alternative equilibrium state to that of natural systems, with a lower density distribution of creeks, mainly concentrated around the breach areas, while the further reaches of the site have fewer channels. Furthermore, the channels have a lower sinuosity due to inherited drainage ditches that remain visible even after 100 years, and a flatter substrate. MR creek expansion may be hindered by the overcompacted soil and lack of small-scale topography inherited from the previous agricultural land use, which prevents creek incision and preferential deposition around topographic flow paths. Based on these findings, future studies should link the soil geotechnical properties, creek development and biodiversity of MR schemes to better understand creek-forming processes and improve the monitoring, management and design of MR sites.; La restauration des marais littoraux au Royaume-Uni et dans le monde implique souvent l'excavation de réseaux de chenaux artificiels pour encourager les processus hydrologiques et écologiques. L'évolution de ces chenaux artificiels après leur excavation est insuffisamment suivie, et leur conception manque encore de fondations scientifiques. Cette thèse analyse l'évolution morphologique des chenaux dans les marais littoraux restaurés au Royaume-Uni afin d’informer les futures stratégies de restauration. Une nouvelle méthode semi-automatique de paramétrisation des chenaux a été développée utilisant des données lidar, plus rapide et moins subjective que l’extraction manuelle. L'équilibre morphologique a été défini pour les marais littoraux naturels ; des relations de type loi de puissance ont été dérivées pour les dimensions et la distribution des chenaux à l'équilibre à partir de l'analyse de 13 marais littoraux matures afin de fournir une gamme de cibles finales potentielles pour les chenaux des sites restaurés. Une relation a été trouvée entre la longueur non-chenalisée (distance moyenne jusqu'à un chenal n'importe où dans le marais littoral) et l'élévation moyenne du site par rapport à l’amplitude de marée. Cette analyse a également montré que l'équilibre morphologique d’un réseau de chenaux devrait être décrit comme une gamme d'états potentiels plutôt que comme un état unique. L'évolution de 10 réseaux de chenaux de marais littoraux restaurés a ensuite été étudiée pour les 2 à 20 premières années suivant l’implémentation. Les chenaux ont évolué de façon quasi-linéaire vers un système plus large, plus sinueux et mieux réparti. Ces taux d'évolution vers les objectifs d'équilibre proposés ont ensuite été confrontés avec les conditions initiales : les sites de faible élévation avec des taux d'accrétion élevés et de grandes ouvertures dans le polders voyaient leurs chenaux évoluer plus rapidement, tandis que les sites élevés et ayant une faible connection à l’estuaire présentaient une croissance limitée des chenaux, et nécessitaient une excavation initiale plus importante. Les sites d’étude (10 marais littoraux restaurés et les deux sites reconnectés accidentellement à l’estuaire) se comportent comme s'ils devaient se stabiliser dans les 100 ans dans un état d'équilibre différent de celui des systèmes naturels, avec une distribution moins dense des chenaux, principalement concentrée autour des zones de brèches, tandis que les parties plus éloignées du site ont une plus faible densité de chenaux. En outre, les chenaux ont une sinuosité plus faible en raison des anciens fossés de drainage qui demeurent visibles même après 100 ans, et un substrat plus plat. Le développement des réseaux de chenaux dans les marais littoraux restaurés peut être entravé par une surcompaction du sol et un manque de topographie, conditions héritées de l'ancien usage agricole qui empêchent l'incision de nouveaux chenaux et le dépôt préférentiel le long des voies d'écoulement topographiques. Sur la base de ces résultats, de futures études devraient établir un lien entre les propriétés géotechniques du sol, le développement des chenaux et la biodiversité des marais littoraux restaurés pour mieux comprendre les processus de formation des chenaux et améliorer le suivi, la gestion et la conception de ces projets.
