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colleen colleen
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Posts: 17076
13 years ago
Compare cohort and static life tables. What are the main assumptions of each? In what situations or for what organisms would it be practical to use either?
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13 years ago
A cohort life table is made by identifying a large number of individuals born at about the same time, following them from birth to death, and recording each individual’s age at death. One of the main assumptions of a cohort life table is that your cohort is representative of the population as a whole. A cohort life table is most practically used when it is possible to observe and track a large number of individuals born nearly simultaneously. A static life table is constructed by recording the age at death for a large number of individuals in a population. The individuals in a static life table are not all part of a cohort. A static life table assumes that conditions at the time of sampling are representative of conditions in the population throughout time. Static life tables are most useful with long-lived species, where it would be difficult or impossible to follow a cohort through to death.
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