The graph formed by plotting species richness against area for a wide variety of taxa (angiosperm plants, birds , bats , fresh water fishes , etc) turns out to be a

Options

A. parabola
B. straight line
C. Rectangular hyperbola
D. Any of the above

Answer

To solve the question regarding the graph formed by plotting species richness against area for various taxa, we can follow these steps:

### Step 1: Understand the Concepts
- **Species Richness**: This refers to the number of different species present in a given area.
- **Area**: This is the size of the habitat or environment being studied.

### Step 2: Identify the Relationship
- The question asks about the relationship between species richness and area. Generally, as the area increases, the number of species (species richness) tends to increase as well.

### Step 3: Determine the Type of Graph
- The options given are:
1. Parabola
2. Straight Line
3. Rectangular Hyperbola
4. Aniota

### Step 4: Analyze Each Option
- **Parabola**: Typically represents a quadratic relationship, which does not fit the context of species richness and area.
- **Straight Line**: Indicates a linear relationship, which may not accurately represent the complexity of ecological data.
- **Rectangular Hyperbola**: This suggests that as area increases, species richness increases at a decreasing rate, which aligns with ecological principles.
- **Aniota**: This term does not relate to the context of the question.

### Step 5: Conclusion
- Based on the analysis, the correct answer is that the graph formed by plotting species richness against area is a **Rectangular Hyperbola**.

### Final Answer
The graph formed by plotting species richness against area for a wide variety of taxa turns out to be a **Rectangular Hyperbola**.

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