• Overstocking and overgrazing
  
  
• Suppression of natural fire regimes
  
  
• Plowing under native sod
  
  
• Harvesting and hauling away above-ground biomass
  
  
• Mining the surface of the land for minerals
  
  
• Covering the land with drilling sites, slug pits, pipe lines, and storage tanks
  
  
• Introduction of foreign species of plants and wildlife
  
  
• Habitat fragmentation
  
  
• Residential and commercial development
  
  

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