CHARACTERIZATION AND PHENOLOGY OF A PREDACEOUS DIVING BEETLE COMMUNITY IN A CENTRAL ALBERTA LAKE
- 1 April 1991
- journal article
- Published by Cambridge University Press (CUP) in The Canadian Entomologist
- Vol. 123 (2) , 305-313
- https://doi.org/10.4039/ent123305-2
Abstract
The species composition, diversity, and phenology of a community of water beetles (Dytiscidae) were studied over a 4-year period at George Lake, Alta. There was a pronounced trend of decreasing diversity between years due to the loss of several rarer species. In any year, there were distinct seasonal assemblages of different species, as well as a group of permanent residents. There were few differences in species composition between various microhabitats in the lake. The decline in diversity is attributed to habitat stability and competitive success of one species.Keywords
This publication has 5 references indexed in Scilit:
- Bionomics of Dytiscus alaskanus J. Balfour-Browne (Coleoptera: Dytiscidae) in a central Alberta lakeCanadian Journal of Zoology, 1985
- Structure in temperate predaceous diving beetle communities (Coleoptera: Dytiscidae)Ecography, 1985
- The annual and seasonal successions of larvae and imagines of water beetles in a shallow, man‐made lake in Northern SwedenAquatic Insects, 1981
- Seasonal patterns in abundance of water‐beetles belonging to the Hydrophiloidea (Coleoptera)Freshwater Biology, 1976
- Seasonal Population Changes and Habitat Preferences in the Genus Laccophilus (Coleoptera: Dytiscidae)Ecology, 1960