Secondary sexual characters in many species function both in male-male competition and
as cues for female choice. Based on a literature compilation of existing knowledge of traits …

While both sperm number and quality are now recognized to be important in determining
the outcome of sperm competition, very few studies have experimentally assessed the …

In this study we compared the insemination efficiency of two alternative mating tactics (courtship
and sneak mating) in the guppy Poecilia reticulata by quantifying the number of sperm …

… andrea pilastro is professor of zoology at the University of Padova. ingo schlupp is associate
professor of zoology at the University of Oklahoma and adjunct professor of integrative …

Postcopulatory sexual selection comprises both sperm competition, where the sperm from
different males compete for fertilization 1 , and cryptic female choice, where females bias …

As inbreeding is costly, it has been suggested that polyandry may evolve as a means to
reduce the negative fitness consequences of mating with genetically related males. While …

Cryptic female choice (CFC) refers to female‐mediated processes occurring during or after
copulation that result in biased sperm use in favor of preferred or compatible males. Despite …

Male mosquitofish allocate a large proportion of their time budget to attempting to inseminate
unreceptive females. Because females invest considerable time and energy in avoiding …

In poeciliid fishes, males can gain copulation either by courting females or through sexual
coercion. In some species these two tactics coexist. However, in about half of the poeciliids, …

We studied the reproductive strategy of a population of fat dormice ( Myoxus glis ) breeding
in nest boxes in a beech forest on the southern Alps, Italy. In eight years of data collection (…