This document discusses biodiversity and its importance. It defines biodiversity as the variety of life, including all animals, plants, and the habitats and communities they form. It explains that habitats are places where plants and animals live, and communities are groups of interacting species that live in the same habitat. The document emphasizes that biodiversity is important for food, medicine, resources, ecosystem balance, and human benefits like recreation. However, it notes that natural disasters and human activities like pollution, deforestation, climate change, and overexploitation threaten biodiversity. It suggests ways to protect biodiversity such as creating reserves, controlling invasive species, reducing pollution, and educating people.

2. BIODIVERSITY
BIOLOGICAL + DIVERSITY
Relating to
living
things
Different
varieties
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3. BIODIVERSITY
BIODIVERSITY
•varieties of life
• communities that they form
• habitats in which they live
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4. VARIETIES OF LIFE
BIO=LIFE
ALL ANIMALS
Video-
https://www.youtube.com/watch?v=_rQgoohs3
30
ALL PLANTS
Video-
https://www.youtube.com/watch?v=IYxfz1PSfZ
0
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5. WHAT IS A HABITAT? WHAT IS A COMMUNITY?
Habitat: the place where an animal or plant normally lives. Tigers live in the forest. Polar bears live
in very cold regions. Fish live in water.
Community: the group of plants and animals living in a habitat. In the savannah, zebras and lions
live in the same place. In the forest, tigers and deers live in the same place.
Click on the link below for amazing videos.
1) HTTPS://WWW.DKFINDOUT.COM/UK/VIDEO/ANIMALS-AND-NATURE/ANIMAL-ADAPTATION-VIDEO/
2) DKFINDOUT.COM/UK/ANIMALS-AND-NATURE/HABITATS-AND-ECOSYSTEMS/LAND-HABITATS/
3) HTTPS://WWW.DKFINDOUT.COM/UK/ANIMALS-AND-NATURE/HABITATS-AND-ECOSYSTEMS/CORAL-REEF/
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6. DEMONSTRATE A SIMPLE UNDERSTANDING OF BIODIVERSITY.
• PLEASE REFER TO THE VIDEOS IN SLIDE 5 AND ANSWER THE QUESTIONS.
1. What is a habitat?
2. You are in the desert. What plants and animals you would find there?
3. Case study: Lions live in the savannah in Africa
a) Do you have lions in Mauritius?
b) How do these animals live here?
c) Is it their natural habitat?
4. What is a community of animals?
5. GIve an example of a community of animals in your country?
6. Name the endemic plants and animals in your country.
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7. Explain the importance of biodiversity.
Why is biodiversity important for us?
Food, medicine and resources Balance of ecosystem Socio-economic benefits
This Photo by Unknown Author is licensed under CC BY-NC-ND
This Photo by Unknown
Author is licensed under
CC BY-SA
This Photo by
Unknown Author is
licensed under CC BY-
SA
This Photo by
Unknown Author is
licensed under CC
BY-SA
1
2 3
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8. FOOD, MEDICINES AND RESOURCES
Why is biodiversity important for us?
This Photo by Unknown Author is licensed under CC BY-SA
This Photo by Unknown Author is licensed
under CC BY-NC-ND
This Photo by Unknown Author is licensed under CC BY-SA
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9. Balance of ecosystem
Why is biodiversity important for us?
This Photo by Unknown Author is licensed under CC BY-NC-ND
Regulate composition
of Oxygen and Carbon
dioxide in the air.
Roots hold soil and
prevent soil erosion.
This Photo by Unknown Author is licensed under CC BY
Fertilizes soil
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10. Socio-economic benefits
Why is biodiversity important for us?
This Photo by Unknown Author is licensed under CC BY-
SA
This Photo by Unknown Author is licensed under CC BY-SA
Recreational activities &
relaxation
Education and Scientific research
Eco-tourism
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11. Recognise that natural calamities such as cyclones and
drought are dangerous for our biodiversity.
CYCLONE
DROUGHT
QUESTIONS
1. Study the three pictures and
describe what you see.
2. What effects will the disasters
have on the people living in
those areas?
This Photo by Unknown Author is licensed under CC BY-SA-NC
This Photo by Unknown Author is licensed under CC BY
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EarthquakeThis Photo by Unknown Author is licensed under CC
BY-SA

