Download Biodiversity Collections

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

page
1
page
2
page
3
page
4
page
5
page
6
page
7
page
8
page
9
page
10
page
11
page
12
page
13
page
14
page
15
page
16
page
17
page
18
page
19
Document related concepts
no text concepts found
Transcript 
6.3 Biodiversity
Which do you like better?
Circa 1910
A
B
Which do you like better?
Sugar cane
A
B
What do you think
biodiversity means?
Biodiversity
What does “Bio” mean?
Bio =
Biodiversity
What does “Diversity” mean?
Diversity = Variety
-
-
“The variety of life in all
its forms, levels and
combinations”
Includes:
ecosystem diversity, species diversity,
and genetic diversity
There are 3 components of
biodiversity
1.
Diversity of genes
these are all dogs—but they're not the same because
their genes are different.
Chihuahua
Greyhound
Newfoundland
There are 3 components of
biodiversity
Diversity of species.
Hoary Bat
Iwi
Kahuli
There are 3 components of
biodiversity
Variety of ecosystems
Each one is different, with its own set of
species living in it.
Desert
Tropical Rain Forest
Tiaga
Biodiversity has Intrinsic Value
Intrinsic Value
= Something
that has value
in and of itself
Source: Burmbaugh © AMNH-CBC
Biodiversity also has Utilitarian
Value
Utilitarian Value = the value something
has as a means to another’s end.
Utilitarian values include:
• Goods
• Services
• Information
What do we get from
biodiversity?






Oxygen
Food
Clean Water
Medicine
Aesthetics
Ideas
Should we be concerned 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.
Threats to biodiversity
HIPPO Dilemma
Habitat Loss
Introduced Species
Pollution
Population Growth
Over-consumption
Habitat Fragmentation
Biodiversity Hotspots
Quiz:
- Mammals 4,675
9,702
- Birds
23,250
- Fish
751,000
- Insects
- Flowering Plants
- Total # of
species recorded
-
421,968
1,413,000
Estimated Total
# of species in
~10 - 100 million species
the World
Protecting Biodiversity

How can we protect
biodiversity
• Stop overharvesting
 Sustainable yield
 Hunting & fishing
laws
• Protect habitat
 Refuges, parks,
preserves
• Endangered Species
Act
Related documents