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PPT OF BIODIVERSITY
PPT OF BIODIVERSITY
CONTENTS
1. Introduction
2. Concept of Biodiversity and its types
3. Distribution of Biodiversity
4. Biodiversity and balance of Nature
5. Benefits of Biodiversity
6. Threats to Biodiversity
7. Conservation of Biodiversity
8. Biodiversity of India
9. Conventions on Biodiversity
10.Conclusion
11.Reference
INTRODUCTION
The term Biodiversity was first coined by Walter G. Rosen in
1986.
The biosphere comprises of a complex collections of innumerable
organisms, known as the Biodiversity, which constitute the
vital life support for survival of human race.
Biological diversity, abbreviated as biodiversity, represent the
sum total of various life forms such as unicellular fungi,
protozoa, bacteria, and multi cellular organisms such as plants,
fishes, and mammals at various biological levels including
gens, habitats, and ecosystem .
Bio =
BioBiodiversitydiversity
What does “Bio” means?
BioBiodiversitydiversity
Diversity = Variety
What does “Diversity”
means?
CONCEPT AND TYPES OF BIODIVERSITY
 Biodiversity is the variety of life forms on earth and the
essential interdependence of all living things.
 As defined in convention on Biological diversity singed at Rio
De Jenerio (Brazil) in 1992 by 154 countries, the Biodiversity
defined as “the variability among living organisms from all
sources including, inter alia, terrestrial, marine and other
aquatic eco-systems and the ecological complexes of which
the area part- this include diversity with in species, between
species and of ecosystem.”
 According to IUCN in 1998, “the variety and variability of
species of their population, the variety of species of their life
forms, the diversity of the complex association with species
with their interaction and their ecological process which
influences perform.”
There are three types of biodiversity
 Diversity of Species
 Diversity of Ecosystem
 Diversity of Genes
DISTRIBUTION OF BIODIVERSITY
 Flora and fauna diversity
depends on-
 Climate
 Altitude
 Soils
 Presence of other species
 Most of the biodiversity
concentrated in Tropical region.
 BIODIVERSITY HOTSPOTS:
 A region with high biodiversity
with most of spices being
Endemic.
 India have two Biodiversity
Hotspots- East Himalayan
Region and Western Ghat.
BIODIVERSITY AND BALANCE OF NATURE
 Tropic Level: Elimination of species from tropic level can
cause destruction of ecosystem as well as biodiversity.
Complex Ecosystem: In a complicated ecosystem having several
tropic levels, loss of one or more spices do not cause any serious
problem because the alternative available.
Keystone Species: Loss or addition of species causes detectable
changes in ecosystem rates i.e. species make unique contribution
to ecosystem functioning.
Niche Complementary: Difference among species in their
requirements for different resources will cause complementary
interaction so that a species could obtain more resources.
Facilitation and Mutualism: Plants may also benefit from
their neighbors through amelioration of the physical
and biotic environment.
Portfolio Effect: Species richness increases the temporal
stability of the entire community while the biomass is
stabilized.
Insurance Hypothesis: Biodiversity buffers ecosystem
against environmental changes such as global
warming.
BENEFITS OF BIODIVERSITY
Consumptive value:
 Food/Drink
 Fuel
 Medicine
 Batter crop varieties
 Industrial Material
Non-Consumptive Value:
 Recreation
 Education and Research
 Traditional value
Ecological services:
Balance of nature
Biological productivity
Regulation of climate
Degradation of waste
Cleaning of air and water
Cycling of nutrients
Control of potential pest and disease causing species
Detoxification of soil and sediments
Stabilization of land against erosion
Carbon sequestration and global climate change
Maintenance of Soil fertility
THREATS TO BIODIVERSITY
Natural causes:
 Narrow geographical area
 Low population
 Low breeding rate
 Natural disasters
Anthropogenic causes:
 Habitat modification
 Overexploitation of selected
species
 Innovation by exotic species
 Pollution
 Hunting
 Global warming and climate
change
 Agriculture
 Domino effect
RECENT ISSUES ON BIODIVERSITY
 Some 75 per cent of the genetic diversity of crop
plants been lost in the past century.
 Some scientists estimate that as many as 3 species per hour are
going extinct and 20,000 extinctions occur each year.
 Roughly one-third of the world’s coral reef systems have been
destroyed or highly degraded.
 About 24 per cent of mammals and 12 per cent of bird species are
currently considered to be globally threatened.
 More than 50 per cent of the world’s wetlands have been drained,
and populations of inland water and wetland species have declined
by 50per cent between 1970 and 1999.
