Year: 1998
Type: article
Abstract: In this paper, I consider the criteria necessary to demonstrate the postcopulatory ability of females to favor the sperm of one conspecific male over another, that is, sperm choice. In practice it is difficult to distinguish between sperm competition and sperm choice, and sperm choice can be demonstrated only if the effects of sperm competition can be controlled. Few studies have used experimental protocols that do this, so evidence for sperm choice is limited. Moreover, in those studies in which sperm choice occurs, it does so to avoid incompatible genetic combinations and is therefore unlikely to result in directional sexual selection.
Source: Evolution
Author: T. R. Birkhead
Institution: University of Sheffield
Language: English
Domain: Life Sciences
Open Access status: bronze
OpenAlex ID: W2317799719