Alexander Von Humbolt described for the first time

Options

A. Ecological Biodiversity
B. Laws of limiting factor
C. Species area relationships
D. Population Growth equation

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about what Alexander Von Humboldt described for the first time among the given options: ecological biodiversity, laws of limiting factors, species-area relationship, or population growth equation.

2. **Identifying Alexander Von Humboldt's Contributions**: Alexander Von Humboldt was a notable Prussian geographer, explorer, and naturalist. His work primarily focused on botanical geography, which involves the study of plants in relation to their geographical distribution.

3. **Exploring the Options**:
- **Ecological Biodiversity**: This term refers to the variety of species in a specific ecological setting. While Humboldt studied biodiversity, he did not coin this term.
- **Laws of Limiting Factors**: This principle explains how certain environmental factors limit the growth and survival of organisms. Humboldt's work contributed to ecology, but he is not credited with this specific law.
- **Species-Area Relationship**: This concept describes the relationship between the size of an area and the number of species that inhabit it. Humboldt is recognized for first observing and describing this relationship during his research in South America.
- **Population Growth Equation**: This equation deals with how populations grow over time. While important, it is not attributed to Humboldt.

4. **Conclusion**: Based on the analysis, the correct answer is that Alexander Von Humboldt described the **species-area relationship** for the first time.

**Final Answer**: Alexander Von Humboldt described the species-area relationship for the first time.

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