Four unreported emperor penguin colonies discovered by satellite
Predictions of the future emperor penguins population, linked to anthropogenic climate change, are stark. Current models suggest that if CO 2 emissions continue to rise at present rates, almost all colonies will be quasi-extinct by the end of the century (Jenouvrier et al. 2021). The monitoring of p...
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crcambridgeupr:10.1017/s0954102023000329 2024-06-23T07:48:03+00:00 Four unreported emperor penguin colonies discovered by satellite Fretwell, Peter 2024 http://dx.doi.org/10.1017/s0954102023000329 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102023000329 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by/4.0/ Antarctic Science page 1-3 ISSN 0954-1020 1365-2079 journal-article 2024 crcambridgeupr https://doi.org/10.1017/s0954102023000329 2024-06-05T04:03:16Z Predictions of the future emperor penguins population, linked to anthropogenic climate change, are stark. Current models suggest that if CO 2 emissions continue to rise at present rates, almost all colonies will be quasi-extinct by the end of the century (Jenouvrier et al. 2021). The monitoring of populations is crucial to tracking these changes and, if possible, implementing conservation measures. Recent work using satellite imagery to discover, track and monitor emperor penguin populations has proved to be a key technology in understanding the locations, numbers and trends of the species (Barbraud & Weimerskirch 2001, Trathan et al. 2020, Jenouvrier et al. 2021). It also enables the discovery of unrecorded breeding sites (Fretwell et al. 2009), although there are inherent difficulties in determining what constitutes a new or undiscovered breeding colony (see Supplemental Material S1). In 2019, eight previously unreported emperor penguin breeding sites were found using the European Space Agency's Sentinel-2 satellite, a medium-resolution satellite with a spatial resolution of 10 m per pixel (Fretwell & Trathan 2021), bringing the number of known extant breeding locations to 61. Here, I report on the discovery of a further four breeding sites using Sentinel-2 and Maxar WorldView-2 imagery. Article in Journal/Newspaper Antarctic Science Emperor penguins Cambridge University Press Antarctic Science 1 3 |
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Cambridge University Press |
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English |
description |
Predictions of the future emperor penguins population, linked to anthropogenic climate change, are stark. Current models suggest that if CO 2 emissions continue to rise at present rates, almost all colonies will be quasi-extinct by the end of the century (Jenouvrier et al. 2021). The monitoring of populations is crucial to tracking these changes and, if possible, implementing conservation measures. Recent work using satellite imagery to discover, track and monitor emperor penguin populations has proved to be a key technology in understanding the locations, numbers and trends of the species (Barbraud & Weimerskirch 2001, Trathan et al. 2020, Jenouvrier et al. 2021). It also enables the discovery of unrecorded breeding sites (Fretwell et al. 2009), although there are inherent difficulties in determining what constitutes a new or undiscovered breeding colony (see Supplemental Material S1). In 2019, eight previously unreported emperor penguin breeding sites were found using the European Space Agency's Sentinel-2 satellite, a medium-resolution satellite with a spatial resolution of 10 m per pixel (Fretwell & Trathan 2021), bringing the number of known extant breeding locations to 61. Here, I report on the discovery of a further four breeding sites using Sentinel-2 and Maxar WorldView-2 imagery. |
format |
Article in Journal/Newspaper |
author |
Fretwell, Peter |
spellingShingle |
Fretwell, Peter Four unreported emperor penguin colonies discovered by satellite |
author_facet |
Fretwell, Peter |
author_sort |
Fretwell, Peter |
title |
Four unreported emperor penguin colonies discovered by satellite |
title_short |
Four unreported emperor penguin colonies discovered by satellite |
title_full |
Four unreported emperor penguin colonies discovered by satellite |
title_fullStr |
Four unreported emperor penguin colonies discovered by satellite |
title_full_unstemmed |
Four unreported emperor penguin colonies discovered by satellite |
title_sort |
four unreported emperor penguin colonies discovered by satellite |
publisher |
Cambridge University Press (CUP) |
publishDate |
2024 |
url |
http://dx.doi.org/10.1017/s0954102023000329 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102023000329 |
genre |
Antarctic Science Emperor penguins |
genre_facet |
Antarctic Science Emperor penguins |
op_source |
Antarctic Science page 1-3 ISSN 0954-1020 1365-2079 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/s0954102023000329 |
container_title |
Antarctic Science |
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1 |
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3 |
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1802638449551867904 |