Regional diversity is also called

Options

A. Alpha diversity
B. Beta diversity
C. Gamma diversity
D. Ecosystem diversity

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the term that is synonymous with "regional diversity."

2. **Reviewing the Options**: The provided options are:
- Alpha diversity
- Beta diversity
- Gamma diversity
- Ecosystem diversity

3. **Defining Alpha Diversity**:
- Alpha diversity refers to the average species diversity within a specific habitat. It measures the number of species in a particular area or ecosystem.

4. **Defining Beta Diversity**:
- Beta diversity measures the difference in species diversity between two habitats or regions. It is calculated by comparing the local (alpha) diversity to the regional diversity. Importantly, beta diversity is also referred to as regional diversity.

5. **Defining Gamma Diversity**:
- Gamma diversity represents the total species diversity across a larger landscape or region, incorporating both alpha and beta diversity.

6. **Defining Ecosystem Diversity**:
- Ecosystem diversity, also known as ecological diversity, refers to the variety of ecosystems within a given area, highlighting the differences among various ecosystems.

7. **Identifying the Correct Answer**:
- Since beta diversity is defined as the diversity of species between two habitats and is also known as regional diversity, the correct answer to the question is **beta diversity**.

**Final Answer**: Regional diversity is also called **beta diversity**.

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