Poor prey quality is compensated by higher provisioning effort in passerine birds

Abstract In altricial avian species, nutrition can significantly impact nestling fitness by increasing their survival and recruitment chances after fledging. Therefore, the effort invested by parents towards provisioning nestlings is crucial and represents a critical link between habitat resources a...

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Autores principales:	Sarah Senécal, Julie-Camille Riva, Ryan S. O’Connor, Fanny Hallot, Christian Nozais, François Vézina
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/863f06196f794c9bb9f4a2f43f80e852
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spelling	oai:doaj.org-article:863f06196f794c9bb9f4a2f43f80e8522021-12-02T15:00:55ZPoor prey quality is compensated by higher provisioning effort in passerine birds10.1038/s41598-021-90658-w2045-2322https://doaj.org/article/863f06196f794c9bb9f4a2f43f80e8522021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-90658-whttps://doaj.org/toc/2045-2322Abstract In altricial avian species, nutrition can significantly impact nestling fitness by increasing their survival and recruitment chances after fledging. Therefore, the effort invested by parents towards provisioning nestlings is crucial and represents a critical link between habitat resources and reproductive success. Recent studies suggest that the provisioning rate has little or no effect on the nestling growth rate. However, these studies do not consider prey quality, which may force breeding pairs to adjust provisioning rates to account for variation in prey nutritional value. In this 8-year study using black-capped (Poecile atricapillus) and boreal (Poecile hudsonicus) chickadees, we hypothesized that provisioning rates would negatively correlate with prey quality (i.e., energy content) across years if parents adjust their effort to maintain nestling growth rates. The mean daily growth rate was consistent across years in both species. However, prey energy content differed among years, and our results showed that parents brought more food to the nest and fed at a higher rate in years of low prey quality. This compensatory effect likely explains the lack of relationship between provisioning rate and growth rate reported in this and other studies. Therefore, our data support the hypothesis that parents increase provisioning efforts to compensate for poor prey quality and maintain offspring growth rates.Sarah SenécalJulie-Camille RivaRyan S. O’ConnorFanny HallotChristian NozaisFrançois VézinaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Sarah Senécal Julie-Camille Riva Ryan S. O’Connor Fanny Hallot Christian Nozais François Vézina Poor prey quality is compensated by higher provisioning effort in passerine birds
description	Abstract In altricial avian species, nutrition can significantly impact nestling fitness by increasing their survival and recruitment chances after fledging. Therefore, the effort invested by parents towards provisioning nestlings is crucial and represents a critical link between habitat resources and reproductive success. Recent studies suggest that the provisioning rate has little or no effect on the nestling growth rate. However, these studies do not consider prey quality, which may force breeding pairs to adjust provisioning rates to account for variation in prey nutritional value. In this 8-year study using black-capped (Poecile atricapillus) and boreal (Poecile hudsonicus) chickadees, we hypothesized that provisioning rates would negatively correlate with prey quality (i.e., energy content) across years if parents adjust their effort to maintain nestling growth rates. The mean daily growth rate was consistent across years in both species. However, prey energy content differed among years, and our results showed that parents brought more food to the nest and fed at a higher rate in years of low prey quality. This compensatory effect likely explains the lack of relationship between provisioning rate and growth rate reported in this and other studies. Therefore, our data support the hypothesis that parents increase provisioning efforts to compensate for poor prey quality and maintain offspring growth rates.
format	article
author	Sarah Senécal Julie-Camille Riva Ryan S. O’Connor Fanny Hallot Christian Nozais François Vézina
author_facet	Sarah Senécal Julie-Camille Riva Ryan S. O’Connor Fanny Hallot Christian Nozais François Vézina
author_sort	Sarah Senécal
title	Poor prey quality is compensated by higher provisioning effort in passerine birds
title_short	Poor prey quality is compensated by higher provisioning effort in passerine birds
title_full	Poor prey quality is compensated by higher provisioning effort in passerine birds
title_fullStr	Poor prey quality is compensated by higher provisioning effort in passerine birds
title_full_unstemmed	Poor prey quality is compensated by higher provisioning effort in passerine birds
title_sort	poor prey quality is compensated by higher provisioning effort in passerine birds
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/863f06196f794c9bb9f4a2f43f80e852
work_keys_str_mv	AT sarahsenecal poorpreyqualityiscompensatedbyhigherprovisioningeffortinpasserinebirds AT juliecamilleriva poorpreyqualityiscompensatedbyhigherprovisioningeffortinpasserinebirds AT ryansoconnor poorpreyqualityiscompensatedbyhigherprovisioningeffortinpasserinebirds AT fannyhallot poorpreyqualityiscompensatedbyhigherprovisioningeffortinpasserinebirds AT christiannozais poorpreyqualityiscompensatedbyhigherprovisioningeffortinpasserinebirds AT francoisvezina poorpreyqualityiscompensatedbyhigherprovisioningeffortinpasserinebirds
_version_	1718389149601366016

Poor prey quality is compensated by higher provisioning effort in passerine birds

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