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Living Resources
Life Science Chapter 23
Term | Definition |
---|---|
renewable resource | Always available or able to make more in reasonable time. -Sun,Wind,H2O,Trees |
non renewable resource | Resource that cannot be renewed in reasonable time. EX-Fossil fuel-Oil,Gas,Coal |
pollution | Contamination of Land,Air,H2O. -Chemicals,Non biodegradable Trash,Light,Sound |
environmental science | The study of the natural processes in the environment and how humans impact it. |
clear cutting | Cut down all trees in one area all at the same time. -Quick -Safer -Cheap |
selective cutting | Pick trees to be removed and leave behind a variety of species of different sizes. -Less damaging |
sustainable yield | The amount of the resources you can remove W/O damaging future generations. |
fisheries | An area which contains a variety of valuable ocean resources NOT UNLIMITED supply. - 70% of worlds fisheries are over fished. |
overfishing | Removing fish from ocean faster than they can reproduce. |
aquaculture | Sea Farming - Raising fish in artificial pound or bay for food sources. - Can disease wild population |
biodiversity | A variety of different species in a given area. |
keystone species | A species that provides a food source for many other species. |
most diverse ecosystem in the world | tropical rain forests |
second most diverse ecosystem in the world | coral reefs |
endangered species | species in danger of becoming extinct in the near future |
threatened species | species that could become endangered in the near future |
poaching | the illegal killing or removing of wildlife from their habitats |
extinct | the disappearance of all members of a species from Earth |
habitat fragmentation | breaking larger habitats into smaller isolated pieces or fragments |
niche diversity | The diversity of functions an organism can hold in its environment, and the diversity of habitats in which it can live. |