Human impact on wildlife habitat

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Human impact on wildlife habitat

  1. 1. Human Impact on Wildlife Habitat
  2. 2. Habitat Destruction• Construction• Agriculture• Mining• Timber Harvest• Pollution
  3. 3. Encroachment• The sprawl of human living space places pressure on wildlife habitat• 2 million acres of farmland is developed every year• Farmland in light production makes excellent wildlife habitat• Intensive agriculture allows for less habitat
  4. 4. Fragments• When wildlife habitats are broken into small pieces and separated from each other• Creates population problems• No immigration or emigration• Reduced reproductive pool• Decreased species diversity• The biggest wildlife habitat problem in Fauquier County
  5. 5. Arrangement• Fragments• Corridors
  6. 6. Wetlands• Viewed as wasteland for centuries• Extremely productive wildlife habitat• Many drained and filled for development• ½ of all wetlands have been lost
  7. 7. Benefits of Wetlands• Wildlife habitat• Slow destructive power of floods and storms• Purify polluted waters• Provide recreational opportunities
  8. 8. Wetland Preservation• Duck stamps must be purchased by duck hunters• Money is used to buy or lease wetlands• State and Federal Laws prohibit alteration of wetlands
  9. 9. Forests• East coast of the US was nearly completely forested before colonists arrived• Land was cleared for development and agriculture• Many species were impacted – Especially Deer and Turkey• It takes 100s of years to completely regenerate forests• Need careful management to allow for harvest and protect habitat
  10. 10. Habitat Alterations that Benefit Wildlife• Agriculture residues provide food for wildlife• Ground birds and small mammals benefit from grassland habitats• They provide food for predators• Field corners that ate not mowed or plowed provide cover• Clearing forest tracts allows for diverse wildlife populations

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