BI 211H Study Guide - Final Guide: Mimic Octopus, Symmetry In Biology, Snail Slime
11 Dec 2013
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The 3 levels of biodiversity: genetic diversity. The variation of genes w/in a singular population & among multiple populations: species diversity. Variety of species w/in an ecosystem: ecosystem diversity. Relatively small area with numerous endemic (unique to the area) species. Large numbers of species are endangered or threatened. Both endemic & regular species biodiversity in these areas. Interdisciplinary: bio ecology genetics, resource management, restoration ecology, sociology, economics. Globally 12% birds, 20%mammals, 32% amphibians threatened w/ extinction. Innate connection, appreciation and love for the natural world: ecosystem services. All the processes through which the natural ecosystems & their species sustain life. Moderation of extreme weather events: material goods. Habitat fragmentation: many/few, aggregated/disperse, compact/complex, habitat corridors between gaps help species, area of fragmentation size determines #of species/# population, introduced species. Those that humans move from native locations to new geographic regions. Without native predators, parasites, and pathogens, introduced species may spread rapidly.
