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Human Impact On The Biosphere`. Human Impact  The human population is increasing at a rapid rate  This can cause other species to go extinct  Other.

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Presentation on theme: "Human Impact On The Biosphere`. Human Impact  The human population is increasing at a rapid rate  This can cause other species to go extinct  Other."— Presentation transcript:

1 Human Impact On The Biosphere`

2 Human Impact  The human population is increasing at a rapid rate  This can cause other species to go extinct  Other species are disappearing 1000X faster than they ever have  Humans deplete resources

3 Habitat Loss  1970’s-1980’s Amazonian rain forests were cleared to create farmland.  Land became worthless because rain forest soil has little use  Clearing land erased habitats  Coral Reefs-Disease and changes in water temperature can kill coral

4 Habitat Degradation  Habitat degradation is damage to a habitat by pollution  Acid Precipitation  Ozone Depletion  Water Pollution  Land Pollution  As human population increases we must destroy ecosystems to build homes, buildings, factories, etc. Damages biodiversity

5 Hunting  Unregulated hunting can lead to extinction  American Buffalo were nearly hunted to extinction in the 1800’s  Due to newly passed laws they have not been hunted and have now grown to almost 200,000  Poaching-Illegal hunting

6 Habitat Fragmentation  Separation of wilderness areas from other wilderness areas  Effects:  Increased extinction  Disruption of ecological processes  Biodiversity is decreased

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8 Endangered Species in NC  1 out of every 5 species in North Carolina is either threatened or endangered  Habitat Loss- People begin to build on undeveloped areas which kills habitats

9 Endangered Species in NC  Reptiles-Loggerhead Sea Turtle  Mammals-North Carolina Flying Squirrel  Insects-Spruce-Fir Moss Spider  Birds-Red-Cockaded Woodpecker

10 Human Needs  It is important to preserve biodiversity but human needs can’t be ignored  In developed countries protecting biodiversity often comes into conflict with people’s jobs  Delicate balance between economy and the environment


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