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Cumulative reproductive costs on current reproduction in a wild polytocous mammal

The cumulative cost of reproduction hypothesis predicts that reproductive costs accumulate over an individual's reproductive life span. While short‐term costs have been extensively explored, the prevalence of cumulative long‐term costs and the circumstances under which such costs occur alongsid...

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Autores principales: Kroeger, Svenja B., Blumstein, Daniel T., Armitage, Kenneth B., Reid, Jane M., Martin, Julien G. A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6303762/
https://www.ncbi.nlm.nih.gov/pubmed/30598755
http://dx.doi.org/10.1002/ece3.4597
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author Kroeger, Svenja B.
Blumstein, Daniel T.
Armitage, Kenneth B.
Reid, Jane M.
Martin, Julien G. A.
author_facet Kroeger, Svenja B.
Blumstein, Daniel T.
Armitage, Kenneth B.
Reid, Jane M.
Martin, Julien G. A.
author_sort Kroeger, Svenja B.
collection PubMed
description The cumulative cost of reproduction hypothesis predicts that reproductive costs accumulate over an individual's reproductive life span. While short‐term costs have been extensively explored, the prevalence of cumulative long‐term costs and the circumstances under which such costs occur alongside or instead of short‐term costs, are far from clear. Indeed, few studies have simultaneously tested for both short‐term and cumulative long‐term reproductive costs in natural populations. Even in mammals, comparatively little is known about cumulative effects of previous reproduction, especially in species with high variation in offspring numbers, where costs could vary among successful reproductive events. Here, we quantify effects of previous short‐term and cumulative long‐term reproduction on current reproduction probability and litter size in wild female yellow‐bellied marmots (Marmota flaviventer) and test how these effects vary with age and between two contrasting environments. We provide evidence for cumulative long‐term effects: females that had both reproduced frequently and weaned large litters on average in previous years had decreased current reproduction probability. We found no evidence for short‐term reproductive costs between reproductive bouts. However, females weaned larger litters when they had weaned larger litters on average in previous years and had lower current reproduction probability when their previous reproductive success was low. Together these results suggest that, alongside persistent among‐individual variation, long‐term reproductive history affects current reproductive success.
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spelling pubmed-63037622018-12-31 Cumulative reproductive costs on current reproduction in a wild polytocous mammal Kroeger, Svenja B. Blumstein, Daniel T. Armitage, Kenneth B. Reid, Jane M. Martin, Julien G. A. Ecol Evol Original Research The cumulative cost of reproduction hypothesis predicts that reproductive costs accumulate over an individual's reproductive life span. While short‐term costs have been extensively explored, the prevalence of cumulative long‐term costs and the circumstances under which such costs occur alongside or instead of short‐term costs, are far from clear. Indeed, few studies have simultaneously tested for both short‐term and cumulative long‐term reproductive costs in natural populations. Even in mammals, comparatively little is known about cumulative effects of previous reproduction, especially in species with high variation in offspring numbers, where costs could vary among successful reproductive events. Here, we quantify effects of previous short‐term and cumulative long‐term reproduction on current reproduction probability and litter size in wild female yellow‐bellied marmots (Marmota flaviventer) and test how these effects vary with age and between two contrasting environments. We provide evidence for cumulative long‐term effects: females that had both reproduced frequently and weaned large litters on average in previous years had decreased current reproduction probability. We found no evidence for short‐term reproductive costs between reproductive bouts. However, females weaned larger litters when they had weaned larger litters on average in previous years and had lower current reproduction probability when their previous reproductive success was low. Together these results suggest that, alongside persistent among‐individual variation, long‐term reproductive history affects current reproductive success. John Wiley and Sons Inc. 2018-11-14 /pmc/articles/PMC6303762/ /pubmed/30598755 http://dx.doi.org/10.1002/ece3.4597 Text en © 2018 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Research
Kroeger, Svenja B.
Blumstein, Daniel T.
Armitage, Kenneth B.
Reid, Jane M.
Martin, Julien G. A.
Cumulative reproductive costs on current reproduction in a wild polytocous mammal
title Cumulative reproductive costs on current reproduction in a wild polytocous mammal
title_full Cumulative reproductive costs on current reproduction in a wild polytocous mammal
title_fullStr Cumulative reproductive costs on current reproduction in a wild polytocous mammal
title_full_unstemmed Cumulative reproductive costs on current reproduction in a wild polytocous mammal
title_short Cumulative reproductive costs on current reproduction in a wild polytocous mammal
title_sort cumulative reproductive costs on current reproduction in a wild polytocous mammal
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6303762/
https://www.ncbi.nlm.nih.gov/pubmed/30598755
http://dx.doi.org/10.1002/ece3.4597
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