Which of the following statements about biodiversity is incorrect ?

Options

A. Number of species in tropics is greater than number of species in polar regions.
B. Number of species of vascular plants in a forest in Midwest USA is greater than the number of species of vascular plants in Equator.
C. Number of species in India is greater than number of species in Norway.
D. Number of bird species in Columbia is greater than number of bird species in New York .

Answer

To solve the question "Which of the following statements about biodiversity is incorrect?", we will analyze each statement provided in the context of biodiversity patterns.

### Step-by-Step Solution:

1. **Understanding Biodiversity**:
- Biodiversity refers to the variety of life in a particular habitat or ecosystem. It includes the number of species, genetic diversity, and the variety of ecosystems.

2. **Evaluating the First Statement**:
- The first statement claims that "the number of species in tropics is greater than the number of species in the polar region."
- This statement is generally accepted as true due to the latitudinal gradient, where biodiversity tends to decrease as one moves from the equator to the poles. Therefore, this statement is correct.

3. **Evaluating the Second Statement**:
- The second statement asserts that "the number of species in India is greater than the number of species in Norway."
- India is known for its high biodiversity and is one of the 12 mega-diverse countries. In contrast, Norway has a lower biodiversity due to its different ecological conditions. This statement is also correct.

4. **Evaluating the Third Statement**:
- The third statement states that "the number of species of vascular plants in the forest in the Midwest USA is greater than the number of species of vascular plants in the equator."
- This statement contradicts the established understanding of biodiversity. The equatorial regions are known to have significantly higher species diversity compared to temperate regions like the Midwest USA. Thus, this statement is incorrect.

5. **Conclusion**:
- After evaluating all statements, the incorrect statement is the third one: "the number of species of vascular plants in the forest in the Midwest USA is greater than the number of species of vascular plants in the equator."

### Final Answer:
The incorrect statement about biodiversity is: "the number of species of vascular plants in the forest in the Midwest USA is greater than the number of species of vascular plants in the equator."

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