FN Archimer Export Format
PT J
TI Seabird associations with mesoscale eddies: the subtropical Indian Ocean
BT 
AF HYRENBACH, K. David
   VEIT, Richard R.
   WEIMERSKIRCH, Henri
   HUNT, George L., Jr.
AS 1:1,5;2:2;3:3;4:4,5;
FF 1:;2:;3:;4:;
C1 Duke Univ, Marine Lab, Beaufort, NC 28516 USA.
   CUNY Coll Staten Isl, Dept Biol, Staten Isl, NY 10314 USA.
   Natl Ctr Sci Res, Ctr Etudes Biol Chize, F-79360 Villiers En Bois, France.
   Univ Calif Irvine, Dept Ecol & Evolutionary Biol, Irvine, CA 92697 USA.
   Univ Washington, Sch Aquat & Fishery Sci, Seattle, WA 98195 USA.
C2 UNIV DUKE, USA
   CUNY QUEENS COLL, USA
   CNRS, FRANCE
   UNIV CALIF IRVINE, USA
   UNIV WASHINGTON, USA
IF 2.286
TC 72
UR https://archimer.ifremer.fr/doc/00660/77170/78555.pdf
LA English
DT Article
CR OISO - OCÉAN INDIEN SERVICE D'OBSERVATION
DE ;altimetry;Indian Ocean;mesoscale eddies;remote sensing;seabirds;sea surface height anomalies
AB We investigated seabird-eddy associations in subtropical waters of the southern Indian Ocean during a summer (January) cruise from Amsterdam Island to Western Australia. To determine habitat associations and to enable predictions about foraging strategies, we related the distributions of satellite altimetry data (sea surface height anomalies) to the 3 most abundant taxa in the study area: terns (sooty Sterna fuscata and bridled S. anaethetus) and shearwaters (wedge-tailed Puffinus pacificus) were significantly more common and numerous within convergence zones. However, a step-wise logistic regression model revealed that these seabirds were more strongly associated with other habitat variables, including the distance to breeding colonies and warm sea surface temperature conditions. Great-winged petrels Pterodroma macroptera were widely scattered and did not show associations with convergences or divergences. These contrasting results highlight the need to consider smaller-scale hydrographic features, such as frontal systems, when quantifying seabird associations with mesoscale eddies. Large-scale patterns of ocean circulation and mesoscale variability also seem to play a critical role in determining the extent of seabird-eddy associations. In contrast with previous studies, which have focused on dynamic frontal regions and energetic current systems, we surveyed a region of weak mesoscale variability north of the Subtropical Convergence zone. 
PY 2006
SO Marine Ecology Progress Series
SN 0171-8630
PU Inter-research
VL 324
UT 000242376800022
BP 271
EP 279
DI 10.3354/meps324271
ID 77170
ER

EF