@article {8885, title = {Analysing economic costs of invasive alien species with the invacost R package}, journal = {Methods in Ecology and Evolution}, volume = {13}, year = {2022}, month = {Jan-09-2022}, pages = {1930 - 1937}, issn = {2041-210X}, doi = {10.1111/mee3.v13.910.1111/2041-210X.13929}, url = {https://doi.org/10.1111/2041-210X.13929}, author = {Leroy, Boris and Kramer, Andrew M. and Vaissi{\`e}re, Anne-Charlotte and Kourantidou, Melina and Courchamp, Franck and Diagne, Christophe} } @article {8882, title = {Geographic and taxonomic trends of rising biological invasion costs}, journal = {Science of The Total Environment}, volume = {817}, year = {2022}, month = {Jan-04-2022}, pages = {152948}, issn = {00489697}, doi = {10.1016/j.scitotenv.2022.152948}, url = {https://linkinghub.elsevier.com/retrieve/pii/S0048969722000377}, author = {Haubrock, Phillip J. and Cuthbert, Ross N. and Hudgins, Emma J. and Crystal-Ornelas, Robert and Kourantidou, Melina and Moodley, Desika and Liu, Chunlong and Turbelin, Anna J. and Leroy, Boris and Courchamp, Franck} } @article {8146, title = {Knowledge gaps in economic costs of invasive alien fish worldwide}, journal = {Science of The Total Environment}, volume = {803}, year = {2022}, month = {Jan-01-2022}, pages = {149875}, issn = {00489697}, doi = {10.1016/j.scitotenv.2021.149875}, url = {https://linkinghub.elsevier.com/retrieve/pii/S0048969721049500}, author = {Haubrock, Phillip J. and Bernery, Camille and Cuthbert, Ross N. and Liu, Chunlong and Kourantidou, Melina and Leroy, Boris and Turbelin, Anna J. and Kramer, Andrew M. and Verbrugge, Laura N.H. and Diagne, Christophe and Courchamp, Franck and Gozlan, Rodolphe E.} } @article {8884, title = {Managing biological invasions: the cost of inaction}, journal = {Biological Invasions}, volume = {24}, year = {2022}, month = {Jan-07-2022}, pages = {1927 - 1946}, issn = {1387-3547}, doi = {10.1007/s10530-022-02755-0}, url = {https://link.springer.com/10.1007/s10530-022-02755-0}, author = {Ahmed, Danish A. and Hudgins, Emma J. and Cuthbert, Ross N. and Kourantidou, Melina and Diagne, Christophe and Haubrock, Phillip J. and Leung, Brian and Liu, Chunlong and Leroy, Boris and Petrovskii, Sergei and Beidas, Ayah and Courchamp, Franck} } @article {8883, title = {On the road: Anthropogenic factors drive the invasion risk of a wild solitary bee species}, journal = {Science of The Total Environment}, volume = {827}, year = {2022}, month = {Jan-06-2022}, pages = {154246}, issn = {00489697}, doi = {10.1016/j.scitotenv.2022.154246}, url = {https://linkinghub.elsevier.com/retrieve/pii/S0048969722013389}, author = {Lanner, Julia and Dubos, Nicolas and Geslin, Beno{\^\i}t and Leroy, Boris and Hern{\'a}ndez-Castellano, Carlos and Dubai{\'c}, Jovana Bila and Bortolotti, Laura and Calafat, Joan Diaz and {\'C}etkovi{\'c}, Aleksandar and Flaminio, Simone and Le F{\'e}on, Violette and Margalef-Marrase, Jordi and Orr, Michael and Pachinger, B{\"a}rbel and Ruzzier, Enrico and Smagghe, Guy and Tuerlings, Tina and Vereecken, Nicolas J. and Meimberg, Harald} } @article {8426, title = {Anthropogenic pressures coincide with Neotropical biodiversity hotspots in a flagship butterfly group}, journal = {Diversity and Distributions}, year = {2021}, month = {12/2021}, issn = {1366-9516}, doi = {10.1111/ddi.13455}, url = {https://onlinelibrary.wiley.com/doi/10.1111/ddi.13455}, author = {Dor{\'e}, Ma{\"e}l and Willmott, Keith and Leroy, Boris and Chazot, Nicolas and Mallet, James and Freitas, Andr{\'e} V. L. and Hall, Jason P. W. and Lamas, Gerardo and Dasmahapatra, Kanchon K. and Fontaine, Colin and Elias, Marianne} } @article {8654, title = {Biological invasions in France: Alarming costs and even more alarming knowledge gaps}, journal = {NeoBiota}, volume = {67}, year = {2021}, month = {May-07-2023}, pages = {191 - 224}, issn = {1619-0033}, doi = {10.3897/neobiota.67.59134}, url = {https://neobiota.pensoft.net/article/59134/}, author = {Renault, David and Manfrini, El{\'e}na and Leroy, Boris and Diagne, Christophe and Ballesteros-Mejia, Liliana and Angulo, Elena and Courchamp, Franck} } @article {8143, title = {Cumulative effects of marine renewable energy and climate change on ecosystem properties: Sensitivity of ecological network analysis}, journal = {Ecological Indicators}, volume = {121}, year = {2021}, month = {Jan-02-2021}, pages = {107128}, issn = {1470160X}, doi = {10.1016/j.ecolind.2020.107128}, url = {https://linkinghub.elsevier.com/retrieve/pii/S1470160X20310670}, author = {Nogues, Quentin and Raoux, Aurore and Araignous, Emma and Chaalali, Aur{\'e}lie and Hattab, Tarek and Leroy, Boris and Ben Rais Lasram, Frida and David, Val{\'e}rie and Le Loc{\textquoteright}h, Francois and Dauvin, Jean-Claude and Nathalie Niquil} } @article {8886, title = {Detailed assessment of the reported economic costs of invasive species in Australia}, journal = {NeoBiota}, volume = {67}, year = {2021}, month = {May-07-2023}, pages = {511 - 550}, issn = {1619-0033}, doi = {10.3897/neobiota.67.5883410.3897/neobiota.67.58834.suppl1}, url = {https://neobiota.pensoft.net/article/58834/}, author = {Bradshaw, Corey J. A. and Hoskins, Andrew J. and Haubrock, Phillip J. and Cuthbert, Ross N. and Diagne, Christophe and Leroy, Boris and Andrews, Lindell and Page, Brad and Cassey, Phill and Sheppard, Andy W. and Courchamp, Franck} } @article {8655, title = {The economic costs of biological invasions in Africa: a growing but neglected threat?