The foraging zones of breeding royal (Eudyptes schlegeli) and rockhopper (E-chrysocome) penguins: an assessment of techniques and species comparison
This study used VHF telemetry, time-depth recorders (TDRs) collecting geolocation and sea-surface temperature data, and foraging-trip durations to describe and compare the foraging zones of royal and rockhopper penguins at Macquarie Island. VHF telemetry was unsuccessful, but TDRs were deployed 61 t...
Published in: | Wildlife Research |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
CSIRO Publishing
1999
|
Subjects: | |
Online Access: | https://doi.org/10.1071/WR98028 http://ecite.utas.edu.au/16873 |
id |
ftunivtasecite:oai:ecite.utas.edu.au:16873 |
---|---|
record_format |
openpolar |
spelling |
ftunivtasecite:oai:ecite.utas.edu.au:16873 2023-05-15T17:09:58+02:00 The foraging zones of breeding royal (Eudyptes schlegeli) and rockhopper (E-chrysocome) penguins: an assessment of techniques and species comparison Hull, CL 1999 https://doi.org/10.1071/WR98028 http://ecite.utas.edu.au/16873 en eng CSIRO Publishing http://dx.doi.org/10.1071/WR98028 Hull, CL, The foraging zones of breeding royal (Eudyptes schlegeli) and rockhopper (E-chrysocome) penguins: an assessment of techniques and species comparison, Wildlife Research, 26, (6) pp. 789-803. ISSN 1035-3712 (1999) [Refereed Article] http://ecite.utas.edu.au/16873 Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Refereed Article PeerReviewed 1999 ftunivtasecite https://doi.org/10.1071/WR98028 2019-12-13T21:00:12Z This study used VHF telemetry, time-depth recorders (TDRs) collecting geolocation and sea-surface temperature data, and foraging-trip durations to describe and compare the foraging zones of royal and rockhopper penguins at Macquarie Island. VHF telemetry was unsuccessful, but TDRs were deployed 61 times across the four stages of the breeding season (males during incubation, females during incubation, guard stage and creche stage) during the 1994/95 and 1995/96 austral summers, with 37 providing data for analysis. The errors inherent in geolocation made it impossible to determine precise foraging zones and overlaps between the species. However, sea-surface temperature data and foraging-trip durations provided estimates of foraging zones. Both species foraged in waters of the same temperature (6.8-10.8C), representing the same regions of the polar frontal zone. It was estimated that rockhopper penguins did not travel as far as royal penguins, providing some degree of segregation in foraging zones. When the data were assessed contemporaneously, to take into account the 3-week asynchrony in the breeding season of the species, the overlap in foraging zones was small. Article in Journal/Newspaper Macquarie Island eCite UTAS (University of Tasmania) Austral Wildlife Research 26 6 789 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) |
spellingShingle |
Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Hull, CL The foraging zones of breeding royal (Eudyptes schlegeli) and rockhopper (E-chrysocome) penguins: an assessment of techniques and species comparison |
topic_facet |
Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) |
description |
This study used VHF telemetry, time-depth recorders (TDRs) collecting geolocation and sea-surface temperature data, and foraging-trip durations to describe and compare the foraging zones of royal and rockhopper penguins at Macquarie Island. VHF telemetry was unsuccessful, but TDRs were deployed 61 times across the four stages of the breeding season (males during incubation, females during incubation, guard stage and creche stage) during the 1994/95 and 1995/96 austral summers, with 37 providing data for analysis. The errors inherent in geolocation made it impossible to determine precise foraging zones and overlaps between the species. However, sea-surface temperature data and foraging-trip durations provided estimates of foraging zones. Both species foraged in waters of the same temperature (6.8-10.8C), representing the same regions of the polar frontal zone. It was estimated that rockhopper penguins did not travel as far as royal penguins, providing some degree of segregation in foraging zones. When the data were assessed contemporaneously, to take into account the 3-week asynchrony in the breeding season of the species, the overlap in foraging zones was small. |
format |
Article in Journal/Newspaper |
author |
Hull, CL |
author_facet |
Hull, CL |
author_sort |
Hull, CL |
title |
The foraging zones of breeding royal (Eudyptes schlegeli) and rockhopper (E-chrysocome) penguins: an assessment of techniques and species comparison |
title_short |
The foraging zones of breeding royal (Eudyptes schlegeli) and rockhopper (E-chrysocome) penguins: an assessment of techniques and species comparison |
title_full |
The foraging zones of breeding royal (Eudyptes schlegeli) and rockhopper (E-chrysocome) penguins: an assessment of techniques and species comparison |
title_fullStr |
The foraging zones of breeding royal (Eudyptes schlegeli) and rockhopper (E-chrysocome) penguins: an assessment of techniques and species comparison |
title_full_unstemmed |
The foraging zones of breeding royal (Eudyptes schlegeli) and rockhopper (E-chrysocome) penguins: an assessment of techniques and species comparison |
title_sort |
foraging zones of breeding royal (eudyptes schlegeli) and rockhopper (e-chrysocome) penguins: an assessment of techniques and species comparison |
publisher |
CSIRO Publishing |
publishDate |
1999 |
url |
https://doi.org/10.1071/WR98028 http://ecite.utas.edu.au/16873 |
geographic |
Austral |
geographic_facet |
Austral |
genre |
Macquarie Island |
genre_facet |
Macquarie Island |
op_relation |
http://dx.doi.org/10.1071/WR98028 Hull, CL, The foraging zones of breeding royal (Eudyptes schlegeli) and rockhopper (E-chrysocome) penguins: an assessment of techniques and species comparison, Wildlife Research, 26, (6) pp. 789-803. ISSN 1035-3712 (1999) [Refereed Article] http://ecite.utas.edu.au/16873 |
op_doi |
https://doi.org/10.1071/WR98028 |
container_title |
Wildlife Research |
container_volume |
26 |
container_issue |
6 |
container_start_page |
789 |
_version_ |
1766066342015795200 |