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

Abstract 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 (1990–201...

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Autores principales:	Didone Frigerio, Petra Sumasgutner, Kurt Kotrschal, Sonia Kleindorfer, Josef Hemetsberger
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d67204c1c3bf4a03be4584c44eef6486
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spelling	oai:doaj.org-article:d67204c1c3bf4a03be4584c44eef64862021-12-02T16:28:50ZFrom individual to population level: Temperature and snow cover modulate fledging success through breeding phenology in greylag geese (Anser anser)10.1038/s41598-021-95011-92045-2322https://doaj.org/article/d67204c1c3bf4a03be4584c44eef64862021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-95011-9https://doaj.org/toc/2045-2322Abstract 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.Didone FrigerioPetra SumasgutnerKurt KotrschalSonia KleindorferJosef HemetsbergerNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-16 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Didone Frigerio Petra Sumasgutner Kurt Kotrschal Sonia Kleindorfer Josef Hemetsberger From individual to population level: Temperature and snow cover modulate fledging success through breeding phenology in greylag geese (Anser anser)
description	Abstract 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.
format	article
author	Didone Frigerio Petra Sumasgutner Kurt Kotrschal Sonia Kleindorfer Josef Hemetsberger
author_facet	Didone Frigerio Petra Sumasgutner Kurt Kotrschal Sonia Kleindorfer Josef Hemetsberger
author_sort	Didone Frigerio
title	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_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_sort	from individual to population level: temperature and snow cover modulate fledging success through breeding phenology in greylag geese (anser anser)
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/d67204c1c3bf4a03be4584c44eef6486
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From individual to population level: Temperature and snow cover modulate fledging success through breeding phenology in greylag geese (Anser anser)

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