Sea ice and local weather affect reproductive phenology of a polar seabird with breeding consequences
Abstract Breeding at the right time is essential for animals living in seasonal environments to ensure that energy requirements for reproduction, especially the nutritional needs for rearing offspring, coincide with peak food availability. Climate change is likely to cause modifications in the timin...
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Online Access: | http://dx.doi.org/10.1093/ornithapp/duab032 http://academic.oup.com/condor/article-pdf/123/4/duab032/40979229/duab032.pdf |
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croxfordunivpr:10.1093/ornithapp/duab032 2024-09-15T18:34:55+00:00 Sea ice and local weather affect reproductive phenology of a polar seabird with breeding consequences Sauser, Christophe Delord, Karine Barbraud, Christophe French Polar Institute IPEV 2021 http://dx.doi.org/10.1093/ornithapp/duab032 http://academic.oup.com/condor/article-pdf/123/4/duab032/40979229/duab032.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model Ornithological Applications volume 123, issue 4 ISSN 0010-5422 2732-4621 journal-article 2021 croxfordunivpr https://doi.org/10.1093/ornithapp/duab032 2024-09-03T04:13:24Z Abstract Breeding at the right time is essential for animals living in seasonal environments to ensure that energy requirements for reproduction, especially the nutritional needs for rearing offspring, coincide with peak food availability. Climate change is likely to cause modifications in the timing of maximum food availability, and organisms living in polar environments where the breeding period is heavily contracted may be particularly affected. Here we used a 26-year dataset to study the phenological response of a pagophilic species, the Snow Petrel (Pagodroma nivea), to climate change and its demographic impact. First, we investigated the trends and relationships between climate variables and hatching dates measured in three neighboring colonies. In a second step, we examined the impact of the hatching date and environmental covariates on the fledging probability. Our results showed that sea ice, a climate-related variable, showed a positive temporal trend. We found that hatching date was delayed when sea ice concentration was greater and local weather conditions were worse (i.e., increase in the number of windy days or the number of snow days). Hatching date had a negative effect on fledging probability, and fledging probability showed a bell-shaped temporal trend. We suggest that Snow Petrels can delay breeding phenology in response to environmental conditions. However, this plasticity may be limited as fledging success decreased with delayed hatching, potentially making the Snow Petrel vulnerable to a mismatch between resource availability and nutritional needs. Article in Journal/Newspaper Sea ice Snow Petrel Snow Petrels Oxford University Press Ornithological Applications |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract Breeding at the right time is essential for animals living in seasonal environments to ensure that energy requirements for reproduction, especially the nutritional needs for rearing offspring, coincide with peak food availability. Climate change is likely to cause modifications in the timing of maximum food availability, and organisms living in polar environments where the breeding period is heavily contracted may be particularly affected. Here we used a 26-year dataset to study the phenological response of a pagophilic species, the Snow Petrel (Pagodroma nivea), to climate change and its demographic impact. First, we investigated the trends and relationships between climate variables and hatching dates measured in three neighboring colonies. In a second step, we examined the impact of the hatching date and environmental covariates on the fledging probability. Our results showed that sea ice, a climate-related variable, showed a positive temporal trend. We found that hatching date was delayed when sea ice concentration was greater and local weather conditions were worse (i.e., increase in the number of windy days or the number of snow days). Hatching date had a negative effect on fledging probability, and fledging probability showed a bell-shaped temporal trend. We suggest that Snow Petrels can delay breeding phenology in response to environmental conditions. However, this plasticity may be limited as fledging success decreased with delayed hatching, potentially making the Snow Petrel vulnerable to a mismatch between resource availability and nutritional needs. |
author2 |
French Polar Institute IPEV |
format |
Article in Journal/Newspaper |
author |
Sauser, Christophe Delord, Karine Barbraud, Christophe |
spellingShingle |
Sauser, Christophe Delord, Karine Barbraud, Christophe Sea ice and local weather affect reproductive phenology of a polar seabird with breeding consequences |
author_facet |
Sauser, Christophe Delord, Karine Barbraud, Christophe |
author_sort |
Sauser, Christophe |
title |
Sea ice and local weather affect reproductive phenology of a polar seabird with breeding consequences |
title_short |
Sea ice and local weather affect reproductive phenology of a polar seabird with breeding consequences |
title_full |
Sea ice and local weather affect reproductive phenology of a polar seabird with breeding consequences |
title_fullStr |
Sea ice and local weather affect reproductive phenology of a polar seabird with breeding consequences |
title_full_unstemmed |
Sea ice and local weather affect reproductive phenology of a polar seabird with breeding consequences |
title_sort |
sea ice and local weather affect reproductive phenology of a polar seabird with breeding consequences |
publisher |
Oxford University Press (OUP) |
publishDate |
2021 |
url |
http://dx.doi.org/10.1093/ornithapp/duab032 http://academic.oup.com/condor/article-pdf/123/4/duab032/40979229/duab032.pdf |
genre |
Sea ice Snow Petrel Snow Petrels |
genre_facet |
Sea ice Snow Petrel Snow Petrels |
op_source |
Ornithological Applications volume 123, issue 4 ISSN 0010-5422 2732-4621 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1093/ornithapp/duab032 |
container_title |
Ornithological Applications |
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1810477153470382080 |