Nuptial feeding encompasses any form of nutrient transfer from the male to the female
during or directly after courtship and/or copulation. In insects, nuptial gifts may take the form …

One hundred years after Darwin considered how sexual selection shapes the behavioral
and morphological characteristics of males for acquiring mates, Parker realized that sexual …

Intralocus sexual conflict (IaSC) occurs when selection at a given locus favors different
alleles in males and females, placing a fundamental constraint on adaptation. However, the …

Males of the bruchid beetle Callosobruchus maculatus have spines on their intromittent
organs that puncture the female reproductive tract during mating. Females kick their mates …

This handbook provides basic information about raising, handling, and maintaining cultures
of bean beetles, Callosobruchus maculatus. Our intended audience is the faculty and staff …

The central question addressed by most studies of sperm competition is:'what determines
which male's sperm are used at fertilization?'Empirical and theoretical studies that address …

The evolution of male traits that inflict direct harm on females during mating interactions can
result in a so-called tragedy of the commons, where selfish male strategies depress …

Abstract Male Callosobruchus maculatus F.(Coleoptera: Bruchidae) inseminate more sperm
than females can effectively store in their spermathecae. This study examines the adaptive …

Control over copulation duration is a potentially important generator of sexual conflict that
has received little empirical attention. The copulatory behavior of the bruchid beetle …

Male seminal fluid proteins are known to affect female reproductive behavior and physiology
by reducing mating receptivity and by increasing egg production rates. Such substances are …