Phenology-based adjustments improve population estimates of Antarctic breeding seabirds: the case of Cape petrels in East Antarctica
To monitor and conserve a species, it is crucial to understand the size and distribution of populations. For seabirds, population surveys are usually conducted at peak breeding attendance. One of the largest populations of Cape petrels in East Antarctica is at the Vestfold Islands, where environment...
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2022
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Online Access: | https://doi.org/10.1098/rsos.211659 https://doaj.org/article/2cbee5a0cae14ceca43a96a715039c1f |
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ftdoajarticles:oai:doaj.org/article:2cbee5a0cae14ceca43a96a715039c1f 2023-05-15T13:40:20+02:00 Phenology-based adjustments improve population estimates of Antarctic breeding seabirds: the case of Cape petrels in East Antarctica Kimberley Kliska Colin Southwell Marcus Salton Richard Williams Louise Emmerson 2022-04-01T00:00:00Z https://doi.org/10.1098/rsos.211659 https://doaj.org/article/2cbee5a0cae14ceca43a96a715039c1f EN eng The Royal Society https://royalsocietypublishing.org/doi/10.1098/rsos.211659 https://doaj.org/toc/2054-5703 doi:10.1098/rsos.211659 2054-5703 https://doaj.org/article/2cbee5a0cae14ceca43a96a715039c1f Royal Society Open Science, Vol 9, Iss 4 (2022) Daption capense remote nest cameras ICESCAPE SPPYCAMS Davis Station Prydz Bay Science Q article 2022 ftdoajarticles https://doi.org/10.1098/rsos.211659 2022-12-31T03:26:57Z To monitor and conserve a species, it is crucial to understand the size and distribution of populations. For seabirds, population surveys are usually conducted at peak breeding attendance. One of the largest populations of Cape petrels in East Antarctica is at the Vestfold Islands, where environmental and logistical constraints often prevent access to breeding sites at the optimal time for population surveys. In this study, we aim to quantify the contemporary and historical breeding population size of these Cape petrels by adjusting nest counts for variation in breeding phenology using photographs from remote cameras. We also compare spatial distribution between 1970s and 2017/2018. Our results show ground counts occurred outside peak breeding attendance, and adjusting for phenology changed the contemporary and historical population estimates. The Cape petrels showed local intra-island or adjacent-island changes in their distribution between the 1970s and 2017/2018 with no evidence of expanding or restricting their distribution or a significant change in their breeding population size. The results emphasize the importance of accounting for phenology in population counts, where populations are inaccessible at an optimal survey time. We discuss the applications of our research methodology for populations breeding in remote areas and as a baseline for assessing population change. Article in Journal/Newspaper Antarc* Antarctic Antarctica Cape Petrels Daption capense East Antarctica Prydz Bay Directory of Open Access Journals: DOAJ Articles Antarctic East Antarctica Prydz Bay Vestfold Davis Station ENVELOPE(77.968,77.968,-68.576,-68.576) Davis-Station ENVELOPE(77.968,77.968,-68.576,-68.576) Royal Society Open Science 9 4 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Daption capense remote nest cameras ICESCAPE SPPYCAMS Davis Station Prydz Bay Science Q |
spellingShingle |
Daption capense remote nest cameras ICESCAPE SPPYCAMS Davis Station Prydz Bay Science Q Kimberley Kliska Colin Southwell Marcus Salton Richard Williams Louise Emmerson Phenology-based adjustments improve population estimates of Antarctic breeding seabirds: the case of Cape petrels in East Antarctica |
topic_facet |
Daption capense remote nest cameras ICESCAPE SPPYCAMS Davis Station Prydz Bay Science Q |
description |
To monitor and conserve a species, it is crucial to understand the size and distribution of populations. For seabirds, population surveys are usually conducted at peak breeding attendance. One of the largest populations of Cape petrels in East Antarctica is at the Vestfold Islands, where environmental and logistical constraints often prevent access to breeding sites at the optimal time for population surveys. In this study, we aim to quantify the contemporary and historical breeding population size of these Cape petrels by adjusting nest counts for variation in breeding phenology using photographs from remote cameras. We also compare spatial distribution between 1970s and 2017/2018. Our results show ground counts occurred outside peak breeding attendance, and adjusting for phenology changed the contemporary and historical population estimates. The Cape petrels showed local intra-island or adjacent-island changes in their distribution between the 1970s and 2017/2018 with no evidence of expanding or restricting their distribution or a significant change in their breeding population size. The results emphasize the importance of accounting for phenology in population counts, where populations are inaccessible at an optimal survey time. We discuss the applications of our research methodology for populations breeding in remote areas and as a baseline for assessing population change. |
format |
Article in Journal/Newspaper |
author |
Kimberley Kliska Colin Southwell Marcus Salton Richard Williams Louise Emmerson |
author_facet |
Kimberley Kliska Colin Southwell Marcus Salton Richard Williams Louise Emmerson |
author_sort |
Kimberley Kliska |
title |
Phenology-based adjustments improve population estimates of Antarctic breeding seabirds: the case of Cape petrels in East Antarctica |
title_short |
Phenology-based adjustments improve population estimates of Antarctic breeding seabirds: the case of Cape petrels in East Antarctica |
title_full |
Phenology-based adjustments improve population estimates of Antarctic breeding seabirds: the case of Cape petrels in East Antarctica |
title_fullStr |
Phenology-based adjustments improve population estimates of Antarctic breeding seabirds: the case of Cape petrels in East Antarctica |
title_full_unstemmed |
Phenology-based adjustments improve population estimates of Antarctic breeding seabirds: the case of Cape petrels in East Antarctica |
title_sort |
phenology-based adjustments improve population estimates of antarctic breeding seabirds: the case of cape petrels in east antarctica |
publisher |
The Royal Society |
publishDate |
2022 |
url |
https://doi.org/10.1098/rsos.211659 https://doaj.org/article/2cbee5a0cae14ceca43a96a715039c1f |
long_lat |
ENVELOPE(77.968,77.968,-68.576,-68.576) ENVELOPE(77.968,77.968,-68.576,-68.576) |
geographic |
Antarctic East Antarctica Prydz Bay Vestfold Davis Station Davis-Station |
geographic_facet |
Antarctic East Antarctica Prydz Bay Vestfold Davis Station Davis-Station |
genre |
Antarc* Antarctic Antarctica Cape Petrels Daption capense East Antarctica Prydz Bay |
genre_facet |
Antarc* Antarctic Antarctica Cape Petrels Daption capense East Antarctica Prydz Bay |
op_source |
Royal Society Open Science, Vol 9, Iss 4 (2022) |
op_relation |
https://royalsocietypublishing.org/doi/10.1098/rsos.211659 https://doaj.org/toc/2054-5703 doi:10.1098/rsos.211659 2054-5703 https://doaj.org/article/2cbee5a0cae14ceca43a96a715039c1f |
op_doi |
https://doi.org/10.1098/rsos.211659 |
container_title |
Royal Society Open Science |
container_volume |
9 |
container_issue |
4 |
_version_ |
1766132511512985600 |