Lecture 25-cwo-dendep

Lecture 25-cwo-dendep - Try to Re Vone and dela C (2002) ad...

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1. Density independence vs. Density dependence 1. Population Regulation 1. Logistic Growth 1. Delayed Logistic Outline: Try to Read Vonesh and de la Cruz (2002)
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Sea Turtle Conservation: What have we ignored?
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0 Density (N) dN/Ndt Density-independent (exponential) Density-dependent (negative) Per capita rate of increase as function of density: Density-dependent (positive) Implications? Causes?
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1. Density independence: dN/Ndt (or its components) are constant (independent of N) varies with N 1. Density dependence: dN/Ndt (or its components) vary with N 1. Via effects on birth, death, emigration, immigration Definition:
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1. Competition (reduce birth, incr. death…) 1. Allee effect (increase birth) 1. Predator attraction or disease (increase death; decrease birth?) 1. Predator satiation (decrease death, increase birth?) Causes of DD:
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1. Population growth 1. Population regulation: N kept within bounds (tends to increase from low N; decrease at high N) Implications:
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growth:
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This note was uploaded on 07/13/2011 for the course PCB 4034C taught by Professor Osenberg during the Spring '11 term at University of Florida.

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Lecture 25-cwo-dendep - Try to Re Vone and dela C (2002) ad...

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