Capital and income breeding traits differentiate trophic match–mismatch dynamics in large herbivores
For some species, climate change has altered environmental conditions away from those in which life-history strategies evolved. In such cases, if adaptation does not keep pace with these changes, existing life-history strategies may become maladaptive and lead to population declines. We use life-his...
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crroyalsociety:10.1098/rstb.2012.0484 2024-09-15T18:09:51+00:00 Capital and income breeding traits differentiate trophic match–mismatch dynamics in large herbivores Kerby, Jeffrey Post, Eric 2013 http://dx.doi.org/10.1098/rstb.2012.0484 https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.2012.0484 https://royalsocietypublishing.org/doi/full-xml/10.1098/rstb.2012.0484 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Philosophical Transactions of the Royal Society B: Biological Sciences volume 368, issue 1624, page 20120484 ISSN 0962-8436 1471-2970 journal-article 2013 crroyalsociety https://doi.org/10.1098/rstb.2012.0484 2024-09-02T04:21:09Z For some species, climate change has altered environmental conditions away from those in which life-history strategies evolved. In such cases, if adaptation does not keep pace with these changes, existing life-history strategies may become maladaptive and lead to population declines. We use life-history theory, with a specific emphasis on breeding strategies, in the context of the trophic match–mismatch framework to form generalizable hypotheses about population-level consumer responses to climate-driven perturbations in resource availability. We first characterize the income and breeding traits of sympatric caribou and muskoxen populations in western Greenland, and then test trait-based hypotheses about the expected reproductive performance of each population during a period of high resource variability at that site. The immediate reproductive performance of income breeding caribou decreased with trophic mismatch. In contrast, capital breeding muskoxen were relatively unaffected by current breeding season resource variability, but their reproductive performance was sensitive to resource conditions from previous years. These responses matched our expectations about how capital and income breeding strategies should influence population susceptibility to phenological mismatch. We argue for a taxon-independent assessment of trophic mismatch vulnerability based on a life-history strategy perspective in the context of prevailing environmental conditions. Article in Journal/Newspaper Greenland The Royal Society Philosophical Transactions of the Royal Society B: Biological Sciences 368 1624 20120484 |
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Open Polar |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
For some species, climate change has altered environmental conditions away from those in which life-history strategies evolved. In such cases, if adaptation does not keep pace with these changes, existing life-history strategies may become maladaptive and lead to population declines. We use life-history theory, with a specific emphasis on breeding strategies, in the context of the trophic match–mismatch framework to form generalizable hypotheses about population-level consumer responses to climate-driven perturbations in resource availability. We first characterize the income and breeding traits of sympatric caribou and muskoxen populations in western Greenland, and then test trait-based hypotheses about the expected reproductive performance of each population during a period of high resource variability at that site. The immediate reproductive performance of income breeding caribou decreased with trophic mismatch. In contrast, capital breeding muskoxen were relatively unaffected by current breeding season resource variability, but their reproductive performance was sensitive to resource conditions from previous years. These responses matched our expectations about how capital and income breeding strategies should influence population susceptibility to phenological mismatch. We argue for a taxon-independent assessment of trophic mismatch vulnerability based on a life-history strategy perspective in the context of prevailing environmental conditions. |
format |
Article in Journal/Newspaper |
author |
Kerby, Jeffrey Post, Eric |
spellingShingle |
Kerby, Jeffrey Post, Eric Capital and income breeding traits differentiate trophic match–mismatch dynamics in large herbivores |
author_facet |
Kerby, Jeffrey Post, Eric |
author_sort |
Kerby, Jeffrey |
title |
Capital and income breeding traits differentiate trophic match–mismatch dynamics in large herbivores |
title_short |
Capital and income breeding traits differentiate trophic match–mismatch dynamics in large herbivores |
title_full |
Capital and income breeding traits differentiate trophic match–mismatch dynamics in large herbivores |
title_fullStr |
Capital and income breeding traits differentiate trophic match–mismatch dynamics in large herbivores |
title_full_unstemmed |
Capital and income breeding traits differentiate trophic match–mismatch dynamics in large herbivores |
title_sort |
capital and income breeding traits differentiate trophic match–mismatch dynamics in large herbivores |
publisher |
The Royal Society |
publishDate |
2013 |
url |
http://dx.doi.org/10.1098/rstb.2012.0484 https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.2012.0484 https://royalsocietypublishing.org/doi/full-xml/10.1098/rstb.2012.0484 |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
Philosophical Transactions of the Royal Society B: Biological Sciences volume 368, issue 1624, page 20120484 ISSN 0962-8436 1471-2970 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rstb.2012.0484 |
container_title |
Philosophical Transactions of the Royal Society B: Biological Sciences |
container_volume |
368 |
container_issue |
1624 |
container_start_page |
20120484 |
_version_ |
1810447440257482752 |