Flashcards in Workman Reader Ch. 3 Deck (11):
Sexual selection applies to those characteristics that provide
individuals with advantages in gaining access to mates.
"intersexual choice"; when competition to be chosen by the female is the driving factor for mating
asymmetries between the sexes in
the amount of effort that each parent puts into raising the offspring
Male adornments are chosen
by females for their
conspicuous and costly nature
Females choose males which
show conspicuous and costly
adornments as a sign of
Male features signify
genetic superiority i.e.
adornments evolved to demonstrate to females that they are free from parasites
states that each time a
harmful mutation arises in an individual in an asexual population it will be
passed on to all of its offspring
The Tangled Bank Hypothesis proposes that sex evolved in order to prepare offspring for the world around them.
the Red Queen
proposes that organisms must constantly adapt, evolve, and proliferate not merely to gain reproductive advantage, but also simply to survive while pitted against ever-evolving opposing organisms in an ever-changing environment.
a continual evolutionary battle
when same-sex competition is a primary driver for mating