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From individual to population level: Temperature and snow cover modulate fledging success through breeding phenology in greylag geese (Anser anser)

Local weather conditions may be used as environmental cues by animals to optimize their breeding behaviour, and could be affected by climate change. We measured associations between climate, breeding phenology, and reproductive output in greylag geese (Anser anser) across 29 years (1990–2018). The b...

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Autores principales: Frigerio, Didone, Sumasgutner, Petra, Kotrschal, Kurt, Kleindorfer, Sonia, Hemetsberger, Josef
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8352867/
https://www.ncbi.nlm.nih.gov/pubmed/34373490
http://dx.doi.org/10.1038/s41598-021-95011-9
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author Frigerio, Didone
Sumasgutner, Petra
Kotrschal, Kurt
Kleindorfer, Sonia
Hemetsberger, Josef
author_facet Frigerio, Didone
Sumasgutner, Petra
Kotrschal, Kurt
Kleindorfer, Sonia
Hemetsberger, Josef
author_sort Frigerio, Didone
collection PubMed
description Local weather conditions may be used as environmental cues by animals to optimize their breeding behaviour, and could be affected by climate change. We measured associations between climate, breeding phenology, and reproductive output in greylag geese (Anser anser) across 29 years (1990–2018). The birds are individually marked, which allows accurate long-term monitoring of life-history parameters for all pairs within the flock. We had three aims: (1) identify climate patterns at a local scale in Upper Austria, (2) measure the association between climate and greylag goose breeding phenology, and (3) measure the relationship between climate and both clutch size and fledging success. Ambient temperature increased 2 °C across the 29-years study period, and higher winter temperature was associated with earlier onset of egg-laying. Using the hatch-fledge ratio, average annual temperature was the strongest predictor for the proportion of fledged goslings per season. There is evidence for an optimum time window for egg-laying (the earliest and latest eggs laid had the lowest fledging success). These findings broaden our understanding of environmental effects and population-level shifts which could be associated with increased ambient temperature and can thus inform future research about the ecological consequences of climate changes and reproductive output in avian systems.
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spelling pubmed-83528672021-08-10 From individual to population level: Temperature and snow cover modulate fledging success through breeding phenology in greylag geese (Anser anser) Frigerio, Didone Sumasgutner, Petra Kotrschal, Kurt Kleindorfer, Sonia Hemetsberger, Josef Sci Rep Article Local weather conditions may be used as environmental cues by animals to optimize their breeding behaviour, and could be affected by climate change. We measured associations between climate, breeding phenology, and reproductive output in greylag geese (Anser anser) across 29 years (1990–2018). The birds are individually marked, which allows accurate long-term monitoring of life-history parameters for all pairs within the flock. We had three aims: (1) identify climate patterns at a local scale in Upper Austria, (2) measure the association between climate and greylag goose breeding phenology, and (3) measure the relationship between climate and both clutch size and fledging success. Ambient temperature increased 2 °C across the 29-years study period, and higher winter temperature was associated with earlier onset of egg-laying. Using the hatch-fledge ratio, average annual temperature was the strongest predictor for the proportion of fledged goslings per season. There is evidence for an optimum time window for egg-laying (the earliest and latest eggs laid had the lowest fledging success). These findings broaden our understanding of environmental effects and population-level shifts which could be associated with increased ambient temperature and can thus inform future research about the ecological consequences of climate changes and reproductive output in avian systems. Nature Publishing Group UK 2021-08-09 /pmc/articles/PMC8352867/ /pubmed/34373490 http://dx.doi.org/10.1038/s41598-021-95011-9 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Frigerio, Didone
Sumasgutner, Petra
Kotrschal, Kurt
Kleindorfer, Sonia
Hemetsberger, Josef
From individual to population level: Temperature and snow cover modulate fledging success through breeding phenology in greylag geese (Anser anser)
title From individual to population level: Temperature and snow cover modulate fledging success through breeding phenology in greylag geese (Anser anser)
title_full From individual to population level: Temperature and snow cover modulate fledging success through breeding phenology in greylag geese (Anser anser)
title_fullStr From individual to population level: Temperature and snow cover modulate fledging success through breeding phenology in greylag geese (Anser anser)
title_full_unstemmed From individual to population level: Temperature and snow cover modulate fledging success through breeding phenology in greylag geese (Anser anser)
title_short From individual to population level: Temperature and snow cover modulate fledging success through breeding phenology in greylag geese (Anser anser)
title_sort from individual to population level: temperature and snow cover modulate fledging success through breeding phenology in greylag geese (anser anser)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8352867/
https://www.ncbi.nlm.nih.gov/pubmed/34373490
http://dx.doi.org/10.1038/s41598-021-95011-9
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