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THE LIFE CYCLES OF SOME STREAM INSECTS (EPHEMEROPTERA, PLECOPTERA) IN ALBERTA1

Published online by Cambridge University Press:  31 May 2012

D. S. Radford  and
R. Hartland-Rowe
D. S. Radford
Affiliation:
Department of Biology, University of Calgary, Calgary, Alberta
R. Hartland-Rowe
Affiliation:
Department of Biology, University of Calgary, Calgary, Alberta
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Abstract

The life histories of Nemoura besametsa, Epeorus deceptivus, Epeorus longimanus, and Ephemerella coloradensis are described as "fast seasonal" types and Arcynopteryx aurea, Nemoura cinctipes, Nemoura columbiana, Nemoura oregonensis, Cinygmula ramaleyi, Ephemerella doddsi, and Rhithrogena doddsi as "slow seasonal" types according to Hynes’ (1961) classification. All of the species are univoltine with the exception of N. cinctipes which may be bivoltine. There seems to be a correlation between life cycles and food availability. A means of ecological separation in the four Nemoura species is elucidated. Stream temperature was found to influence growth rates.

Type
Articles
Information
The Canadian Entomologist , Volume 103 , Issue 4 , April 1971 , pp. 609 - 617
Copyright
Copyright © Entomological Society of Canada 1971

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References

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