666
Singh and Singh
provides evidence for sperm precedence of the second male to mate, suggest-
ing the existence of sperm displacement in D. ananassae (Singh and Singh,
2001).
ACKNOWLEDGMENTS
Financial support from the UGC, New Delhi, in the form of a research
project to B.N.S. and a project fellowship to S.R.S. is gratefully acknowledged.
S.R.S. thanks the CSIR, New Delhi, for the award of a Senior Research
Fellowship. The authors thank Prof. M. Matsuda, Kyorin University, Tokyo,
Japan, for kindly providing the mutant stocks of D. ananassae. Thanks are
also due to Professor Anneli Hoikkala, Department of Biology, University
of Oulu, Oulu, Finland, and an anonymous reviewer for their comments on
the manuscript.
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