• Invasive Species
• About
  • Organizational Chart, Contacts
  • Strategic Plan
• Highlights
• Research
  • Effects of Invasive Species
  • Early Detection and Rapid Assessment of New Invaders
  • Information Management
  • Control and Management
  • Prevention
  • Monitoring and Forecasting
• Search Ecosystems
•  
• Start with Science
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  • Fisheries: Aquatic and Endangered Resources Program
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  • USA National Phenology Network
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USGS Ecosystems Invasive Species Program Effects of Invasive Species

Effects of Invasive Species

The Invasive Species Program determines effects of invasive species and susceptibility of habitats to invasion. As part of their strategic plan, they strive to:

• Research to provide basic understanding of the biology, ecology and population dynamics of invasive species, including studies to determine species' environmental requirements and tolerances.
• Research on how and why nonindigenous species become invasive including biotic and abiotic factors influencing the lag time between introduction and invasion.
• Research on interacting factors (e.g., fire, erosion and deposition processes, atmospheric and climatological stresses, chemical pollution, land use changes, and management practices) that facilitate invasion of a particular species or taxonomic group in U.S. ecosystems.
• Research on factors influencing species invasiveness to facilitate risk assessment and screening of potential new invaders.
• Research to determine the individual and cumulative effects of invasive species on ecosystem processes and native species (Note: invasive species must be the primary factor under study. Research on interacting factors in ecosystem processes should be included in the Ecosystems Program).