e-Prints Soton arrow_drop_down Mémoires en Sciences de l'Information et de la CommunicationDoctoral thesis . 2018Full-Text: https://hal.inrae.fr/tel-04290352/documentAll Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______212::51bb944b6d3a56381cb9ab2258f833ac&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert e-Prints Soton arrow_drop_down Mémoires en Sciences de l'Information et de la CommunicationDoctoral thesis . 2018Full-Text: https://hal.inrae.fr/tel-04290352/documentAll Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______212::51bb944b6d3a56381cb9ab2258f833ac&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2023 United Kingdom EnglishPublisher:International Viticulture and Enology Society Castex, V.; De Cortazar-Atauri, I. G.; Beniston, M.; Moreau, J.; Semenov, M. A.; Stoffel, M.; Calanca, P.;International audience; The European grapevine moth (Lobesia botrana) is one of the major pests of the grapevine (Vitis vinifera) in Europe. The phenology of both the insect pest and the plant has already changed over the last decades in response to rising temperatures, with a tendency towards an earlier development. The impact of a warming climate, among other factors, could alter matches in phenology between two trophic levels, being either beneficial or detrimental to V. vinifera. As a consequence, when considering a European latitudinal transect, the changes toward synchrony or a mismatch are not fully understood. In this study, we applied the results of sequential models to simulate the phenological development of V. vinifera from dormancy to physiological maturity of Chardonnay or a similar grape variety. Likewise, we simulated the phenology of L. botrana with a process-based voltinism model. Both models were calibrated and validated in previous studies. The present study aims at simulating the future evolution of both trophic levels under changing climatic conditions at four representative European locations by using quasi-transient climate scenarios up to the year 2100 that consider the RCP4.5 and RCP8.5 greenhouse-gas forcing pathways. Although some physiological adaptations could alter these results, simulations of synchrony under climate change are crucial for the adaptation of grape cultivation and varieties. This modelling work seeks to improve our understanding of the probable shifts in the timing and spatial distribution of the plant-insect interactions in a warmer climate and how this may impact their synchrony. A risk index of damage has been implemented for the different sites and greenhouse gas forcing trajectories. Results suggest an increasing damage risk for V. vinifera close to the timing of harvests in northern Europe. They also point to increasing mortality rates of the fourth generation of L. botrana in southern Europe, where temperatures will increasingly reach the upper thermal limit for insect development.
Rothamsted Repositor... arrow_drop_down All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od______4225::ab8ce0d820baf91b89d0304c9c8fa123&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Rothamsted Repositor... arrow_drop_down All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od______4225::ab8ce0d820baf91b89d0304c9c8fa123&type=result"></script>'); --> </script>
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description Publicationkeyboard_double_arrow_right Article , Other literature type 2021Embargo end date: 19 Jul 2021 United Kingdom, France EnglishPublisher:Institute of Electrical and Electronics Engineers (IEEE) Aubry-Kientz, M; Laybros, A; Weinstein, B; Ball, J; Jackson, T; Coomes, D; Vincent, G;doi: 10.17863/cam.72719
International audience; Automatic tree crown segmentation from remote sensing data is especially challenging in dense, diverse, and multilayered tropical forest canopies, and tracking mortality by this approach is even more difficult. Here, we examine the potential for combining airborne laser scanning (ALS) with multispectral and hyperspectral data to improve the accuracy of tree crown segmentation at a study site in French Guiana. We combined an ALS point cloud clustering method with a spectral deep learning model to achieve 83% accuracy at recognizing manually segmented reference crowns (with congruence >0.5). This method outperformed a two-step process that involved clustering the ALS point cloud and then using the logistic regression of hyperspectral distances to correct oversegmentation. We used this approach to map tree mortality from repeat surveys and show that the number of crowns identified in the first that intersected with height loss clusters was a good estimator of the number of dead trees in these areas. Our results demonstrate that multisensor data fusion improves the automatic segmentation of individual tree crowns and presents a promising avenue to study forest demography with repeated remote sensing acquisitions.
