Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
22 Cards in this Set
- Front
- Back
|
Ideal free distribution theory |
The general theory that explains why individuals distribute themselves spatially in a certain way in terms of the fitness gains generated by the decisions of individuals that are free to go wherever they choose |
|
|
Territorial |
Exhibiting a readiness to defend an area against intruders |
|
|
Resource- holding power |
The inherent capacity of an individual to defeat others when competing for useful resources |
|
|
Migration |
The regular movement back and forth between two relatively distant locations by animals that use the resources concentrated in those areas |
|
|
Displays |
A stereotyped action used as a communication signal by individuals, usually used as a term for males courting females |
|
|
Sexual selection |
A form of natural selection that occurs when individuals vary in their ability to compete with others for mates or attract members of the opposite sex |
|
|
Parental investement |
Costly parental activities that increase the likelihood of survival for some existing off-spring but reduces the parent's chances of producing offspring in the future |
|
|
Operational sex ratio |
The ratio of receptive males to receptive females over a given period of time |
|
|
Sex role reversal |
A change in the typical behavior patterns of males and females, like when females compete for mates and males are more choosy (ployandry) |
|
|
Nuptial gift |
A food item transferred by a male to a female just prior to or during copulation; think of catydids or crickets |
|
|
Dominance hierarchy |
A social ranking within a group, in which some individuals give way to others; think of the baboons (mating with females while they are in estrus) |
|
|
Satellite male |
A male that waits near another male to intercept females drawn to the signals produced by the other male or attracted by the resources defended by the other male; think of horseshoe crabs |
|
|
Sperm competition |
The competition between males that determined whose sperm will fertilize a female's eggs when both male's sperm have been accepted by the female; think of the dragonflies with the scrub-brush |
|
|
Extra- pair copulations |
|
|
|
Mate guarding |
|
|
|
Good parent theory |
|
|
|
Cryptic female choice |
|
|
|
Healthy mates theory |
|
|
|
Good genes theory |
|
|
|
Run-away selection |
|
|
|
Chase-away selection |
|
|
|
FINISH |
|
