Table of Contents
Bio 160 - Avery
I. Food Webs - community portraits
C. What is misleading about using similar lines?
2. Interaction Strengths (Pain 1980)
Examples:
Steelhead and roach - Eel River (Power 1990)
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Littorina and algae (Jane Lubchenko 1978)
Littorina and algae (Jane Lubchenko 1978)
Birds on Bilberry bushes in Sweden (Ola Atlegrim 1989)
II. Keystone species
A. Definition:
B. Examples:
B. Examples:
B. Examples:
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B. Examples:
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PPT Slide
PPT Slide
B. Examples continued:
C. The perils of introduced species
b. Local examples
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Author: William E. Avery
Email: averyw@csus.edu
Home Page: http://www.csus.edu/indiv/a/averyw/bio160/lectures3.htm
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