Apollo arrow_drop_down IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingArticle . 2021Data sources: DOAJ-Articlesadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.17863/cam.72719&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesgold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!visibility 10visibility views 10 download downloads 9 Powered bymore_vert Apollo arrow_drop_down IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingArticle . 2021Data sources: DOAJ-Articlesadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.17863/cam.72719&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object 2017 France, Germany English Funded by:UKRI | A robot-enabled, data-dri..., EC | ESROCOSUKRI| A robot-enabled, data-driven machine vision tool for nitrogen diagnosis of arable soils ,EC| ESROCOSMuñoz Arancón, M.; Montano, G.; Wirkus, M.; Hoeflinger, K.; Silveira, D.; Tsiogkas, N.; Hugues, Jérôme; Bruyninckx, H.; Dragomir, I.; Muhammad, A.;International audience; ESROCOS (http://www.h2020-esrocos.eu) is a European Project in the frame of the PERASPERA SRC, (http://www.h2020-peraspera.eu/), targeting the design of a Robot Control Operating Software (RCOS) for space robotics applications. The goal of the ESROCOS project is to provide an open-source framework to assist in the development of flight software for space robots, providing adequate features and performance with space-grade Reliability, Availability, Maintainability and Safety (RAMS) properties. This paper presents the ESROCOS project and summarizes the approach and the current status.
Open Archive Toulous... arrow_drop_down Open Archive Toulouse Archive Ouverte; Institut National Polytechnique de Toulouse (Theses)Conference object . 2017 . Peer-reviewedDLR publication serverOther literature type . Conference object . 2018Data sources: DLR publication serverDLR publication serverOther literature type . Conference object . 2017Data sources: DLR publication serverMémoires en Sciences de l'Information et de la CommunicationConference object . 2017Full-Text: https://hal.science/hal-01709676/documentAll Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______186::5ac681d8d79b82b4b6ec711941dc7f42&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Open Archive Toulous... arrow_drop_down Open Archive Toulouse Archive Ouverte; Institut National Polytechnique de Toulouse (Theses)Conference object . 2017 . Peer-reviewedDLR publication serverOther literature type . Conference object . 2018Data sources: DLR publication serverDLR publication serverOther literature type . Conference object . 2017Data sources: DLR publication serverMémoires en Sciences de l'Information et de la CommunicationConference object . 2017Full-Text: https://hal.science/hal-01709676/documentAll Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______186::5ac681d8d79b82b4b6ec711941dc7f42&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2016 France EnglishPublisher:Public Library of Science (PLoS) Funded by:EC | CLIMLANDEC| CLIMLANDAlford, Lucy; Androdias, Annabelle; Franco, Thomas; Pierre, Jean-Sébastien; Burel, Françoise; Baaren, Joan, Van;pmc: PMC5179110
pmid: 28006018
During parasitoid development, the immature parasitoid is confined to the host species. As\ud a result, any potential to modify the physiology or behaviour of the host could play an important\ud role in parasitoid fitness. The potential for host manipulation by the aphid parasitoid\ud Aphidius avenae to increase cold thermotolerance was investigated using the aphid host\ud species Metopolophium dirhodum and Sitobion avenae. Aphids were parasitized at L3/L4\ud instar stage (5 d old) and allowed to develop into pre-reproductive adults (10 d old) containing\ud a 5 d old parasitoid larva. A control group was created of non-parasitized pre-reproductive\ud adults (10 d old). The inherent physiological thermotolerance (LT50) and potential\ud behavioural thermoregulation (behaviour in a declining temperature regime) of parasitized\ud and non-parasitized aphids were investigated. Results revealed no effect of parasitism on\ud the physiological thermotolerance of S. avenae and M. dirhodum. Significant differences in\ud the behaviour of parasitized and non-parasitized aphids were observed, in addition to differences\ud between host species, and such behaviours are discussed in view of the potential for\ud host manipulation.
Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2016Full-Text: http://europepmc.org/articles/PMC5179110Data sources: PubMed Centraladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=PMC5179110&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold more_vert Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2016Full-Text: http://europepmc.org/articles/PMC5179110Data sources: PubMed Centraladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=PMC5179110&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object , Other literature type 2007 France, Italy EnglishPublisher:ISPRS Council, London Drap, Pierre; Durand, Anne; Nedir, Malika; Seinturier, Julien; Papini, Odile; Gabrielli, Roberto; Peloso, Daniela; Kadobayashi, Rieko; Gaillard, Gilles; Chapman, Paul; Viant, Warren; Vannini, Guido; Nucciotti, Michele;The paper presents an interdisciplinary project which is the first step towards a 3D Geographical Information System (GIS) dedicated to Cultural Heritage with a specific focus application on the Castle of Shawbak, also known as the ”Crac de Montral” in Jordan. The project continues to grow thanks to a synergy between a set of laboratories: The LSIS laboratory, France in charge of the pho- togrammetric survey phase connected with the knowledge based approach; ITABC, CNR lab in Roma, Italy in charge of the topometric survey, with DGPS and aerial photography with gas balloon, National Institute of Information and Communications Technology, Kyoto, Japan for the 3D view point seek connected to the database, the image processing aspect managed by Stratos documentation, SimVis from The Department of Computer Science, University of Hull, UK, for the virtual reality aspect and of course the Dipartimento di Studi storici e Geografici from the University of Florence, Italy, in charge of the archaeological part. Our project focuses on a building scale encompassing its atomic elements such as ashlars blocks, cement, stratigraphic units and archi- tectonic elements. At this scale we need a full 3D interface in order to manage accurate measurements, a huge quantity of observations and a mainly heterogeneous archaeological documentation. This project described in this paper is work in progress. After four photogrammetric campaigns in Jordan the first results are available on the project web site: http://www.shawbak.net
Hyper Article en Lig... arrow_drop_down HAL AMU; Mémoires en Sciences de l'Information et de la CommunicationConference object . 2007Hyper Article en Ligne - Sciences de l'Homme et de la Société; Hal-DiderotConference object . 2007All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______212::b949177a8012368e57cbe75e94e2d7e3&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Hyper Article en Lig... arrow_drop_down HAL AMU; Mémoires en Sciences de l'Information et de la CommunicationConference object . 2007Hyper Article en Ligne - Sciences de l'Homme et de la Société; Hal-DiderotConference object . 2007All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______212::b949177a8012368e57cbe75e94e2d7e3&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2021 United Kingdom, Netherlands, France, France EnglishPublisher:Elsevier BV Pottier, A.; Catry, Thibault; Trégarot, Ewan; Maréchal, Jean-Paul; Fayad, Veronica; David, G.; Cheikh, M. Sidi; Failler, Pierre;International audience; Coastal marine ecosystems ensure fundamental hydro-ecological functions and support high levels of biodiversity, besides being an important resource for local populations. These biocenosis have been increasingly threatened by human pressures (e.g. pollution, overfishing) along with climate change, which may have a dramatic impact on them. The National Park of Banc d’Arguin (PNBA) in Mauritania, one of the biggest parks in Western Africa, is a RAMSAR zone (classified by UNESCO since 1989) that plays a major role in (i) the maintenance of marine biocenosis, (ii) the protection of the ecosystems and (iii) the sequestration of carbon dioxide. Ecosystem databases and associated maps of the PNBA are out of date and limited to the southern and central parts of the park: updating is thus needed. In this paper, a supervised Support Vector Machine (SVM) was deployed using high-resolution images from Sentinel-2 combined with field data to map marine biocenosis of the PNBA. The results highlight that Sentinel-2 shows good classification accuracy for mapping marine biocenosis (>80% overall accuracy and a kappa index of 0.75), including seagrass beds. Also, the use of high-resolution sensors like SPOT-6 (1.5 m pixels) can overcome the limitations of Sentinel-2 (10 m pixels) when it comes to detecting small ecosystems distributed in patches. The use of freely-downloadable Sentinel-2 data, processed using geoinformatic freeware, make the methodology reproducible, affordable and easily transferable to local actors of biodiversity conservation for long term usage.
