Complete Biology Formulas, Equations & Quick Revision Notes

Biodiversity and Conservation Formulas – Complete Guide with Examples & Notes

Biodiversity and conservation is a crucial chapter in biology that explains the variety of life on Earth and methods to protect it. This page includes important biodiversity formulas, ecological relationships, conservation methods, and exam-focused notes for NEET and CBSE students.

What is Biodiversity?

Biodiversity refers to the variety of living organisms including plants, animals, and microorganisms present in an ecosystem. It includes genetic, species, and ecosystem diversity.

Types of Biodiversity

Genetic Diversity – Variation within species
Species Diversity – Variety of species in an area
Ecosystem Diversity – Variety of ecosystems

Important Biodiversity Formulas

Formula	Expression	Use
Species-Area Relationship	S = C × A^Z	Species richness vs area
Log Form	log S = log C + Z log A	Graphical representation
Alpha Beta Gamma Relation	γ = α × β	Overall biodiversity
Population Density	D = N / Area	Number of individuals

1. Species-Area Relationship

Formula: S = C × A^Z

Species richness increases with area. On a logarithmic scale:

log S = log C + Z log A

This shows that larger areas support more species.

2. Alpha, Beta, Gamma Diversity

Alpha (α) – Species in one habitat
Beta (β) – Difference between habitats
Gamma (γ) – Total regional diversity

Formula: γ = α × β

These measures help ecologists understand biodiversity at different levels :contentReference[oaicite:2]{index=2}

3. Importance of Biodiversity

Maintains ecological balance
Provides food, medicine, and resources
Supports ecosystem stability

4. Threats to Biodiversity

Habitat loss
Pollution
Climate change
Overexploitation

5. Biodiversity Conservation Methods

In-Situ Conservation

Protection of species in natural habitats such as national parks and wildlife sanctuaries.

Ex-Situ Conservation

Protection outside natural habitat such as zoos and gene banks :contentReference[oaicite:3]{index=3}

Solved Examples

Example 1:

If α = 10 and β = 5 γ = 10 × 5 = 50

Example 2:

Area increases → species richness increases according to S = C × A^Z

Key Points for Exams

India is a mega-diverse country
Species-area relationship is very important
In-situ and ex-situ are key conservation methods

FAQs

What is biodiversity conservation?

It is the protection and management of biodiversity for future generations :contentReference[oaicite:4]{index=4}