Question

question 1:
a significant, long - lasting environmental disturbance, such as a prolonged drought, was introduced between year 3 and year 4. given this information and the data table below, predict the most likely long - term consequence/outcome for the overall biodiversity and stability of this ecosystem if the disturbance (drought) continues. select the best answer.

the red fox population will eventually stabilize (remain steady) and increase as the declining prairie vole population forces them to seek new food sources, thereby increasing overall biodiversity.

the stability of the ecosystem will decrease due to a series of ongoing effects that lead to reduced biodiversity.

the ecosystem will become more stable as the decreased competition for resources leads to the recovery of key species.

the american bison population will remain relatively stable, acting as a buffer that prevents the ecosystem from a complete collapse.

Explanation:

A significant long - lasting environmental disturbance (like a prolonged drought) between Year 3 and Year 4 would likely have a negative impact on biodiversity. Biodiversity is crucial for ecosystem stability. A decrease in biodiversity (due to the disturbance) would lead to a decrease in ecosystem stability. The first option about the Red Fox population increasing overall biodiversity is not likely as a single species' change (due to seeking new food sources) may not compensate for the overall loss caused by the disturbance. The third option about the ecosystem becoming more stable with decreased competition is incorrect because the disturbance is likely to cause more harm than just a simple change in competition (it's a long - lasting disturbance). The fourth option about the American Bison population acting as a buffer is also not likely as a single species (even if it remains stable) cannot fully prevent the negative impacts of a significant long - lasting disturbance on overall biodiversity and stability.

Answer:

The stability of the ecosystem will decrease due to a series of ongoing effects that lead to reduced biodiversity.