This year’s edition of Advances in the Study of Behavior will be published shortly, to which Paula Stockley and I have contributed an in-depth review of male adaptations to sperm competition in rodents. The review pulls together many of the different research strands we have ourselves been working on over the past several years, covering aspects such as copulatory behaviour, sperm production, sperm allocation, sperm quality, seminal fluid and genitalia, as well as the wider context of sperm competition studies by considering topics such as cryptic female choice, sexual conflict and multivariate selection and trade-offs. We argue that allied to traditional behavioural and morphological studies, recent molecular and genome-based approaches are transforming our understanding of traits that contribute to male competitive fertilization ability, closing the gap between genotypic and phenotypic perspectives on their adaptive evolution.
Hopefully the review will be a useful synthesis of where we’ve got to with respect to understanding sperm competition in this important vertebrate model group, and can serve as a guide to where we need to go next. The advance online version can be found here.
Integrating perspectives on rodent sperm competition. Ramm SA, Stockley P (2016) Advances in the Study of Behavior 48, in press. DOI: 10.1016/bs.asb.2016.02.003
Photo credit: Joad Hughes, via Unsplash.