}, journal = {NeoBiota}, volume = {67}, year = {2021}, month = {May-07-2023}, pages = {11 - 51}, issn = {1619-0033}, doi = {10.3897/neobiota.67.59132}, url = {https://neobiota.pensoft.net/article/59132/}, author = {Diagne, Christophe and Turbelin, Anna J. and Moodley, Desika and Novoa, Ana and Leroy, Boris and Angulo, Elena and Adamjy, Tasnime and Dia, Cheikh A.K.M. and Taheri, Ahmed and Tambo, Justice and Dobigny, Gauthier and Courchamp, Franck} } @article {8656, title = {Economic costs of biological invasions within North America}, journal = {NeoBiota}, volume = {67}, year = {2021}, month = {07/2021}, pages = {485-510}, author = {Crystal-Ornelas, Rob and Hudgins, Emma J and Cuthbert, Ross N. and Haubrock, Phillip J. and Fantle-Lepczyk, J and Angulo, Elena and Kramer, Andrew M. and Ballesteros-Mejia, Liliana and Leroy, Boris and Leung, Brian and L{\'o}pez-L{\'o}pez, E and Diagne, Christophe and Courchamp, Franck} } @article {8144, title = {Economic costs of invasive alien species across Europe}, journal = {NeoBiota}, volume = {67}, year = {2021}, month = {May-07-2023}, pages = {153 - 190}, issn = {1619-0033}, doi = {10.3897/neobiota.67.58196}, url = {https://neobiota.pensoft.net/article/58196/}, author = {Haubrock, Phillip J. and Turbelin, Anna J. and Cuthbert, Ross N. and Novoa, Ana and Taylor, Nigel G. and Angulo, Elena and Ballesteros-Mejia, Liliana and Bodey, Thomas W. and Capinha, C{\'e}sar and Diagne, Christophe and Essl, Franz and Golivets, Marina and Kirichenko, Natalia and Kourantidou, Melina and Leroy, Boris and Renault, David and Verbrugge, Laura and Courchamp, Franck} } @article {8653, title = {Economic costs of invasive alien species in the Mediterranean basin}, journal = {NeoBiota}, volume = {67}, year = {2021}, month = {May-07-2023}, pages = {427 - 458}, issn = {1619-0033}, doi = {10.3897/neobiota.67.5892610.3897/neobiota.67.58926.suppl110.3897/neobiota.67.58926.suppl2}, url = {https://neobiota.pensoft.net/article/58926/}, author = {Kourantidou, Melina and Cuthbert, Ross N. and Haubrock, Phillip J. and Novoa, Ana and Taylor, Nigel G. and Leroy, Boris and Capinha, C{\'e}sar and Renault, David and Angulo, Elena and Diagne, Christophe and Courchamp, Franck} } @article {7412, title = {European small pelagic fish distribution under global change scenarios}, journal = {Fish and Fisheries}, volume = {22}, year = {2021}, month = {10/2020}, pages = {212-225}, abstract = {The spectre of increasing impacts on exploited fish stocks in consequence of warmer climate conditions has become a major concern over the last decades. It is now imperative to improve the way we project the effects of future climate warming on fisheries. While estimating future climate-induced changes in fish distribution is an important contribution to sustainable resource management, the impacts on European small pelagic fish{\textemdash}representing over 50\% of the landings in the Mediterranean and Black Sea between 2000 and 2013{\textemdash}are yet largely understudied. Here, we investigated potential changes in the spatial distribution of seven of the most harvested small pelagic fish species in Europe under several climate change scenarios over the 21st century. For each species, we considered eight Species Distribution Models (SDMs), five General Circulation Models (GCMs) and three emission scenarios (the IPCC Representative Concentration Pathways; RCPs). Under all scenarios, our results revealed that the environmental suitability for most of the seven species may strongly decrease in the Mediterranean and western North Sea while increasing in the Black and Baltic Seas. This potential northward range expansion of species is supported by a strong convergence among projections and a low variability between RCPs. Under the most pessimistic scenario (RCP8.5), climate-related local extinctions were expected in the south-eastern Mediterranean basin. Our results highlight that a multi-SDM, multi-GCM, multi-RCP approach is needed to produce more robust ecological scenarios of changes in exploited fish stocks in order to better anticipate the economic and social consequences of global climate change.}, issn = {1467-2960}, doi = {10.1111/faf.12515}, url = {https://onlinelibrary.wiley.com/doi/10.1111/faf.12515}, author = {Schickele, Alexandre and Goberville, Eric and Leroy, Boris and Gr{\'e}gory Beaugrand and Hattab, Tarek and Patrice Francour and Virginie Raybaud} } @article {8139, title = {High and rising economic costs of biological invasions worldwide}, journal = {Nature}, volume = {592}, year = {2021}, month = {Oct-04-2022}, pages = {571 - 576}, issn = {0028-0836}, doi = {10.1038/s41586-021-03405-6}, url = {http://www.nature.com/articles/s41586-021-03405-6}, author = {Diagne, Christophe and Leroy, Boris and Vaissi{\`e}re, Anne-Charlotte and Gozlan, Rodolphe E. and Roiz, David and Jari{\'c}, Ivan and Salles, Jean-Michel and Bradshaw, Corey J. A. and Courchamp, Franck} } @article {8147, title = {Impacts of climate change on the Bay of Seine ecosystem: Forcing a spatio-temporal trophic model with predictions from an ecological niche model}, journal = {Fisheries Oceanography}, volume = {30}, year = {2021}, month = {Jan-09-2021}, pages = {471 - 489}, issn = {1054-6006}, doi = {10.1111/fog.v30.510.1111/fog.12531}, url = {https://onlinelibrary.wiley.com/toc/13652419/30/5}, author = {Bourdaud, Pierre and Ben Rais Lasram, Frida and Araignous, Emma and Champagnat, Juliette and Grusd, Samantha and Halouani, Ghassen and Hattab, Tarek and Leroy, Boris and Nogues, Quentin and Raoux, Aurore and Safi, Georges and Nathalie Niquil} } @article {8145, title = {Revisiting species and areas of interest for conserving global mammalian phylogenetic diversity}, journal = {Nature Communications}, volume = {12}, year = {2021}, month = {Jan-12-2021}, doi = {10.1038/s41467-021-23861-y}, url = {http://www.nature.com/articles/s41467-021-23861-y}, author = {Robuchon, Marine and Pavoine, Sandrine and V{\'e}ron, Simon and Delli, Giacomo and Faith, Daniel P. and Mandrici, Andrea and Pellens, Roseli and Dubois, Gr{\'e}goire and Leroy, Boris} } @article {8142, title = {The globally invasive small Indian mongoose Urva auropunctata is likely to spread with climate changeAbstract}, journal = {Scientific Reports}, volume = {10}, year = {2020}, month = {Jan-12-2020}, doi = {10.1038/s41598-020-64502-6}, url = {http://www.nature.com/articles/s41598-020-64502-6}, author = {Louppe, Vivien and Leroy, Boris and Herrel, Anthony and Veron, G{\'e}raldine} } @article {7173, title = {Matching zooplankton abundance and environment in the South Indian Ocean and Southern Ocean}, journal = {Deep Sea Research Part I: Oceanographic Research Papers}, year = {2020}, month = {Jan-08-2020}, pages = {103347}, issn = {09670637}, doi = {10.1016/j.dsr.2020.103347}, url = {https://linkinghub.elsevier.com/retrieve/pii/S0967063720301345}, author = {Godet, Claire and Robuchon, Marine and Leroy, Boris and Cott{\'e}, C{\'e}dric and Baudena, Alberto and Da Silva, Oph{\'e}lie and Fabri-Ruiz, Salom{\'e} and Lo Monaco, Claire and Sergi, Sara and Koubbi, Philippe} } @article {6482, title = {Modelling European small pelagic fish distribution: Methodological insights}, journal = {Ecological Modelling}, volume = {416}, year = {2020}, month = {Jan-01-2020}, pages = {108902}, abstract = {The distribution of marine organisms is strongly influenced by climatic gradients worldwide. The ecological niche (sensu Hutchinson) of a species, i.e. the combination of environmental tolerances and resources required by an organism, interacts with the environment to determine its geographical range. This duality between niche and distribution allows climate change biologists to model potential species{\textquoteright} distributions from past to future conditions. While species distribution models (SDMs) have been intensively used over the last years, no consensual framework to parametrise, calibrate and evaluate models has emerged. Here, to model the contemporary (1990{\textendash}2017) spatial distribution of seven highly harvested European small pelagic fish species, we implemented a comprehensive and replicable numerical procedure based on 8 SDMs (7 from the Biomod2 framework plus the NPPEN model). This procedure considers critical issues in species distribution modelling such as sampling bias, pseudo-absence selection, model evaluation and uncertainty quantification respectively through (i) an environmental filtration of observation data, (ii) a convex hull based pseudo-absence selection, (iii) a multi-criteria evaluation of model outputs and (iv) an ensemble modelling approach. By mitigating environmental sampling bias in observation data and by identifying the most ecologically relevant predictors, our framework helps to improve the modelling of fish species{\textquoteright} environmental suitability. Not only average temperature, but also temperature variability appears as major factors driving small pelagic fish distribution, and areas of highest environmental suitability were found along the north-western Mediterranean coasts, the Bay of Biscay and the North Sea. We demonstrate in this study that the use of appropriate data pre-processing techniques, an often-overlooked step in modelling, increase model predictive performance, strengthening our confidence in the reliability of predictions.}, keywords = {Convex hull, Pseudo-absence, Sampling bias, Small pelagic fish, species distribution models, uncertainty}, issn = {03043800}, doi = {10.1016/j.ecolmodel.2019.108902}, url = {https://linkinghub.elsevier.com/retrieve/pii/S0304380019304107}, author = {Schickele, Alexandre and Leroy, Boris and Gr{\'e}gory Beaugrand and Goberville, Eric and Hattab, Tarek and Patrice Francour and Virginie Raybaud} } @article {8141, title = {An open-source framework to model present and future marine species distributions at local scale}, journal = {Ecological Informatics}, volume = {59}, year = {2020}, month = {Jan-09-2020}, pages = {101130}, issn = {15749541}, doi = {10.1016/j.ecoinf.2020.101130}, url = {https://linkinghub.elsevier.com/retrieve/pii/S1574954120300807}, author = {Ben Rais Lasram, Frida and Hattab, Tarek and Nogues, Quentin and Beaugrand, Gr{\'e}gory and Dauvin, Jean Claude and Halouani, Ghassen and Le Loc{\textquoteright}h, Francois and Nathalie Niquil and Leroy, Boris} } @article {6688, title = {Correlations between broad-scale taxonomic and genetic differentiations suggest a dominant imprint of historical processes on beta diversities}, journal = {Journal of Biogeography}, volume = {46}, year = {2019}, month = {Jan-05-2020}, pages = {1083 - 1095}, issn = {0305-0270}, doi = {10.1111/jbi.2019.46.issue-510.1111/jbi.13559}, url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/jbi.13559}, author = {Robuchon, Marine and Leroy, Boris and J{\'e}z{\'e}quel, C{\'e}line and Hugueny, Bernard} } @article {6693, title = {Current and future climatic regions favourable for a globally introduced wild carnivore, the raccoon Procyon lotor}, journal = {Scientific Reports}, volume = {9}, year = {2019}, month = {Jan-12-2019}, doi = {10.1038/s41598-019-45713-y}, url = {https://www.nature.com/articles/s41598-019-45713-y}, author = {Louppe, Vivien and Leroy, Boris and Herrel, Anthony and Veron, G{\'e}raldine} } @article {6690, title = {Detecting outliers in species distribution data: Some caveats and clarifications on a virtual species study}, journal = {Journal of Biogeography}, volume = {46}, year = {2019}, month = {Feb-09-2019}, pages = {2141 - 2144}, issn = {0305-0270}, doi = {10.1111/jbi.13626}, url = {https://onlinelibrary.wiley.com/doi/full/10.1111/jbi.13626}, author = {Meynard, Christine N. and Kaplan, David M. and Leroy, Boris}, editor = {Pearman, Peter B.