BIO152H5 Lecture Notes - Lecture 18: Lek Mating, Mate Choice, Lection
Document Summary
Male-male competition the puzzle of conspicuous ornaments: non-random mating, darwin"s hypothesis, sexual dimorphism and mating systems, origin of sexual differences, male-male competition. Mating behavior and mate choice play a key role in determining reproductive success: Darwin was first to explore the implications of sexual selection. Depends on the advantage which certain individuals have over other individuals of the same sex and species, in exclusive relation to reproduction. charles darwin. Sexual selection: a form of selection where individuals with certain inherited traits are more successful at attracting mates and breeding than other individuals in a population. Monogamous: one male mates with one female (males and females look alike) Polygamous: one individual of one sex mates with several of the other. Polygyny: single male, many females (males larger and showier than females) Polyandry: single female, many males (females larger and more ornamented than males)
