| A | B |
|---|
| renewable resource example | wood |
| sustainable usage | helps conserve biodiversity |
| island ecosystem | most vulnerable to non-native species |
| ecological succession | process of replacing one community with another |
| secondary succession | occurs after a forest fire |
| background extinction | gradual process of species becoming extinct |
| species diversity | number and abundance of species in a community |
| bioremediation | using bacteria to clean up oil spills |
| habitat fragmentation | division of a habitat into smaller pieces of habitat |
| climax community | stable community with little change |
| burning of fossil fuels | causes global warming |
| pioneer species | begin soil development |
| eutrophication | due to fertilizer runoff |
| ecosystem diversity | variety of ecosystems in the biosphere |
| hotspot | area with at least 1500 species that are endemic |
| US and Canada | use most natural resources |
| community | group of interacting populations |
| overexploitation | to kill for money |
| extinction | occurs when the last member of a species dies |
| oil | nonrenewable resource |
| mass extinction | event where lg # of species go extinct in short time |
| White Bark Pine seeds | limiting factor of reproduction of grizzly bear cubs |
| indicator species | organisms that alert us to pollution problems |
| equator | where most extinctions occur |
