Lecture7OptForagingAndSexandEvolution

Lecture7OptForagingAndSexandEvolution - Ecology and...

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Ecology and Evolution Lecture 7 January 31, 2012
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Outline Review Reproductive Allocation and Survival Trade-off Model Optimal Foraging Sex and Evolution Costs/Benefits of sex(ual reproduction) Sexual function and sex determination Mating systems Sexual selection
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Fecundity and Adult Survival Trade-off Curve
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When S 0 /S N is low, Slope is low, and is tangential to trade-off curve to left When S 0 /S N is high, Slope is high, and is tangential to trade-off curve to right
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Optimal Foraging Animals can forage in a way to maximize their fitness. Minimize risk of death Minimize cost of foraging Where to forage (patch quality)? How far to travel (distance travelled)? How long to spend in patch (search time)?
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Central Place Foraging
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Risk-Sensitive Foraging Patch choice? Feeding duration? Related to predator, patch quality, and need of forager’s state
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Foraging Minnows
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Sex and Evolution
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This note was uploaded on 02/03/2012 for the course BIOL 301 taught by Professor Friedman during the Spring '10 term at South Carolina.

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Lecture7OptForagingAndSexandEvolution - Ecology and...

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