In the Northern Hemisphere, many species of birds fly south during the autumn months. Propose a proximate and an ultimate cause for this behavior.
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In the Northern Hemisphere, many species of birds fly south during the autumn months. Propose a proximate and an ultimate cause for this behavior.
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- A large group of American Robins will travel around during Winter in search ofEgrets are often seen along with grazing cattle.How do you refer to this interaction?Give reason.Most remote oceanic islands have at least one unique species of flightless bird that shows little or no fear of humans or other large predators. Account for this observation.
- Cuckoo bird lays eggs in the nest of crowWhich type of interaction is shown in this relation?Please create a very detailed experiment regarding the following ultimate hypotheiss about meerkats behavior but withan assumption that there are unlimited resources.Egg-retrieval behavior of greylag geese is an excellent example of a highly predictable behavior. Interpret this behavior within the framework of classical ethology, using these terms: releaser, sign stimulus, and stereotyped behavior. Interpret the territorial defense behavior of male three-spined sticklebacks in the same context.
- Explain the difference IN PRIMATES between contest competition and scramble competition, referencing how the distribution of different types of foods interacts with group size to affect levels of these kinds of competition in primate groups. References are the books "Primate Behavioral Ecology" by Karen Strier and "Planet Without Apes" by Craig StanfordWhich type of relationship is formed when an Alcon blue caterpillar lives in a Myrmica ant nest?Describe the effects of the disappearance of beaver from an ecosystem on the wolf population.
- Eastern tent caterpillars (Malacosoma americanum) live in large groups in silk nests resembling tents, which they build in trees. They are among the first insects to be active in early spring, when daily temperature fluctuates from freezing to very hot. Over the course of a day, they display striking differences in behavior: Early in the morning, they rest in a tightly packed group on the tent’s east-facing surface. In midafternoon, they are on its undersurface, each caterpillar hanging by a few of its legs. Propose a hypothesis to explain this behavior. How could you test it?Describe the behavior of ants when the trail was blocked. How did they establish or reestablish the trail? Explain the mechanism of trail establishment or reestablishment.Describe how prey species in areas with high predation would differ from prey species from areas with low predation. Make sure you give specific responses of prey to predation.