Endangered Species

1
Endangered Species
Chloe Choy Priscilla Fung Stella Yiu Kiki Lee
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

• ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

Chloe Choy Priscilla Fung Stella Yiu Kiki Lee
Chloe Choy
2
Quiz time!
3
What is a habitat?

• A place where a particular animal travels in
  search of food.
• A place where an animal is sent to get rid of a
  bad habit.
• The location where a particular animal lives and
  its surroundings which includes environmental
  conditions such as air, water, temperature, the
  land
• The location where a particular person likes to
  shop.

4
What is the difference between an animal being
threatened and endangered?

• threatened animals are likely to die sooner than
  endangered animals.
• Threatened animals are likely to become
  endangered in the near future, endangered animals
  are likely to become extinct in the near future.
• Threatened animals are scared, endangered animals
  are angry
• Threatened animals are usually younger than
  endangered animals.

5
Why save endangered species?

• It is very cool to have an endangered animal as a
  pet
• All animals and plants hold a certain musical,
  artistic, and athletic value. Every single living
  thing should never interact with its
  surroundings.
• If all species died there would be nothing left
  to eat.
• All animals and plants hold a certain medicinal,
  agricultural, ecological, commercial and
  recreational value. Every single living thing
  interacts with its surroundings.

6
Which is the world's most comprehensive inventory
of the global conservation status of plant and
animal species?

• IUCN Red list
• IUCN Black list
• IUCN Blue list
• IUCN White list

7
Endangered species?

• A species that is in danger of extinction
  throughout all or a significant portion of its
  range

Because it is few in number threatened by
changing environmental or predation parameters
8
(No Transcript)
9
(No Transcript)
10
(No Transcript)
11
(No Transcript)
12
(No Transcript)
13
!

• Alarming Facts
• !!!

14

• rate of species loss is 150 times higher than
  the natural background rate of extinction.

15

• we destroyed 30
• of the natural world between 1970 and 1995

16

• At the current rate of extinction
• the Earth will have lost 25 of its present
  number of species by 2050

17

• Roughly 50,000 species vanish every year

18

• many creatures will forever remain unknown to us,
  for they are disappearing before we get a chance
  even to learn about them.

19
Reasons for extinction

• Natural loss
• Invasive species
• Human factors
• Habitat destruction
• Pollution
• Over-exploitation

20
Invasive species

• take over space and nutrients
• intensified by the destruction of habitats

21
Habitat Destruction

• Deforestation
• Agriculture
• Housing development and human settlements
• Mining
• Water development

22
Pollution

• Indirectly
• chemicals ingested by animals low in the food
  chain
• these chemicals accumulated in food chain
• Until it reaches a dangerous level
• Causes reproductive problems and death

23
Pollution

• directly
• pollutants make water uninhabitable
• e.g. fertilizers and pesticides to reach
  waterways
• e.g. logging, grazing, agriculture, and housing
  development cause silting in waterways
• fresh water mussels

24
Over-exploitation

• especially a threat for species that reproduce
  slowly
• Includes over fishing and hunting

25
Consequences of extinction

• A danger of losing species as a biological entity
• destabilization of an ecosystem
• A danger of having endangerment of other species
• loss of irreplaceable genetic material and
  associated biochemical

26
1. A danger of losing species as a biological
entity

• Irreversible
• Once a particilar species loses, it will never
  occur again

27
2. Destabilization of an ecosystem

• One species go extinct and population will
  increase or decline in the secondary species
• unstable spiral
• ecosystem structure is changed markedly and
  irreversibly

28
3. A danger of facing endangerment of other
species

• Relations between organisms are very complex and
  interdependent
• One type of species will affect the whole food
  chain

29
4. Loss of irreplaceable genetic material and
associated biochemicals

• Each species carries unique genetic material in
  its DNA and may produce unique chemicals
  according to these genetic instructions
• Examples
• - a fernlike weed called sweet wormwood found
  in the valleys in Central China

30

• Solutions?

31
International Efforts

• Wild Bird Conservation Act of 1998
• Endangered Species Act
• Marine Mammal Protection Act

32
International efforts

• World Wide Fund for Nature!

33
WWFs recent attempts

• 06 Feb 2007
• South African abalone to come under international
  trade controls
• 02 Feb 2007Rare hyena spotted in Turkmenistan

34
International efforts

• Green Peace!

35
Green Peace

• Go to
• www.greenpeace.org
• to save the whales!

36
(No Transcript)
37
Hong Kong s effort

• Chinese White Dolphins
• Marine Park ( around Sha Chau and Lung Kwu Chau )
• deploys artificial reefs
• comprehensive conservation program for the
  Chinese White Dolphins
• conservation organization (WWF)

38
Constraints?

• still traversed by many types of vessels
• traffic has increased significantly

39
(No Transcript)
40
Chinas Role

• conservation organization (WWF)
• 50 panda reserves

41
Individuals effort

• Conserve Habitats
• national parks, nature reserves or wilderness
  areas
• When you visit a national park, make sure you
  obey the wildlife code
• encourage friends to keep patches of bush as
  wildlife habitats
• removing weeds and planting local native species
  in your place

42
Individuals effort

• Make space for wildlife
• Plant a tree in the backyard
• Start composting in garden eliminates need for
  chemical fertilizers
• Not to use harmful chemicals at home

43
Individual efforts

• Join An Organization
• Join an organization in your area and start
  helping today!

44
Individual efforts

• Voice out yourselves
• tell family members and friends about the
  endangered species and what they can do
• write articles to newspapers
• Ring up radio programs

45
Constraints?