isolation no fish 100 150 125 100 075 el el 075 050

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Unformatted text preview: 2 ­predator behavior •  High feeding rates (streams dry up!) Storfer and Sih, 1998, EvoluOon Migration-Selection Balance! Fish popns Streamside salamander, Ambystoma barbouri 1.  Populations vary by geographic distance 2.  Migration is lower between more distant popns Intermediate behaviors (some with fish, some without) No Fish popns Popns with Fish •  Permanent streams •  Strong an2 ­predator behavior •  Low feeding rates Popns Without Fish •  Ephemeral streams •  Weak an2 ­predator behavior •  High feeding rates (streams dry up!) Storfer and Sih, 1998, EvoluOon Migration-Selection Balance! Fish popns A. STORFER AND A. SIH Streamside 562 No fish 562 1.50 Intermediate behaviors (some with fish, some without) Populations with fish A. ------------Isolation-----------> No fish 100- 1.50 1.25- 1.00- 0.75 el el 0.75 0.50 - No fish Populations with fish ---------Isolation-------> Populations with fish ---------Isolation--...
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This note was uploaded on 01/13/2014 for the course BIONB 2210 taught by Professor Seeley during the Fall '10 term at Cornell University (Engineering School).

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