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Eventually _____ split into North America, Europe, and Asia.


A) Gondwana
B) Pangaea
C) Laurasia
D) Neotropica

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In the log-log form of the species-area curve, the slope of the relationship, z, is typically


A) 0.5 to 1.
B) 0.2 to 0.35.
C) 0.1 to 0.15.
D) 1 to 2.

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The movement of landmasses across the surface of Earth is called


A) tectonic spread.
B) Pangaea.
C) continental drift.
D) continental divide.

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A regional species pool is the collection of species


A) that differ in occurrence within a region.
B) that differ in occurrence between two habitats.
C) in a relatively small area of homogeneous habitat.
D) in a large area of homogeneous habitat.

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What do studies of Roman Empire settlements tell us about the legacy effects of humans on the landscape? How do human settlements cause legacy effects?

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Researchers have found that sites closer...

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A classic study by MacArthur and Wilson demonstrated that as the size of islands increases, species


A) richness increases.
B) richness decreases.
C) diversity increases.
D) diversity decreases.

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   (Figure 22.27) What caused changing tree distributions seen in the figure? As global warming increases temperatures, what can be expected to happen to tree distributions of spruce, hemlock, and oak? (Figure 22.27) What caused changing tree distributions seen in the figure? As global warming increases temperatures, what can be expected to happen to tree distributions of spruce, hemlock, and oak?

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In the figure, the tree species are alte...

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MacArthur and Wilson's theory of island biogeography considers both species-area relationships and


A) biomes.
B) productivity.
C) isolation.
D) environment.

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Which of the following is NOT associated with low terrestrial diversity?


A) recent glaciation
B) variation in vegetation
C) high temperature
D) low precipitation

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As habitat _____, species diversity _____.


A) homogeneity decreases; decreases
B) homogeneity increases; increases
C) heterogeneity decreases; increases
D) heterogeneity increases; increases

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Landmass movement occurs because islands of _____ rock are moved by _____ currents of semimolten material.


A) high-density; conduction
B) low-density; convection
C) low-density; conduction
D) high-density; convection

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A graph of the number of species observed in relation to the number of individuals sampled is called a species _____ curve.


A) increase
B) accretion
C) accumulation
D) area

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Regional species diversity is also called _____ diversity.


A) beta
B) alpha
C) delta
D) gamma

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Which field considers the spatial arrangement of habitats at different scales?


A) community ecology
B) landscape ecology
C) ecosystem ecology
D) population ecology

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Which of the following describes the log-log form of the species area curve?


A) log S + log c = z log A
B) log S = log c × z log A
C) log S = log c + z log A
D) log S + z log A = log c

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Local species diversity is also called _____ diversity.


A) gamma
B) beta
C) alpha
D) delta

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A long-lasting influence of historical processes on the current ecology of an area is called a _____ effect.


A) retention
B) landscape
C) legacy
D) spatial

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For marine organisms, the highest diversity is seen at _____ and the lowest diversity is seen at _____.


A) low longitudes; high longitudes
B) high longitudes; low longitudes
C) low latitudes; high latitudes
D) high latitudes; low latitudes

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