CONSERVATION OF BIODIVERSITY
 Biodiversity inventories
 Conserving Biodiversity in protected Habitats-
• In situ conservation
• Ex situ conservation
 Seed Bank, Gene Bank, Pollen Bank, DNA
Bank
Gene Bank
zoo
Bandhavgarh National Park
 Restoration of Biodiversity
 Imparting Environmental Education
 Enacting, strengthening and enforcing Environmental
Legislation
 Population Control
 Reviewing the agriculture practice
 Controlling Urbanization
 Conservation through Biotechnology
PPT OF BIODIVERSITY
BIODIVERSITY IN INDIA
Categories No. of Indian
Species
% of Indian species
Evaluated
Species Threatened
In India
Mammals 386 59 41%
Birds 1219 _ 7%
Reptiles 495 73 46%
Amphibians 207 79 57%
Freshwater Fish 700 46 70%
Source- Based on Kumar et.al 2000
BIODIVERSITY CONVENSIONS
 The first convention on biodiversity organized at Rio De
Janerio, capital of Brazil from June 5 to 16, 1992 named as
United Nation Conference On Environment and Development
(UNCED), batter known as Rio Summit to maintain ecological
balance and enrich biodiversity. The agreement on
biodiversity signed by 150 countries including three
programmes-
 To ensure conservation of biodiversity
 Sustainable use of biodiversity
 Rational and equitable share of profit to accrue from use of
genetic resources.
 The second convention organized at Johannesburg in 2002
called World Summit On Sustainable Development (WSSD)
where the Biodiversity and Sustainable Ecosystem
Management was the issue.
The International Conference held on Biodiversity in
Relation to Food & Human Security in a warming planet
15-17 February, 2010 in Chennai.
International Conference on Wildlife & Biodiversity
Conservation held on 3 to 5 June, 2010 at Dal lake,
Srinagar, Kashmir.
Indian Biodiversity Congress (IBC) & Indian
Biodiversity Expo(IBE) will be held on 27-31 December
at Thriuvananthapuram, Kerala.
CONCLUSION
Biodiversity is our life. If the Biodiversity got lost at
this rate then in near future, the survival of human
being will be threatened. So, it is our moral duty to
conserve Biodiversity as well our Environment. Long-
term maintenance of species and their management
requires co-operative efforts across entire landscapes.
Biodiversity should be dealt with at scale of habitats or
ecosystems rather than at species level.
REFERENCES
 Roy Sovan, Environmental Science, Publishing Syndicate , 2003,
Kolkata.
 Dara.S.S., Environmental chemistry and Pollution Control,
S.chand & company Ltd., New Delhi
 Schulze Ernst- Detlef, Mooney Harold, Biodiversity and Ecosystem
Function, Springer- Verlag, London
 Mohapatra Pradipta Kumar, Textbook of Environmental
Biotechnology, I.K. International pub. House pvt.
Ltd.,2006, New Delhi
 Khan. T. I. Global Biodiversity and Environmental Conservation,
Pointer Publishers, 2001, Jaipur
 www.eolss.net
 www.ibc2010.com
PPT OF BIODIVERSITY

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PPT OF BIODIVERSITY

  • 3. CONTENTS 1. Introduction 2. Concept of Biodiversity and its types 3. Distribution of Biodiversity 4. Biodiversity and balance of Nature 5. Benefits of Biodiversity 6. Threats to Biodiversity 7. Conservation of Biodiversity 8. Biodiversity of India 9. Conventions on Biodiversity 10.Conclusion 11.Reference
  • 4. INTRODUCTION The term Biodiversity was first coined by Walter G. Rosen in 1986. The biosphere comprises of a complex collections of innumerable organisms, known as the Biodiversity, which constitute the vital life support for survival of human race. Biological diversity, abbreviated as biodiversity, represent the sum total of various life forms such as unicellular fungi, protozoa, bacteria, and multi cellular organisms such as plants, fishes, and mammals at various biological levels including gens, habitats, and ecosystem .
  • 7. CONCEPT AND TYPES OF BIODIVERSITY  Biodiversity is the variety of life forms on earth and the essential interdependence of all living things.  As defined in convention on Biological diversity singed at Rio De Jenerio (Brazil) in 1992 by 154 countries, the Biodiversity defined as “the variability among living organisms from all sources including, inter alia, terrestrial, marine and other aquatic eco-systems and the ecological complexes of which the area part- this include diversity with in species, between species and of ecosystem.”  According to IUCN in 1998, “the variety and variability of species of their population, the variety of species of their life forms, the diversity of the complex association with species with their interaction and their ecological process which influences perform.”
  • 8. There are three types of biodiversity  Diversity of Species  Diversity of Ecosystem  Diversity of Genes
  • 9. DISTRIBUTION OF BIODIVERSITY  Flora and fauna diversity depends on-  Climate  Altitude  Soils  Presence of other species  Most of the biodiversity concentrated in Tropical region.  BIODIVERSITY HOTSPOTS:  A region with high biodiversity with most of spices being Endemic.  India have two Biodiversity Hotspots- East Himalayan Region and Western Ghat.
