BIODIVERSITY PPT

1. BIODIVERSITY
NAME – JYOTI PRAKASH BEHERA
REGD NO – 210415140007
BRANCH – BCOM(B.A) SEM2
SUBJECT – EVS
SUBJECT TEACHER – DR.ATIAA ARZOO

2. ABOUT BIODIVERSITY
Biodiversity is all the different kinds of life
you’ll find in one area—the variety of animals,
plants, fungi, and even microorganisms like
bacteria that make up our natural world. Each
of these species and organisms work together
in ecosystems, like an intricate web, to
maintain balance and support life. Biodiversity
supports everything in nature that we need to
survive: food, clean water, medicine, and
shelter.

3. HIERARCHICAL LEVEL OF
BIODIVERSITY
Biological diversity includes three hierarchical levels:-
Biodiversity is wide-ranging and is normally divided into three types or levels:
•Genetic Diversity
•Species Diversity
•Ecological Diversity

4. IMPORTANCE OF BIODIVERSITY
Humans cannot exist without biodiversity as we use it directly and
indirectly in a number of ways. Biodiversity plays important role in the
following:
•Formation of Soil
•Fertility of the soil
•Increase in overall crop yield and fodder production
•Increase in soil nutrient remineralisation
•Increases resistance to plant invasion
•Decreases disease prevalence on plants
•Increases soil organic matter

5. ECOLOGICAL ROLE OF
BIODIVERSITY
All species provide some kind of function to an ecosystem. They
can capture and store energy, produce organic material,
decompose organic material, help to cycle water and nutrients
throughout the ecosystem, control erosion or pests, fix
atmospheric gases, or help regulate climate.
Ecosystems also provide various supports of production and
services such as purification of the air and water, stabilisation
and moderation of the , decrease of flooding, drought, and other
environmental disasters.

6. HOT-SPOTS OF BIODIVERSITY
Following the criteria must for an area to be declared as Biodiversity
Hotspot, there are major four biodiversity hotspots in India:
1.The Himalayas
2.Indo-Burma Region
3.The Western Ghats
4.Sundaland

7. THREATS OF BIODIVERSITY
Some of the main threats to biodiversity are:
1. Human Activities and Loss of Habitat,
2. Deforestation,
3. Desertification,
4. Marine Environment,
5. Increasing Wildlife Trade and
6. Climate Change.