12. Human Activities are dangerous for our biodiversity.
•
This Photo by Unknown Author is licensed under CC BY
This Photo by Unknown Author is licensed
under CC BY-SA
This Photo by Unknown Author is licensed under CC BY-SA
Introduction of alien species
that harm.
1
2 3
4
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13. How Human Activities Such As Deforestation/degradation of habitat, are
dangerous for our biodiversity.
• FORESTS ARE
• CLEARED FOR
• 1. TIMBER/PAPER
• 2. DEVELOPMENT
• 3. AGRICULTURE
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This Photo by
Unknown Author
is licensed
under CC BY-NC-
ND
Animals lose their homes
Animals lose their source of
food./Animals die
Less oxygen, more carbon
dioxide/global
warming/pollution
Lose ferns, mushrooms,
fungi,
Danger of Soil erosion

14. How Human Activities Pollution, are dangerous for our biodiversity.
CAUSES POLLUTION
AIR POLLUTION
WATER POLLUTION
NOISE POLLUTION
HEAT
EFFECTS
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Smoke from factories &
vehicles
1.Lungs of animals get affected
2. Global warming/depletion of
ozone layer
3. Acid rain that damage plants
1.Chemicals from factories and
agriculture
2. Human wastes
3. Spilled oil from ships
1.Noise from human activities. 2.Noise from
factories and vehicles
Land gets poisoned.
Plants and animals get
poisoned and may die.
Hurt ear drums
Burning of fuels and human
activities
Global warming

15. Invasive Alien Species are dangerous for our
biodiversity.
• Invasive alien species= Exotic plants and
animals that have been introduced in a
place. These alien invasive plants take all the
place and kill off local plants.
• The alien invasive animals compete with
local animals and eat their food or eat them.
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This Photo by Unknown Author is licensed under CC BY-SA
This Photo by Unknown Author is licensed under CC BY-ND

16. Effects Of Global Warming that are dangerous for our
biodiversity.Temperature of the atmosphere goes up.
What happens?
1. The ice caps melt and the homes of polar animals get
smaller.
a) Polar animals have less food to eat.
b) The numbers of polar animals decrease.
c) They might be extinct.
2. Sea level goes up. The coastline disappears and the
biodiversity also disappears.
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17. Overexploitation Of Animals And Plants that are dangerous
for our biodiversity.
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This Photo by Unknown Author is licensed
under CC BY-SA
This Photo by Unknown Author is licensed under CC BY-SA
This Photo by Unknown Author is licensed
under CC BY-SA
Over fishing-
catching too
many fish
Killing
animals for
their coat
Hunting
animals to
sell as pets
Killing
elephants for
their tusks

18. Discuss ways to reduce the effects of human activities on biodiversity.
CREATE A SPECIAL PLACE FOR ANIMALS AND PLANTS
Create
reserves
Create
botanical
gardens
Breed the
animals in
captivity
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Control invasive
alien plants and
animals
Reduce
pollution
Enforce laws
to protect
endangerd
species
• EDUCATE PEOPLE
WHY WE SHOULD
PROTECT OUR
ENVIRONMENT.

19. REFERENCES
• HTTPS://SOCRATIC.ORG/QUESTIONS/WHAT-IS-THE-COMMUNITY-OF-PLANTS-AND-ANIMALS-LIVING-IN-AN-AREA-CALLED
• HTTPS://WWW.THEBIGGER.COM/BIOLOGY/ORGANISM-AND-ENVIRONMENT/WRITE-A-SHORT-NOTE-ON-THE-BIOTIC-COMMUNITY/
• HTTPS://WWW.MPALALIVE.ORG/CLASSROOM/LESSON/HABITATS-AND-COMMUNITIES-KENYA
•
HTTPS://WWW.GOOGLE.COM/IMGRES?IMGURL=HTTP%3A%2F%2FMAURITIUSCATAMARAN.COM%2FIMAGE%2FCATALOG%2FCRU
ISES%2FILEAUXCERFS%2FILE-AUX-CERFS_03.JPG&IMGREFURL=HTTP%3A%2F%2FMAURITIUSCATAMARAN.COM%2FCRUISE-TO-
ILE-AUX-CERFS-
ISLAND.HTML&TBNID=OH4WGTTLSIP1MM&VET=12AHUKEWJR0LSF3U_OAHUGQBOKHCPMBDAQMYGTEGUIARCRAG..I&DOCID=8E
SM8FCM6A9PHM&W=1148&H=473&Q=ILES%20AUX%20CERFS&VED=2AHUKEWJR0LSF3U_OAHUGQBOKHCPMBDAQMYGTEGUIA
RCRAG
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20. THANK YOU
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