Trading stages: life expectancies in structured populations.
Interest in stage-and age structured models has recently increased because they can describe quantitative traits such as size that are left out of age-only demography. Available methods for the analysis of effects of vital rates on lifespan in stage-structured models have not been widely applied bec...
প্রধান লেখক: | , , , |
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বিন্যাস: | Journal article |
ভাষা: | English |
প্রকাশিত: |
2012
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_version_ | 1826291895921278976 |
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author | Steiner, UK Tuljapurkar, S Coulson, T Horvitz, C |
author_facet | Steiner, UK Tuljapurkar, S Coulson, T Horvitz, C |
author_sort | Steiner, UK |
collection | OXFORD |
description | Interest in stage-and age structured models has recently increased because they can describe quantitative traits such as size that are left out of age-only demography. Available methods for the analysis of effects of vital rates on lifespan in stage-structured models have not been widely applied because they are hard to use and interpret, and tools for age and stage structured populations are missing. We present easily interpretable expressions for the sensitivities and elasticities of life expectancy to vital rates in age-stage models, and illustrate their application with two biological examples. Much of our approach relies on trading of time and mortality risk in one stage for time and risk in others. Our approach contributes to the new framework of the study of age- and stage-structured biodemography. |
first_indexed | 2024-03-07T03:06:22Z |
format | Journal article |
id | oxford-uuid:b2ac8c99-5053-4d7c-9a4d-d325c614e63c |
institution | University of Oxford |
language | English |
last_indexed | 2024-03-07T03:06:22Z |
publishDate | 2012 |
record_format | dspace |
spelling | oxford-uuid:b2ac8c99-5053-4d7c-9a4d-d325c614e63c2022-03-27T04:13:22ZTrading stages: life expectancies in structured populations.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b2ac8c99-5053-4d7c-9a4d-d325c614e63cEnglishSymplectic Elements at Oxford2012Steiner, UKTuljapurkar, SCoulson, THorvitz, CInterest in stage-and age structured models has recently increased because they can describe quantitative traits such as size that are left out of age-only demography. Available methods for the analysis of effects of vital rates on lifespan in stage-structured models have not been widely applied because they are hard to use and interpret, and tools for age and stage structured populations are missing. We present easily interpretable expressions for the sensitivities and elasticities of life expectancy to vital rates in age-stage models, and illustrate their application with two biological examples. Much of our approach relies on trading of time and mortality risk in one stage for time and risk in others. Our approach contributes to the new framework of the study of age- and stage-structured biodemography. |
spellingShingle | Steiner, UK Tuljapurkar, S Coulson, T Horvitz, C Trading stages: life expectancies in structured populations. |
title | Trading stages: life expectancies in structured populations. |
title_full | Trading stages: life expectancies in structured populations. |
title_fullStr | Trading stages: life expectancies in structured populations. |
title_full_unstemmed | Trading stages: life expectancies in structured populations. |
title_short | Trading stages: life expectancies in structured populations. |
title_sort | trading stages life expectancies in structured populations |
work_keys_str_mv | AT steineruk tradingstageslifeexpectanciesinstructuredpopulations AT tuljapurkars tradingstageslifeexpectanciesinstructuredpopulations AT coulsont tradingstageslifeexpectanciesinstructuredpopulations AT horvitzc tradingstageslifeexpectanciesinstructuredpopulations |