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Why may human intervention be necessary for the small population of wolves on Isle Royale to survive?

A. The rescue effect will not occur due to a decrease in ice bridge formation between the mainland and the isle.
B. The moose population will eventually suffer a die-off, leaving the wolves with insufficient food resources.
C. The wolf population will eventually grow too large to be sustained by the moose population.
D. The wolves are susceptible to fluctuations in birth rate because they are large, long-lived animals.

Answer :

Final answer:

Human intervention may be necessary for the Isle Royale wolves due to the effects of climate change on migration, the imbalance between the wolf and moose populations, and the wolves' vulnerability to birth rate fluctuations. Intervention methods could include reintroducing wolves from other populations or controlling the moose population. Similar intervention with wolves in Yellowstone led to increased ecosystem biodiversity.

Explanation:

Human intervention may be necessary for the small population of wolves on Isle Royale primarily due to three interconnected factors. Firstly, the decrease in ice bridge formation as a result of climate change impedes the natural migration and genetic exchange with wolves on the mainland. This isolation can lead to inbreeding and vulnerability to disease, which risks the survival of the Isle Royale wolf population.

Secondly, the wolf population being too large to be sustained by the available moose population can result in resource scarcity, leading to a decline in the health and survival of wolves. Moreover, a die-off in the moose population would also deprive the wolves of their primary food source, making survival increasingly difficult.

Lastly, as large, long-lived animals, wolves are susceptible to fluctuations in birth rates, which if considerably low, can threaten the population's stability. These risks necessitate human intervention, possibly in the form of reintroducing wolves from other populations or managing the moose population to ensure sustainable food availability for wolves.

As seen with the reintroduction of wolves in Yellowstone National Park, human intervention can sometimes be crucial to maintaining biodiversity and stable ecosystems, particularly when it involves keystone species like wolves.

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