Data from: Evaluating the importance of individual heterogeneity in reproduction to Weddell seal population dynamics using integral projection models
Identifying and accounting for unobserved individual heterogeneity in vital rates in demographic models is important for estimating population-level vital rates and identifying diverse life-history strategies, but much less is known about how this individual heterogeneity influences population dynam...
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ftzenodo:oai:zenodo.org:8043812 2024-09-15T18:40:35+00:00 Data from: Evaluating the importance of individual heterogeneity in reproduction to Weddell seal population dynamics using integral projection models Macdonald, Kaitlin Rotella, Jay Paterson, J. Terrill 2023-06-15 https://doi.org/10.5061/dryad.wh70rxwt3 unknown Zenodo https://doi.org/10.5281/zenodo.8018920 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.wh70rxwt3 oai:zenodo.org:8043812 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode age- and state-structured population model integral projection model unobserved individual heterogeneity Population dynamics Weddell seal info:eu-repo/semantics/other 2023 ftzenodo https://doi.org/10.5061/dryad.wh70rxwt310.5281/zenodo.8018920 2024-07-25T16:13:27Z Identifying and accounting for unobserved individual heterogeneity in vital rates in demographic models is important for estimating population-level vital rates and identifying diverse life-history strategies, but much less is known about how this individual heterogeneity influences population dynamics. We aimed to understand how the distribution of individual heterogeneity in reproductive and survival rates influenced population dynamics using vital rates from a Weddell seal population by altering the distribution of individual heterogeneity in reproduction, which also altered the distribution of individual survival rates through the incorporation of our estimate of the correlation between the two rates and assessing resulting changes in population growth. We constructed an integral projection model (IPM) structured by age and reproductive state using estimates of vital rates for a long-lived mammal that has recently been shown to exhibit large individual heterogeneity in reproduction. Using output from the IPM, we evaluated how population dynamics changed with different underlying distributions of unobserved individual heterogeneity in reproduction. Results indicate that the changes to the underlying distribution of individual heterogeneity in reproduction cause very small changes in the population growth rate and other population metrics. The largest difference in the estimated population growth rate resulting from changes to the underlying distribution of individual heterogeneity was less than 1%. Our work highlights the differing importance of individual heterogeneity at the population level compared to the individual level. Although individual heterogeneity in reproduction may result in large differences in the lifetime fitness of individuals, changing the proportion of above- or below-average breeders in the population results in much smaller differences in annual population growth rate. For a long-lived mammal with stable and high adult-survival that gives birth to a single offspring, individual ... Other/Unknown Material Weddell Seal Zenodo |
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age- and state-structured population model integral projection model unobserved individual heterogeneity Population dynamics Weddell seal |
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age- and state-structured population model integral projection model unobserved individual heterogeneity Population dynamics Weddell seal Macdonald, Kaitlin Rotella, Jay Paterson, J. Terrill Data from: Evaluating the importance of individual heterogeneity in reproduction to Weddell seal population dynamics using integral projection models |
topic_facet |
age- and state-structured population model integral projection model unobserved individual heterogeneity Population dynamics Weddell seal |
description |
Identifying and accounting for unobserved individual heterogeneity in vital rates in demographic models is important for estimating population-level vital rates and identifying diverse life-history strategies, but much less is known about how this individual heterogeneity influences population dynamics. We aimed to understand how the distribution of individual heterogeneity in reproductive and survival rates influenced population dynamics using vital rates from a Weddell seal population by altering the distribution of individual heterogeneity in reproduction, which also altered the distribution of individual survival rates through the incorporation of our estimate of the correlation between the two rates and assessing resulting changes in population growth. We constructed an integral projection model (IPM) structured by age and reproductive state using estimates of vital rates for a long-lived mammal that has recently been shown to exhibit large individual heterogeneity in reproduction. Using output from the IPM, we evaluated how population dynamics changed with different underlying distributions of unobserved individual heterogeneity in reproduction. Results indicate that the changes to the underlying distribution of individual heterogeneity in reproduction cause very small changes in the population growth rate and other population metrics. The largest difference in the estimated population growth rate resulting from changes to the underlying distribution of individual heterogeneity was less than 1%. Our work highlights the differing importance of individual heterogeneity at the population level compared to the individual level. Although individual heterogeneity in reproduction may result in large differences in the lifetime fitness of individuals, changing the proportion of above- or below-average breeders in the population results in much smaller differences in annual population growth rate. For a long-lived mammal with stable and high adult-survival that gives birth to a single offspring, individual ... |
format |
Other/Unknown Material |
author |
Macdonald, Kaitlin Rotella, Jay Paterson, J. Terrill |
author_facet |
Macdonald, Kaitlin Rotella, Jay Paterson, J. Terrill |
author_sort |
Macdonald, Kaitlin |
title |
Data from: Evaluating the importance of individual heterogeneity in reproduction to Weddell seal population dynamics using integral projection models |
title_short |
Data from: Evaluating the importance of individual heterogeneity in reproduction to Weddell seal population dynamics using integral projection models |
title_full |
Data from: Evaluating the importance of individual heterogeneity in reproduction to Weddell seal population dynamics using integral projection models |
title_fullStr |
Data from: Evaluating the importance of individual heterogeneity in reproduction to Weddell seal population dynamics using integral projection models |
title_full_unstemmed |
Data from: Evaluating the importance of individual heterogeneity in reproduction to Weddell seal population dynamics using integral projection models |
title_sort |
data from: evaluating the importance of individual heterogeneity in reproduction to weddell seal population dynamics using integral projection models |
publisher |
Zenodo |
publishDate |
2023 |
url |
https://doi.org/10.5061/dryad.wh70rxwt3 |
genre |
Weddell Seal |
genre_facet |
Weddell Seal |
op_relation |
https://doi.org/10.5281/zenodo.8018920 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.wh70rxwt3 oai:zenodo.org:8043812 |
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/10.5061/dryad.wh70rxwt310.5281/zenodo.8018920 |
_version_ |
1810484992012189696 |