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Published bySofia Gunn Modified over 11 years ago
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Ecology 2 The end is near
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What role does a female play in the population????
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A life table is an age-specific summary of the survival pattern of a population.
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The best way to construct a life table is to follow the fate of a cohort, a group of individuals of the same age, from birth until all are dead.
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As an example of a Type I curve, humans in developed countries experience high survival rates until old age.
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At the opposite extreme are Type III curves for organisms such as oysters, which experience very high mortality as larvae but decreased mortality later in life.
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Type II survivorship curves are intermediate between the other two types and result when a constant proportion of individuals die at each age
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