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AQUATIC INSECTS OF PEATLANDS AND MARSHES IN CANADA: INTRODUCTION

Published online by Cambridge University Press:  31 May 2012

David M. Rosenberg  and
H.V. Danks
David M. Rosenberg
Affiliation:
Fisheries and Oceans Canada, Freshwater Institute, 501 University Crescent, Winnipeg, Manitoba, Canada
H.V. Danks
Affiliation:
Biological Survey of Canada (Terrestrial Arthropods), Zoology Division, National Museum of Natural Sciences, Ottawa, Ontario, Canada K1A 0M8
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Abstract

In general, the aquatic insects of freshwater wetlands have been inadequately studied despite their apparent importance in wetland habitats, especially in energy and nutrient transfer. The Biological Survey of Canada (Terrestrial Arthropods) recognized the deficiencies in knowledge of taxonomy and ecology of insect species in wetland habitats and sponsored a "Conference on the aquatic insects of peatlands and marshes" in St. Andrews, New Brunswick, on 3 October, 1984. The Conference summarized current knowledge on the systematics and ecology of aquatic insects of Canadian peatlands and marshes, the wetland habitats chosen for emphasis, and sought to identify needs for research on the structure and dynamics of aquatic insect faunas in these habitats. The proceedings of the Conference are published here. The first two papers provide background information on the habitats under consideration and the interactions among invertebrates and vertebrates in these habitats. A second group of papers considers features of the Hydracarina, Ephemeroptera, Odonata, Hemiptera, Trichoptera, Coleoptera, and Diptera in peatlands and marshes. A final paper summarizes data on the occurrence of aquatic insects in bogs, fens, and marshes, addresses broader questions related to the nature of the insect fauna, and identifies needs for further research. By making accessible systematic and ecological information on aquatic insects of Canadian peatlands and marshes, the proceedings should support and encourage further work in these habitats.

Résumé

En général, les insectes aquatiques des milieux terrestres humides d'eau douce n'ont pas été étudiés adéquatement en dépit de leur importance évidente parmi les habitats humides, en particulier en ce qui concerne les transferts d'énergie et de nutriments. L'Inventaire Biologique du Canada (Arthropodes Terrestres), reconnaissant la pauvreté des connaissances taxonomiques et écologiques sur les insectes aquatiques des milieux humides, a parrainé une "Conférence sur les insectes aquatiques des tourbières et des marécages" qui a eu lieu à St. Andrews, Nouveau-Brunswick, le 3 octobre 1984. La Conférence a permis de faire le point des connaissances actuelles sur la systématique et l'écologie des insectes des tourbières et des marécages du Canada, les habitats humides qui ont été retenus, et a cherché à identifier les besoins de recherche sur la structure et la dynamique des entomofaunes aquatiques de ces habitats. Les comptes-rendus de cette Conférence sont rapportés ici. Les deux premiers articles font état des connaissances de base sur les habitats considérés et sur les interactions entre invertébrés et vertébrés qu'on y retrouve. Un deuxième groupe d'articles concerne les caractéristiques des Hydracarina, Ephemeroptera, Odonata, Hemiptera, Trichoptera, Coleoptera et Diptera habitants des tourbières et des marécages. Un dernier article résume les données relatant la présence d'insectes aquatiques dans les tourbières ombrotrophes, les tourbières minérotrophes et les marécages, aborde des questions d'ordre plus général sur la nature de leurs entomofaunes, et identifie des besoins de recherche. En rendant accessible l'information de nature systématique et écologique concernant les tourbières et les marécages, ces comptes-rendus permettront d'appuyer et d'encourager la mise en oeuvre d'autres études portant sur ces habitats.

Type
Research Article
Information
The Memoirs of the Entomological Society of Canada , Volume 119 , Supplement S140 , 1987 , pp. 1 - 4
Copyright
Copyright © Entomological Society of Canada 1987

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