Educational programs

1. BASIC SCIENCE
STANDARD 8
C S I COLLEGE OF EDUCATION PARASSALA
NATURAL SCIENCE
2020 - 2022

2. BASICSCIENCE
Biodiversity
conservation
2
ACKNOWLEDGEMENT
We would like to commence our list of acknowledgementwith our heartfelt
thanksto God the Almighty, who helped us every step to complete the work
with His strength
This work wasconducted under the guidance of Dr. Saphia L, naturalscience
optionalteacher, CSI College of education parassala. A deep sense of our
heartsfor her sincere guidance, encouragementand supervision.
We are also thankfulto our friendsfor their moralsupport, encouragement
and warm companionship

3. BASICSCIENCE
Biodiversity
conservation
3
TEXTBOOK
DEVELOPMENT TEAM
 Adarsh S Raj
 Arya M L
 Arya S P
 Shyni T
 Ebin R

4. BASICSCIENCE
Biodiversity
conservation
4
CONTENT
BIODIVERSITY CONSERVATION
1.1 BIODIVERSITY
1.2 BIODIVERSITY CONSERVATION
1.3 IN-SITU CONSERVATION
1.4 EX-SITU CONSERVATION

5. BASICSCIENCE
Biodiversity
conservation
5
BIODIVERSITY
CONSERVATION

6. BASICSCIENCE
Biodiversity
conservation
6
There are more than 125million species of living things are seen on
earth. The common man would find it hard to believe that there are
more than 20,000species of ants,3,00,000 species of beetles, 28,000s
species of fishes and 20,000 species of orchids are present on our
earth
Obseve the illustration carefully ,identify and compare the
number of species that are present in our earth
Is this diversity
is importantto
the biosphere ?
Diversity is important to the life
up on the earth because it
maintains ecological balance,
maintain climatic condition,
prevent disasters, boost
ecosystem productivity etc..
Diversity means not only the
richness of species but also the
biological organization ranging
from macromolecules to biomes

7. BASICSCIENCE
Biodiversity
conservation
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 Which species are dominant?
 Which species are less?
1.1
Sales
monera
protista
fungi
plantae
animaliae
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.

8. BASICSCIENCE
Biodiversity
conservation
8
Walter. G. Rosen
 British environmentalist
 first used the term biodiversity
 Biodiversity is the richness of the
biosphere
What is the condition of biodiversity around us? What happen to the
biodiversity?Disscuss the indicators
Indicator
 Is all the organism thatonce existed in your locality still exist?
 Are changes in the agriculturalfield will affectbiodiversity?
Indicators
• Are all ecosystems
alike in biodiversity?
• Species diversity?
• Genetic diversity?

9. BASICSCIENCE
Biodiversity
conservation
9
 Is the changes in the lifestyle may be a reason for biodiversity
depletion?
 Role of human in biodiversity loss
How do you understand the changes in biodiversity
 Through observation
 Bird watching



Now we are aware about the current situation of our biodiversity. What
are the reason for biodiversity depletion and what are the measures we
have to taken to conserve biodiversity .discuss and write it on your
science diary.
Biodiversity rich old days biodiversity today

10. BASICSCIENCE
Biodiversity
conservation
10
Biodiversity tomorrow
Indicators
 What do you mean by conservation of biodiversity?
 Is there any need of protecting organism at the verge of
extinction
 What are the precaution we should adopt to conserve
biodiversity
1.2 BIODIVERSITY CONSERVATION
There are many national and international organisations and legal
systems working for the conservation of biodiversity. The
?

11. BASICSCIENCE
Biodiversity
conservation
11
National Parks
National Parks are designed toprotect
wild lives along with the protection of
historical monuments, natural resource
es and geographicalfeatures of an area.
Eravikulam,SilentValley,
Anamudi Shola, Mathikettan Shola
and Pambadum Shola are the national
parks in Kerala.
government conserves bio-rich areas declaring them as protected
areas.
Two types of conservation methods are prevalent. They are:
 In-situ conservation
 Ex-situ conservation
in-situ conservation method in which organisms are protected in
their natural habitats and ex-situ conservation method in which
organisms are protected outside their natural habitats.
Let us familiarise ourselves with some examples of such
conservationmethods.
1.3 In-situ conservation
Wild Life Sanctuary
These are forest areas declared as protected areas to prevent the
extinction of wild lives by protecting the ecosystem. Peppara,
Periyar, Wayanad etc., are examples of wild
life sanctuaries in Kerala

12. BASICSCIENCE
Biodiversity
conservation
12
Sacred groves
These are small areas of biodiversity
protectedin regions inhabited byhuman
beings. Due to changes in lifestyle many
of these which were highly bio-rich have
been destroyed.Onlya few are remaining
now. Sacred groves play an important
role in the conservation of water in the
region too.
Complete the illustration
Biosphere reserves
Community Reserves
Community reserves are areas protected with the participation of the
public.These are ecologically important places located in populated
areas. TheKadalundi Community Reserve spread over the districts of
MalappuramandKozhikode is an example
These are vast regions designed
with an aim to protect world's
important ecosystems,
biodiversity and genetic resources.
Biosphere reserves like the
Nilgiris and Agasthyarkoodam
include areas belonging to Kerala
too.

13. BASICSCIENCE
Biodiversity
conservation
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1.4 Ex-situ conservation
insitu
conservat
ion
national parks
.
.
biosphere
reserve
.
.
community reserve
.
.
wild life
sanctuary
.
.
Zoological gardens
Zoological gardens are conservation centres
where different varieties of animals are
protected and housed separately and where
necessary arrangements are made
available for their reproduction. They also
function as conservation centres of organisms
which have become extinct in wild. There are
zoological gardens at Thiruvananthapuram
and Thrissur in Kerala.

14. BASICSCIENCE
Biodiversity
conservation
14
Botanical gardens
These are wide research centres where rare
and important plants of diverse species are
protected. We can identify many plants
and get more information about them by
visiting a botanical garden. Jawaharlal
Nehru Tropical Botanical Garden and
Research Institute (JNTBGRI) at
Palode in Thiruvananthapuram and
Malabar BotanicalGarden (MBG) at Olavanna
in Kozhikode are examples
Gene Banks
These are research centres with
facilities to collect seeds and gametes
to preserve them for a long time.
Organisms can be recreated out of
them whenever required. Rajiv
Gandhi Centre for Biotechnology at
Thiruvananthapuram
is an example

15. BASICSCIENCE
Biodiversity
conservation
15
Indicators
 Scope of ex situ conservation
 What is the significance of gene bank
 How wild life sanctuaries differ from zoological parks
Complete the illustration
Biodiversity
In situconservation

16. BASICSCIENCE
Biodiversity
conservation
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Learning outcomes
The learner can
 Understand aboutbiodiversity and need of biodiversity conservation
 Engage in activities related to biodiversity conservation
 Make othersaware aboutbiodiversity conservation
Let us assess
1.Find the odd one out from the following. Justify your answer
a)Zoological gardens,Gene Banks,Community reserve, Botanical
gardens
b) Peppara, Eravikulam, Periyar,Wayanad
2.Examine the statements given below and rewrite if there
are errors.
a) Gene banks are included in in-situ conservation
b) method in which organisms are protected intheir natural habitats
is called ex-situ conservation method
c) National Parks are designed to protect wild lives along with the
protection of historical monuments, natural resources and
geographicalfeatures of an area.





 Zoological garden



17. BASICSCIENCE
Biodiversity
conservation
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Extended activities
 Prepare a poster that emphasize the importance of biodiversity
conservation
 Conduct a awareness programme that emphasis biodiversity and
importance of biodiversity conservation