Exam 6: Population Biology

An island has formed off the coast of the Pacific Northwest. The Department of Natural Resources (DNR) has determined that there is enough land area for a herd of 100 elk, yet they say the carrying capacity is only 60 elk. This inequality can best be explained by the fact that the

The most common factor that affects birth and death rates within a population independently of density is

Exponential growth in a population

Widespread starvation is an example of _________ population control.

A dieback or population crash, often occurs after a species ________ its environmental carrying capacity.

Many species exhibit both exponential (__________) and logistic (_________) population growth characteristics.

If there is no migration, the size of a population is limited solely by interaction between

The highest number of game or commercial species that can be harvested in a single season without limiting growth for future seasons is the maximal sustainable yield.

How does island biogeography apply to ecosystems other than islands?

In the real world, many factors determine the numbers of organisms in any one population. Yet, a "superfly" with unlimited food and no mortality would show what type of growth?

A collection of separate populations that interact with each other is called a metapopulation.

The ability to produce rapid population overshoots can be a useful strategy for a species that tends to

White-tailed deer populations are at about the same levels as they were a century ago.

In the context of population growth regulation, intrinsic factors are those that

Carrying capacity is the population or biomass

An organism with ___________ "strategies" would be considered to have __________ natality. rev: 06_07_2016_QC_CS-55049

Natality is usually

Density-independent population control factors cause mortality

Density-independent factors tend to be

Conservation biologists refer to the number of individuals needed for long-term survival as