Female mating preferences, lighting environment, and a test of the sensory bias hypothesis in the bluefin killifish
Sensory drive proposes that environmental conditions affect signalling dynamics and the evolution of signals and receivers. For visual systems, delineating the effects of lighting on mating preferences is difficult because lighting conditions can affect preferences via three mechanisms: (1) genetic differentiation in mating preferences can result from selection under different lighting conditions, (2) development under […]
Digit ratio, polychromatism and associations with endurance and antipredator behaviour in male painted dragon lizards
Variation in sex hormone exposure during early embryonic development contributes to individual differences in behaviour and cognitive abilities later in life. Digit ratio has gained considerable interest as a putative marker for early androgen/oestrogen exposure in behavioural ecology research. Studying digit ratio in nonhuman laboratory as well as wild vertebrate species may be useful to […]