Portsmouth Research ... arrow_drop_down International Journal of Applied Earth Observation and GeoinformationArticle . 2021Data sources: University of Groningen Research PortalMémoires en Sciences de l'Information et de la Communication; HAL-IRDArticle . 2021License: CC BY NC NDadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=11370/de904d87-00b0-4ef0-9859-8d1c9fd6df9b&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Portsmouth Research ... arrow_drop_down International Journal of Applied Earth Observation and GeoinformationArticle . 2021Data sources: University of Groningen Research PortalMémoires en Sciences de l'Information et de la Communication; HAL-IRDArticle . 2021License: CC BY NC NDadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=11370/de904d87-00b0-4ef0-9859-8d1c9fd6df9b&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object , Research 2015 France EnglishOlioso, Albert; Bahir, Malik; Gallego-Elvira, Belen; Garrigues, Sébastien; Mira Sarrio, Maria; Chanzy, Andre; Weiss, Marie; Marloie, Olivier; Boulet, Gilles;Monitoring evapotranspiration over the Crau Aquifer from remote sensing and flux tower data.. Conference internationale MISTRALS 2015 Environment in the mediterranean statements and prospects for research and society
ProdInra arrow_drop_down Mémoires en Sciences de l'Information et de la Communication; HAL-IRDConference object . 2015Full-Text: https://hal.science/hal-01613632/documentHAL - UPEC / UPEM; HAL-Pasteur; HAL-Inserm; Hal-DiderotConference object . 2015All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od______2592::ab22301d28ebd9b90e9c9e0e078735df&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert ProdInra arrow_drop_down Mémoires en Sciences de l'Information et de la Communication; HAL-IRDConference object . 2015Full-Text: https://hal.science/hal-01613632/documentHAL - UPEC / UPEM; HAL-Pasteur; HAL-Inserm; Hal-DiderotConference object . 2015All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od______2592::ab22301d28ebd9b90e9c9e0e078735df&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2020 France EnglishPublisher:Public Library of Science (PLoS) Naino Jika, Abdel Kader; Le Ru, B.; Capdevielle-Dulac, C.; Chardonnet, F.; Silvain, J. F.; Kaiser, L.; Dupas, S.;pmc: PMC7081988
pmid: 32191750
The population genetic structure of crop pest populations gives information about their spatial ecology, which helps in designing management strategies. In this paper, we investigated the genetic structure of the Mediterranean Corn Borer (MCB), Sesamia nonagrioides Lefèbvre (Lepidoptera: Noctuidae), one of the most important maize pests in the Mediterranean countries, using microsatellite markers for the first time in this species. Insects were collected in twenty-five locations in southwest and southeast France from cultivated and wild host plants (Zea mays, Sorghum halepense and Typha domingensis). Contrary to what has been reported so far in France, we found that MCB populations could be locally abundant on wild poales plants. Analysis was carried out at 11 polymorphic microsatellite markers. Molecular variance was significantly determined by geography, then by host plant, with 17% and 4%, respectively, when considered as a major effect, and with 14% and 1%, respectively, when considered as a marginal effect in permutational analysis. Multidimensional scaling (MDS) and GENELAND Bayesian clustering suggested that populations infecting wild plants (T. domingensis and S. halepense) were more structured locally than those affecting cultivated maize. In S. halepense, significant Isolation By Distance (IBD) indicated that this factor could explain genetic differentiation of the moth populations. In T. domingensis, local population differentiation was strong but did not depend on distance. The implication of this absence of population structure in maize and the heterogeneity of population genetics patterns in wild plants are discussed in the context of the population dynamics hypothesis and population management strategies.
Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2020Full-Text: http://europepmc.org/articles/PMC7081988Data sources: PubMed Centraladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=PMC7081988&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 2 citations 2 popularity Average influence Average impulse Average Powered by BIP!more_vert Europe PubMed Centra... arrow_drop_down Europe PubMed CentralArticle . 2020Full-Text: http://europepmc.org/articles/PMC7081988Data sources: PubMed Centraladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=PMC7081988&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2018 Germany, France, Iceland EnglishPublisher:IEEE Gotz, Markus; Cavallaro, Gabriele; Géraud, Thierry; Book, Matthias; Riedel, Morris;handle: 2128/19786