} } @article {6694, title = {Global biogeographical regions of freshwater fish species}, journal = {Journal of Biogeography}, volume = {46}, year = {2019}, month = {Jun-11-2019}, pages = {2407 - 2419}, issn = {0305-0270}, doi = {10.1111/jbi.13674}, url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/jbi.13674}, author = {Leroy, Boris and Dias, Murilo S. and Giraud, Emilien and Hugueny, Bernard and J{\'e}z{\'e}quel, C{\'e}line and Leprieur, Fabien and Oberdorff, Thierry and Pablo Tedesco} } @article {6689, title = {Species splitting increases estimates of evolutionary history at risk}, journal = {Biological Conservation}, volume = {235}, year = {2019}, month = {Jan-07-2019}, pages = {27 - 35}, issn = {00063207}, doi = {10.1016/j.biocon.2019.03.041}, url = {https://www.sciencedirect.com/science/article/pii/S0006320718312400}, author = {Robuchon, Marine and Faith, Daniel P. and Julliard, Romain and Leroy, Boris and Pellens, Roseli and Robert, Alexandre and Th{\'e}venin, Charles and V{\'e}ron, Simon and Pavoine, Sandrine} } @article {6687, title = {Spontaneous recovery of functional diversity and rarity of ground-living spiders shed light on the conservation importance of recent woodlands}, journal = {Biodiversity and Conservation}, volume = {28}, year = {2019}, month = {Jan-03-2019}, pages = {687 - 709}, issn = {0960-3115}, doi = {10.1007/s10531-018-01687-3}, url = {http://link.springer.com/10.1007/s10531-018-01687-3}, author = {Morel, Lo{\"\i}s and Dujol, Beno{\^\i}t and Courtial, Cyril and Vasseur, Manon and Leroy, Boris and Fr{\'e}d{\'e}ric Ysnel} } @article {6692, title = {Testing methods in species distribution modelling using virtual species: what have we learnt and what are we missing?}, journal = {Ecography}, volume = {42}, year = {2019}, month = {May-12-2020}, pages = {2021 - 2036}, issn = {0906-7590}, doi = {10.1111/ecog.04385}, url = {https://onlinelibrary.wiley.com/doi/10.1111/ecog.04385}, author = {Meynard, Christine N. and Leroy, Boris and Kaplan, David M.} } @article {5282, title = {Aquatic urban ecology at the scale of a capital: community structure and interactions in street gutters.}, journal = {ISME J.}, volume = {12}, year = {2018}, month = {09/2017}, pages = {253{\textendash}266}, abstract = {

In most cities, streets are designed for collecting and transporting dirt, litter, debris, storm water and other wastes as a municipal sanitation system. Microbial mats can develop on street surfaces and form microbial communities that have never been described. Here, we performed the first molecular inventory of the street gutter-associated eukaryotes across the entire French capital of Paris and the non-potable waters sources. We found that the 5782 OTUs (operational taxonomic units) present in the street gutters which are dominated by diatoms (photoautotrophs), fungi (heterotrophs), Alveolata and Rhizaria, includes parasites, consumers of phototrophs and epibionts that may regulate the dynamics of gutter mat microbial communities. Network analyses demonstrated that street microbiome present many species restricted to gutters, and an overlapping composition between the water sources used for street cleaning (for example, intra-urban aquatic networks and the associated rivers) and the gutters. We propose that street gutters, which can cover a significant surface area of cities worldwide, potentially have important ecological roles in the remediation of pollutants or downstream wastewater treatments, might also be a niche for growth and dissemination of putative parasite and pathogens.The ISME Journal advance online publication, 13 October 2017; doi:10.1038/ismej.2017.166.

}, doi = {10.1038/ismej.2017.166}, url = {https://www.nature.com/articles/ismej2017166}, author = {Herv{\'e}, Vincent and Leroy, Boris and Da Silva Pires, Albert and Pascal Jean Lopez} } @article {5492, title = {Insights from modeling studies on how climate change affects invasive alien species geography}, journal = {Ecology and Evolution}, year = {2018}, month = {05/2018}, pages = {1-13}, abstract = {Climate change and biological invasions are threatening biodiversity and ecosystem services worldwide. It has now been widely acknowledged that climate change will affect biological invasions. A large number of studies have investigated predicted shifts and other changes in the geographic ranges of invasive alien species related to climate change using modeling approaches. Yet these studies have provided contradictory evidence, and no consensus has been reached. We conducted a systematic review of 423 modeling case studies included in 71 publications that have examined the predicted effects of climate change on those species. We differentiate the approaches used in these studies and synthesize their main results. Our results reaffirm the major role of climate change as a driver of invasive alien species distribution in the future. We found biases in the literature both regarding the taxa, toward plants and invertebrates, and the areas of the planet investigated. Despite these biases, we found for the plants and vertebrates studied that climate change will more frequently contribute to a decrease in species range size than an increase in the overall area occupied. This is largely due to oceans preventing terrestrial invaders from spreading poleward. In contrast, we found that the ranges of invertebrates and pathogens studied are more likely to increase following climate change. An important caveat to these findings is that researchers have rarely considered the effects of climate change on transport, introduction success, or the resulting impacts. We recommend closing these research gaps, and propose additional avenues for future investigations, as well as opportunities and challenges for managing invasions under climate change.