Exam 51: Population Ecology

You observe two female fish of the same species breeding. One female lays 100 eggs and the other female lays 1000 eggs. Which one of the following is LEAST likely given the limits of fitness trade-offs?

Which of the following statements regarding the future of populations in developing countries are correct? I. The fecundity is predicted to increase. II. Survivorship will increase. III. Overall population size will increase dramatically. IV. The number of offspring each year is predicted to remain high.

Graph (b) in the accompanying figure shows the normal fluctuations of a population of grouse. Assuming graph (a) in the figure is the result of some experimental treatment in the grouse population, what can be concluded?

Which of the following best defines a cohort?

Looking at the data in the accompanying figure, what can be said about survival and clutch size?

Natural selection involves energetic trade-offs between ________.

What cannot be determined from examining age pyramids of human populations?

The definition of a generation is ________.

Conservationists will take snow geese off the endangered species list when the population hits 10,000. If populations are sustaining growth at r = 0.088 and the population in 2001 is 3000 individuals, in what year will snow geese be taken off the endangered species list?

-In the accompanying figure, which of the lines represents exponential growth?

What is the primary limiting factor that determines why no female animal can produce a very large number of very large eggs?

Imagine that you are managing a large game ranch. You know from historical accounts that a species of deer used to live there, but they have been extirpated. After doing some research to determine what might be an appropriately sized founding population, you reintroduce them. You then watch the population increase for several generations, and graph the number of individuals (vertical axis) against the number of generations (horizontal axis). With no natural predators impacting the population, the graph will likely appear as ________.

Use the survivorship curves in the accompanying figure to answer the following questions. Referring to the figure, which curve best describes survivorship in elephants?

Which of the following groups would be most likely to exhibit uniform dispersion?

A population's carrying capacity ________.

A population is correctly defined as having which of the following characteristics? I. inhabiting the same general area II. belonging to the same species III. possessing a constant and uniform density and dispersion

Which of the following terms defines how the individual organism allocates resources to growth, reproduction, and activities or structures related to survival?