Hatching phenology is lagging behind an advancing snowmelt pattern in a high-alpine bird

Abstract To track peaks in resource abundance, temperate-zone animals use predictive environmental cues to rear their offspring when conditions are most favourable. However, climate change threatens the reliability of such cues when an animal and its resource respond differently to a changing enviro...

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Autores principales:	Christian Schano, Carole Niffenegger, Tobias Jonas, Fränzi Korner-Nievergelt
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ac2f57fcf72d4d419add83b902943c62
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spelling	oai:doaj.org-article:ac2f57fcf72d4d419add83b902943c622021-11-14T12:17:27ZHatching phenology is lagging behind an advancing snowmelt pattern in a high-alpine bird10.1038/s41598-021-01497-82045-2322https://doaj.org/article/ac2f57fcf72d4d419add83b902943c622021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-01497-8https://doaj.org/toc/2045-2322Abstract To track peaks in resource abundance, temperate-zone animals use predictive environmental cues to rear their offspring when conditions are most favourable. However, climate change threatens the reliability of such cues when an animal and its resource respond differently to a changing environment. This is especially problematic in alpine environments, where climate warming exceeds the Holarctic trend and may thus lead to rapid asynchrony between peaks in resource abundance and periods of increased resource requirements such as reproductive period of high-alpine specialists. We therefore investigated interannual variation and long-term trends in the breeding phenology of a high-alpine specialist, the white-winged snowfinch, Montifringilla nivalis, using a 20-year dataset from Switzerland. We found that two thirds of broods hatched during snowmelt. Hatching dates positively correlated with April and May precipitation, but changes in mean hatching dates did not coincide with earlier snowmelt in recent years. Our results offer a potential explanation for recently observed population declines already recognisable at lower elevations. We discuss non-adaptive phenotypic plasticity as a potential cause for the asynchrony between changes in snowmelt and hatching dates of snowfinches, but the underlying causes are subject to further research.Christian SchanoCarole NiffeneggerTobias JonasFränzi Korner-NievergeltNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Christian Schano Carole Niffenegger Tobias Jonas Fränzi Korner-Nievergelt Hatching phenology is lagging behind an advancing snowmelt pattern in a high-alpine bird
description	Abstract To track peaks in resource abundance, temperate-zone animals use predictive environmental cues to rear their offspring when conditions are most favourable. However, climate change threatens the reliability of such cues when an animal and its resource respond differently to a changing environment. This is especially problematic in alpine environments, where climate warming exceeds the Holarctic trend and may thus lead to rapid asynchrony between peaks in resource abundance and periods of increased resource requirements such as reproductive period of high-alpine specialists. We therefore investigated interannual variation and long-term trends in the breeding phenology of a high-alpine specialist, the white-winged snowfinch, Montifringilla nivalis, using a 20-year dataset from Switzerland. We found that two thirds of broods hatched during snowmelt. Hatching dates positively correlated with April and May precipitation, but changes in mean hatching dates did not coincide with earlier snowmelt in recent years. Our results offer a potential explanation for recently observed population declines already recognisable at lower elevations. We discuss non-adaptive phenotypic plasticity as a potential cause for the asynchrony between changes in snowmelt and hatching dates of snowfinches, but the underlying causes are subject to further research.
format	article
author	Christian Schano Carole Niffenegger Tobias Jonas Fränzi Korner-Nievergelt
author_facet	Christian Schano Carole Niffenegger Tobias Jonas Fränzi Korner-Nievergelt
author_sort	Christian Schano
title	Hatching phenology is lagging behind an advancing snowmelt pattern in a high-alpine bird
title_short	Hatching phenology is lagging behind an advancing snowmelt pattern in a high-alpine bird
title_full	Hatching phenology is lagging behind an advancing snowmelt pattern in a high-alpine bird
title_fullStr	Hatching phenology is lagging behind an advancing snowmelt pattern in a high-alpine bird
title_full_unstemmed	Hatching phenology is lagging behind an advancing snowmelt pattern in a high-alpine bird
title_sort	hatching phenology is lagging behind an advancing snowmelt pattern in a high-alpine bird
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/ac2f57fcf72d4d419add83b902943c62
work_keys_str_mv	AT christianschano hatchingphenologyislaggingbehindanadvancingsnowmeltpatterninahighalpinebird AT caroleniffenegger hatchingphenologyislaggingbehindanadvancingsnowmeltpatterninahighalpinebird AT tobiasjonas hatchingphenologyislaggingbehindanadvancingsnowmeltpatterninahighalpinebird AT franzikornernievergelt hatchingphenologyislaggingbehindanadvancingsnowmeltpatterninahighalpinebird
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Hatching phenology is lagging behind an advancing snowmelt pattern in a high-alpine bird

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