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OVOVIVIPARITY AND NYMPHAL SEASONAL MOVEMENTS OF CALLIBAETIS SPP. (EPHEMEROPTERA: BAETIDAE) IN A POND IN SOUTHWESTERN QUEBEC1

Published online by Cambridge University Press:  31 May 2012

K. Elizabeth Gibbs
K. Elizabeth Gibbs
Affiliation:
Department of Entomology, University of Maine at Orono 04469
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Abstract

Callibaetis ferrugineus (Walsh) and C. fluctuons (Walsh) nymphs moved from the shallow, peripheral area of a pond during the late summer and autumn to the deeper water where they overwintered. In the spring they returned to the peripheral area where they were found throughout the summer. C. ferrugineus and C. fluctuans are ovoviviparous. A relationship between ovoviviparity and seasonal movements of the nymphs is suggested.

Type
Articles
Information
The Canadian Entomologist , Volume 111 , Issue 8 , August 1979 , pp. 927 - 931
Copyright
Copyright © Entomological Society of Canada 1979

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