SI Appendix 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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ftsmithonian:oai:figshare.com:article/16734604 2023-05-15T16:05:11+02:00 SI Appendix from Density-dependent effects on reproductive output in a capital breeding carnivore, the northern elephant seal ( Mirounga angustirostris ) Rachel R. Holser (11520409) Daniel E. Crocker (11555746) Patrick W. Robinson (11555749) Richard Condit (9081859) Daniel P. Costa (11555752) 2021-10-04T18:04:19Z https://doi.org/10.6084/m9.figshare.16734604.v2 unknown https://figshare.com/articles/journal_contribution/SI_Appendix_from_Density-dependent_effects_on_reproductive_output_in_a_capital_breeding_carnivore_the_northern_elephant_seal_i_Mirounga_angustirostris_i_/16734604 doi:10.6084/m9.figshare.16734604.v2 CC BY 4.0 CC-BY Ecology Animal Behaviour animals environment lactation life-history mammals pinnipeds Text Journal contribution 2021 ftsmithonian https://doi.org/10.6084/m9.figshare.16734604.v2 2021-12-20T00:22:51Z 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 weaning mass, and 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 Non-Article Part of Journal/Newspaper Elephant Seal Unknown |
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ftsmithonian |
language |
unknown |
topic |
Ecology Animal Behaviour animals environment lactation life-history mammals pinnipeds |
spellingShingle |
Ecology Animal Behaviour animals environment lactation life-history mammals pinnipeds Rachel R. Holser (11520409) Daniel E. Crocker (11555746) Patrick W. Robinson (11555749) Richard Condit (9081859) Daniel P. Costa (11555752) SI Appendix from Density-dependent effects on reproductive output in a capital breeding carnivore, the northern elephant seal ( Mirounga angustirostris ) |
topic_facet |
Ecology Animal Behaviour animals environment lactation life-history mammals pinnipeds |
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 weaning mass, and 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 Non-Article Part of Journal/Newspaper |
author |
Rachel R. Holser (11520409) Daniel E. Crocker (11555746) Patrick W. Robinson (11555749) Richard Condit (9081859) Daniel P. Costa (11555752) |
author_facet |
Rachel R. Holser (11520409) Daniel E. Crocker (11555746) Patrick W. Robinson (11555749) Richard Condit (9081859) Daniel P. Costa (11555752) |
author_sort |
Rachel R. Holser (11520409) |
title |
SI Appendix from Density-dependent effects on reproductive output in a capital breeding carnivore, the northern elephant seal ( Mirounga angustirostris ) |
title_short |
SI Appendix from Density-dependent effects on reproductive output in a capital breeding carnivore, the northern elephant seal ( Mirounga angustirostris ) |
title_full |
SI Appendix from Density-dependent effects on reproductive output in a capital breeding carnivore, the northern elephant seal ( Mirounga angustirostris ) |
title_fullStr |
SI Appendix from Density-dependent effects on reproductive output in a capital breeding carnivore, the northern elephant seal ( Mirounga angustirostris ) |
title_full_unstemmed |
SI Appendix from Density-dependent effects on reproductive output in a capital breeding carnivore, the northern elephant seal ( Mirounga angustirostris ) |
title_sort |
si appendix from density-dependent effects on reproductive output in a capital breeding carnivore, the northern elephant seal ( mirounga angustirostris ) |
publishDate |
2021 |
url |
https://doi.org/10.6084/m9.figshare.16734604.v2 |
genre |
Elephant Seal |
genre_facet |
Elephant Seal |
op_relation |
https://figshare.com/articles/journal_contribution/SI_Appendix_from_Density-dependent_effects_on_reproductive_output_in_a_capital_breeding_carnivore_the_northern_elephant_seal_i_Mirounga_angustirostris_i_/16734604 doi:10.6084/m9.figshare.16734604.v2 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.16734604.v2 |
_version_ |
1766401003902468096 |