Question 2: An African species of nocturnal mountain bat roosts for the day on the undersides of leaves. They hang inverted from the leaf edge, facing outwards. You observe these animals in the field, and notice a few patterns: Pattern 1, they disperse during the night, but collect for the daytime in clusters. Diurnal aggregations of roosting bats vary considerably in size, but can reach sizes of up to forty per cluster. Pattern 2, the African montane forest habitat is highly seasonal, with one part of the year much colder and wetter than the other. You notice that aggregations only happen at some times of the year (the other parts of the year, the animals roost alone). Why might these bats roost in groups? And why do they roost socially only during part of the year? Provide three alternative hypotheses for the evolution of social / aggregative roosting behavior in these bats, and explain how each of these could generate the observed patterns. As before, derive as many predictions from each hypothesis as you can, and use these predictions to explain how you would experimentally/ observationally distinguish among these possible explanations.

Question 2: An African species of nocturnal mountain bat roosts for the day on the undersides of leaves. They hang inverted from the leaf edge, facing outwards. You observe these animals in the field, and notice a few patterns: Pattern 1, they disperse during the night, but collect for the daytime in clusters. Diurnal aggregations of roosting bats vary considerably in size, but can reach sizes of up to forty per cluster. Pattern 2, the African montane forest habitat is highly seasonal, with one part of the year much colder and wetter than the other. You notice that aggregations only happen at some times of the year (the other parts of the year, the animals roost alone). Why might these bats roost in groups? And why do they roost socially only during part of the year? Provide three alternative hypotheses for the evolution of social / aggregative roosting behavior in these bats, and explain how each of these could generate the observed patterns. As before, derive as many predictions from each hypothesis as you can, and use these predictions to explain how you would experimentally/ observationally distinguish among these possible explanations.

Science Of Agriculture Biological Approach

5th Edition

ISBN:9780357229323

Author:Herren

Publisher:Herren

Chapter19: Wildlife Management

Section: Chapter Questions

Problem 1SLA

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