SEX RATIOS AT EMERGENCE OF TWO SPECIES OF HIGH-ARCTIC AEDES (DIPTERA: CULICIDAE)
- 1 April 1973
- journal article
- Published by Cambridge University Press (CUP) in The Canadian Entomologist
- Vol. 105 (4) , 647-651
- https://doi.org/10.4039/ent105647-4
Abstract
Sex ratios at emergence of Aedes impiger and A. nigripes in the Hazen Camp area (81°49′ N., 71°18′ W.), northern Ellesmere Island, N.W.T., are given from trap records, mainly for 1963.There is a marked predominance of females in trap catches from temporary ponds, and an overall slight predominance of females (but with marked pond-to-pond variation) in permanent ponds. The nature of these inter-pond differences favours the inference that, before emergence, males normally survive less well than females, especially under the conditions existing in temporary ponds as they dry up.Keywords
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