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by: carr34 Notetaker
carr34 Notetaker

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About this Document

These notes cover "Predation"
Principles of Ecology
Robert H. Stavn
Class Notes
Introduction, Ecology
25 ?




Popular in Principles of Ecology

Popular in Biology

This 1 page Class Notes was uploaded by carr34 Notetaker on Sunday October 16, 2016. The Class Notes belongs to BIO 301-01 at University of North Carolina - Greensboro taught by Robert H. Stavn in Fall 2016. Since its upload, it has received 5 views. For similar materials see Principles of Ecology in Biology at University of North Carolina - Greensboro.


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Date Created: 10/16/16
Predation (diversity inducer) Predator ­ other living organisms as energy sources ● Herbivore ­ browsers, seas ● Carnivory ● Parasitoid  Predation ­ not population control Large predator ­ old and sick Wolves ­ high population [ prey extinct then wolves extinct] Lions + wildebeest (GNU) [700] [200,000] ~12,000/yr 8% young born/yr [predator guild] [herbivore guild] Predator removal Pisaster (starfish) rocky coast (west) [done for 6 years] [15 species to start off with] [after a couple of years species reduced to 8] [at the end of 6­8 years; 1 species left] [myths mussel] Seed predation + tree diversity tropical forests Seedling predation ­ daniel janzen Predators ­ tree as a “flag” [primate, pigs, rodents] Top predators ­ jaguar + harpy eagle Cropping principle ­ diversity inducer


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