Which statement best summarizes the results of the experiment by Damschen and her colleagues on the effect of
landscape corridors on species richness?
a. Habitat patches with landscape corridors are at higher risk of encroachment by exotic species than are isolated
habitat patches.
b. Over time, the number of native species harbored by habitat patches with landscape corridors was increasingly
greater than in isolated habitat patches.
c. The number of both native and exotic species increased over time in habitat patches that were connected by
landscape corridors.
d. The number of native species increased over time in isolated habitat patches but not in those connected by
corridors.
e. The number of exotic and native species decreased in patches connected by landscape corridors.
ANSWER: b
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____________________ Indicate whether the statement is true or false.
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