The Serengeti plains are part of the African savanna ecosystem and are home to a variety of different species of plants and animals. The Serengeti plains experience a seven-month period of seasonal drought each year, during which the ecosystem receives only four inches of rain and the availability of some resources becomes very scarce. Which type of limiting factors does the seasonal drought in the Serengeti plains affect?
Answer
A
density-independent factors
B
density-dependent factors
C
population-dependent factors
D
population-independent factors
Explanation
A seasonal drought is an abiotic event that reduces water availability, regardless of how many organisms live in the Serengeti. Limiting factors that affect populations regardless of their density are called density-independent factors, so the drought is a density-independent factor.
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