Sexual Selection
Mating Systems
Cooperation
Videos
Potpourri
100
These are two physical traits discussed in class that may indicate "good genes" in male birds such as the barn swallow and cardinal.
What are bright colors and tail symmetry?
100
This animal example mates for life
What is an oldfield mouse?
100
This type of slection acts against cooperators & altruists since individuals take on some cost that others do not.
What is within-group selection?
100
In the Courtship video, these male birds collect different objects to decorate a nest with to attract females.
What are Bower Birds?
100
This is the type of mating system where both polyandry and polygyny is occurring in the same population at the same time.
What is promiscuity?
200
This is the animal example of male-male competition involving a roaring contest, followed by parallel walking, and then fighting if necessary.
What are Red Deer stags?
200
Mating system where a pair will mate during one breeding season, but will switch mates the next breeding season
What is serial monogamy?
200
Two benefits of social grooming
What is removal of ectoparasites and tension reduction
200
In the Unlikely Animal Pair video, this is what the cat was playing with.
What is a crow?
200
This is the type of competition that occurs AFTER a female has mated with several different males.
What is sperm competition?
300
These are the 3 classes of genetic models of female mate choice.
What is direct benefits, good genes, and runaway selection?
300
This is the polyandry example where the female defends a large territory of 4-5 males' territories where she lays her clutches of eggs.
What is a jacana?
300
Occurs when an individual pays an immediate cost or penalty for not acting cooperatively. The benefit of cooperating outweighs that of cheating.
What is byproduct mutualism
300
This was the ultimate demise of the baby oryx being mothered by the lioness.
What is getting killed by another male lion?
300
These are the 4 paths to cooperation
What is kin-selected cooperation, byproduct mutualism, reciprocity, and group selection
400
This is the term used of the direct benefit provided by the male scorpion fly.
What is nuptial gift?
400
This is the polygyny example where the males mature earlier than the females and defend the brood cells from which the females will emerge.
What is the Australian Wasp?
400
These are the benefits that a female receives from nest raiding
What is the nutritional value of the eggs eaten, mating with the male of the nest raided, eliminating potential competitors for your own offspring
400
In the Courtship video, this was the bird that could imitate almost any sound.
What is a lyre bird?
400
This is the type of selection that may produce increasingly exaggerated traits and stronger and stronger female preference for such exaggerated traits
What is runaway selection?
500
This is the specific time that human females preferred the t-shirt odor of more symmetrical men.
What is ovulation?
500
This is the hypothesis where some suggest that selection might sometimes favor sperm that are designed to kill other males’ sperm rather than fertilize eggs.
What is the Kamikaze Sperm Hypothesis?
500
This is the animal example of kin-selected cooperation where the females give alarm calls when a predator is spotted.
What are Belding's Ground Squirrels?
500
This is the term used for when male-male competition occurs in bluegill sunfish with sneaker, satellite and resident males.
What is cuckoldry?
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