Individual quality and age but not environmental or social conditions modulate costs of reproduction in a capital breeder
Costs associated with reproduction are widely known to play a role in the evolution of reproductive tactics with consequences to population and eco-evolutionary dynamics. Evaluating these costs as they pertain to species in the wild remains an important goal of evolutionary ecology. Individual heter...
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Online Access: | http://prodinra.inra.fr/ft/CD3D85EF-2606-4E91-A72E-1E415DAD8E42 http://prodinra.inra.fr/record/435965 https://doi.org/10.1002/ece3.3082 |
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ftinraparis:oai:prodinra.inra.fr:435965 2023-05-15T17:36:18+02:00 Individual quality and age but not environmental or social conditions modulate costs of reproduction in a capital breeder Poissant, Jocelyn McLoughlin, Philip D. Debeffe, Lucie 2017 application/pdf http://prodinra.inra.fr/ft/CD3D85EF-2606-4E91-A72E-1E415DAD8E42 http://prodinra.inra.fr/record/435965 https://doi.org/10.1002/ece3.3082 eng eng https://creativecommons.org/licenses/by-sa/3.0/ CC-BY-SA Ecology and Evolution 15 (7), 5580-5591. (2017) equus ferus caballus;heterogeneity;longevity;mammal;North Atlantic Oscillation;reproductive success;sociality;survival;ungulate ARTICLE 2017 ftinraparis https://doi.org/10.1002/ece3.3082 2018-08-07T23:50:54Z Costs associated with reproduction are widely known to play a role in the evolution of reproductive tactics with consequences to population and eco-evolutionary dynamics. Evaluating these costs as they pertain to species in the wild remains an important goal of evolutionary ecology. Individual heterogeneity, including differences in individual quality (i.e., among-individual differences in traits associated with survival and reproduction) or state, and variation in environmental and social conditions can modulate the costs of reproduction; however, few studies have considered effects of these factors simultaneously. Taking advantage of a detailed, long-term dataset for a population of feral horses (Sable Island, Nova Scotia, Canada), we address the question of how intrinsic (quality, age), environmental (winter severity, location), and social conditions (group size, composition, sex ratio, density) influence the costs of reproduction on subsequent reproduction. Individual quality was measured using a multivariate analysis on a combination of four static and dynamic traits expected to depict heterogeneity in individual performance. Female quality and age interacted with reproductive status of the previous year to determine current reproductive effort, while no effect of social or environmental covariates was found. High-quality females showed higher probabilities of giving birth and weaning their foal regardless of their reproductive status the previous year, while those of lower quality showed lower probabilities of producing foals in successive years. Middle-aged (prime) females had the highest probability of giving birth when they had not reproduced the year before, but no such relationship with age was found among females that had reproduced the previous year, indicating that prime-aged females bear higher costs of reproduction. We show that individual quality and age were key factors modulating the costs of reproduction in a capital breeder but that environmental or social conditions were not, highlighting the importance of considering multiple factors when studying costs of reproduction. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Institut National de la Recherche Agronomique: ProdINRA Canada Ecology and Evolution 7 15 5580 5591 |
institution |
Open Polar |
collection |
Institut National de la Recherche Agronomique: ProdINRA |
op_collection_id |
ftinraparis |
language |
English |
topic |
equus ferus caballus;heterogeneity;longevity;mammal;North Atlantic Oscillation;reproductive success;sociality;survival;ungulate |
spellingShingle |
equus ferus caballus;heterogeneity;longevity;mammal;North Atlantic Oscillation;reproductive success;sociality;survival;ungulate Poissant, Jocelyn McLoughlin, Philip D. Individual quality and age but not environmental or social conditions modulate costs of reproduction in a capital breeder |
topic_facet |
equus ferus caballus;heterogeneity;longevity;mammal;North Atlantic Oscillation;reproductive success;sociality;survival;ungulate |
description |
Costs associated with reproduction are widely known to play a role in the evolution of reproductive tactics with consequences to population and eco-evolutionary dynamics. Evaluating these costs as they pertain to species in the wild remains an important goal of evolutionary ecology. Individual heterogeneity, including differences in individual quality (i.e., among-individual differences in traits associated with survival and reproduction) or state, and variation in environmental and social conditions can modulate the costs of reproduction; however, few studies have considered effects of these factors simultaneously. Taking advantage of a detailed, long-term dataset for a population of feral horses (Sable Island, Nova Scotia, Canada), we address the question of how intrinsic (quality, age), environmental (winter severity, location), and social conditions (group size, composition, sex ratio, density) influence the costs of reproduction on subsequent reproduction. Individual quality was measured using a multivariate analysis on a combination of four static and dynamic traits expected to depict heterogeneity in individual performance. Female quality and age interacted with reproductive status of the previous year to determine current reproductive effort, while no effect of social or environmental covariates was found. High-quality females showed higher probabilities of giving birth and weaning their foal regardless of their reproductive status the previous year, while those of lower quality showed lower probabilities of producing foals in successive years. Middle-aged (prime) females had the highest probability of giving birth when they had not reproduced the year before, but no such relationship with age was found among females that had reproduced the previous year, indicating that prime-aged females bear higher costs of reproduction. We show that individual quality and age were key factors modulating the costs of reproduction in a capital breeder but that environmental or social conditions were not, highlighting the importance of considering multiple factors when studying costs of reproduction. |
author2 |
Debeffe, Lucie |
format |
Article in Journal/Newspaper |
author |
Poissant, Jocelyn McLoughlin, Philip D. |
author_facet |
Poissant, Jocelyn McLoughlin, Philip D. |
author_sort |
Poissant, Jocelyn |
title |
Individual quality and age but not environmental or social conditions modulate costs of reproduction in a capital breeder |
title_short |
Individual quality and age but not environmental or social conditions modulate costs of reproduction in a capital breeder |
title_full |
Individual quality and age but not environmental or social conditions modulate costs of reproduction in a capital breeder |
title_fullStr |
Individual quality and age but not environmental or social conditions modulate costs of reproduction in a capital breeder |
title_full_unstemmed |
Individual quality and age but not environmental or social conditions modulate costs of reproduction in a capital breeder |
title_sort |
individual quality and age but not environmental or social conditions modulate costs of reproduction in a capital breeder |
publishDate |
2017 |
url |
http://prodinra.inra.fr/ft/CD3D85EF-2606-4E91-A72E-1E415DAD8E42 http://prodinra.inra.fr/record/435965 https://doi.org/10.1002/ece3.3082 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Ecology and Evolution 15 (7), 5580-5591. (2017) |
op_rights |
https://creativecommons.org/licenses/by-sa/3.0/ |
op_rightsnorm |
CC-BY-SA |
op_doi |
https://doi.org/10.1002/ece3.3082 |
container_title |
Ecology and Evolution |
container_volume |
7 |
container_issue |
15 |
container_start_page |
5580 |
op_container_end_page |
5591 |
_version_ |
1766135749247238144 |