Transcript PowerPoint 簡報 - CNEC Christian College

Environmental Education
Endangered Species
Content
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What is meant by “endangerment of species”?
How many species are endangered today?
What are the causes of endangerment?
Why do we need to save the endangered
species?
What should be done to solve the problem?
Endangerment of Species
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more than 1,000 animal species are
endangered worldwide today.
Extinct:
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a species is extinct when there is no reasonable
doubt that the last individual has died.
Critically endangered, endangered and
vulnerable:
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species which face high risk of extinction in wild in
the near future, with decreasing risk level from
critically endangered to vulnerable.
Factors affecting Risk Level
of Endangerment
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Population size of the species,
Size of habitats,
Number of mature individuals,
Examples of Endangered
Species
Causes of Endangerment
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Destruction of habitats
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Pollution
Deforestation
Urbanization
Disease and limited distribution
Introduction of exotic species
Over-exploitation and illegal hunting
Over-exploitation
In order to get timber for
paper, furniture and building
materials, a lot of trees are
cut down. This destroys the
woodland habitat.
Hunting
Hunting
Why do we need to save
endangered species?
[1]
Humans depend on ecosystems.
The nature provides us water
and air.
Why do we need to save
endangered species?
[2]
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Ecosystem will become unstable
Loss of valuable natural resources
Loss of employment
Species have rights to survive
What should be done?
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Pollution control
Reduce the use / recycle natural resources
Ban or restrict activities that cause harm to
the nature, e.g. hunting
Act of Endangered Species
Discussion
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If dinosaurs were still alive in the world, should
we conserve them?
For endangered species that threaten our life,
should we conserve them? How to judge, decide
and make a balance?
“Human is selfish for exploiting the life of so
many species”, do you agree?
Discussion
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Keeping animals in zoo is one way to protect
and keep valuable species. What are its
advantages and disadvantages?
Traditional Chinese Medicine (TCM) uses body
parts of animals to cure illnesses. How do you
feel? What could be done?
If the protection of endangered species will
cause unemployment and hardship of the people
in the developing country, what should be done?
Relevant Websites
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[1]
Endangered Species Program, U.S. Fish & wildlife
Service (http://endangered.fws.gov)
Convention on International Trade in Endangered
Species of Wild Fauna and Flora – CITES
(http://www.cites.org)
Endangered Species on EE-Link Endangered Species
(http://eelink.net/EndSpp)
A SeaWorld Education Department Resource
(http://www.seaworld.org)
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Endangered Species
(http://www.seaworld.org/endangered_species/escont.html)
Relevant Websites
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Agriculture, Fisheries and Conservation Department
(http://www.afcd.gov.hk)
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[2]
Conservation
(http://www.afcd.gov.hk/con_new/chinese/homepage.htm)
Example of endangered species that could be used in
Traditional Chinese Medicines
(http://www.afcd.gov.hk/web/chinese/conservation/co
nserv/annex3.htm)
Examples of plant species included in the Animals and
Plants (Protection of Endangered Species) Ordinance
(http://www.afcd.gov.hk/web/chinese/conservation/co
nserv/annex4.htm)