}, doi = {https://doi.org/10.1002/ece3.4098}, url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/ece3.4098}, author = {Bellard, C{\'e}line and Jeschke, Jonathan M and Leroy, Boris and Mace, Georgina M} } @article {6691, title = {Insights from modeling studies on how climate change affects invasive alien species geography}, journal = {Ecology and Evolution}, volume = {8}, year = {2018}, month = {Jan-06-2018}, pages = {5688 - 5700}, doi = {10.1002/ece3.4098}, url = {https://onlinelibrary.wiley.com/doi/full/10.1002/ece3.4098}, author = {Bellard, C{\'e}line and Jeschke, Jonathan M. and Leroy, Boris and Mace, Georgina M.} } @article {5491, title = {Small and large spatial scale coexistence of ctenid spiders in a neotropical forest (French Guiana)}, journal = {Tropical Zoology}, volume = {31}, year = {2018}, month = {04/2018}, pages = {85-98}, abstract = {While spiders constitute the most abundant and diverse arthropods in many habitats, they remained under-studied, especially in tropical rainforests. The goal of this study is to assess the spatial distribution of the spider family Ctenidae by assessing associations of species diversity and population traits among different habitat conditions. Fieldwork was carried out during 2013 in habitats varying in flooding frequency (plateau vs. flooded forest) and elevation (inselberg vs. lowland) in the Nouragues National Natural Reserve, French Guiana. Assemblage composition, population structure, and trait measurements of one dominant species were assessed using hand collection in replicated quadrats. We found strong effects on ctenid assemblages attributable to both elevation and flooding, with changes in relative abundance of species among habitats, but few correlated densities between species. At the population level, main differences in species distribution between and within habitats were detected only when juveniles were taken into account. No effect of elevation was found on the measurements of traits of the dominant species, but legs were proportionally shorter in flooded habitats, suggesting reduced active dispersal in these habitats. Our study highlights the value of complementary of measures of diversity and traits at different biological scales in Ctenidae.}, keywords = {Araneae, flooding, Guianese shield, inselberg, juveniles}, doi = {https://doi.org/10.1080/03946975.2018.1448531}, url = {https://www.tandfonline.com/doi/full/10.1080/03946975.2018.1448531}, author = {Petillon, J and Leroy, Boris and Djoudi, EA and Vedel, V} } @article {8138, title = {Small and large spatial scale coexistence of ctenid spiders in a neotropical forest (French Guiana)}, journal = {Tropical Zoology}, volume = {31}, year = {2018}, month = {Mar-04-2018}, pages = {85 - 98}, issn = {0394-6975}, doi = {10.1080/03946975.2018.1448531}, url = {https://www.tandfonline.com/doi/full/10.1080/03946975.2018.1448531}, author = {P{\'e}tillon, Julien and Leroy, Boris and Djoudi, El Aziz and VEDEL, Vincent} } @article {6686, title = {Without quality presence-absence data, discrimination metrics such as TSS can be misleading measures of model performance}, journal = {Journal of Biogeography}, volume = {45}, year = {2018}, month = {Jan-09-2018}, pages = {1994 - 2002}, doi = {10.1111/jbi.2018.45.issue-910.1111/jbi.13402}, url = {http://doi.wiley.com/10.1111/jbi.2018.45.issue-9http://doi.wiley.com/10.1111/jbi.13402http://onlinelibrary.wiley.com/wol1/doi/10.1111/jbi.13402/fullpdfhttps://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111\%2Fjbi.13402}, author = {Leroy, Boris and Delsol, Robin and Hugueny, Bernard and Meynard, Christine N. and Barhoumi, Ch{\'e}{\"\i}ma and Barbet-Massin, Morgane and Bellard, C{\'e}line} } @article {5284, title = {Applying species distribution models to caves and other subterranean habitats}, journal = {Ecography}, volume = {40}, year = {2017}, month = {10/2017}, pages = {1-14}, abstract = {

Over the last two decades there has been an exponential increase in the use of correlative species distribution models (SDMs) to address a variety of topics in ecology, biogeography, evolution, and conservation biology. Conversely, the use of these statistical methods to study the potential distribution of subterranean organisms has lagged behind, relative to their above-ground (epigean) counterparts. The reason for this is possibly related to a number of peculiarities of subterranean systems, which pose important limits, but also opportunities, for these correlative models. The aim of this forum is to explore the caveats that need to be made when generalizing these statistical techniques to caves and other subterranean habitats. We focus on the typical bias in spatial datasets of cave-dwelling species, and provide advice for selecting the model calibration area. In parallel, we discuss the potential use of different large scale surface variables to represent the subterranean condition. A more widespread adoption of these statistical techniques in subterranean biology is highly attractive and has great potential in broadening our knowledge on a variety of ecological topics, especially in the fields of climate change and biodiversity conservation. Their use would especially benefit the study of the biogeographic patterns of subterranean fauna and the impact of past and future climate change on subterranean ecosystems.

