Question 1

Which of the following best describes the primary focus of landscape ecology?

Accepted Answer

The study of spatial variation in landscape structure and its effects on ecological processes.

Question 2

A landscape is defined as:

Accepted Answer

A heterogeneous area composed of several ecosystems.

Question 3

Which of the following is NOT considered a landscape element?

Accepted Answer

A uniform stretch of grassland with no variation.

Question 4

How does landscape structure influence the dispersal of small mammals according to Diffendorfer et al.?

Accepted Answer

Animals move farther in more fragmented landscapes to obtain resources.

Question 5

Hanski et al. found that butterfly population density in habitat patches is affected by:

Accepted Answer

Both the size and isolation of the habitat patch.

Question 6

Which equation best represents the relationship between patch area ($$A) $$and population size ($$N) $$within a patch, as observed in butterfly studies?

Accepted Answer

$$N = k 	imes A$$

Question 7

What is the effect of connecting habitat fragments with corridors of similar habitat?

Accepted Answer

It mitigates the effects of habitat fragmentation and increases movement of organisms.

Question 8

Webster’s research on lake position in a landscape showed that lakes at lower positions receive:

Accepted Answer

More groundwater and higher concentrations of dissolved ions.

Question 9

Which of the following geological processes is a primary source of landscape structure?

Accepted Answer

Volcanism

Question 10

How do beavers act as landscape engineers?

Accepted Answer

By increasing the extent of wetlands and changing hydrologic regimes.

Question 11

Which of the following is an example of a disturbance that can change landscape structure?

Accepted Answer

Fire

Question 12

If a landscape mosaic is a function of geological events and climate variation, which equation best represents this relationship?

Accepted Answer

$$M = f(G, C)$$

Question 13

Which of the following is a plausible consequence of increased patch isolation in a landscape?

Accepted Answer

Lower population density and increased risk of local extinction.

Question 14

Which of the following best describes a metapopulation?

Accepted Answer

A group of spatially isolated populations with significant exchange of individuals.

Question 15

Which of the following is NOT a general effect of beaver activity on landscape structure?

Accepted Answer

Decreasing the extent of wetlands.

Question 16

Which factor is most likely to increase the movement of butterflies between habitat patches?

Accepted Answer

Connecting patches with habitat corridors.

Question 17

Which of the following best explains why animals stay longer in more isolated habitat patches?

Accepted Answer

Animals must travel farther to find new suitable habitats, so they remain longer in isolated patches.

Question 18

Which of the following is a direct effect of beaver dam construction on the landscape?

Accepted Answer

Increased sediment trapping and wetland formation.

Question 19

Which of the following is a correct statement about the relationship between patch area and population density in butterfly populations?

Accepted Answer

Population density decreases as patch area increases.

Question 20

Which of the following is a real-world example of an organism influencing landscape structure?

Accepted Answer

Elephants acting as keystone species by modifying vegetation.

ch 21: Landscape Ecology: Structure, Processes, and Change

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