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Olivier Gimenez
Centre national de la recherche scientifique
235Publications
41H-index
5,949Citations
Publications 237
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Species distribution models (SDMs) are important statistical tools for ecologists to understand and predict species range. However, standard SDMs do not explicitly incorporate dynamic processes like dispersal. This limitation may lead to bias in inference about species distribution. Here, we adopt the theory of ecological diffusion that has recently been introduced in statistical ecology to incorporate spatio-temporal processes in ecological models. As a case study, we considered the wolf (Canis...
1. A major challenge in applied ecology consists in integrating knowledge from different datasets to produce robust ecological indicators. To estimate species distribution, occupancy models are a flexible framework that can accommodate several datasets obtained from different sampling methods. However, repeating visits at sampling sites is a prerequisite for using standard occupancy models, which may limit their use. Under certain conditions, detection/non-detection data collected during single ...
Source
#1Amandine Gamble (University of Montpellier)
#2Romain Garnier (Georgetown University)H-Index: 9
Last.Thierry Boulinier (University of Montpellier)H-Index: 10
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#1Lucile Marescot (University of Montpellier)H-Index: 6
#2Arnaud Lyet (WWF: World Wide Fund for Nature)H-Index: 7
Last.Olivier Gimenez (University of Montpellier)H-Index: 41
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#1Ian Renner (University of Newcastle)H-Index: 4
#2Julie Louvrier (Leibniz Association)H-Index: 1
Last.Olivier GimenezH-Index: 41
view all 3 authors...
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#1Olivier Gimenez (University of Montpellier)H-Index: 41
#2Sylvain GattiH-Index: 2
Last.Eric MarboutinH-Index: 13
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#1Marlène Gamelon (NTNU: Norwegian University of Science and Technology)H-Index: 12
#2Eric BaubetH-Index: 14
Last.Olivier Gimenez (CNRS: Centre national de la recherche scientifique)H-Index: 41
view all 8 authors...
Many populations are affected by hunting or fishing. Models designed to assess the sustainability of harvest management require accurate estimates of demographic parameters (e.g. survival, reproduction) hardly estimable with limited data collected on exploited populations. The joint analysis of different data sources with integrated population models (IPM) is an optimal framework to obtain reliable estimates for parameters usually difficult to estimate, while accounting for imperfect detection a...
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#1Tangi Le Bot (University of Montpellier)H-Index: 3
#2Amelie Lescroel (Point Blue Conservation Science)H-Index: 1
Last.David Grémillet (University of Montpellier)H-Index: 48
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Fisheries modify ecosystem balance by harvesting through marine food webs and producing large amounts of discards subsidizing scavengers. Among them, seabirds are the most conspicuous and have been benefiting from anthropogenic food sources generated by fisheries. However, this modified feeding behaviour also exposes them to threats, such as accidental bycatch on fishing gear and ecological traps set by discards of lower nutritional value compared to seabird natural prey. Seabird-fishery interac...
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#1A.‐S. Bonnet‐Lebrun (University of Montpellier)
#2Alexandros A. Karamanlidis (NMBU: Norwegian University of Life Sciences)H-Index: 16
Last.Olivier Gimenez (University of Montpellier)H-Index: 41
view all 5 authors...
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#1Cyril Milleret (NMBU: Norwegian University of Life Sciences)H-Index: 5
#2Pierre Dupont (NMBU: Norwegian University of Life Sciences)H-Index: 3
Last.Richard Bischof (NMBU: Norwegian University of Life Sciences)H-Index: 20
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The estimation of population size remains one of the primary goals and challenges in ecology and provides a basis for debate and policy in wildlife management. Despite the development of efficient non-invasive sampling methods and robust statistical tools to estimate abundance, maintenance of field sampling is still subject to economic and logistic constraints. These can result in intentional or unintentional interruptions in sampling and cause gaps in data time series, posing a challenge to abu...
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