Old male mating advantage results from sexual conflict in a butterfly
Accumulating evidence suggests that sexual conflict is all pervasive, although cooperation is evidently needed in sexually reproducing organisms. While male mating success is typically positively associated with resource-holding potential, old male mating success prevails in some organisms despite old males being in greatly reduced condition. We tested whether this counterintuitive pattern is the outcome of […]
Dense, small and male-biased cages exacerbate male–male competition and reduce female choosiness in Bicyclus anynana
Sexual selection is increasingly recognized to depend upon, and to fluctuate with, major ecological factors in natural environments. The operational sex ratio (OSR) and population density can affect the opportunity for, and strength of, sexual selection but their effects are rarely taken into account in laboratory behavioural studies. In Bicyclus anynana, a model butterfly for […]