Sexual Selection: Part II

Vocabulary flashcards covering key concepts related to sexual selection and evolutionary theories discussed in the lecture notes.

Sexual Selection

A mode of natural selection in which certain traits increase in frequency because of mate preferences.

Intrasexual Selection

A type of sexual selection where members of one sex compete for access to the opposite sex.

Non-Random Mating

A mating system where individuals preferentially choose mates based on certain traits, leading to more significant mating success.

Assortative Mating

A type of non-random mating where individuals prefer partners with similar phenotypes or genotypes.

Disassortative Mating

A type of non-random mating where individuals prefer partners with different phenotypes or genotypes.

Honest Signal

A trait that reliably indicates an individual's genetic quality or fitness.

Lek

A temporary gathering of males to compete for female attention and mating opportunities.

Hotspot Theory

The theory that females travel to certain areas (hotspots) where males gather, increasing the chances of encountering multiple males.

Hotshot Theory

The idea that females prefer to mate with a few dominant males (alpha males) who attract the majority of females.