Evaluating the impact of handling and logger attachment on foraging parameters and physiology in southern rockhopper penguins
Logger technology has revolutionised our knowledge of the behaviour and physiology of free-living animals but handling and logger attachments may have negative effects on the behaviour of the animals and their welfare. We studied southern rockhopper penguin (Eudyptes chrysocome) females during the g...
Main Authors: | , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2021
|
Subjects: | |
Online Access: | https://doi.org/10.1371/journal.pone.0050429 https://jlupub.ub.uni-giessen.de//handle/jlupub/193 https://doi.org/10.22029/jlupub-139 |
id |
ftubgiessen:oai:jlupub.ub.uni-giessen.de:jlupub/193 |
---|---|
record_format |
openpolar |
spelling |
ftubgiessen:oai:jlupub.ub.uni-giessen.de:jlupub/193 2024-05-12T08:10:26+00:00 Evaluating the impact of handling and logger attachment on foraging parameters and physiology in southern rockhopper penguins Ludynia, Katrin Dehnhard, Nina Poisbleau, Maud Demongin, Laurent Masello, Juan F. Quillfeldt, Petra 2021-08-19T12:59:20Z application/pdf https://doi.org/10.1371/journal.pone.0050429 https://jlupub.ub.uni-giessen.de//handle/jlupub/193 https://doi.org/10.22029/jlupub-139 en eng https://doi.org/10.1371/journal.pone.0050429 https://jlupub.ub.uni-giessen.de//handle/jlupub/193 http://dx.doi.org/10.22029/jlupub-139 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ ddc:570 article 2021 ftubgiessen https://doi.org/10.1371/journal.pone.005042910.22029/jlupub-139 2024-04-17T09:59:42Z Logger technology has revolutionised our knowledge of the behaviour and physiology of free-living animals but handling and logger attachments may have negative effects on the behaviour of the animals and their welfare. We studied southern rockhopper penguin (Eudyptes chrysocome) females during the guard stage in three consecutive breeding seasons (2008/09-2010/11) to evaluate the effects of handling and logger attachment on foraging trip duration, dive behaviour and physiological parameters. Smaller dive loggers (TDRs) were used in 2010/11 for comparison to larger GPS data loggers used in all three seasons and we included two categories of control birds: handled controls and PIT control birds that were previously marked with passive integrative transponders (PITs), but which had not been handled during this study. Increased foraging trip duration was only observed in GPS birds during 2010/11, the breeding season in which we also found GPS birds foraging further away from the colony and travelling longer distances. Compared to previous breeding seasons, 2010/11 may have been a period with less favourable environmental conditions, which would enhance the impact of logger attachments. A comparison between GPS and TDR birds showed a significant difference in dive depth frequencies with birds carrying larger GPS data loggers diving shallower. Mean and maximum dive depths were similar between GPS and TDR birds. We measured little impact of logger attachments on physiological parameters (corticosterone, protein, triglyceride levels and leucocyte counts). Overall, handling and short-term logger attachments (1-3 days) showed limited impact on the behaviour and physiology of the birds but care must be taken with the size of data loggers on diving seabirds. Increased drag may alter their diving behaviour substantially, thus constraining them in their ability to catch prey. Results obtained in this study indicate that data recorded may also not represent their normal dive behaviour. Article in Journal/Newspaper Rockhopper penguin Publication Server of the Justus-Liebig-University of Giessen |
institution |
Open Polar |
collection |
Publication Server of the Justus-Liebig-University of Giessen |
op_collection_id |
ftubgiessen |
language |
English |
topic |
ddc:570 |
spellingShingle |
ddc:570 Ludynia, Katrin Dehnhard, Nina Poisbleau, Maud Demongin, Laurent Masello, Juan F. Quillfeldt, Petra Evaluating the impact of handling and logger attachment on foraging parameters and physiology in southern rockhopper penguins |
topic_facet |
ddc:570 |
description |
Logger technology has revolutionised our knowledge of the behaviour and physiology of free-living animals but handling and logger attachments may have negative effects on the behaviour of the animals and their welfare. We studied southern rockhopper penguin (Eudyptes chrysocome) females during the guard stage in three consecutive breeding seasons (2008/09-2010/11) to evaluate the effects of handling and logger attachment on foraging trip duration, dive behaviour and physiological parameters. Smaller dive loggers (TDRs) were used in 2010/11 for comparison to larger GPS data loggers used in all three seasons and we included two categories of control birds: handled controls and PIT control birds that were previously marked with passive integrative transponders (PITs), but which had not been handled during this study. Increased foraging trip duration was only observed in GPS birds during 2010/11, the breeding season in which we also found GPS birds foraging further away from the colony and travelling longer distances. Compared to previous breeding seasons, 2010/11 may have been a period with less favourable environmental conditions, which would enhance the impact of logger attachments. A comparison between GPS and TDR birds showed a significant difference in dive depth frequencies with birds carrying larger GPS data loggers diving shallower. Mean and maximum dive depths were similar between GPS and TDR birds. We measured little impact of logger attachments on physiological parameters (corticosterone, protein, triglyceride levels and leucocyte counts). Overall, handling and short-term logger attachments (1-3 days) showed limited impact on the behaviour and physiology of the birds but care must be taken with the size of data loggers on diving seabirds. Increased drag may alter their diving behaviour substantially, thus constraining them in their ability to catch prey. Results obtained in this study indicate that data recorded may also not represent their normal dive behaviour. |
format |
Article in Journal/Newspaper |
author |
Ludynia, Katrin Dehnhard, Nina Poisbleau, Maud Demongin, Laurent Masello, Juan F. Quillfeldt, Petra |
author_facet |
Ludynia, Katrin Dehnhard, Nina Poisbleau, Maud Demongin, Laurent Masello, Juan F. Quillfeldt, Petra |
author_sort |
Ludynia, Katrin |
title |
Evaluating the impact of handling and logger attachment on foraging parameters and physiology in southern rockhopper penguins |
title_short |
Evaluating the impact of handling and logger attachment on foraging parameters and physiology in southern rockhopper penguins |
title_full |
Evaluating the impact of handling and logger attachment on foraging parameters and physiology in southern rockhopper penguins |
title_fullStr |
Evaluating the impact of handling and logger attachment on foraging parameters and physiology in southern rockhopper penguins |
title_full_unstemmed |
Evaluating the impact of handling and logger attachment on foraging parameters and physiology in southern rockhopper penguins |
title_sort |
evaluating the impact of handling and logger attachment on foraging parameters and physiology in southern rockhopper penguins |
publishDate |
2021 |
url |
https://doi.org/10.1371/journal.pone.0050429 https://jlupub.ub.uni-giessen.de//handle/jlupub/193 https://doi.org/10.22029/jlupub-139 |
genre |
Rockhopper penguin |
genre_facet |
Rockhopper penguin |
op_relation |
https://doi.org/10.1371/journal.pone.0050429 https://jlupub.ub.uni-giessen.de//handle/jlupub/193 http://dx.doi.org/10.22029/jlupub-139 |
op_rights |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1371/journal.pone.005042910.22029/jlupub-139 |
_version_ |
1798853888040763392 |