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THE WING LENGTH OF LENTIC CAPNIIDAE (PLECOPTERA) AND ITS RELATIONSHIP TO ELEVATION AND WISCONSIN GLACIATION

Published online by Cambridge University Press:  31 May 2012

D. B. Donald  and
D. E. Patriquin
D. B. Donald
Affiliation:
Canadian Wildlife Service, 9942 – 108 Street, Edmonton, Alberta T5K 2J5
D. E. Patriquin
Affiliation:
Canadian Wildlife Service, 9942 – 108 Street, Edmonton, Alberta T5K 2J5
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Abstract

Along the Continental Divide in Alberta, British Columbia, and Montana three species of Capniidae were common at some lakes (Capnia confusa Claassen, Isocapnia integra Hanson, and Utacapnia trava (Nebeker and Gaufin)). Females of all three species had substantial reduction in wing length at least at one lake, while most lentic populations had slightly shorter wings than a macropterous river population of the same species. For females of all three species there was a weak positive relationship between functional wing length and lake elevation. Furthermore, there was also a significant negative relationship between functional wing length and the approximate year of Wisconsin deglaciation for C. confusa and U. trava. Suitable data were not available to test the significance of this relationship for I. integra. However, the relationships between wing length and elevation, and between wing length and Wisconsin deglaciation, suggest that wing length of these three capniid species is related to lake age. Present day wing length might be explained by selection for brachypterism over recent millennia.

Résumé

Le long de la ligne de partage des eaux qui passe par l'Alberta, la Colombie-Britannique et le Montana, trois Capniidae (Capnia confusa Claassen, Isocapnia integra Hanson et Utacapnia trava (Nebeker et Gaufin)) sont communs dans certains lacs. Dans au moins un lac, les femelles des trois espèces ont les ailes notablement écourtées tandis que la plupart des populations d'eaux lentiques ont les ailes légèrement plus courtes que celles d'une population macroptère d'eau courante des mêmes espèces. Pour les femelles des trois espèces la longueur de l'aile fonctionnelle et l'altitude du lac sont faiblement corrélées. De plus, entre la longueur de l'aile fonctionnelle de C. confusa et d'U. trava et l'année approximative de la déglaciation du Wisconsin, la corrélation est significativement négative. On ne disposait pas des données appropriées pour tester si cette relation était significative pour I. integra. Cependant, les relations entre la longueur de l'aile et l'altitude et entre la longueur de l'aile et la déglaciation du Wisconsin indiquent que cette variable alaire est reliée, dans le cas des trois espèces, à l'âge des lacs. La longueur actuelle des ailes pourrait être le résultat d'une sélection favorisant la brachyptérisme au cours des derniers millénaires.

Type
Articles
Information
The Canadian Entomologist , Volume 115 , Issue 8 , August 1983 , pp. 921 - 926
Copyright
Copyright © Entomological Society of Canada 1983

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References

Baumann, R. W., Gaufin, A. R., and Surdick, R. F.. 1977. The stoneflies (Plecoptera) of the Rocky Mountains. Mem. Am. ent. Soc. (Philadelphia) 31. 208 pp.Google Scholar
Brinck, P. 1949. Studies on Swedish stoneflies (Plecoptera). Opusc. ent. Suppl. XI. Lund. 250 pp.Google Scholar
Bush, G. L. 1975. Modes of animal speciation. A. Rev. Ecol. Syst. 6: 339–364.CrossRefGoogle Scholar
Donald, D. B. and Anderson, R. S.. 1977. Distribution of the stoneflies (Plecoptera) of the Waterton River drainage, Alberta, Canada. Syesis 10: 111–120.Google Scholar
Donald, D. B. and Anderson, R. S.. 1980. The lentic stoneflies (Plecoptera) from the Continental Divide region of southwestern Canada. Can. Ent. 112: 753–758.CrossRefGoogle Scholar
Donald, D. B. and Mutch, R. A.. 1980. The effect of hydroelectric dams and sewage on the distribution of stoneflies (Plecoptera) along the Bow River. Quaest. ent. 16: 657–669.Google Scholar
Ferguson, A. and Osborn, G.. 1981. Minimum age of deglaciation of upper Elk Valley, British Columbia. Can. J. Earth Sci. 18: 1635–1636.CrossRefGoogle Scholar
Harris, S. A. and Waters, R. R.. 1977. Late Quaternary history of southwest Alberta, a progress report. Bull. Can. Petroleum Geol. 25: 35–62.Google Scholar
Hynes, H. B. N. 1941. The taxonomy and ecology of the nymphs of British Plecoptera with notes on the adults and eggs. Trans. R. ent. Soc. Lond. 91: 459–557.CrossRefGoogle Scholar
Hynes, H. B. N. 1976. Biology of Plecoptera. A. Rev. Ent. 21: 135–153.Google Scholar
Jackson, L. E. Jr. 1980. Glacial history and stratigraphy of the Alberta portion of the Kananaskis Lakes map area. Can. J. Earth Sci. 17: 459–477.CrossRefGoogle Scholar
Khoo, S. G. 1968. Experimental studies on diapause in stoneflies. I. Nymphs of Capnia bifrons (Newman). Proc. R. ent. Soc. Lond. (A) 43: 40–48.Google Scholar
Lillehammer, A. 1976. Norwegian stoneflies. V. Variations in morphological characters compared to differences in ecological factors. Norw. J. Ent. 23: 161–172.Google Scholar
Luckman, B. H. and Osborn, G. D.. 1979. Holocene glacier fluctuations in the middle Canadian Rocky Mountains. Quaternary Res. 11: 52–77.CrossRefGoogle Scholar
Nebeker, A. V. and Gaufin, A. R.. 1965. The Capnia columbiana complex of North America (Capniidae: Plecoptera). Trans. Am. ent. Soc. 91: 467–487.Google Scholar
Nebeker, A. V. and Gaufin, A. R.. 1967. Factors affecting wing length and emergence in the winter stonefly Capnia nana. Ent. News 78: 85–92.Google Scholar
Prest, V. K. 1969. Retreat of Wisconsin and recent ice in North America. Geol. Surv. Can. Map 1257 A.Google Scholar
Snellen, R. K. and Stewart, K. W.. 1979. The life cycle of Perlesta placida (Plecoptera: Perlidae) in an intermittent stream in northern Texas. Ann. ent. Soc. Am. 72: 659–666.CrossRefGoogle Scholar
Sokal, R. R. and Rohlf, F. J.. 1969. Biometry. W.H. Freeman, San Francisco. 776 pp.Google Scholar
Szczytko, S. W. and Stewart, K. W.. 1979. The genus Isoperla (Plecoptera) of western North America; holomorphology and systematics, and a new stonefly genus Cascadoperla. Mem. Am. ent. Soc. (Philadelphia) 32. 120 pp.Google Scholar
Wahrhaftig, C. and Birman, J. H.. 1965. The Quaternary of the Pacific mountain system in California. pp. 299–318 in Wright, H. E. Jr. and Frey, D. G. (Eds.), The Quaternary of the United States—A review volume for the VII Congress of the International Association for Quaternary Research, Princeton, N.J.Princeton University Press. 922 pp.Google Scholar
Wetzel, R. G. 1975. Limnology. W. B. Saunders, Toronto. 743 pp.Google Scholar
Zapekina-Dulkeyt, Yu. I. and Zhil'tsova, L. A.. 1973. A new genus of stoneflies (Plecoptera) from Lake Baikal. Ent. Obozr. 52: 234–238.Google Scholar