Exam 8: Demographic Techniques and Population Patterns

Small mammals are more common than large mammals.

The matrix is the most extensive element in a landscape.

The construction of roads through an otherwise intact forest creates

Over the past two hundred years, the clearance of forested areas has resulted in isolated patterns of trees, with a dispersion pattern that is

If x is the extinction rate of populations in patches per unit time and m is the rate of movement between patches, then, according to Richard Levins, the proportion of occupied patches in a metapopulation will stabilize over time to

Small soil dwelling organisms may be sampled using a Berlese funnel.

If you employed a line transect, you would probably be sampling:

In the mark-recapture method of estimating population densities, a loss of tags would result in an underestimate of population size.

D-vac suction samplers are normally used to sample

In Scotland, dunlin densities are less around pools embedded in a low-biomass vegetation matrix of European heather.

In a forest, the dispersion of trees starts off _________________ but ends up _______________ .

Which is not a possible type of metapopulation?

Plant competition from shading of neighbors and root competition results in which dispersion pattern?

If individuals in a population attracted one another, what would be their dispersion pattern?

Joshua Tewksbury's landscape study in South Carolina showed that corridors facilitated the movement of

To estimate plant densities, ecologists usually use