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Published byLorin Preston Modified over 9 years ago
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Chapter 55: Conservation Biology & Restoration Ecology 1.What is conservation biology? -The integration of all aspects of biology to conserve biological diversity at all levels -Ecology, physiology, molecular biology, genetics & evolutionary biology 2.What is restoration ecology? -Applies ecological principles to return humanly disturbed ecosystems back to their natural state 3.What is biodiversity? -Biological diversity -3 levels -Genetic diversity -Genetic variation within a population & genetic variation between populations -Species diversity -The variety of species in an ecosystem or throughout the biosphere -Threatened species – species likely to be considered endangered in the foreseeable future -Endangered species – species in danger of becoming extinct within their range -Ecosystem diversity -The variety of biosphere’s ecosystems -Extinction of 1 species can impact its community & ecosystem
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Figure 55.2 Three levels of biodiversity Genetic diversity in a vole population Species diversity in a coastal redwood ecosystem Community and ecosystem diversity across the landscape of an entire region
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Chapter 55: Conservation Biology & Restoration Ecology 1.What is conservation biology? 2.What is restoration ecology? 3.What is biodiversity? 4.What things are threatening biodiversity? -Habitat loss -Introduced species -Overexploitation
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Figure 55.1 Tropical deforestation in West Kalimantan, Borneo Habitat loss
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Figure 55.6 Two introduced species (a) Brown tree snake, intro- duced to Guam in cargo (b) Introduced kudzu thriving in South Carolina
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Figure 55.7 Overexploitation North Atlantic bluefin tuna
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Chapter 55: Conservation Biology & Restoration Ecology 1.What is conservation biology? 2.What is restoration ecology? 3.What is biodiversity? 4.What things are threatening biodiversity? 5.What’s the difference between fragmentation, an edge, and a corridor? -Fragmentation – division of natural habitat -Edge – boundary between ecosystems – species rich -Corridor – movement strip that connects habitats
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Figure 55.16 An artificial corridor
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