The introduction of arctic foxes to some of the Aleutian Islands led to a drastic _______ in nitrogen-rich guano, and this change had the effect of transforming the islands from grassland to _______.
A) increase; communities of small shrubs and forbs
B) increase; tundra
C) decrease; communities of small shrubs and forbs
D) decrease; alpine forest

Question

Quizplus · Accepted Answer

The introduction of arctic foxes led to a decrease in seabird populations, which in turn reduced the amount of nitrogen-rich guano. This change transformed the islands from grassland to communities of small shrubs and forbs.

The Introduction of Arctic Foxes to Some of the Aleutian