Age-structured population growth rates in constant and variable environments: a near equilibrium approach
General measures summarizing the shapes of mortality and fecundity schedules are proposed. These measures are derived from moments of probability distribution related to mortality and fecundity schedules. Like moments, these measures form infinite sequences, but the first terms of these sequences ar...
| Autores principales: | , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
2004
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/18965 |
| _version_ | 1855537286946488320 |
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| author | Dewi, S. Chesson, P. |
| author_browse | Chesson, P. Dewi, S. |
| author_facet | Dewi, S. Chesson, P. |
| author_sort | Dewi, S. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | General measures summarizing the shapes of mortality and fecundity schedules are proposed. These measures are derived from moments of probability distribution related to mortality and fecundity schedules. Like moments, these measures form infinite sequences, but the first terms of these sequences are of particular value in approximating the long term-faster growth rate of an age structured population that is growing slowly. Higher order terms are needed for approximating faster growing populations. These approximations offer a general nonparametric approach to the study of life-history evolution in both constant and variable environments. These techniques provide simple quantitative representations of the classical findings that, with fixed expected lifetime and net reproductive rate, type I mortality and early peak reproduction increase in the absolute magnitude of the population growth rate, while type III mortality and delayed peak reproduction reduce this absolute magnitude. |
| format | Journal Article |
| id | CGSpace18965 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2004 |
| publishDateRange | 2004 |
| publishDateSort | 2004 |
| record_format | dspace |
| spelling | CGSpace189652025-01-24T14:20:30Z Age-structured population growth rates in constant and variable environments: a near equilibrium approach Dewi, S. Chesson, P. life history age mortality reproduction survival population growth projections measurement General measures summarizing the shapes of mortality and fecundity schedules are proposed. These measures are derived from moments of probability distribution related to mortality and fecundity schedules. Like moments, these measures form infinite sequences, but the first terms of these sequences are of particular value in approximating the long term-faster growth rate of an age structured population that is growing slowly. Higher order terms are needed for approximating faster growing populations. These approximations offer a general nonparametric approach to the study of life-history evolution in both constant and variable environments. These techniques provide simple quantitative representations of the classical findings that, with fixed expected lifetime and net reproductive rate, type I mortality and early peak reproduction increase in the absolute magnitude of the population growth rate, while type III mortality and delayed peak reproduction reduce this absolute magnitude. 2004 2012-06-04T09:09:00Z 2012-06-04T09:09:00Z Journal Article https://hdl.handle.net/10568/18965 en Dewi, S., Chesson, P. 2004. Age-structured population growth rates in constant and variable environments: a near equilibrium approach . Theoretical Population Biology 65 :75-88. |
| spellingShingle | life history age mortality reproduction survival population growth projections measurement Dewi, S. Chesson, P. Age-structured population growth rates in constant and variable environments: a near equilibrium approach |
| title | Age-structured population growth rates in constant and variable environments: a near equilibrium approach |
| title_full | Age-structured population growth rates in constant and variable environments: a near equilibrium approach |
| title_fullStr | Age-structured population growth rates in constant and variable environments: a near equilibrium approach |
| title_full_unstemmed | Age-structured population growth rates in constant and variable environments: a near equilibrium approach |
| title_short | Age-structured population growth rates in constant and variable environments: a near equilibrium approach |
| title_sort | age structured population growth rates in constant and variable environments a near equilibrium approach |
| topic | life history age mortality reproduction survival population growth projections measurement |
| url | https://hdl.handle.net/10568/18965 |
| work_keys_str_mv | AT dewis agestructuredpopulationgrowthratesinconstantandvariableenvironmentsanearequilibriumapproach AT chessonp agestructuredpopulationgrowthratesinconstantandvariableenvironmentsanearequilibriumapproach |