Larger foraging range but similar habitat selection in non-breeding versus breeding sub-Antarctic penguins
For land-breeding marine organisms such as seabirds, knowledge about their habitat use has mainly been gained through studies of breeding individuals that are constrained to return frequently to their breeding grounds. In this study we set out to measure whether: a) habitat selection in the non-bree...
Published in: | Antarctic Science |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press
2011
|
Subjects: | |
Online Access: | http://nora.nerc.ac.uk/id/eprint/13044/ https://nora.nerc.ac.uk/id/eprint/13044/1/-ANS-ANS23_02-S0954102010000957a.pdf |
id |
ftnerc:oai:nora.nerc.ac.uk:13044 |
---|---|
record_format |
openpolar |
spelling |
ftnerc:oai:nora.nerc.ac.uk:13044 2023-05-15T13:45:11+02:00 Larger foraging range but similar habitat selection in non-breeding versus breeding sub-Antarctic penguins Thiebot, Jean-Baptiste Lescroël, Amélie Pinaud, David Trathan, Philip N. Bost, Charles-André 2011 text http://nora.nerc.ac.uk/id/eprint/13044/ https://nora.nerc.ac.uk/id/eprint/13044/1/-ANS-ANS23_02-S0954102010000957a.pdf en eng Cambridge University Press https://nora.nerc.ac.uk/id/eprint/13044/1/-ANS-ANS23_02-S0954102010000957a.pdf Thiebot, Jean-Baptiste; Lescroël, Amélie; Pinaud, David; Trathan, Philip N. orcid:0000-0001-6673-9930 Bost, Charles-André. 2011 Larger foraging range but similar habitat selection in non-breeding versus breeding sub-Antarctic penguins. Antarctic Science, 23 (2). 117-126. https://doi.org/10.1017/S0954102010000957 <https://doi.org/10.1017/S0954102010000957> Marine Sciences Zoology Biology and Microbiology Ecology and Environment Publication - Article PeerReviewed 2011 ftnerc https://doi.org/10.1017/S0954102010000957 2023-02-04T19:28:22Z For land-breeding marine organisms such as seabirds, knowledge about their habitat use has mainly been gained through studies of breeding individuals that are constrained to return frequently to their breeding grounds. In this study we set out to measure whether: a) habitat selection in the non-breeding period predicts habitat selection in the breeding period, and b) whether breeding individuals concentrated their activity on the closest suitable habitats. Macaroni Eudyptes chrysolophus and gentoo Pygoscelis papua penguins, two marine predators with contrasting foraging strategies, were tracked from the Iles Kerguelen and their habitat selection investigated through Mahalanobis distances factorial analysis. This study presents the first data about gentoo penguins’ juvenile dispersal. For both species, results showed 6.9 times larger maximum ranges and up to 12.2 times greater distances travelled during the non-breeding period. Habitat suitability maps suggested both species made similar environmental selections whatever the period. Macaroni penguins targeted pelagic areas beyond the shelf break while gentoo penguins always remained over the shelf. We consider the ecological significance of larger scale movements made outside the breeding period and suggest that this non-breeding period is of particular interest when attempting to understand an animal’s habitat selection. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Eudyptes chrysolophus Pygoscelis papua Natural Environment Research Council: NERC Open Research Archive Antarctic Kerguelen Antarctic Science 23 2 117 126 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
topic |
Marine Sciences Zoology Biology and Microbiology Ecology and Environment |
spellingShingle |
Marine Sciences Zoology Biology and Microbiology Ecology and Environment Thiebot, Jean-Baptiste Lescroël, Amélie Pinaud, David Trathan, Philip N. Bost, Charles-André Larger foraging range but similar habitat selection in non-breeding versus breeding sub-Antarctic penguins |
topic_facet |
Marine Sciences Zoology Biology and Microbiology Ecology and Environment |
description |
For land-breeding marine organisms such as seabirds, knowledge about their habitat use has mainly been gained through studies of breeding individuals that are constrained to return frequently to their breeding grounds. In this study we set out to measure whether: a) habitat selection in the non-breeding period predicts habitat selection in the breeding period, and b) whether breeding individuals concentrated their activity on the closest suitable habitats. Macaroni Eudyptes chrysolophus and gentoo Pygoscelis papua penguins, two marine predators with contrasting foraging strategies, were tracked from the Iles Kerguelen and their habitat selection investigated through Mahalanobis distances factorial analysis. This study presents the first data about gentoo penguins’ juvenile dispersal. For both species, results showed 6.9 times larger maximum ranges and up to 12.2 times greater distances travelled during the non-breeding period. Habitat suitability maps suggested both species made similar environmental selections whatever the period. Macaroni penguins targeted pelagic areas beyond the shelf break while gentoo penguins always remained over the shelf. We consider the ecological significance of larger scale movements made outside the breeding period and suggest that this non-breeding period is of particular interest when attempting to understand an animal’s habitat selection. |
format |
Article in Journal/Newspaper |
author |
Thiebot, Jean-Baptiste Lescroël, Amélie Pinaud, David Trathan, Philip N. Bost, Charles-André |
author_facet |
Thiebot, Jean-Baptiste Lescroël, Amélie Pinaud, David Trathan, Philip N. Bost, Charles-André |
author_sort |
Thiebot, Jean-Baptiste |
title |
Larger foraging range but similar habitat selection in non-breeding versus breeding sub-Antarctic penguins |
title_short |
Larger foraging range but similar habitat selection in non-breeding versus breeding sub-Antarctic penguins |
title_full |
Larger foraging range but similar habitat selection in non-breeding versus breeding sub-Antarctic penguins |
title_fullStr |
Larger foraging range but similar habitat selection in non-breeding versus breeding sub-Antarctic penguins |
title_full_unstemmed |
Larger foraging range but similar habitat selection in non-breeding versus breeding sub-Antarctic penguins |
title_sort |
larger foraging range but similar habitat selection in non-breeding versus breeding sub-antarctic penguins |
publisher |
Cambridge University Press |
publishDate |
2011 |
url |
http://nora.nerc.ac.uk/id/eprint/13044/ https://nora.nerc.ac.uk/id/eprint/13044/1/-ANS-ANS23_02-S0954102010000957a.pdf |
geographic |
Antarctic Kerguelen |
geographic_facet |
Antarctic Kerguelen |
genre |
Antarc* Antarctic Antarctic Science Eudyptes chrysolophus Pygoscelis papua |
genre_facet |
Antarc* Antarctic Antarctic Science Eudyptes chrysolophus Pygoscelis papua |
op_relation |
https://nora.nerc.ac.uk/id/eprint/13044/1/-ANS-ANS23_02-S0954102010000957a.pdf Thiebot, Jean-Baptiste; Lescroël, Amélie; Pinaud, David; Trathan, Philip N. orcid:0000-0001-6673-9930 Bost, Charles-André. 2011 Larger foraging range but similar habitat selection in non-breeding versus breeding sub-Antarctic penguins. Antarctic Science, 23 (2). 117-126. https://doi.org/10.1017/S0954102010000957 <https://doi.org/10.1017/S0954102010000957> |
op_doi |
https://doi.org/10.1017/S0954102010000957 |
container_title |
Antarctic Science |
container_volume |
23 |
container_issue |
2 |
container_start_page |
117 |
op_container_end_page |
126 |
_version_ |
1766215351964532736 |