FN Archimer Export Format
PT J
TI Where to Forage in the Absence of Sea Ice? Bathymetry As a Key Factor for an Arctic Seabird
BT 
AF AMELINEAU, Francoise
   GREMILLET, David
   BONNET, Delphine
   LE BOT, Tangi
   FORT, Jerme
AS 1:1;2:1,2;3:3;4:1;5:4,5;
FF 1:;2:;3:;4:;5:;
C1 Univ Montpellier 3, Univ Montpellier, EPHE, CNRS,CEFE UMR 5175, Montpellier, France.
   Univ Cape Town, DST NRF Ctr Excellence, Percy FitzPatrick Inst, Rondebosch, South Africa.
   Univ Montpellier, Lab MARBEC, Montpellier, France.
   Aarhus Univ, Dept Biosci, Roskilde, Denmark.
   Univ La Rochelle, CNRS, LIENSs, UMR 7266, La Rochelle, France.
C2 UNIV MONTPELLIER, FRANCE
   UNIV CAPE TOWN, SOUTH AFRICA
   UNIV MONTPELLIER, FRANCE
   UNIV AARHUS, DENMARK
   UNIV LA ROCHELLE, FRANCE
UM MARBEC
IN DOAJ
IF 2.806
TC 42
UR https://archimer.ifremer.fr/doc/00626/73762/74032.pdf
   https://archimer.ifremer.fr/doc/00626/73762/74034.pdf
   https://archimer.ifremer.fr/doc/00626/73762/74035.pdf
   https://archimer.ifremer.fr/doc/00626/73762/74036.pdf
   https://archimer.ifremer.fr/doc/00626/73762/74037.pdf
   https://archimer.ifremer.fr/doc/00626/73762/74038.pdf
LA English
DT Article
AB The earth is warming at an alarming rate, especially in the Arctic, where a marked decline in sea ice cover may have far-ranging consequences for endemic species. Little auks, endemic Arctic seabirds, are key bioindicators as they forage in the marginal ice zone and feed preferentially on lipid-rich Arctic copepods and ice-associated amphipods sensitive to the consequences of global warming. We tested how little auks cope with an ice-free foraging environment during the breeding season. To this end, we took advantage of natural variation in sea ice concentration along the east coast of Greenland. We compared foraging and diving behaviour, chick diet and growth and adult body condition between two years, in the presence versus nearby absence of sea ice in the vicinity of their breeding site. Moreover, we sampled zooplankton at sea when sea ice was absent to evaluate prey location and little auk dietary preferences. Little auks foraged in the same areas both years, irrespective of sea ice presence/concentration, and targeted the shelf break and the continental shelf. We confirmed that breeding little auks showed a clear preference for larger copepod species to feed their chick, but caught smaller copepods and nearly no ice-associated amphipod when sea ice was absent. Nevertheless, these dietary changes had no impact on chick growth and adult body condition. Our findings demonstrate the importance of bathymetry for profitable little auk foraging, whatever the sea-ice conditions. Our investigations, along with recent studies, also confirm more flexibility than previously predicted for this key species in a warming Arctic. 
PY 2016
PD JUN
SO Plos One
SN 1932-6203
PU Public Library Science
VL 11
IS 7
UT 000380170100003
DI 10.1371/journal.pone.0157764
ID 73762
ER

EF