Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Why should we care? Diversity measured on three levels Genetic Species Ecosystem The variation of the DNA in a species How different is one individual from another? The number of species in an ecosystem Scientists use this to measure overall biodiversity The variety of habitats in an area Example: A river delta has fresh water habitat, brackish (fresh and salt) water habitat, and a salt water habitat in one area Population stability Ecosystem stability Natural Resources Variation in genes provides protection against disease Ex: Tasmanian Devils, Jack Russell Terriers More species with redundant niches (another species can take its place on the food chain) Ex: Sea Otters and Sardines High diversity leads to more biomass because they use more resources (light, water, minerals) More: oxygen, food, medicine, beauty, and much more… HIPPO H – Habitat Destruction I – Invasive Species P – Pollution P – Population Growth O – Overconsumption Changing a habitat to suit human needs Ex) Dams destroy salmon habitats Any non-native species that out competes the native species Ex) Himalayan blackberry vs. Washington native blackberry Ex) Kudzu - https://www.youtube.com/watch?v=tiYrqucl2vg Changes a habitat so that animals cannot adapt or live Ex) DDT Ex) Global Warming from burning of fossil fuels More humans means more demand for: Space Food Shelter Fuel Leads to more pollution and habitat destruction Individuals using more than they need to survive USA makes up 5% of world population but produces 33% of CO2