poeLifetable_spr09[1]

poeLifetable_spr09[1] - Organize all relevant information...

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Unformatted text preview: Organize all relevant information about birth and death rates as a function of age; Provide the data for answering questions, like: What is the average number of offspring that an organism produces in its life time? What is the average generation time of a population? What is the growth rate of the entire population? Life Tables: What is Life Table Analysis used for? Population management: 1. If the goal is to destroy a population, which life history stage should we target to get the most bang for the buck? 2. If the goal is to conserve a population at risk, which life history stage should get the most protection? 3. If the goal is sustainable harvest: which life history stages should be exempted from being killed? Life Tables represent life histories Life history: the timing of life cycle events, particularly as relating to growth, fertility and death. Age of Frst reproduction: Mouse: 5 weeks Rabbit: 5 months Elephant: 5 years Arabidopsis: 5 weeks Scarlet Oak: 20 years Bamboo: 100 years Maximal life span: Shrews: 1.5 years Human: 122 years Giant Tortoise: 177 years Redwood tree: 2200 years Litter/brood size: Albatross: 1 egg songbirds: 2-5 eggs Pheasants: 8-18 eggs Human: 1 gophers:...
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poeLifetable_spr09[1] - Organize all relevant information...

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