Question

5.4 - community stability and succession
this section focuses on how ecosystems respond to disturbances, the process of succession, and the role of i
community change.
21
multiple choice 1 point
a disturbance in an ecosystem is best described as:
the adaptation of species to new habitats
a stable long - term pattern of species composition
a gradual increase in biodiversity
any event that disrupts or unbalances an ecological community

Explanation:

In ecology, a disturbance is defined as any event that disrupts or unbalances an ecological community. Let's analyze each option:

• The adaptation of species to new habitats is more related to evolution and species' response to environmental changes over time, not a disturbance.
• A stable long - term pattern of species composition is a description of a climax community (in the context of succession), not a disturbance.
• A gradual increase in biodiversity is often a result of ecological succession (e.g., primary or secondary succession), not a disturbance.
• Any event that disrupts or unbalances an ecological community directly aligns with the ecological definition of a disturbance.

Answer:

Any event that disrupts or unbalances an ecological community