Diversity for sustenance

1. DIVERSITY FOR
SUSTENANCE

2. ECOSYSTEM
The natural surrounding in
which an organism live is called
habitat . The biotic and abiotic
factors in the surrounding and
their mutual relationship together
form the ecosystem

3. DIFFERENT TYPES OF
ECOSYSTEM
 Forest ecosystem
 Ocean ecosystem
 Desert ecosystem
 Grassland ecosystem
 Tundra
 Wetland ecosystem

4. FOREST ECOSYSTEM

5. OCEAN ECOSYSTEM

6. DESERT ECOSYSTEM

7. GRASSLAND ECOSYSTEM

8. TUNDRA

9. WETLAND ECOSYSTEM

10.  Forest ecosystem :- Wild animals
 Ocean ecosystem :- Fish, star fish,
Whales, Shark.
 Desert ecosystem :- Camel, cactus plant
 Grassland ecosystem :- Grass hopper,
caterpillar, ant
 Tundra :- Polar bear, Yak
 Wetland ecosystem :- Algae, Turtles,
Snail, Microorganisms

11. FILL IN THE BLANKS
 Forest ecosystem - ........................
 Ocean ecosystem - .......................
 ............................... - catus plant, camel
 ................................ - algae, microorganisms
 Tundra - ...................................
 ............................... - Grass, herbs, grasshopper

12. BIODIVERSITY
Biodiversity includes all the diverse
organisms that inhabit the earth along
with their ecosystems.
Biodiversity includes various levels like
Ecosystem diversity,
Species diversity and
Genetic diversity.

13. This term biodiversity which
denotes the richness of the
biosphere was first used by a
British environmentalist,
Walter. G. Rosen in 1985.

14.  Are all ecosystems alike in biodiversity?
No.
 Are all organisms seen in an ecosystem
also seen in another ecosystem?
Organisms adapted to the conditions of
particular ecosystems. The physical and
chemical structure of each ecosystem is
different. So organisms seen in one
ecosystem may not be present in another
ecosystem.

15.  What is the need for protecting natural
ecosystems?
Natural ecosystem are to be conserved
for the existence and conservation of
organisms. Ecosystems are the treasure
houses of biodiversity. They provide
innumerable services. Essential services,
Ecological services, supporting services,
and cultural services.

16. SERVICES PROVIDED BY BIODIVERSITY
 Availability of essential
materials
 Cultural Services
 Ecological Services
 Auxiliary Services

17. AVAILABILITY OF ESSENTIAL
MATERIALS
 Food
 Medicine
 Fuels
 Construction materials

18. CULTURAL SERVICES
 Aesthetics
 Recreation
 Study
 Rituals and their practice

19. ECOLOGICAL SERVICES
 Soil formation
 Prevention of soil erosion
 O2 - CO2 balance
 Availability of fresh water
 Control of flood
 Climate control

20. AUXILIARY SERVICES
 Nutrient cycling
 Pollination
 Biological control
 Seed dispersal

21. BIODIVERSITY DEPLETION

22. BIODIVERSITY DEPLETION
Reduction or loss of plant
or animal species are called
biodiversity depletion

23. CAUSES OF BIODIVERSITY DEPLETION
 Agriculture
 Dam construction
 Mining
 Tourism
 Hunting
 Exploitation of forest wealth
 Large scale destruction of ecosystem
 Over exploitation of natural resources
 Excessive use of chemicals in agricultural
field

25. LOSS LINKS
Dodo, a kind of flightless bird,
was common
in the island of
Mauritius.

26. Passenger pigeons which
flew in lakhs along
the North American
skies

27.  Quagga, a wild zebra
variety from the
southern part of
Africa

29. IUCN
IUCN (International Union for
Conservation of Nature) is an
organization for environmental
protection, operating in
different countries.

30. RED DATA BOOK
Under the auspices of IUCN, a list of
endangered plants and animals is
prepared every year. This is known as
the Red Data Book.
The information in the Red Data Book
is helpful to identify the extent of
biodiversity depletion and to plan out
appropriate conservation activities.

31. Use Protect
Know
Biodiversity