From stage to age in variable environments: life expectancy and survivorship
Stage-based demographic data are now available on many species of plants and some animals, and they often display temporal and spatial variability. We provide exact formulas to compute age-specific life expectancy and survivorship from stage-based data for three models of temporal variability: cycle...
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| Veröffentlicht in: | Ecology (Durham) 2006-06, Vol.87 (6), p.1497-1509 |
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| container_title | Ecology (Durham) |
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| creator | Tuljapurkar, Shripad Horvitz, Carol C. |
| description | Stage-based demographic data are now available on many species of plants and some animals, and they often display temporal and spatial variability. We provide exact formulas to compute age-specific life expectancy and survivorship from stage-based data for three models of temporal variability: cycles, serially independent random variation, and a Markov chain. These models provide a comprehensive description of patterns of temporal variation. Our formulas describe the effects of cohort (birth) environmental condition on mortality at all ages, and of the effects on survivorship of environmental variability experienced over the course of life. This paper complements existing methods for time-invariant stage-based data, and adds to the information on population growth and dynamics available from stochastic demography. |
| doi_str_mv | 10.1890/0012-9658(2006)87[1497:fstaiv]2.0.co;2 |
| format | Article |
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We provide exact formulas to compute age-specific life expectancy and survivorship from stage-based data for three models of temporal variability: cycles, serially independent random variation, and a Markov chain. These models provide a comprehensive description of patterns of temporal variation. Our formulas describe the effects of cohort (birth) environmental condition on mortality at all ages, and of the effects on survivorship of environmental variability experienced over the course of life. 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Psychology ; General aspects ; Life cycles ; Life expectancy ; longevity ; Marantaceae - physiology ; Markov analysis ; Markov Chains ; mathematical models ; Matrices ; Models, Biological ; mortality ; Natural selection ; plant ecology ; Population Dynamics ; Population ecology ; Population growth ; stage structure ; statistical models ; survivorship ; temporal variation ; viability</subject><ispartof>Ecology (Durham), 2006-06, Vol.87 (6), p.1497-1509</ispartof><rights>Copyright 2006 Ecological Society of America</rights><rights>2006 by the Ecological Society of America</rights><rights>2006 INIST-CNRS</rights><rights>Copyright Ecological Society of America Jun 2006</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c6167-cd0660b183d553bf1d49ec6229075ce25fbe73cc9c910da85440a92815bd18283</citedby><cites>FETCH-LOGICAL-c6167-cd0660b183d553bf1d49ec6229075ce25fbe73cc9c910da85440a92815bd18283</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/20069101$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/20069101$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,780,784,803,1417,27924,27925,45574,45575,58017,58250</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=17887162$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16869426$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Tuljapurkar, Shripad</creatorcontrib><creatorcontrib>Horvitz, Carol C.</creatorcontrib><title>From stage to age in variable environments: life expectancy and survivorship</title><title>Ecology (Durham)</title><addtitle>Ecology</addtitle><description>Stage-based demographic data are now available on many species of plants and some animals, and they often display temporal and spatial variability. We provide exact formulas to compute age-specific life expectancy and survivorship from stage-based data for three models of temporal variability: cycles, serially independent random variation, and a Markov chain. These models provide a comprehensive description of patterns of temporal variation. Our formulas describe the effects of cohort (birth) environmental condition on mortality at all ages, and of the effects on survivorship of environmental variability experienced over the course of life. This paper complements existing methods for time-invariant stage-based data, and adds to the information on population growth and dynamics available from stochastic demography.</description><subject>Adaptation, Biological - physiology</subject><subject>Age</subject><subject>age structure</subject><subject>Animal and plant ecology</subject><subject>animal ecology</subject><subject>Animal, plant and microbial ecology</subject><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>Calathea</subject><subject>community ecology</subject><subject>Demography</subject><subject>Ecological life histories</subject><subject>Ecosystem</subject><subject>Eigenvalues</subject><subject>Eigenvectors</subject><subject>Environmental conditions</subject><subject>Flowers & plants</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>General aspects</subject><subject>Life cycles</subject><subject>Life expectancy</subject><subject>longevity</subject><subject>Marantaceae - physiology</subject><subject>Markov analysis</subject><subject>Markov Chains</subject><subject>mathematical models</subject><subject>Matrices</subject><subject>Models, Biological</subject><subject>mortality</subject><subject>Natural selection</subject><subject>plant ecology</subject><subject>Population Dynamics</subject><subject>Population