Relative testis size and mating systems in anurans: large testis in multiple-male mating in foam-nesting frogs

in Animal Biology
Restricted Access
Get Access to Full Text
Rent on DeepDyve

Have an Access Token?



Enter your access token to activate and access content online.

Please login and go to your personal user account to enter your access token.



Help

Have Institutional Access?



Access content through your institution. Any other coaching guidance?



Connect

Abstract

Comparative studies of the relative testes size in animals show that promiscuous species have relatively larger testes than monogamous species. Sperm competition favours the evolution of larger ejaculates in many animals – they give bigger testes. In the view, we presented data on relative testis mass for 17 Chinese species including 3 polyandrous species. We analyzed relative testis mass within the Chinese data set and combining those data with published data sets on Japanese and African frogs. We found that polyandrous foam nesting species have relatively large testes, suggesting that sperm competition was an important factor affecting the evolution of relative testes size. For 4 polyandrous species testes mass is positively correlated with intensity (males/mating) but not with risk (frequency of polyandrous matings) of sperm competition.

Relative testis size and mating systems in anurans: large testis in multiple-male mating in foam-nesting frogs

in Animal Biology

Sections

Index Card

Content Metrics

Content Metrics

All Time Past Year Past 30 Days
Abstract Views 60 60 8
Full Text Views 163 163 0
PDF Downloads 21 21 0
EPUB Downloads 0 0 0