Agelenids of the World

Systematics and Taxonomy of Agelenidae, a Worldwide distributed Spider Family

Size assortative mating and reproductive success of the funnel-web spider, Agelena limbata (Araneae; Agelenidae)

Publication Type:Journal Article
Year of Publication:1999
Authors:T. Masumoto
Journal:Journal of Insect Behavior
Date Published:1999
ISBN Number:0892-7553
Keywords:Agelena limbata (Araneae)., Agelena limbata [Size / / Male, Asia, Biometrics, campus, Eurasia, Fukuoka city, Kyushu University, Land zones, Male mating & reproductive success related to size]., mating & reproductive success, Palaearctic region, related to size] [Japan / / Kyushu, relationships] [Mating / / Male size & reproductive success, relationships] [Reproductive productivity / / Male reproductive success, Reproduction, Reproductive behaviour

Field observations and laboratory experiments were conducted to assess the relation between male size and reproductive success in the funnel-web spider, Agelena limbata Thorell (Agelenidae), in 2 years. In this species, the body size of males is similar to that of females. In the field, size assortative mating occurred in both years. In 1 year, partial correlation coefficient analysis indicates that male cephalothorax width is a beter predictor of the copulated female cephalothorax width than of the date of pairing. In laboratory experiments, females tended to reject courting males that were smaller in relative body size, and males that were larger in relative body size had greater copulation success. Consequently female rejection of smaller courting males has some contribution to size assortative mating. Since larger females deposited more numerous eggs in the field, larger males are expected to have a higher reproductive success.

URL:<Go to ISI>://ZOOREC:ZOOR13600017230
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