FN Archimer Export Format
PT J
TI Flying to the moon: Lunar cycle influences trip duration and nocturnal foraging behavior of the wedge-tailed shearwater Ardenna pacifica
BT 
AF Ravache, Andreas
   Bourgeois, Karen
   Thibault, Martin
   Dromzée, Sylvain
   Weimerskirch, Henri
   de Grissac, Sophie
   Prudor, Aurélien
   Lorrain, Anne
   Menkes, Christophe
   Allain, Valerie
   Bustamante, Paco
   Letourneur, Yves
   Vidal, Eric
AS 1:1,2,3;2:1;3:2;4:1;5:4;6:4;7:4;8:5;9:2;10:6;11:7,8;12:3;13:1,2;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;
C1 IMBE, Aix-Marseille Université, CNRS, IRD, Avignon Université, Centre IRD Nouméa - BP A5, 98848 NouméaCedex, New-Caledonia, France
   UMR ENTROPIE (IRD—Université de La Réunion—CNRS), Laboratoire d'Excellence Labex-CORAIL, Institut de Recherche pour le Développement, BP A5, 98848 Nouméa Cedex, New Caledonia, France
   University of New Caledonia / ISEA, BP R4, 98851 Nouméa Cedex, New-Caledonia, France
   Centres d'Etudes Biologiques de Chizé – CNRS, France
   Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzane, France
   Secretariat of the Pacific Community, SPC, BP D5, 98848 Nouméa Cedex, New Caledonia, France
   Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS - La Rochelle Université, 2 Rue Olympe de Gouges, 17000 La Rochelle, France
   Institut Universitaire de France (IUF), 1 rue Descartes, 75005 Paris, France
C2 IRD, FRANCE
   IRD, FRANCE
   UNIV NEW CALEDONIA, FRANCE
   CNRS, FRANCE
   IRD, FRANCE
   SPC, FRANCE
   UNIV LA ROCHELLE, FRANCE
   INST UNIV FRANCE, FRANCE
UM LEMAR
   ENTROPIE
IN WOS Cotutelle UMR
   copubli-france
   copubli-univ-france
IF 2.171
TC 12
UR https://archimer.ifremer.fr/doc/00607/71880/70608.pdf
LA English
DT Article
DE ;Ardenna pacifica;Foraging;Lunar phase;Moon;GPS-tracking;Stable isotope analyses
AB Lunar phase and illumination are known to affect nocturnal behavior of many organisms, particularly through predator-prey interactions. Visual predators can benefit from higher light levels to increase their activity, while prey may decrease their activity to avoid predation. The lower number of nocturnal seabirds observed on colonies during full moon nights has been mostly interpreted as a predation avoidance strategy. However, it is also possible that shearwaters take advantage of the moon's illumination to feed also at night, and stay at sea to forage during full moon nights. We used miniaturized GPS-loggers to obtain 179 tracks from 99 wedge-tailed shearwaters breeding in New Caledonia, to investigate moonlight effects on individual behavior. Lunar phase significantly predicted self-provisioning trip duration, with individuals performing longer trips around the full moon. However, this relationship was not significant during chick-provisioning trips when adults have to frequently return to the colony. Adults mostly returned to the colony during moonlit periods, refuting the predation avoidance theory. Tracked individuals showed an unexpectedly high amount of nocturnal foraging activity (28% of total activity), positively influenced by the presence of the moon. δ15N stable isotope values were significantly related to the percentage of nocturnal foraging, but with a weak relationship, impeding our ability to confirm that wedge-tailed shearwaters fed on different prey when foraging at night. This study suggests that reduced colony attendance around the full moon may be linked to greater at-sea foraging opportunities in distant oceanic areas than to increased predation risk on land. 
PY 2020
PD APR
SO Journal Of Experimental Marine Biology And Ecology
SN 0022-0981
PU Elsevier BV
VL 525
UT 000520951000005
DI 10.1016/j.jembe.2020.151322
ID 71880
ER

EF