The abundance of a species population within its habitat is called

Options

A. Relative density
B. Regional density
C. Absolute density
D. Niche density

Answer

To solve the question, "The abundance of a species population within its habitat is called," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Terms**:
- First, we need to clarify what is meant by "abundance" and "habitat."
- Abundance refers to the number of individuals of a species in a given area, while habitat is the environment in which a particular species lives.

2. **Identify the Concept**:
- The question is asking for a specific term that describes the abundance of a species within its habitat.

3. **Recall Relevant Terminology**:
- In ecology, the term that describes the abundance of a species in its habitat is often referred to as "niche density."
- This term indicates how densely populated a species is within its ecological niche.

4. **Consider Ecological Principles**:
- It is important to note that each habitat can support multiple ecological niches, but typically, two or more species cannot occupy the same niche simultaneously due to competition.

5. **Select the Correct Answer**:
- Based on the understanding of the terms and concepts, the answer to the question is "niche density."

### Final Answer:
The abundance of a species population within its habitat is called **niche density**.

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