Hostname: page-component-78c5997874-ndw9j Total loading time: 0 Render date: 2024-11-19T12:33:46.480Z Has data issue: false hasContentIssue false
  • English
  • Français

SEX RATIOS OF SOME HIGH ARCTIC CHIRONOMIDAE (DIPTERA)

Published online by Cambridge University Press:  31 May 2012

D. R. Oliver  and
H. V. Danks
D. R. Oliver
Affiliation:
Entomology Research Institute, Canada Department of Agriculture, Ottawa
H. V. Danks
Affiliation:
Entomology Research Institute, Canada Department of Agriculture, Ottawa
Get access Rights & Permissions [Opens in a new window]

Abstract

The sex ratios at emergence of some Chironomidae from ponds in the Hazen Camp area (81°49′ N., 71°18′ W.) are given from trap records for a number of seasons.

In Tanypodinae and Chironomini there are apparently about equal numbers of the sexes; in Tanytarsini and most Orthocladiinae females consistently outnumber males, often forming 60% or more of the total emergence. These findings are discussed: the presence of facultative parthenogenesis in some species is thought to be likely.

Type
Articles
Information
The Canadian Entomologist , Volume 104 , Issue 9 , September 1972 , pp. 1413 - 1417
Copyright
Copyright © Entomological Society of Canada 1972

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

Acton, A. B. 1957. Chromosome inversions in natural populations of Chironomus dorsalis. J. Genet. 55: 261–275.CrossRefGoogle Scholar
Brundin, L. 1949. Chironomiden und andere Bodentiere der Südschwedischen Urgebirgseen. Rep. Inst. Freshwat. Res. Drottningholm 30: 1–914.Google Scholar
Corbet, P. S. 1965. An insect emergence trap for quantitative studies in shallow ponds. Can. Ent. 97: 845–848.CrossRefGoogle Scholar
Danks, H. V. and Oliver, D. R.. 1972. Seasonal emergence of some high arctic Chironomidae (Diptera). Can. Ent. 104: 661–686.CrossRefGoogle Scholar
Downes, J. A. 1965. Adaptations of insects in the arctic. A. Rev. Ent. 10: 257–274.CrossRefGoogle Scholar
Edward, D. H. D. 1963. The biology of a parthenogenetic species of Lundstroemia (Diptera: Chironomidae) with descriptions of the immature stages. Proc. R. ent. Soc. Lond. (A) 38: 165–170.Google Scholar
Edward, D. H. D. and Colless, D. H.. 1968. Some Australian parthenogenetic Chironomidae. J. Aust. ent. Soc. 7: 158–162.CrossRefGoogle Scholar
Grodhaus, G. 1971. Sporadic parthenogenesis in three species of Chironomus (Diptera). Can. Ent. 103: 338–340.CrossRefGoogle Scholar
Lindeberg, B. 1958. A parthenogenetic race of Monotanytarsus boreoalpinus Th. (Dipt. Chironomidae) from Finland. Suom. hyönt. Aikak. 24: 35–38.Google Scholar
Lindeberg, B. 1970. Tanytarsini (Diptera, Chironomidae) from northern Fennoscandia. Ann. Zool. Fenn. 7: 303–312.Google Scholar
Lindeberg, B. 1971. Parthenogenetic strains and unbalanced sex ratios in Tanytarsini (Diptera, Chironomidae). Ann. Zool. Fenn. 8: 310–317.Google Scholar
Martin, J. 1962. Interrelation of inversion systems in the midge Chironomus intercinctus (Diptera: Nematocera). Aust. J. Biol. Sci. 15: 666–673.CrossRefGoogle Scholar
Oliver, D. R. and Corbet, P. S.. 1966. Aquatic habitats in a high arctic locality: the Hazen Camp study area, Ellesmere Island, N.W.T. Def. Res. Bd Can., D Phys R(G), Hazen 26, 115 pp., 267 figs.Google Scholar
Palmén, E. 1961. Eine parthenogenetische Rasse von Tanytarsus norvegicus (Kieff.) Brund. (Dipt., Chironomidae) aus dem Oligohalinen Brackwasser der Finnischen Meerbusens. Suom. hyönt. Aikak. 27: 45–50.Google Scholar
Scholl, H. 1960. Die Oogenese einiger parthenogenetischer Orthocladiinen (Diptera). Chromosoma 11: 380–401.CrossRefGoogle Scholar
Thienemann, A. 1954. Chironomus. Leben, Verbreitung und Wirtschaftliche Bedeutung der Chironomiden. Binnengewässer 20: 1–834.Google Scholar