Biodiversity

1
Lesson 18
Ecology Biodiversity
2
Objectives S.W.B.A.T.

• Define biodiversity and explain its value.
• Identify current threats to biodiversity.
• Describe how biodiversity can be preserved.

3
Biodiversity Who cares about biodiversity?
4
Which do you like better?
AIM Who cares about biodiversity?
B
A
5
Which do you like better?
AIM Who cares about biodiversity?
B
A
6
Which do you like better?
AIM Who cares about biodiversity?
7
Which do you like better?
8
AIM Who cares about biodiversity?
Which do you like better?
9
Which do you like better?
AIM Who cares about biodiversity?
B
A
10
Which do you like better?
AIM Who cares about biodiversity?
11
What do you think biodiversity means?
AIM Who cares about biodiversity?
12
AIM Who cares about biodiversity?
Biodiversity
What does Bio mean?
Life
Bio
13
AIM Who cares about biodiversity?
Biodiversity
What does Diversity mean?
Diversity Variety
14
AIM Who cares about biodiversity?

• Biodiversity is the variety of life on Earth and
  the essential interdependence of all living
  things

• Scientists have identified more than 2 million
  species. Tens of millions -- remain unknown
• The tremendous variety of life on Earth is made
  possible by complex interactions among all living
  things including microscopic species like algae
  and mites.

15
There are 3 components of biodiversity
AIM Who cares about biodiversity?

1. Diversity of genesChihuahuas, beagles, and
   rottweilers are all dogsbut they're not the same
   because their genes are different.

Beagle
Chihuahua
Rottweilers
16
AIM Who cares about biodiversity?
There are 3 components of biodiversity
Diversity of speciesFor example, monkeys,
dragonflies, and meadow beauties are all
different species.
Golden Skimmer
Meadow Beauty
Saki Monkey
17
AIM Who cares about biodiversity?
There are 3 components of biodiversity
Variety of ecosystemsPrairies, Ponds, and
tropical rain forests are all ecosystems. Each
one is different, with its own set of species
living in it.
Paines Prairie
Florida Sand hill Pond
Hoh Rain Forest
18
Which is more diverse?
AIM Who cares about biodiversity?
B
A
19
Which is more diverse?
AIM Who cares about biodiversity?
B
A
20
Which is more diverse?
AIM Who cares about biodiversity?
21
AIM Who cares about biodiversity?
Which is more diverse?
22
AIM Who cares about biodiversity?
Which has more cultural diversity?
B
A
23
AIM Who cares about biodiversity?
Which has more biodiversity?
A
B
24
Which has more biodiversity?
AIM Who cares about biodiversity?
A
B
25
AIM Who cares about biodiversity?
Biodiversity has Intrinsic Value
Intrinsic Value Something that has value
in and of itself
26
Biodiversity also has utilitarian Value
AIM Who cares about biodiversity?

• Utilitarian Value the value something has as a
  means to anothers end.

• Utilitarian values include
• Goods
• Services
• Information

27
What do we get from biodiversity?
AIM Who cares about biodiversity?

• Oxygen
• Food
• Clean Water
• Medicine
• Aesthetics
• Ideas

28
Should we be concerned about biodiversity?
AIM Who cares about biodiversity?

• What we know The Earth is losing species at an
  alarming rate
• Some scientists estimate that as many as 3
  species per hour are going extinct and 20,000
  extinctions occur each year.
• when species of plants and animals go extinct,
  many other species are affected.

29
Threats to biodiversity
AIM Who cares about biodiversity?
What do you think can change the biodiversity
that the world has?

• Habitat destruction
• Pollution
• Species Introductions
• Global Climate Change
• Exploitation

That will be next lesson
30
AIM Who cares about biodiversity?

• Assignment
• Select two countries in the world and research
  the biodiversity of that country.
• List the different
• Fauna / Animals
• Flora / Plants
• For which that country is known.
• Example
• Australia Fauna Kangaroo, Koala,
• Flora Eucalyptus