FN Archimer Export Format
PT J
TI Modeling the emergence of migratory corridors and foraging hot spots of the green sea turtle
BT 
AF Dalleau, Mayeul
   Kramer‐Schadt, Stephanie
   Gangat, Yassine
   Bourjea, Jerome
   Lajoie, Gilles
   Grimm, Volker
AS 1:1;2:2,3;3:4;4:5;5:6;6:7,8,9;
FF 1:;2:;3:;4:PDG-RBE-MARBEC-LHM;5:;6:;
C1 Centre d'Etude et de Découverte des Tortues Marines (CEDTM) Saint Leu/La Réunion ,France
   Department of Ecological Dynamics Leibniz Institute for Zoo and Wildlife Research Berlin, Germany
   Department of Ecology Technische Universität Berlin Berlin ,Germany
   LIM‐IREMIA, EA2525 University of La Réunion, PTU Sainte‐Clotilde/La Réunion, France
   Institut Français de Recherche pour l'Exploitation de la Mer MARBEC Université de Montpellier CNRS Ifremer IRD Sète Cedex ,France
   UMR Espace‐Dev University of La Réunion Saint‐Denis ,France
   Department of Ecological Modelling Helmholtz Centre for Environmental Research – UFZ Leipzig ,Germany
   Department of Plant Ecology and Nature Conservation University of Potsdam Potsdam‐Golm, Germany
   German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Leipzig ,Germany
C2 CEDTM, FRANCE
   IZW BERLIN, GERMANY
   UNIV BERLIN, GERMANY
   UNIV LA REUNION, FRANCE
   IFREMER, FRANCE
   UNIV LA REUNION, FRANCE
   UFZ, GERMANY
   UNIV POTSDAM, GERMANY
   IDIV, GERMANY
SI SETE
SE PDG-RBE-MARBEC-LHM
UM MARBEC
IN WOS Ifremer UMR
   DOAJ
   copubli-france
   copubli-europe
   copubli-univ-france
IF 2.392
TC 11
UR https://archimer.ifremer.fr/doc/00512/62337/66597.pdf
   https://archimer.ifremer.fr/doc/00512/62337/66598.pdf
LA English
DT Article
DE ;connectivity;corridors;individual-based model;migration;movement;sea turtle
AB Environmental factors shape the spatial distribution and dynamics of populations. Understanding how these factors interact with movement behavior is critical for efficient conservation, in particular for migratory species. Adult female green sea turtles, Chelonia mydas, migrate between foraging and nesting sites that are generally separated by thousands of kilometers. As an emblematic endangered species, green turtles have been intensively studied, with a focus on nesting, migration, and foraging. Nevertheless, few attempts integrated these behaviors and their trade‐offs by considering the spatial configurations of foraging and nesting grounds as well as environmental heterogeneity like oceanic currents and food distribution. We developed an individual‐based model to investigate the impact of local environmental conditions on emerging migratory corridors and reproductive output and to thereby identify conservation priority sites. The model integrates movement, nesting, and foraging behavior. Despite being largely conceptual, the model captured realistic movement patterns which confirm field studies. The spatial distribution of migratory corridors and foraging hot spots was mostly constrained by features of the regional landscape, such as nesting site locations, distribution of feeding patches, and oceanic currents. These constraints also explained the mixing patterns in regional forager communities. By implementing alternative decision strategies of the turtles, we found that foraging site fidelity and nesting investment, two characteristics of green turtles' biology, are favorable strategies under unpredictable environmental conditions affecting their habitats. Based on our results, we propose specific guidelines for the regional conservation of green turtles as well as future research suggestions advancing spatial ecology of sea turtles. Being implemented in an easy to learn open‐source software, our model can coevolve with the collection and analysis of new data on energy budget and movement into a generic tool for sea turtle research and conservation. Our modeling approach could also be useful for supporting the conservation of other migratory marine animals. 
PY 2019
PD SEP
SO Ecology And Evolution
SN 2045-7758
PU Wiley
VL 9
IS 18
UT 000481747800001
BP 10317
EP 10342
DI 10.1002/ece3.5552
ID 62337
ER

EF