Community Ecology and Resources

An ecosystem includes all the biotic (living) and abiotic (abiotic)factors in an environment. An ecosystem includes all the biotic (living) and abiotic (abiotic)factors in an environment.

Resources Renewable resources can be replaced/regrown/replenished after use Replenished by biochemical cycles (non-living) EX: 

Resources Non-renewable resources either can’t be replenished/replaced when used or it takes millions of years Non-renewable resources either can’t be replenished/replaced when used or it takes millions of years EX: EX:

Biodiversity Biodiversity is the sum total of different organisms on Earth or in a specific area. Biodiversity is critical to our survival because it provides us with food, medicines, wood for homes, chemicals, products, etc.

Which area has more biodiversity? Area 1: zebras, elephants, grass, trees, lions, hyenas, giraffes, gazelles, cheetahs, hippos, rhinos. Area 2: trees, grass, lions, elephants, deer, antelope, cheetahs, crocodiles, giraffes

Threats to Biodiversity A.) Extinction is when the last member of a species dies. A.) Extinction is when the last member of a species dies. B.)A species close to extinction is endangered B.)A species close to extinction is endangered

Threats to Biodiversity (continued) C.) Introducing non-native species. Humans regularly move plants/animals to new places where they grow, reproduce beyond control, using resources in the area, causing native plants/animals t0 die off.