SEX RATIOS AT EMERGENCE OF TWO SPECIES OF HIGH-ARCTIC AEDES (DIPTERA: CULICIDAE)

• Published in: The Canadian Entomologist
• Main Authors: Danks, H. V., Corbet, Philip S.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Cambridge University Press (CUP) 1973
• Subjects: Arctic; Ellesmere Island
• Online Access: http://dx.doi.org/10.4039/ent105647-4; https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0008347X00021969

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.