Chapter 7a Notes

Chapter 7a Notes - FEEDING BEHAVIOR Feeding Behavior One of...

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FEEDING B EHAVIOR
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Feeding B • One of the most importa behavior – All animals must meet ne eeding success an absol Feeding success an absol fitness because it directly reproductive success ehavior nt aspects of animal eds for energy and nutrition tely key determinant of utely key determinant of affects both survival and
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Optimalit • Based on assumption tha individuals that maximiz unit time herefore individuals sh Therefore, individuals sh patch choices, individua raging- lated choices foraging related choices per unit time any examples • Many examples y Models t selection will favor e net energy intake per uld make foraging ould make foraging l prey choices, and other hat maximize net intake that maximize net intake
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Prey-dropping Be • Carry hard-shelled mollu into the air • Drop prey on hard surfac o they behave optimall • Do they behave optimall – Prey choice? – Height of drop? – Persistence with unbroke havior of Crows scs and other food up e in terms of: y in terms of: n shell?
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ehavior of crows f Behavior of crows f Observ • Crows select only large w rows typically fly up ab Crows typically fly up a whelks rows keep trying until • Crows keep trying until many repetitions require raging on whelks: oraging on whelks: ations whelks ut 5 meters to drop bout 5 meters to drop helk breaks even if whelk breaks, even if d
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This note was uploaded on 04/09/2010 for the course NPB NPB 102 taught by Professor Hahn during the Spring '10 term at UC Davis.

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Chapter 7a Notes - FEEDING BEHAVIOR Feeding Behavior One of...

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