}, doi = {10.1111/ecog.03464}, url = {http://onlinelibrary.wiley.com/doi/10.1111/ecog.03464/full}, author = {Mammola, Stefano and Leroy, Boris} } @article {4751, title = {{Cross-taxon congruence in the rarity of subtidal rocky marine assemblages : No taxonomic shortcut for conservation monitoring}}, journal = {Ecological Indicators}, volume = {77}, year = {2017}, pages = {239{\textendash}249}, abstract = {The implementation of protection strategies such as the European Marine Strategy Framework Directive (2008/56/EC) is impeded for subtidal rock bottom habitats because of high sampling costs due to a very wide taxonomic diversity, and a lack of suitable evaluation tools to estimate their conservation importance. In this study, we seek to provide an evaluation procedure by (1) investigating the distribution of rarity among subtidal rock bottom phyla; (2) searching for potential surrogate phyla with a cross-taxon congruence approach based on their rarity; (3) proposing an appropriate multi-phyla indicator to evaluate the importance of subtidal rocky habitats for conservation. We analysed the distribution of 548 species belonging to 8 phyla sampled in 137 assemblages in subtidal rocky areas located around Brittany, Western France. We applied the Index of Relative Rarity, a flexible method which fits rarity weights to species depending on their respective phyla. We found only weak congruence in rarity patterns among phyla, which prevented any attempt to identify surrogate phyla. This finding has important implications for the conservation of subtidal rocky habitats as it means that there is no shortcut to monitor their rarity: working on a subset of phyla would imply a biased evaluation of biodiversity. Consequently, we propose a multi-phyla Index of Relative Rarity combining all phyla which allowed us to successfully describe rarity patterns across all sampled sites.}, keywords = {occurrence-based rarity, subtidal conservation}, issn = {1470-160X}, doi = {10.1016/j.ecolind.2017.02.012}, url = {http://dx.doi.org/10.1016/j.ecolind.2017.02.012}, author = {Leroy, Boris and R{\'e}gis Gallon and Eric Feunteun and Robuchon, Marine and Fr{\'e}d{\'e}ric Ysnel} } @article {5283, title = {A global picture of biological invasion threat on islands.}, journal = {Nature Ecology \& Evolution}, volume = {1}, year = {2017}, month = {11/2017}, pages = {1862-1869}, abstract = {

Biological invasions are among the main drivers of biodiversity losses. As threats from biological invasions increase, one of the most urgent tasks is to identify areas of high vulnerability. However, the lack of comprehensive information on the impacts of invasive alien species (IAS) is a problem especially on islands, where most of the recorded extinctions associated with IAS have occurred. Here we provide a global, network-oriented analysis of IAS on islands. Using network analysis, we structured 27,081 islands and 437 threatened vertebrates into 21 clusters, based on their profiles in term of invasiveness and shared vulnerabilities. These islands are mainly located in the Southern Hemisphere and many are in biodiversity hotspots. Some of the islands share similar characteristics regarding their connectivity that could be useful for understanding their response to invasive species. The major invaders found in these clusters of islands are feral cats, feral dogs, pigs and rats. Our analyses reveal those IAS that systematically act alone or in combination, and the pattern of shared IAS among threatened species, providing new information to implement effective eradication strategies. Combined with further local, contextual information this can contribute to global strategies to deal with IAS.

}, doi = {10.1038/s41559-017-0365-6}, url = {https://www.nature.com/articles/s41559-017-0365-6}, author = {Bellard, C{\'e}line and Rysman, Jean-Fran{\c c}ois and Leroy, Boris and Claud, C and Mace, Georgina M} } @article {5285, title = {Present and future distribution of three aquatic plants taxa across the world: decrease in native and increase in invasive ranges}, journal = {Biological Invasions}, volume = {19}, year = {2017}, month = {04/2017}, pages = {2159-2170}, abstract = {

Inland aquatic ecosystems are vulnerable to both climate change and biological invasion at broad spatial scales. The aim of this study was to establish the current and future potential distribution of three invasive plant taxa, Egeria densa, Myriophyllum aquaticum and Ludwigia spp., in their native and exotic ranges. We used species distribution models (SDMs), with nine different algorithms and three global circulation models, and we restricted the suitability maps to cells containing aquatic ecosystems. The current bioclimatic range of the taxa was predicted to represent 6.6{\textendash}12.3\% of their suitable habitats at global scale, with a lot of variations between continents. In Europe and North America, their invasive ranges are predicted to increase up to two\ fold by 2070 with the highest gas emission scenario. Suitable new areas will mainly be located to the north of their current range. In other continents where they are exotic and in their native range (South America), the surface areas of suitable locations are predicted to decrease with climate change, especially for Ludwigia spp. in South America (down to -55\% by 2070 with RCP 8.5 scenario). This study allows to identify areas vulnerable to ongoing invasions by aquatic plant species and thus could help the prioritisation of monitoring and management, as well as contribute to the public awareness regarding biological invasions.

}, doi = {10.1007/s10530-017-1428-y}, url = {https://link.springer.com/article/10.1007/s10530-017-1428-y}, author = {Gillard, Morgane and Thi{\'e}baut, Gabrielle and Deleu, Carole and Leroy, Boris} } @article {4745, title = {Structural bias in aggregated species-level variables driven by repeated species co-occurrences: a pervasive problem in community and assemblage data}, journal = {Journal of Biogeography}, year = {2017}, month = {02/2017}, abstract = {Aim Species attributes are often used to explain diversity patterns across assemblages/communities. However, repeated species co-occurrences can generate spatial pattern and strong statistical relationships between aggregated attributes and richness in the absence of biological information. Our aim is to increase awareness of this problem. Location North America. Methods We generated empirical species richness patterns using two data structures: (1) birds gridded from range maps and (2) tree communities from the US Forest Service{\textquoteright}s Forest Inventory and Analysis. We analysed richness using linear regression, regression trees, generalized additive models, geographically weighted regression and simultaneous autoregression, with {\textquoteleft}random intrinsic variables{\textquoteright} as predictors generated by assigning random numbers to species and calculating averages in assemblages. We then generated simulations in which species with cohesive or patchy distributions are placed with respect to the North American temperature gradient with or without a broad-scale richness gradient. Random intrinsic variables are again used as predictors of richness. Finally, we analysed one simulated scenario with random intrinsic variables as both response and predictor variables. Results The models of bird and tree richness often explained moderate to large proportions of the variance. Regression trees, geographically weighted regression and simultaneous autoregression were very sensitive to the problem; generalized additive models were moderately affected, as was multiple regression to a lesser extent. In the virtual data, the variance explained increased with increasing species co-occurrences, but neither range cohesion, a richness gradient nor spatial autocorrelation in predictors had major impacts on the variance explained. The problem persisted when the response variable was also a random intrinsic variable. Main conclusions Repeated species co-occurrences can generate strong spurious relationships between richness and aggregated species attributes. It is important to realize that models utilizing assemblage variables aggregated from species-level values, as well as maps illustrating their spatial patterns, cannot be taken at face value.