Sexual dimorphism, or sex-specific trait expression, may evolve when selection favours different optima for the same trait between sexes, i.e., under antagonistic selection. Intra-locus sexual conflic
Environmental heterogeneity shapes the uneven distribution of resources available to foragers, and is ubiquitous in nature. Optimal foraging theory predicts that an animal’s ability to exploit resourc
The treatment of daylight conditions at 2 m visibility was excluded from the analysis as all perch and no roach were eaten, resulting in no variance in data. The effects of light condition and visual
