Question

1. which of the listed factors is negatively impacting the wolf population due to their isolation on isle royale?

lack of genetic differences between mating wolves leading to low survival rates
there are too many wolf packs located on isle royale competing for its limited resources.
the fresh water is turning into salt water causing all populations on the island to suffer.

1. which of the listed factors is negatively impacting the moose population due to their isolation on isle royale?

all the vegetation is being burned by wildfires.
the inability to travel to colder areas.
the fresh water is turning into salt water causing all populations on the island to suffer.

1. review the graph provided. what statement can be made about the significant decline in wolves around 1979?

Explanation:

1. In isolated populations like wolves on Isle Royale, in - breeding due to lack of genetic differences between mating individuals can lead to low survival rates. There is no indication of too many wolf packs competing, and the freshwater - turning - to - saltwater scenario is not typical in this context.
2. For moose on Isle Royale, the inability to travel to colder areas due to isolation can be a negative factor. Wildfires burning all vegetation is an extreme and less likely ongoing situation, and the freshwater - turning - to - saltwater is not a common issue.
3. Without seeing the graph details, in general, a significant decline in wolves around 1979 could be due to factors like disease, lack of prey (moose population changes could be related), or in - breeding effects.

Answer:

1. Lack of genetic differences between mating wolves leading to low survival rates
2. The inability to travel to colder areas
3. No graph details provided, so no specific answer possible.