Title

Substrate associations and longitudinal distributions in species of Ephemerellidae (Insecta: Ephemeroptera) from western Oregon

Document Type

Article

Journal/Book Title/Conference

Freshwater Invertebrate Biology

Volume

3

Publication Date

1-1-1984

First Page

181

Last Page

188

Abstract

Substrate associations and longitudinal distributions are described for 12 species of Ephemerellidae. Habitat specialization seems to have been a major means of adaptive radiation within this family. All species showed restrictive use of available habitats: sand-gravel, cobble, boulder, or moss. Patterns of longitudinal distribution may be, in part, a consequence of the specificity that species show for different substrates.

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