}, keywords = {community structure, community weighted means, geographical ecology, intrinsic variables, spatial analysis, species co-occurrence, species composition, species richness gradients, trait analysis}, issn = {1365-2699}, doi = {10.1111/jbi.12953}, url = {http://dx.doi.org/10.1111/jbi.12953}, author = {Hawkins, Bradford A. and Leroy, Boris and Rodr{\'\i}guez, Miguel {\'A}. and Singer, Alexander and Vilela, Bruno and Villalobos, Fabricio and Wang, Xiangping and Zelen{\'y}, David} } @article {4546, title = {Major drivers of invasion risks throughout the world}, journal = {Ecosphere}, volume = {7}, year = {2016}, pages = {e01241}, abstract = {In this paper, we investigate how climate, land use, habitat characteristics, and socioeconomic activities contribute to predict the current potential distributions of the {\textquotedblleft}100 among the world{\textquoteright}s worst invasive alien species{\textquotedblright}. We calculated the predictive power of each of the 41 variables for the 95 species including a large number of plants, vertebrates and invertebrates. We then calibrated the species distribution models with a set of appropriate variables for each invasive alien species to predict the potential distribution of these species and identify the major regions of origin of the invasive alien species. We found that climate variables were primarily predictors of the distribution of the global invaders studied. In addition, the habitat characteristics were also important predictors following by the socioeconomic variables such as the nearest distance to airports, seaports and human population density. We show that the potential areas at the highest risk of invasions from these species are located in Western Europe, Eastern United States, Central America, the eastern coast of Australia, and some Indonesian islands. We argue that these potential hotspots of invasions should be monitored in priority to prevent new invasions from these species. This study provides evidence of the importance of considering both habitat characteristics, socioeconomic and climate change factors for the current and future predictions of biological invasions.}, doi = {10.1002/ecs2.1241}, url = {http://onlinelibrary.wiley.com/doi/10.1002/ecs2.1241/full}, author = {Bellard, C{\'e}line and Leroy, Boris and Thuiller, Wilfried and Rysman, Jean-Fran{\c c}ois and Courchamp, Franck} } @article {4547, title = {Massive yet grossly underestimated global costs of invasive insects}, journal = {Nature Communications}, volume = {7}, year = {2016}, month = {10/2016}, pages = {12986}, abstract = {Insects have presented human society with some of its greatest development challenges by spreading diseases, consuming crops and damaging infrastructure. Despite the massive human and financial toll of invasive insects, cost estimates of their impacts remain sporadic, spatially incomplete and of questionable quality. Here we compile a comprehensive database of economic costs of invasive insects. Taking all reported goods and service estimates, invasive insects cost a minimum of US$70.0 billion per year globally, while associated health costs exceed US$6.9 billion per year. Total costs rise as the number of estimate increases, although many of the worst costs have already been estimated (especially those related to human health). A lack of dedicated studies, especially for reproducible goods and service estimates, implies gross underestimation of global costs. Global warming as a consequence of climate change, rising human population densities and intensifying international trade will allow these costly insects to spread into new areas, but substantial savings could be achieved by increasing surveillance, containment and public awareness.}, doi = {10.1038/ncomms12986}, url = {http://www.nature.com/ncomms/2016/161004/ncomms12986/full/ncomms12986.html}, author = {Bradshaw, Corey J.A. and Leroy, Boris and Bellard, C{\'e}line and Roiz, David and Albert, C{\'e}line and Fournier, Alice and Barbet-Massin, Morgane and Salles, Jean-Michel and Simard, Fr{\'e}d{\'e}ric and Courchamp, Franck} } @article {3829, title = {virtualspecies, an R package to generate virtual species distributions}, journal = {Ecography}, volume = {39}, year = {2016}, pages = {599-607}, abstract = {virtualspecies is a freely available package for R designed to generate virtual species distributions, a procedure increasingly used in ecology to improve species distribution models. This package combines the existing methodological approaches with the objective of generating virtual species distributions with increased ecological realism. The package includes (1) generating the probability of occurrence of a virtual species from a spatial set of environmental conditions (i.e., environmental suitability), with two different approaches; (2) converting the environmental suitability into presence-absence with a probabilistic approach; (3) introducing dispersal limitations in the realised virtual species distributions and (4) sampling occurrences with different biases in the sampling procedure. The package was designed to be extremely flexible, to allow users to simulate their own defined species-environment relationships, as well as to provide a fine control over every simulation parameter. The package also includes a function to generate random virtual species distributions. We provide a simple example in this paper showing how increasing ecological realism of the virtual species impacts the predictive performance of species distribution models. We expect that this new package will be valuable to researchers willing to test techniques and protocols of species distribution models as well as various biogeographical hypotheses.