Calcium availability influences litter size and sex ratio in white-footed mice (Peromyscus leucopus).

The production of offspring typically requires investment of resources derived from both the environment and maternal somatic reserves. As such, the availability of either of these types of resources has the potential to limit the degree to which resources are allocated to reproduction. Theory and e...

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Autores principales:	Christina M Schmidt, Wendy R Hood
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/41f74099583c4613b35325531e269021
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spelling	oai:doaj.org-article:41f74099583c4613b35325531e2690212021-11-18T07:10:09ZCalcium availability influences litter size and sex ratio in white-footed mice (Peromyscus leucopus).1932-620310.1371/journal.pone.0041402https://doaj.org/article/41f74099583c4613b35325531e2690212012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22870218/?tool=EBIhttps://doaj.org/toc/1932-6203The production of offspring typically requires investment of resources derived from both the environment and maternal somatic reserves. As such, the availability of either of these types of resources has the potential to limit the degree to which resources are allocated to reproduction. Theory and empirical studies have argued that mothers modify reproductive performance relative to exogenous resource availability and maternal condition by adjusting size, number or sex of offspring produced. These relationships have classically been defined relative to availability of energy sources; however, in vertebrates, calcium also plays a critical role in offspring production, as a considerable amount of calcium is required to support the development of offspring skeleton(s). We tested whether the availability of calcium influences reproductive output by providing female white-footed mice with a low-calcium or standard diet from reproductive maturity to senescence. We then compared maternal skeletal condition and reproductive output, based on offspring mass, offspring number and litter sex ratio, between dietary treatments. Mothers on the low-calcium diet exhibited diminished skeletal condition at senescence and produced smaller and strongly female-biased litters. We show that skeletal condition and calcium intake can influence sex ratio and reproductive output following general theoretical models of resource partitioning during reproduction.Christina M SchmidtWendy R HoodPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 8, p e41402 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Christina M Schmidt Wendy R Hood Calcium availability influences litter size and sex ratio in white-footed mice (Peromyscus leucopus).
description	The production of offspring typically requires investment of resources derived from both the environment and maternal somatic reserves. As such, the availability of either of these types of resources has the potential to limit the degree to which resources are allocated to reproduction. Theory and empirical studies have argued that mothers modify reproductive performance relative to exogenous resource availability and maternal condition by adjusting size, number or sex of offspring produced. These relationships have classically been defined relative to availability of energy sources; however, in vertebrates, calcium also plays a critical role in offspring production, as a considerable amount of calcium is required to support the development of offspring skeleton(s). We tested whether the availability of calcium influences reproductive output by providing female white-footed mice with a low-calcium or standard diet from reproductive maturity to senescence. We then compared maternal skeletal condition and reproductive output, based on offspring mass, offspring number and litter sex ratio, between dietary treatments. Mothers on the low-calcium diet exhibited diminished skeletal condition at senescence and produced smaller and strongly female-biased litters. We show that skeletal condition and calcium intake can influence sex ratio and reproductive output following general theoretical models of resource partitioning during reproduction.
format	article
author	Christina M Schmidt Wendy R Hood
author_facet	Christina M Schmidt Wendy R Hood
author_sort	Christina M Schmidt
title	Calcium availability influences litter size and sex ratio in white-footed mice (Peromyscus leucopus).
title_short	Calcium availability influences litter size and sex ratio in white-footed mice (Peromyscus leucopus).
title_full	Calcium availability influences litter size and sex ratio in white-footed mice (Peromyscus leucopus).
title_fullStr	Calcium availability influences litter size and sex ratio in white-footed mice (Peromyscus leucopus).
title_full_unstemmed	Calcium availability influences litter size and sex ratio in white-footed mice (Peromyscus leucopus).
title_sort	calcium availability influences litter size and sex ratio in white-footed mice (peromyscus leucopus).
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/41f74099583c4613b35325531e269021
work_keys_str_mv	AT christinamschmidt calciumavailabilityinfluenceslittersizeandsexratioinwhitefootedmiceperomyscusleucopus AT wendyrhood calciumavailabilityinfluenceslittersizeandsexratioinwhitefootedmiceperomyscusleucopus
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Calcium availability influences litter size and sex ratio in white-footed mice (Peromyscus leucopus).

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