Living Environment Regents Practice Test

What is a likely ecological consequence of cutting down oak trees in an oak-hickory forest?

1. Increase in biodiversity

2. Disruption of natural cycles

3. Improvement in soil quality

4. Enhanced growth of remaining trees

The correct answer is: Disruption of natural cycles

Cutting down oak trees in an oak-hickory forest primarily disrupts natural cycles within that ecosystem. Oak trees play a significant role in their environment; they are part of intricate relationships involving various species, including animals, plants, and fungi. When these trees are removed, the habitat undergoes significant changes, leading to alterations in the availability of food and shelter for local wildlife. Additionally, oak trees contribute to nutrient cycling and influence water absorption and retention in the soil. The removal of such foundational trees can disrupt these processes, resulting in instability in the ecosystem and negative impacts on biodiversity. This cascading effect highlights the importance of each species in maintaining ecological balance.