Types of biodiversity, Biology

(i)     Genetic  Bio- Diversity:

All forms of life on earth contain genes. Genes are carrier of hereditary characteristic from one generation to another.

" genetic diversity includes differences in the genetic makeup within same species". Within any given species there can be several differences in the colour, shape, size, resistance against diseases and resilience to survive under adverse environmental conditions. Such different characteristics within the same species are known as 'genetic biodiversity'. The species having large no of varieties-or races are considered as rich and more diverse in genetic makeup. The genetic diversity increases environment viability and contribute in the evolution of new species.

(ii)    Species diversity:

It refers to the presence of variety of species within a specific region. Species diversity of a region is measured on the basis of two parameters these are "species richness" and "species evenness or equitability"

Species richness refers to the no of species per unit area.

Species evenness shows the evenness in no of individuals of that species. This can be understood by following example.

There are three sample areas:

Sample area 1: in this sample area there are three species of birds. One species has four individual and other two have one each. This sample area shows species richness.

Sample area 2: this sample area have three species of birds each having two individuals. This area shows species evenness and it is more diverse than sample area one.

Sample area 3:  it has six individuals, two each from birds,mammals and insects. This sample is most diverse than the other two sample areas.

In the above example each has equal no of species but varying no of individual per species.

(iii)      Ecosystem diversity:

 It is defined as the diversity of habitats, communities, and ecological processes within the biosphere. It describes the no of niches, trophic levels and various ecological processes that sustain energy flow, food webs and the recycling of nutrients. The number of ecosystem may vary within a geographical region. It is measure of ecosystem diversity of a region.

Posted Date: 7/11/2012 7:35:03 AM | Location : United States







Related Discussions:- Types of biodiversity, Assignment Help, Ask Question on Types of biodiversity, Get Answer, Expert's Help, Types of biodiversity Discussions

Write discussion on Types of biodiversity
Your posts are moderated
Related Questions
Explain briefly Nucleic Acids (DNA & RNA)? Nucleic Acids (DNA & RNA) :  Nucleic acids are the molecules that contain genetic information that is inherited, and are responsibl

Microfilaments comprise of the proteins The microfilaments comprise of the proteins, actin and myosin, the same contractile proteins that are found in skeletal muscle cells. Si

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

(a) What is the distinction among 'breathing' and 'respiration'? (b) What part do 'ventilation' and 'gaseous exchange' play in these processes?   (a) Breathing i

Q. Explain about Catheters and Guide Wires? The commonly used guide wires vary in diameter from 0.012 to 0.052; with 0.035 or 0.038 being the most commonly used sizes. The stan


what is the structural formula for Galactose?

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Q. What are the classes of lipoproteins in the blood? Blood lipids (cholesterol, triglycerides and phospholipids) being insoluble in blood need a ship to travel in our body; it

Q. Describe the process of Rodent control? Rats and mice are destructive and cause huge loss of stored food commodities. They transmit pathogenic bacteria. Rats and mice are ge