Exam 10: Social Behaviors

What prevents nondominant mole rats from reproducing?

What evidence do we have that eusociality appeared to evolve independently, many times?

Which is NOT a characteristic of a eusocial species?

Which of the following is NOT a strategy that leaf-cutter ants use to avoid parasitoid flies specialized to hunt large ants?

One of the benefits of group living is increased vigilance. Vigilance in this sense refers to

Which of the following is NOT an ecosystem process associated with eusocial insects?

Social behavior in animals is

What is a lek? How is it beneficial?

Why is altruistic behavior an evolutionary problem?

A social interaction in which both the donor's fitness and the recipient's fitness are increased is called

Researchers have found that on coral reefs where fishing occurs, the fish have fewer parasites than fish on coral reefs where fishing is excluded. What explains this observation?

The two social interactions called altruism and selfishness both have one individual in the interaction obtaining a positive fitness effect and one individual in the interaction obtaining a negative fitness effect. However, these two interactions are not the same. How are these two interactions different?

Group living _____ the individual's risk of predation and _____ the likelihood the group will be detected by a predator.

The coefficient of relatedness measures

The equation C < B × r describes conditions under which a(n) _____ behavior will ______ in the population.

The term henpecked in chickens refers to chickens pecking at injured spots on other chickens, exacerbating the original injury. How did researchers overcome the problem of henpecked chickens?

You discover a small reef fish species in the Great Barrier Reef off the Australian coast. You study its ecology and discover that many midsized and large predatory fish consume the new species. Further, you find that this species consumes the same prey as many other species of similar-sized fish. However, many of those other small species tend to live in large schools, whereas individuals of this newly discovered species live alone. Propose a general ultimate hypothesis to explain what ecological conditions could cause a small species to live alone rather in a large school.

A hummingbird guarding a hummingbird feeder is an example of

In general terms, what type of habitat would one likely see territoriality and in what type of habitat would one not expect to see territoriality?

In haplodiploid mating systems, males are