Data from: Density-dependent effects on reproductive output in a capital breeding carnivore, the northern elephant seal (Mirounga angustirostris)
All organisms face resource limitations that will ultimately restrict population growth, but the controlling mechanisms vary across ecosystems, taxa, and reproductive strategies. Using four decades of data, we examine how variation in the environment and population density affect reproductive outcom...
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ftzenodo:oai:zenodo.org:5148992 2024-09-15T18:04:37+00:00 Data from: Density-dependent effects on reproductive output in a capital breeding carnivore, the northern elephant seal (Mirounga angustirostris) Costa, Daniel Holser, Rachel Crocker, Daniel Robinson, Patrick McDonald, Gitte Fowler, Melinda Hassrick, Jason Hückstädt, Luis Peterson, Sarah Simmons, Samantha Keates, Theresa 2021-08-24 https://doi.org/10.7291/D1K099 unknown Zenodo https://zenodo.org/communities/dryad https://doi.org/10.7291/D1K099 oai:zenodo.org:5148992 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode Pinnipeds Mammals Lactation life-history animals environment info:eu-repo/semantics/other 2021 ftzenodo https://doi.org/10.7291/D1K099 2024-07-27T04:35:53Z All organisms face resource limitations that will ultimately restrict population growth, but the controlling mechanisms vary across ecosystems, taxa, and reproductive strategies. Using four decades of data, we examine how variation in the environment and population density affect reproductive outcomes in a capital-breeding carnivore, the northern elephant seal ( Mirounga angustirostris ). This species provides a unique opportunity to examine the relative importance of resource acquisition and density-dependence on breeding success. Capital breeders accrue resources over large temporal and spatial scales for use during an abbreviated reproductive period. This strategy may have evolved, in part, to confer resilience to short-term environmental variability. We observed density-dependent effects on both weaning mass and male-biased allocation of resources to offspring. Furthermore, maternal age (experience) was more important than oceanographic conditions or maternal mass in determining offspring weaning mass. Together these findings show that the mechanisms controlling reproductive output are conserved across terrestrial and marine systems and vary with population dynamics, an important consideration when assessing the effect of extrinsic changes, such as climate change, on a population. Other/Unknown Material Elephant Seal Zenodo |
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Pinnipeds Mammals Lactation life-history animals environment |
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Pinnipeds Mammals Lactation life-history animals environment Costa, Daniel Holser, Rachel Crocker, Daniel Robinson, Patrick McDonald, Gitte Fowler, Melinda Hassrick, Jason Hückstädt, Luis Peterson, Sarah Simmons, Samantha Keates, Theresa Data from: Density-dependent effects on reproductive output in a capital breeding carnivore, the northern elephant seal (Mirounga angustirostris) |
topic_facet |
Pinnipeds Mammals Lactation life-history animals environment |
description |
All organisms face resource limitations that will ultimately restrict population growth, but the controlling mechanisms vary across ecosystems, taxa, and reproductive strategies. Using four decades of data, we examine how variation in the environment and population density affect reproductive outcomes in a capital-breeding carnivore, the northern elephant seal ( Mirounga angustirostris ). This species provides a unique opportunity to examine the relative importance of resource acquisition and density-dependence on breeding success. Capital breeders accrue resources over large temporal and spatial scales for use during an abbreviated reproductive period. This strategy may have evolved, in part, to confer resilience to short-term environmental variability. We observed density-dependent effects on both weaning mass and male-biased allocation of resources to offspring. Furthermore, maternal age (experience) was more important than oceanographic conditions or maternal mass in determining offspring weaning mass. Together these findings show that the mechanisms controlling reproductive output are conserved across terrestrial and marine systems and vary with population dynamics, an important consideration when assessing the effect of extrinsic changes, such as climate change, on a population. |
format |
Other/Unknown Material |
author |
Costa, Daniel Holser, Rachel Crocker, Daniel Robinson, Patrick McDonald, Gitte Fowler, Melinda Hassrick, Jason Hückstädt, Luis Peterson, Sarah Simmons, Samantha Keates, Theresa |
author_facet |
Costa, Daniel Holser, Rachel Crocker, Daniel Robinson, Patrick McDonald, Gitte Fowler, Melinda Hassrick, Jason Hückstädt, Luis Peterson, Sarah Simmons, Samantha Keates, Theresa |
author_sort |
Costa, Daniel |
title |
Data from: Density-dependent effects on reproductive output in a capital breeding carnivore, the northern elephant seal (Mirounga angustirostris) |
title_short |
Data from: Density-dependent effects on reproductive output in a capital breeding carnivore, the northern elephant seal (Mirounga angustirostris) |
title_full |
Data from: Density-dependent effects on reproductive output in a capital breeding carnivore, the northern elephant seal (Mirounga angustirostris) |
title_fullStr |
Data from: Density-dependent effects on reproductive output in a capital breeding carnivore, the northern elephant seal (Mirounga angustirostris) |
title_full_unstemmed |
Data from: Density-dependent effects on reproductive output in a capital breeding carnivore, the northern elephant seal (Mirounga angustirostris) |
title_sort |
data from: density-dependent effects on reproductive output in a capital breeding carnivore, the northern elephant seal (mirounga angustirostris) |
publisher |
Zenodo |
publishDate |
2021 |
url |
https://doi.org/10.7291/D1K099 |
genre |
Elephant Seal |
genre_facet |
Elephant Seal |
op_relation |
https://zenodo.org/communities/dryad https://doi.org/10.7291/D1K099 oai:zenodo.org:5148992 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.7291/D1K099 |
_version_ |
1810442239923453952 |