Question

Red squirrels and gray squirrels have been the native species on an island for many years. A few years ago, black squirrels entered this island. The black squirrel is an invasive species. Invasive species aren’t native to the ecosystem. They move into an ecosystem because of natural changes or human intervention. Red squirrels and black squirrels have identical food requirements, but gray squirrels have a different diet. What THREE effects will these events have on the island’s squirrel population?
-The food availability of red squirrels may increase.
-The red and black squirrels will have to compete for nutrition.
-The food availability for gray squirrels will not be affected.
-The food availability for red squirrels may decrease.
-The food availability for gray squirrels will be affected.

Answer 1

The THREE effects on the island's squirrel will be The red and black squirrels will have to compete for nutrition:

• The red and black squirrels will have to compete for nutrition: As the invasive specie will also require food for its survival so there will be competition for nutrition.

• The food availability for red squirrels may decrease: As red and black squirrels have identical food requirements so because of competition there will be less availability of food for red squirrels

• The food availability for gray squirrels will not be affected: The gray squirrel have different diet, there is no competition of food for them

Answer 2

I would say the food availability for gray squirrels will be affected because we do not know their diet. It also say that the red squirrels and the black squirrels have the same diets meaning less food on the Island for the grey squirrel( depending on what he eats. )