Answer :
Final answer:
A keystone species is vital to maintaining ecosystem structure and function, with significant influence on its community dynamics. Examples include species like alligators that affect the habitat and population dynamics of numerous other species. Removing such species can lead to drastic changes in the ecosystem.
Explanation:
Definition of a Keystone Species
A keystone species is defined as a species that has a significant influence on the structure and functioning of an ecosystem. These species are crucial for maintaining the ecological balance because their presence or absence can dramatically change the way the ecosystem operates. For example, alligators in freshwater ecosystems help control the populations of other species and create habitats for various organisms by forming ‘alligator holes’ that provide water and shelter for fish, birds, and other wildlife during dry periods.
Why Are Keystone Species Important?
- They contribute to biodiversity.
- They help in nutrient cycling.
- They provide stability to the ecosystem.
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