ecology</subject><subject>Population growth</subject><subject>stage structure</subject><subject>statistical models</subject><subject>survivorship</subject><subject>temporal variation</subject><subject>viability</subject><issn>0012-9658</issn><issn>1939-9170</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqdke9r1DAcxoMo7jb9E9QiKPqiZ5I2v-arcex0cDBwmyAiIU3TmaNtzqTtvP_ehB4b-EYwbwJ5PnnyzfMAsERwibiAHyBEOBeU8HcYQvqes--oFOy0CYOy0w-8hEvtPuJHYIFEIXKBGHwMFveXjsBxCFsYFyr5U3CEKKeixHQBNmvvuiy63JpscFnabJ9NyltVtSYz_WS96zvTD-E0a20Tj37vjB5Ur_eZ6ussjH6yk_Php909A08a1Qbz_LCfgJv1-fXqc765_HSxOtvkmiLKcl1DSmGFeFETUlQNqkthNMVYQEa0waSpDCu0FlogWCtOyhIqgTkiVY045sUJeDv77rz7NZowyM4GbdpW9caNQcbfcYyJ-CcYw8Ki5DCCr_8Ct270ffyExDF_xmiJI7SeIe1dCN40cudtp_xeIihTSzIFLlPgMrUkOZOpJbm-uj67-CqxhHJ1KZPRy8NrY9WZ-sHmUEsE3hwAFbRqGx_jtuGBY5wzRJPRl5m7s63Z_-c48nz1Lemc0SRH0xez6TYMzt-bJiT2gaL-atYb5aS69XGwmyscBQhZQThGxR_Mscew</recordid><startdate>200606</startdate><enddate>200606</enddate><creator>Tuljapurkar, Shripad</creator><creator>Horvitz, Carol C.</creator><general>Ecological Society of America</general><scope>FBQ</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QG</scope><scope>7SN</scope><scope>7SS</scope><scope>7ST</scope><scope>7T7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>K9.</scope><scope>P64</scope><scope>RC3</scope><scope>SOI</scope><scope>7U6</scope><scope>7X8</scope></search><sort><creationdate>200606</creationdate><title>From stage to age in variable environments: life expectancy and survivorship</title><author>Tuljapurkar, Shripad ; Horvitz, Carol C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c6167-cd0660b183d553bf1d49ec6229075ce25fbe73cc9c910da85440a92815bd18283</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Adaptation, Biological - physiology</topic><topic>Age</topic><topic>age structure</topic><topic>Animal and plant ecology</topic><topic>animal ecology</topic><topic>Animal, plant and microbial ecology</topic><topic>Animals</topic><topic>Biological and medical sciences</topic><topic>Calathea</topic><topic>community ecology</topic><topic>Demography</topic><topic>Ecological life histories</topic><topic>Ecosystem</topic><topic>Eigenvalues</topic><topic>Eigenvectors</topic><topic>Environmental conditions</topic><topic>Flowers & plants</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>General aspects</topic><topic>Life cycles</topic><topic>Life expectancy</topic><topic>longevity</topic><topic>Marantaceae - physiology</topic><topic>Markov analysis</topic><topic>Markov Chains</topic><topic>mathematical models</topic><topic>Matrices</topic><topic>Models, Biological</topic><topic>mortality</topic><topic>Natural selection</topic><topic>plant ecology</topic><topic>Population Dynamics</topic><topic>Population ecology</topic><topic>Population growth</topic><topic>stage structure</topic><topic>statistical models</topic><topic>survivorship</topic><topic>temporal variation</topic><topic>viability</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tuljapurkar, Shripad</creatorcontrib><creatorcontrib>Horvitz, Carol C.</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Animal Behavior Abstracts</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>Environment Abstracts</collection><collection>Sustainability Science Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Ecology (Durham)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tuljapurkar, Shripad</au><au>Horvitz, Carol C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>From stage to age in variable environments: life expectancy and survivorship</atitle><jtitle>Ecology (Durham)</jtitle><addtitle>Ecology</addtitle><date>2006-06</date><risdate>2006</risdate><volume>87</volume><issue>6</issue><spage>1497</spage><epage>1509</epage><pages>1497-1509</pages><issn>0012-9658</issn><eissn>1939-9170</eissn><coden>ECGYAQ</coden><abstract>Stage-based demographic data are now available on many species of plants and some animals, and they often display temporal and spatial variability. We provide exact formulas to compute age-specific life expectancy and survivorship from stage-based data for three models of temporal variability: cycles, serially independent random variation, and a Markov chain. These models provide a comprehensive description of patterns of temporal variation. Our formulas describe the effects of cohort (birth) environmental condition on mortality at all ages, and of the effects on survivorship of environmental variability experienced over the course of life. This paper complements existing methods for time-invariant stage-based data, and adds to the information on population growth and dynamics available from stochastic demography.</abstract><cop>Washington, DC</cop><pub>Ecological Society of America</pub><pmid>16869426</pmid><doi>10.1890/0012-9658(2006)87[1497:fstaiv]2.0.co;2</doi><tpages>13</tpages></addata></record> |
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| subjects | Adaptation, Biological - physiology Age age structure Animal and plant ecology animal ecology Animal, plant and microbial ecology Animals Biological and medical sciences Calathea community ecology Demography Ecological life histories Ecosystem Eigenvalues Eigenvectors Environmental conditions Flowers & plants Fundamental and applied biological sciences. Psychology General aspects Life cycles Life expectancy longevity Marantaceae - physiology Markov analysis Markov Chains mathematical models Matrices Models, Biological mortality Natural selection plant ecology Population Dynamics Population ecology Population growth stage structure statistical models survivorship temporal variation viability |
| title | From stage to age in variable environments: life expectancy and survivorship |
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