Transcript forests, bodies of water renewable resource

Forests, Fisheries, and
Biodiversity
12/07/2012
pgs. 67-68
LT: I will be able to explain what
causes changes in species
populations.
Know
How can we conserve natural resources?
“I don’t know anything.” is not an acceptable answer.
Use complete sentences.
Evidence
After listening to the PowerPoint lecture, come back here and list evidence
to explain why your answer to the above question is or is not a good
answer. You may also use other outside sources to help you respond.
Draw before and after pictures of clear cutting and selective cutting.
Page #
Clarifying ?s
resource
Forests, Fisheries, and Biodiversity
Information
renewable
resource
- something that contains valuable materials
Example: forests, bodies of water
- a resource that is replenished for future use
Example: reforestation
clearcutting
- cutting down all trees in a given area
Selective
cutting
- cut down some trees while leaving a mix of tree species standing
sustainable yield
- the amount of the resource that can be harvested without reducing
the future supply
Sustainable wood?
Certified lumber - labeled as sustainable – wood is replanted as it is
harvested
- an area with a large population of valuable ocean organisms
Sustainable? Limits - amount and size allowed
Methods - type of gear allowed
Aquaculture - fish farms
- number of different species in an area affected by area,
climate, and niche diversity (habitat diversity)
fishery
biodiversity
Page #
Clarifying ?s
Why is this
important?
keystone
species
Healthy
population
extinction
endangered
threatened
causes
Summary:
Forests, Fisheries, and Biodiversity
Information
1. Economic value - resources and ecotourism
2. Ecosystem value - all species are connected
- a species that influences the survival of many other species
in an ecosystem
Example: sea lions affecting salmon runs
in Columbia River
Gene pool diversity (adaptive traits)
- disappearance of all members of a species - this is increasing !
Example: golden toad
- in danger of becoming extinct
Example: Spotted Owl and the lumber industry
- could become endangered
Example: polar bear
FYI: Point Defiance polar bear rehabilitation and repopulation program
1. Habitat loss
2. Poaching
3. Pollution
4. Invasive species
Page #
Clarifying ?s
resource
Forests, Fisheries, and Biodiversity
Information
renewable
resource
- something that contains valuable materials
Example: forests, bodies of water
- a resource that is replenished for future use
Example: reforestation
clearcutting
- cutting down all trees in a given area
Selective
cutting
- cut down some trees while leaving a mix of tree species standing
sustainable yield
- the amount of the resource that can be harvested without reducing
the future supply
Certified lumber - labeled as sustainable
Sustainable wood?
fishery
biodiversity
- an area with a large population of valuable ocean organisms
Sustainable? Limits - amount and size allowed
Methods - type of gear allowed
Aquaculture - fish farms
- number of different species in an area affected by area,
climate, and niche diversity (habitat diversity)
Clarifying ?s
Why is this
important?
keystone
species
Healthy
population
extinction
endangered
threatened
causes
Summary:
Forests, Fisheries, and Biodiversity
Information
1. Economic value - resources and ecotourism
2. Ecosystem value - all species are connected
- a species that influences the survival of many other species
in an ecosystem
Example: sea otter
Gene pool diversity (adaptive traits)
- disappearance of all members of a species - this is increasing !
Example: golden toad
- in danger of becoming extinct
Example: Siberian tiger
- could become endangered
Example: polar bear
1. Habitat loss 2. Poaching 3. Pollution 4. Invasive species
This PowerPoint was created by Tim Paterek from Charlene Shea’s lecture
notes. All pictures came from Google Image Search..