}, doi = {10.1111/ecog.01388}, url = {https://onlinelibrary.wiley.com/doi/full/10.1111/ecog.01388}, author = {Leroy, Boris and Meynard, Christine N. and Bellard, C{\'e}line and Courchamp, Franck} } @article {3659, title = {{Individual repeatability of foraging behaviour in a marine predator, the great cormorant, Phalacrocorax carbo}}, journal = {Animal Behaviour}, volume = {103}, year = {2015}, pages = {83{\textendash}90}, abstract = {Intrapopulation variability, especially individual foraging specialization, has been investigated in many species. Nevertheless, the repeatability of foraging behaviour remains poorly understood. In particular, whether individuals differ in their respective degrees of repeatability still remains to be determined. Here, we estimated foraging behaviour repeatability in the great cormorant, at both the population and the individual levels, and assessed the effect of repeatability on individual foraging performance. At the population level, we found that some foraging variables were more repeatable (e.g. departure angle and trip duration) than others (e.g. time spent underwater per trip). At the individual level, we found differences in the degree of repeatability for each foraging variable, highlighting the presence of both highly flexible and highly consistent individuals in the population. The effect of repeatability on individual performance depended on the considered timescale: individual-level repeatability of time spent underwater per dive was negatively related to foraging efficiency while individual-level repeatability of time spent underwater per trip was positively related to foraging efficiency. Overall, our study demonstrates the importance of studying repeatability at the individual level and shows how both flexibility and consistency in animal behaviour shape their ability to extract energy from the environment.}, keywords = {behavioural consistency, foraging efficiency, individual flexibility, individual repeatability, piscivorous bird}, issn = {00033472}, doi = {10.1016/j.anbehav.2015.02.008}, url = {http://www.sciencedirect.com/science/article/pii/S0003347215000652}, author = {Potier, Simon and Alexandre Carpentier and Gr{\'e}millet, David and Leroy, Boris and Lescro{\"e}l, Am{\'e}lie} } @article {3660, title = {{Complementarity of rarity, specialisation and functional diversity metrics to assess community responses to environmental changes, using an example of spider communities in salt marshes}}, journal = {Ecological Indicators}, volume = {46}, year = {2014}, pages = {351{\textendash}357}, abstract = {The study of community responses to environmental changes can be enhanced by the recent development of new metrics useful in applied conservation: relative rarity, ecological specialisation and functional diversity. These different metrics have been critically assessed independently, but are rarely combined in applied conservation studies, especially for less-studied taxa such as arthropods. Here we report how these different metrics can complement each other by using the response of spider communities to environmental changes in salt marshes as an example. Sampling took place using pitfall traps in salt marshes of the Mont St Michel Bay (France) during 2004 and 2007. The sampling design was spatially replicated (3 plots per treatment and 4 traps per plot) and encompassed four habitat treatments: control, sheep grazing, cutting (annual, in summer) and invasion by the plant Elymus athericus. We observed contrasting responses of spider communities to the different treatments: grazing had a negative impact on both rarity and functional diversity but a positive impact on specialisation; cutting had a negative impact on the three metrics; and invasion only had a negative impact on rarity and specialisation. These contrasting responses emphasise the necessity of using different complementary community metrics in such conservation studies. Consequently, rarity-, specialisation-, and functional-based indices should be applied simultaneously more frequently, as they potentially provide additional complementary information about communities. Such complementary information is the key to better-informed conservation choices.}, keywords = {Community Specialisation Index, CSI, Cutting, FDiv, Functional divergence, Functional Divergence Index, Grazing, Index of Relative Rarity, IRR, Species Specialisation Index, spiders, SSI}, issn = {1470160X}, doi = {10.1016/j.ecolind.2014.06.037}, url = {http://www.sciencedirect.com/science/article/pii/S1470160X14002908}, author = {Leroy, Boris and Le Viol, Isabelle and Petillon, J} } @article {3244, title = {Forecasted climate and land use changes, and protected areas: the contrasting case of spiders}, journal = {Diversity and Distributions}, volume = {20}, year = {2014}, pages = {686-697}, keywords = {Arthropods, ensemble forecast, global changes, species distribution models, threatened species, uncertainty}, doi = {10.1111/ddi.12191}, author = {Leroy, Boris and Bellard, C{\'e}line and Dubos, Nicolas and Colliot, Arthur and Vasseur, Manon and Courtial, Cyril and Bakkenes, Michel and Canard, A and Fr{\'e}d{\'e}ric Ysnel} } @article {3661, title = {{Intra- and inter-specific variation in size and habitus of two sibling spider species (Araneae: Lycosidae): taxonomic and biogeographic insights from sampling across Europe}}, journal = {Biological Journal of the Linnean Society}, volume = {113}, year = {2014}, pages = {85{\textendash}96}, issn = {00244066}, doi = {10.1111/bij.12303}, url = {http://doi.wiley.com/10.1111/bij.12303}, author = {Puzin, C and Leroy, Boris and Petillon, J} } @article {3662, title = {{Twenty years of observed and predicted changes in subtidal red seaweed assemblages along a biogeographical transition zone: inferring potential causes from environmental data}}, journal = {Journal of Biogeography}, volume = {41}, year = {2014}, pages = {2293{\textendash}2306}, issn = {03050270}, doi = {10.1111/jbi.12380}, url = {http://doi.wiley.com/10.1111/jbi.12380}, author = {R{\'e}gis Gallon and Robuchon, Marine and Leroy, Boris and Le Gall, L and Valero, Myriam and Eric Feunteun} } @article {8137, title = {Vulnerability of biodiversity hotspots to global change}, journal = {Global Ecology and Biogeography}, volume = {23}, year = {2014}, month = {Jan-12-2014}, pages = {1376 - 1386}, issn = {1466-822X}, doi = {10.1111/geb.2014.23.issue-1210.1111/geb.12228}, url = {https://onlinelibrary.wiley.com/toc/14668238/23/12}, author = {Bellard, C{\'e}line and Leclerc, Camille and Leroy, Boris and Bakkenes, Michel and Veloz, Samuel and Thuiller, Wilfried and Courchamp, Franck} } @article {8455, title = {First assessment of effects of global change on threatened spiders: Potential impacts on Dolomedes plantarius (Clerck) and its conservation plans}, journal = {Biological Conservation}, volume = {161}, year = {2013}, month = {Jan-05-2013}, pages = {155 - 163}, issn = {00063207}, doi = {10.1016/j.biocon.2013.03.022}, url = {https://linkinghub.elsevier.com/retrieve/pii/S000632071300089X}, author = {Leroy, Boris and Paschetta, Mauro and Canard, Alain and Bakkenes, Michel and Isaia, Marco and Fr{\'e}d{\'e}ric Ysnel} } @article {8456, title = {Improving occurrence-based rarity metrics in conservation studies by including multiple rarity cut-off points}, journal = {Insect Conservation and Diversity}, volume = {5}, year = {2012}, month = {Jan-03-2012}, pages = {159 - 168}, doi = {10.1111/icad.2012.5.issue-210.1111/j.1752-4598.2011.00148.x}, url = {http://doi.wiley.com/10.1111/icad.2012.5.issue-2}, author = {Leroy, Boris and P{\'e}tillon, Julien and R{\'e}gis Gallon and Canard, Alain and Fr{\'e}d{\'e}ric Ysnel} } @article {8457, title = {Rehabilitation project of a managed marsh: Biodiversity assessment of different management measures}, journal = {Procedia Environmental Sciences}, volume = {9}, year = {2011}, month = {Jan-01-2011}, pages = {96 - 103}, issn = {18780296}, doi = {10.1016/j.proenv.2011.11.016}, url = {https://linkinghub.elsevier.com/retrieve/pii/S187802961100778X}, author = {Leroy, Boris and Morel, Lo{\"\i}s and Eybert, Marie-Christine and Fr{\'e}d{\'e}ric Ysnel and Georges, Anita} }