Ecology 4

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Author:
clydethedog
ID:
20493
Filename:
Ecology 4
Updated:
2010-05-23 23:29:28
Tags:
UK BIO Introductory Ecology
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Description:
4
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  1. Williams' trade off
    • between present reproduction and future
    • BOTH survival to breed again
    • reproduction next time if you survived
  2. Alberto Sabat
    • did a Lack like experiment manipulating egg number
    • males defend eggs against predators
    • found that if he increased the egg number, the dad's survival to next year decreases and vice-versa
  3. Sigal Balshine
    • studied mouth brooding cichlids in Israel
    • 2 treatments, mom keeps eggs vs eggs taken away
    • found that the ones that had eggs removed had a higher egg # than the ones that kept their eggs
    • mom's survival did not appear to be affected, but they were in a hatchery where survival is maximized

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