BIO318Y5 Lecture : 2nd half Lecture 3
Document Summary
) phenotype can encompass other bodies: the power of parasites. Found in scientific endeavours in some cases as different as animal behaviour and tests of drug efficacy. Conflict between and within the sexes: sexual dimorphism. Male bowerbirds build a structure (extended phenotype) to attract females. Hangfly/scorpion fly: male genetilia looks like scorpion tail. Male makes balls form end of abdomen which are powerful pheromones to attract the females. Males catch prey then signal for the female who struggles for the prey. Male copulates as they struggle for the prey. Female reject or break up quickly if prey is small. Males break up if have a big prey because can use it to mate with other females! Male break up at 20min mark if they can reach it. Females want to fully feed on prey but the male does not want her to! Has darwinian selection, female choice, and conflict. sexual dimorphism -> male and females look different.
