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 _______.

Question

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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