Component trees are region-based representations that encode the inclusion relationship of the threshold sets of an image. These representations are one of the most promising strategies for the analysis and the interpretation of spatial information of complex scenes as they allow the simple and efficient implementation of connected filters. This work proposes a new efficient hybrid algorithm for the parallel computation of two particular component trees—the max- and min-tree—in shared and distributed memory environments. For the node-local computation a modified version of the flooding-based algorithm of Salembier is employed. A novel tuple-based merging scheme allows to merge the acquired partial images into a globally correct view. Using the proposed approach a speed-up of up to 44.88 using 128 processing cores on eight-bit gray-scale images could be achieved. This is more than a five-fold increase over the state-of-the-art shared-memory algorithm, while also requiring only one-thirty-second of the memory. The authors would like to thank Igancio Toledo and Martin Kornmesser for making the ESO/VVV Survey/D. Minniti image with the id eso1242a publicly available. Publisher's version (útgefin grein) Peer Reviewed
Juelich Shared Elect... arrow_drop_down Mémoires en Sciences de l'Information et de la CommunicationArticle . 2018Full-Text: https://hal.science/hal-02181876/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=2128/19786&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Juelich Shared Elect... arrow_drop_down Mémoires en Sciences de l'Information et de la CommunicationArticle . 2018Full-Text: https://hal.science/hal-02181876/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis , Thesis 2018 United Kingdom EnglishPublisher:HAL CCSD Authors: Chirol, Clementine;Chirol, Clementine;The restoration of coastal wetlands in the UK and worldwide often involves the excavation of artificial creek networks to encourage hydrological and ecological processes; however the evolution of these artificial creeks post-implementation is insufficiently monitored, and their design still lacks scientific guidance. This thesis analyses the morphological evolution of creeks in restored coastal wetlands in the UK to help inform future design strategies. A new semi-automated creek parametrisation method was developed for lidar datasets, which is faster and less subjective than manual mapping. Morphological equilibrium was defined for natural saltmarshes; power-law relationships for creek dimensions and distribution at equilibrium were derived from the analysis of 13 mature natural saltmarshes to provide a range of potential end targets for MR creek design. A relationship was found between the overmarsh path length (mean distance to a creek anywhere in the marsh) and the mean site elevation within the tidal frame. This analysis also found that creek morphological equilibrium should be described as a range of potential states rather than as one quantifiable target. The evolution of 10 MR creeks in their first 2-20 years post-breach was then studied. MR creeks evolved near-linearly towards a larger, more sinuous and better distributed system. These evolution rates towards the proposed equilibrium targets were then related to the initial conditions of the sites: low-lying sites with high accretion rates and large openings had fasterevolving creeks, while high, constrained sites displayed limited creek growth and required more extensive initial creek excavation. The 10 MR schemes and two accidentally realigned sites considered behave as though they should stabilise within 100 years into an alternative equilibrium state to that of natural systems, with a lower density distribution of creeks, mainly concentrated around the breach areas, while the further reaches of the site have fewer channels. Furthermore, the channels have a lower sinuosity due to inherited drainage ditches that remain visible even after 100 years, and a flatter substrate. MR creek expansion may be hindered by the overcompacted soil and lack of small-scale topography inherited from the previous agricultural land use, which prevents creek incision and preferential deposition around topographic flow paths. Based on these findings, future studies should link the soil geotechnical properties, creek development and biodiversity of MR schemes to better understand creek-forming processes and improve the monitoring, management and design of MR sites.; La restauration des marais littoraux au Royaume-Uni et dans le monde implique souvent l'excavation de réseaux de chenaux artificiels pour encourager les processus hydrologiques et écologiques. L'évolution de ces chenaux artificiels après leur excavation est insuffisamment suivie, et leur conception manque encore de fondations scientifiques. Cette thèse analyse l'évolution morphologique des chenaux dans les marais littoraux restaurés au Royaume-Uni afin d’informer les futures stratégies de restauration. Une nouvelle méthode semi-automatique de paramétrisation des chenaux a été développée utilisant des données lidar, plus rapide et moins subjective que l’extraction manuelle. L'équilibre morphologique a été défini pour les marais littoraux naturels ; des relations de type loi de puissance ont été dérivées pour les dimensions et la distribution des chenaux à l'équilibre à partir de l'analyse de 13 marais littoraux matures afin de fournir une gamme de cibles finales potentielles pour les chenaux des sites restaurés. Une relation a été trouvée entre la longueur non-chenalisée (distance moyenne jusqu'à un chenal n'importe où dans le marais littoral) et l'élévation moyenne du site par rapport à l’amplitude de marée. Cette analyse a également montré que l'équilibre morphologique d’un réseau de chenaux devrait être décrit comme une gamme