SEX RATIOS AT EMERGENCE OF TWO SPECIES OF HIGH-ARCTIC AEDES (DIPTERA: CULICIDAE)
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 pre...
| Published in: | The Canadian Entomologist |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Cambridge University Press (CUP)
1973
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.4039/ent105647-4 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0008347X00021969 |
| Summary: | 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. |
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