Which of the following would increase the carrying capacity of an ecosystem?

• A. An increase in available resources
• B. An increase in predator population
• C. A decrease in primary productivity
• D. A decrease in habitat space

Answer: (A)

Verified step by step guidance

1. Understand the concept of carrying capacity: Carrying capacity is the maximum number of individuals of a particular species that an environment can support sustainably over time, given the available resources such as food, habitat, water, and other necessities.
2. Identify the factors that affect carrying capacity: These include the availability of resources, space, and environmental conditions. An increase in resources or space generally increases the carrying capacity, while a decrease in these factors or an increase in limiting factors like predators can decrease it.
3. Analyze the options provided: Consider how each option affects the carrying capacity. An increase in available resources would likely increase the carrying capacity as more individuals can be supported. An increase in predator population might decrease it as more individuals are preyed upon. A decrease in primary productivity would reduce the energy available in the ecosystem, potentially lowering the carrying capacity. A decrease in habitat space would also likely reduce the carrying capacity as there is less room for individuals to live.
4. Focus on the option that increases carrying capacity: Since carrying capacity is directly related to the availability of resources, an increase in available resources would allow the ecosystem to support more individuals, thus increasing the carrying capacity.
5. Conclude with the correct choice: Based on the analysis, the option that would increase the carrying capacity of an ecosystem is 'An increase in available resources.'