Exam 18: Landscape Ecology

The scale of a disturbance is measured by the mean number of disturbances that occur within a specific time interval.

Edges along landscape patches that are caused by disturbances and are subject to successional changes over time are called ________ edges.

The theory of island biogeography was developed for islands and cannot be applied to habitat patches within a larger landscape.

Habitat corridors are usually of human origin.

A wide transition zone between one patch and another, in which the characteristics of one patch blend gradually with the characteristics of the other, is called a(n)________.

An opening in a community, created by a disturbance that becomes a site of regeneration and growth, is referred to as a(n)________.

Using a graph, illustrate how the number of species on an island can be affected by its size and distance from a mainland. What are the two important demographic variables that vary with the size of an island and its distance from a mainland?

Which of the following does NOT function as a habitat corridor?

The principal force that drives the changes within a shifting mosaic landscape is

Plants adapted to edge environments tend to be

Subpopulations within a metapopulation are isolated from each other with no movement of individuals between subpopulations.

The landscape can be thought of as a shifting mosaic of habitat patches, each in a phase of successional development.

The size and shape of habitat patches are determined more by the activities of animals than by the interaction of geology, topography, and climate.

Using an example, explain how human and natural forces can combine to create habitat patches.

A relatively stable and permanent habitat edge is called a(n)

Which of the following is least considered a major agent of disturbance?

Discuss the major ecological differences between edge species and interior species.

A set of partially isolated populations that is interconnected by the movement of individuals is called a(n)

Explain the potential value of corridors to large-bodied species such as carnivores.

The patchwork of different types of land cover is called a ________.