  • 10. BIODIVERSITY AND BALANCE OF NATURE  Tropic Level: Elimination of species from tropic level can cause destruction of ecosystem as well as biodiversity. Complex Ecosystem: In a complicated ecosystem having several tropic levels, loss of one or more spices do not cause any serious problem because the alternative available. Keystone Species: Loss or addition of species causes detectable changes in ecosystem rates i.e. species make unique contribution to ecosystem functioning. Niche Complementary: Difference among species in their requirements for different resources will cause complementary interaction so that a species could obtain more resources.
  • 11. Facilitation and Mutualism: Plants may also benefit from their neighbors through amelioration of the physical and biotic environment. Portfolio Effect: Species richness increases the temporal stability of the entire community while the biomass is stabilized. Insurance Hypothesis: Biodiversity buffers ecosystem against environmental changes such as global warming.
  • 12. BENEFITS OF BIODIVERSITY Consumptive value:  Food/Drink  Fuel  Medicine  Batter crop varieties  Industrial Material Non-Consumptive Value:  Recreation  Education and Research  Traditional value
  • 13. Ecological services: Balance of nature Biological productivity Regulation of climate Degradation of waste Cleaning of air and water Cycling of nutrients Control of potential pest and disease causing species Detoxification of soil and sediments Stabilization of land against erosion Carbon sequestration and global climate change Maintenance of Soil fertility
  • 14. THREATS TO BIODIVERSITY Natural causes:  Narrow geographical area  Low population  Low breeding rate  Natural disasters Anthropogenic causes:  Habitat modification  Overexploitation of selected species  Innovation by exotic species
  • 15.  Pollution  Hunting  Global warming and climate change  Agriculture  Domino effect
  • 16. RECENT ISSUES ON BIODIVERSITY  Some 75 per cent of the genetic diversity of crop plants been lost in the past century.  Some scientists estimate that as many as 3 species per hour are going extinct and 20,000 extinctions occur each year.  Roughly one-third of the world’s coral reef systems have been destroyed or highly degraded.  About 24 per cent of mammals and 12 per cent of bird species are currently considered to be globally threatened.  More than 50 per cent of the world’s wetlands have been drained, and populations of inland water and wetland species have declined by 50per cent between 1970 and 1999.
  • 17. CONSERVATION OF BIODIVERSITY  Biodiversity inventories  Conserving Biodiversity in protected Habitats- • In situ conservation • Ex situ conservation  Seed Bank, Gene Bank, Pollen Bank, DNA Bank Gene Bank zoo Bandhavgarh National Park
  • 18.  Restoration of Biodiversity  Imparting Environmental Education  Enacting, strengthening and enforcing Environmental Legislation  Population Control  Reviewing the agriculture practice  Controlling Urbanization  Conservation through Biotechnology
  • 20. BIODIVERSITY IN INDIA Categories No. of Indian Species % of Indian species Evaluated Species Threatened In India Mammals 386 59 41% Birds 1219 _ 7% Reptiles 495 73 46% Amphibians 207 79 57% Freshwater Fish 700 46 70% Source- Based on Kumar et.al 2000
  • 21. BIODIVERSITY CONVENSIONS  The first convention on biodiversity organized at Rio De Janerio, capital of Brazil from June 5 to 16, 1992 named as United Nation Conference On Environment and Development (UNCED), batter known as Rio Summit to maintain ecological balance and enrich biodiversity. The agreement on biodiversity signed by 150 countries including three programmes-  To ensure conservation of biodiversity  Sustainable use of biodiversity  Rational and equitable share of profit to accrue from use of genetic resources.  The second convention organized at Johannesburg in 2002 called World Summit On Sustainable Development (WSSD) where the Biodiversity and Sustainable Ecosystem Management was the issue.
  • 22. The International Conference held on Biodiversity in Relation to Food & Human Security in a warming planet 15-17 February, 2010 in Chennai. International Conference on Wildlife & Biodiversity Conservation held on 3 to 5 June, 2010 at Dal lake, Srinagar, Kashmir. Indian Biodiversity Congress (IBC) & Indian Biodiversity Expo(IBE) will be held on 27-31 December at Thriuvananthapuram, Kerala.
  • 23. CONCLUSION Biodiversity is our life. If the Biodiversity got lost at this rate then in near future, the survival of human being will be threatened. So, it is our moral duty to conserve Biodiversity as well our Environment. Long- term maintenance of species and their management requires co-operative efforts across entire landscapes. Biodiversity should be dealt with at scale of habitats or ecosystems rather than at species level.
  • 24. REFERENCES  Roy Sovan, Environmental Science, Publishing Syndicate , 2003, Kolkata.  Dara.S.S., Environmental chemistry and Pollution Control, S.chand & company Ltd., New Delhi  Schulze Ernst- Detlef, Mooney Harold, Biodiversity and Ecosystem Function, Springer- Verlag, London  Mohapatra Pradipta Kumar, Textbook of Environmental Biotechnology, I.K. International pub. House pvt. Ltd.,2006, New Delhi  Khan. T. I. Global Biodiversity and Environmental Conservation, Pointer Publishers, 2001, Jaipur  www.eolss.net  www.ibc2010.com