d'états potentiels plutôt que comme un état unique. L'évolution de 10 réseaux de chenaux de marais littoraux restaurés a ensuite été étudiée pour les 2 à 20 premières années suivant l’implémentation. Les chenaux ont évolué de façon quasi-linéaire vers un système plus large, plus sinueux et mieux réparti. Ces taux d'évolution vers les objectifs d'équilibre proposés ont ensuite été confrontés avec les conditions initiales : les sites de faible élévation avec des taux d'accrétion élevés et de grandes ouvertures dans le polders voyaient leurs chenaux évoluer plus rapidement, tandis que les sites élevés et ayant une faible connection à l’estuaire présentaient une croissance limitée des chenaux, et nécessitaient une excavation initiale plus importante. Les sites d’étude (10 marais littoraux restaurés et les deux sites reconnectés accidentellement à l’estuaire) se comportent comme s'ils devaient se stabiliser dans les 100 ans dans un état d'équilibre différent de celui des systèmes naturels, avec une distribution moins dense des chenaux, principalement concentrée autour des zones de brèches, tandis que les parties plus éloignées du site ont une plus faible densité de chenaux. En outre, les chenaux ont une sinuosité plus faible en raison des anciens fossés de drainage qui demeurent visibles même après 100 ans, et un substrat plus plat. Le développement des réseaux de chenaux dans les marais littoraux restaurés peut être entravé par une surcompaction du sol et un manque de topographie, conditions héritées de l'ancien usage agricole qui empêchent l'incision de nouveaux chenaux et le dépôt préférentiel le long des voies d'écoulement topographiques. Sur la base de ces résultats, de futures études devraient établir un lien entre les propriétés géotechniques du sol, le développement des chenaux et la biodiversité des marais littoraux restaurés pour mieux comprendre les processus de formation des chenaux et améliorer le suivi, la gestion et la conception de ces projets.
e-Prints Soton arrow_drop_down Mémoires en Sciences de l'Information et de la CommunicationDoctoral thesis . 2018Full-Text: https://hal.inrae.fr/tel-04290352/documentAll Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______212::51bb944b6d3a56381cb9ab2258f833ac&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert e-Prints Soton arrow_drop_down Mémoires en Sciences de l'Information et de la CommunicationDoctoral thesis . 2018Full-Text: https://hal.inrae.fr/tel-04290352/documentAll Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______212::51bb944b6d3a56381cb9ab2258f833ac&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2023 United Kingdom EnglishPublisher:International Viticulture and Enology Society Castex, V.; De Cortazar-Atauri, I. G.; Beniston, M.; Moreau, J.; Semenov, M. A.; Stoffel, M.; Calanca, P.;International audience; The European grapevine moth (Lobesia botrana) is one of the major pests of the grapevine (Vitis vinifera) in Europe. The phenology of both the insect pest and the plant has already changed over the last decades in response to rising temperatures, with a tendency towards an earlier development. The impact of a warming climate, among other factors, could alter matches in phenology between two trophic levels, being either beneficial or detrimental to V. vinifera. As a consequence, when considering a European latitudinal transect, the changes toward synchrony or a mismatch are not fully understood. In this study, we applied the results of sequential models to simulate the phenological development of V. vinifera from dormancy to physiological maturity of Chardonnay or a similar grape variety. Likewise, we simulated the phenology of L. botrana with a process-based voltinism model. Both models were calibrated and validated in previous studies. The present study aims at simulating the future evolution of both trophic levels under changing climatic conditions at four representative European locations by using quasi-transient climate scenarios up to the year 2100 that consider the RCP4.5 and RCP8.5 greenhouse-gas forcing pathways. Although some physiological adaptations could alter these results, simulations of synchrony under climate change are crucial for the adaptation of grape cultivation and varieties. This modelling work seeks to improve our understanding of the probable shifts in the timing and spatial distribution of the plant-insect interactions in a warmer climate and how this may impact their synchrony. A risk index of damage has been implemented for the different sites and greenhouse gas forcing trajectories. Results suggest an increasing damage risk for V. vinifera close to the timing of harvests in northern Europe. They also point to increasing mortality rates of the fourth generation of L. botrana in southern Europe, where temperatures will increasingly reach the upper thermal limit for insect development.
Rothamsted Repositor... arrow_drop_down All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od______4225::ab8ce0d820baf91b89d0304c9c8fa123&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Rothamsted Repositor... arrow_drop_down All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od______4225::ab8ce0d820baf91b89d0304c9c8fa123&type=result"></script>'); --> </script>
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