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Diversity in the Living World - Biodiversity and Sacred Groves

Grade 6CBSE

Review the key concepts, formulae, and examples before starting your quiz.

🔑Concepts

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Biodiversity refers to the variety and variability of all living organisms, including plants, animals, and microorganisms, found in a particular region or on Earth as a whole.

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The living world is categorized into different habitats like terrestrial (land), aquatic (water), and aerial (air).

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Flora refers to the plant life occurring in a particular region, while Fauna refers to the animal life of that region.

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Sacred Groves are patches of forest land that are traditionally protected by local communities due to religious beliefs or cultural significance. They are dedicated to local deities.

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Sacred Groves play a vital role in conservation as they act as 'In-situ' conservation centers, preserving rare, endangered, and endemic species that might be extinct elsewhere.

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Biodiversity maintains the ecological balance. For example, the ratio of Oxygen to Carbon Dioxide is maintained through the interaction of plants and animals.

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Threats to biodiversity include deforestation, habitat destruction, pollution, and over-exploitation of natural resources.

📐Formulae

Biodiversity=Species Richness+Species Evenness\text{Biodiversity} = \text{Species Richness} + \text{Species Evenness}

Ecosystem=Biotic Components (Living)+Abiotic Components (Non-living)\text{Ecosystem} = \text{Biotic Components (Living)} + \text{Abiotic Components (Non-living)}

Percentage of Forest Cover=(Area under ForestTotal Geographical Area)×100\text{Percentage of Forest Cover} = \left( \frac{\text{Area under Forest}}{\text{Total Geographical Area}} \right) \times 100

💡Examples

Problem 1:

In a small forest patch, scientists identified 120120 different species of flowering plants and 4545 species of non-flowering plants. What is the total species richness of plants in that patch?

Solution:

120+45=165120 + 45 = 165

Explanation:

Species richness is the total number of different species represented in an ecological community. By adding the flowering and non-flowering plant species, we get the total plant biodiversity for that area.

Problem 2:

Identify the primary locations of Sacred Groves in India.

Solution:

  1. Khasi and Jaintia Hills in Meghalaya. 2. Aravalli Hills in Rajasthan. 3. Western Ghat regions of Karnataka and Maharashtra. 4. Sarguja, Chanda, and Bastar areas of Madhya Pradesh.

Explanation:

These regions are famous for community-protected forests where hunting and felling of trees are strictly prohibited by local traditions.

Problem 3:

A region has a total area of 500 km2500 \text{ km}^2. Out of this, 75 km275 \text{ km}^2 is designated as a Sacred Grove. Calculate the percentage of the area protected as a Sacred Grove.

Solution:

Percentage=(75500)×100=15%\text{Percentage} = \left( \frac{75}{500} \right) \times 100 = 15\%

Explanation:

To find the percentage, we divide the area of the Sacred Grove by the total area and multiply by 100100. This shows that 15%15\% of the land is protected through community traditions.