Transcript Document
Forests, Fisheries, and Biodiversity Gaiser Life Science 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) 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 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 Page # This PowerPoint was created by Tim Paterek from Charlene Shea’s lecture notes. All pictures came from Google Image Search. To fall within the Fair Use Guidelines, this PowerPoint must be used within the confines of the classroom and may not be published back onto the Internet unless the pictures are removed.