201. Untangling the Web of Caddisfly Evolution and Distribution
- Author
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J. Bruce Wallace, Theodore J. Georgian, and James H. Thorp
- Subjects
Caddisfly ,biology ,business.industry ,Ecology ,Seston ,Species distribution ,Distribution (economics) ,biology.organism_classification ,Food quality ,business ,Ecology, Evolution, Behavior and Systematics ,Hydropsychidae - Abstract
The relative importance of food quality versus total food quantity in the evolution and distribution of net-spinning caddisflies (Trichoptera: Hydropsychidae) is analyzed. Alstad's (1986) proposal that seston concentration determines species distribution along a continum and his assumption that nets are nonselective for particle size are not supported by available evidence. The importance of catchnet and behavioral selectivity for food quality is emphasized.
- Published
- 1986
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