Question

Consider the relationship between ecosystem stratification, diversity, productivity, and stability. Which statement is incorrect?

1. The degree of stratification in an ecosystem is often inversely proportional to its diversity.
2. Ecosystems with higher degrees of stratification generally exhibit greater stability.
3. Increased stratification can lead to a more diverse and productive ecosystem.

• A. i only
• B. None of these
• C. ii only
• D. i, iii

Answer 1

Answer:

A. i only

• A higher degree of stratification in an ecosystem, especially in terrestrial biomes like forests, is generally indicative of greater diversity, productivity, and stability.

• The presence of multiple vertical layers provides a wider array of niches and microhabitats, allowing more species to coexist and utilize resources efficiently.

• This structural complexity contributes to a more robust and resilient ecosystem, better equipped to absorb disturbances and maintain its functions over time.

• For example, a multi-layered forest can capture more sunlight and support a wider range of life forms compared to a simple grassland.