Chapter 11 - Chapter 11, Biodiversity Major Questions: 1....

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Chapter 11, Biodiversity Major Questions: 1. What are the benefits of biodiversity? Are there other reasons to value biodiversity? 5. What are some approaches to addressing biodiversity losses? What is Biodiversity ? Genetic Diversity - Measures variety of different versions of same genes. Species Diversity - Measures number of different kinds of organisms within a community. Ecological Diversity - Measures richness and complexity of a community Species Richness - Total number of species in a community. Species Evenness - Relative abundance of individuals within each species. Species Definition Reproductive Isolation Genetic Species Concept - DNA sequencing Evolutionary Species Concept How many species Currently 1.5 million species identified. Estimates range between 3-50 million. May be 30 million insect species. Invertebrates make up 70% of all known species, and probably most of yet
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This note was uploaded on 11/15/2007 for the course ENVS 1000 taught by Professor Neff,jason during the Fall '07 term at Colorado.

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Chapter 11 - Chapter 11, Biodiversity Major Questions: 1....

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