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STAS 111- Biodiversity and Healthy Society

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https://www.projectaware.org/news/united-biodiversity-together-againstplastic-pollution
Biodiversity
Variety
BIODIVERSITY IS THE VARIETY OF LIFE
ON EARTH AND THE ESSENTIAL
INTERDEPENDENCE OF ALL LIVING
THINGS.
Scientists have identified more
than 1.4 million species. Tens of
millions -- remain unknown
(www.thecatalogueoflife.org)
•
Importance of Biodiversity
It supports healthy ecosystems.
 It is an essential part of the solution to climate
change
.It is good for the economy.
 It is an integral part of culture and identity.
 It provides raw materials like lumber, food,
medicine etc.

Source: Shaw , Julie. “Why is biodiv ersity important?”. Nov. 15,2018. https://www.conservation.org.
What do we get from
biodiversity?
Oxygen
Food
Clean Water
Medicine
Aesthetics
Ideas
There are 3 Types of Biodiversity
1.
Species diversity
https://www.qsstudy.com/geology/speciesdiversity
2. Genetic diversity- refers to the variations
among the genetic resources of the
organisms.
https://www.youtube.com/watch?v=EKG89O05K5A
3. Ecological Diversity-
Source: What is biodiversity?- Definition, Types and Importance. https://byjus.com
ECOSYSTEM
“ A self-contained community of
microorganisms, animals and plants, that
interact with each other and with their physical
environment.”
Eg. a rock
pool
Within an ecosystem there can
be many HABITATS- a place in which a
particular species of organism lives.

https://en.wikipedia.org/wiki/Habitat
e.g. Coral reef
eg Arctic Canada is the
habitat of the polar bear.

eg species of fish like Pike (Esox lucius) are found
in freshwater lakes and ponds.
Threats to biodiversity
Habitat destruction
Pollution
Species Introductions
Global Climate Change
Exploitation
THE GREATEST THREAT
List of Extinct Animals of the
Philippines
1. Elephas sp.
2. Elephas maximus
3. Stegodon luzonensis
4. Panthera tigris sp.
5. Rhinoceros philippinensis
6. Sus cebifrons cebifrons
7. Bubalus cebuensis
8. Megalochelys sondaari
9. Bubalus sondaari
10. Cuon alpinus
Source:https://en.wikipedia.org/wiki/List_of
_extinct_animals_of_the_Philippines
Extinction
refers to the termination of a species caused
by habitat destruction, introduction of nonnative species, over-exploitation, pollution
or even climate change.
https://www.extinctanimals.org/
ENDANGERED VS
THREATENED
/Threatened: population low but extinction less
imminent
Endangered: nos so low that extinction imminent
BIODIVERSITY
RATES OF DEFORESTATION
1981-1990:
• 0.9%/year
• 53,000 sq. mi./year
• 21,000 sq. mi. in
South America (Amz)
= area of NC
• By 1988, +/- 10% of
the Amazon had been
cut down
• Due to isolation of
fragments and in
forest/clearing
boundaries = 16%
affected by deforestation
http://www.rainforestweb.org/
References
• https://www.projectaware.org/news/united-biodiversity-togetheragainst-plastic-pollution
• http://www.rainforestweb.org/
• https://www.extinctanimals.org/
• https://en.wikipedia.org/wiki/List_of_extinct_animals_of_the_Phili
ppines
• https://en.wikipedia.org/wiki/Habitat
• https://www.youtube.com/watch?v=EKG89O05K5A
• Shaw, Julie. “Why is biodiversity important?”. Nov. 15,2018.
https://www.conservation.org.
• https://www.qsstudy.com/geology/species-diversity
• What is biodiversity?- Definition, Types and Importance.
https://byjus.com
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