Hostname: page-component-8448b6f56d-c47g7 Total loading time: 0 Render date: 2024-04-25T05:14:32.859Z Has data issue: false hasContentIssue false
  • English
  • Français

CHARACTERIZATION AND PHENOLOGY OF A PREDACEOUS DIVING BEETLE COMMUNITY IN A CENTRAL ALBERTA LAKE

Published online by Cambridge University Press:  31 May 2012

R.B. Aiken
R.B. Aiken
Affiliation:
Department of Biology, Mount Allison University, Sackville, New Brunswick, Canada E0A 3C0
Get access Rights & Permissions [Opens in a new window]

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.

Résumé

La composition reliée aux espèces, la diversité et la phénologie d’une communauté de Coleoptera vivante dans l’eau (Dytiscidae) ont été étudiées pendant une période de 4 ans à George Lake, Alta. Une tendance prononcée de diversité diminuante a eu lieu d’une année à l’autre, à cause de la perte de plusieurs espèces rares. Pour chaque année, plusieurs assemblages saisonniers distincts d’espèces différentes ont eu lieu, à part du groupe résidant en permanence. Peu de différences de la composition en espèces ont eu lieu parmi les micro-habitats du lac. La diminution en diversité a été attribuée à la stabilité de l’habitat et au succès en compétition d’une espèce.

Type
Articles
Information
The Canadian Entomologist , Volume 123 , Issue 2 , April 1991 , pp. 305 - 313
Copyright
Copyright © Entomological Society of Canada 1991

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Aiken, R.B., and Roughley, R.E.. 1985. An efficient trapping and marking method for aquatic beetles. Proc. Phila. Acad. Sci. 137: 5–7.Google Scholar
Aiken, R.B., and Wilkinson, C.W.. 1985. Bionomics of Dytiscus alaskanus J. Balfour-Browne (Coleoptera: Dytiscidae) in a central Alberta lake. Can. J. Zool. 63: 1316–1323.CrossRefGoogle Scholar
Begon, M., Harper, J.L., and Townsend, C.R.. 1987. Ecology. Individuals, Populations and Communities. Sinauer Associates, Cambridge, MA. 876 pp.Google Scholar
Galewski, K. 1971. A study on morphobiotic adaptations of European species of the Dytiscidae. Polski Pismo Ent. 41: 487–702.Google Scholar
Landin, J. 1976. Seasonal patterns in abundance of water-beetles belonging to the Hydrophiloidea (Coleoptera). Freshw. Biol. 6: 89–108.CrossRefGoogle Scholar
Larson, D.J. 1975. The predaceous water beetles (Coleoptera: Dytiscidae) of Alberta: Systematics, natural history and distribution. Quaest. Ent. 11: 245–498.Google Scholar
Larson, D.J. 1985. Structure in temperate predaceous diving beetle communities (Coleoptera: Dytiscidae). Holarctic Ecol. 8: 18–32.Google Scholar
Larson, D.J., and Colbo, M.H.. 1983. The aquatic insects: Biogeographic considerations. pp. 489–515 in Smith, G.R. (Ed.), Biogeography and Ecology of the Island of Newfoundland. Monogr. Biol. 48.Google Scholar
Nilsson, A., and Danell, K.. 1981. The annual and seasonal successions of larvae and imagines of water beetles in a shallow, man-made lake in northern Sweden. Aquat. Ins. 3: 233–243.CrossRefGoogle Scholar
Poole, R.W. 1974. An Introduction to Quantitative Ecology. McGraw-Hill, New York, NY. 532 pp.Google Scholar
Roughley, R.E. 1983. Classification, phylogeny and zoogeography of the world species of Dytiscus Linneaus (Coleoptera: Dytiscidae). Ph.D. thesis, University of Alberta, Edmonton, Alta.Google Scholar
Southwood, T.R.E. 1966. Ecological Methods. Methuen, London. 391 pp.Google Scholar
Zimmerman, J.R. 1960. Seasonal population changes and habitat preferences in the genus Laccophilus (Coleoptera: Dytiscidae). Ecology 41: 141–152.CrossRefGoogle Scholar