BIOL 2060 Lecture Notes - Lecture 13: Wildlife Management, Trophic Cascade
12 Apr 2016
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Document Summary
Predator-prey relaionship: predator removal: using cages to see how the prey behave, predator introducion: how it afects the abundance. Wildlife management: predator to increase desirable wildlife. Removal or control of predators (coming back at intervals and taking away the predators) Mesocosm experiment: large experiment with very life-like condiions. *both are controlled experiments that are trying to be as real as possible but diferent size scales. Take the predator away and see how the prey responds. Someimes two predators will go ater the same prey and therefore have efects on each other. Prey taken usually is surplus (old, injured, diseased) Prey can be migratory and the predators could stay in the same place. How to be eicient in controlling prey relaionships: simple relaionships. Numerical response: predator density increase with reproducion. Funcional: number of prey eaten per predator changes. Aggregaive: predators focus on a certain area. Developmental: as predators mature, they eat more prey.
