Exam 53: Population Ecology

Which of the following is a likely graphic outcome of a population of deer introduced to an island with an adequate herbivory and without natural predators, parasites, or disease?

A table listing such items as age, observed number of organisms alive each year, and life expectancy is known as a (an)

Which of the following is True?

As N approaches K for a certain population, which of the following is predicted by the logistic equation?

The life history traits favored by selection are most likely to vary with

Pacific salmon or annual plants illustrate which of the following?

Density-dependent factors are related to which of the following?

Imagine that you are managing a large ranch. You know from historical accounts that wild sheep used to live there, but they have been extirpated. You decide to reintroduce them. After doing some research to determine what might be an appropriately sized founding population, you do so. You then watch the population increase for several generations, and graph the number of individuals (vertical axis)against the number of generations (horizontal axis). The graph will appear as

An ecological footprint is a construct that is useful

You are observing a population of lizards when you notice that the number of adults has increased and is higher than previously observed. One explanation for such an observation would include

Please read the paragraph below and review Figure 53.2 to answer the following questions. Researchers in the Netherlands studied the effects of parental caregiving in European kestrels over 5 years. The researchers transferred chicks among nests to produce reduced broods (three or four chicks), normal broods (five or six), and enlarged broods (seven or eight). They then measured the percentage of male and female parent birds that survived the following winter. (Both males and females provide care for chicks.) Brood Size Manipulations in the Kestrel: Effects on Offspring and Parent Survival Figure 53.2 -Which of the following is a conclusion that can be drawn from this graph?

Which of the following is an incorrect statement about the regulation of populations?

Exponential growth of a population is represented by dN/dt =

Use the survivorship curves in Figure 53.1 to answer the following questions. Figure 53.1 -Which curve best describes survivorship that is independent of age?

Field observation suggests that populations of a particular species of herbivorous mammal undergo cyclic fluctuations in density at three- to five-year intervals. Which of the following represent (a)plausible explanation(s)of these cycles?

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

Which of the following graphs refer to this equation? $\frac { d N } { d t }$ =0.5 N

A small population of white-footed mice has the same intrinsic rate of increase (r)as a large population. If everything else is equal,

In the logistic equation dN/dt = rN, $\frac { ( K - N ) } { K }$ , r is a measure of the population's intrinsic rate of increase. It is determined by which of the following?

The most common kind of dispersion in nature is