Substrate associations and longitudinal distributions in species of Ephemerellidae (Insecta: Ephemeroptera) from western Oregon
Freshwater Invertebrate Biology
Substrate associations, longitudinal distributions, Ephemerellidae, western Oregon
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.
Hawkins, C. P. 1984. Substrate associations and longitudinal distributions in species of Ephemerellidae (Insecta: Ephemeroptera) from western Oregon. Freshwater Invertebrate Biology 3:181-188.