Effects of mating on the oviposition behaviour of the parasitic wasp,Apanteles glomeratus L. (Hymenoptera: Braconidae) |
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Authors: | Jun Tagawa Chikashi Yoshida Toshiaki Hashimoto Asao Sudare |
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Affiliation: | (1) Biological Laboratory, Okayama University of Science, 700 Okayama, Japan |
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Abstract: | The oviposition behaviour of mated or virgin females of the parasitic wasp,Apanteles glomeratus L., was investigated. Virgin females laid fewer eggs in a shorter time than did mated females (P<0.01), though the attack ratio and attack time of these 2 female types were the same. Progeny sex ratios of mated females suggested the occurrence of sperm shortage, because old mated females produced clutches of a high male proportion, sometimes consisting of males only. Recopulation of females was also observed, but actual insemination did not occur, and therefore,A. glomeratus females are considered to be fundamentally monogamous. |
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