Environmental Services

Environmental Services - Geospatial Analysis - Versar, Inc.

Invasive Species

Invasive species are a major cause of habitat degradation and threaten our native flora and fauna. While many non-native species are benign, a small percentage cause great harm to the environment, economy, and human health. Invasive plants alone result in $2 to $3 billion dollars in crop loss each year; aquatic invasives clog irrigation canals and pipes that supply water to power plants and factories; and invasive insects and plants can distress and disable humans through stings and allergies. The control of problem invasive species is thus a primary natural resources management issue for federal, state, local, and private land stewards.

Versar is a regional leader in surveying and managing invasive plant species populations. Our services include:

  • Mapping
  • Management plans
  • Educational materials
  • Eradication and control treatments
  • Coordinating volunteer clean up efforts

Versar uses integrated mapping techniques based on global positioning systems, geographic information system, and aerial photo-interpretation to develop comprehensive invasive species management plans that provide site-specific recommendations and cost analysis to meet our clients' land management goals.

Recently, Versar prepared an Invasive Species Management Plan for Naval Air Station (NAS) Patuxent River that identified and mapped invasive plant infestations, developed site-specific management prescriptions, and conducted treatments for the control of invasive plant species in designated areas Versar has also conducted invasive species mapping and developed management plans for the following Department of Defense and other federal facilities:

  • NAES Lakehurst, NJ
  • NAS Patuxent River, MD
  • NAS Patuxent River Webster Field Annex, MD
  • NRC Solomons, MD
  • NSA Fort Meade, MD
  • GBCI, VA
  • DHS Mount Weather, VA
  • NRL Midway Research Center, VA
  • NASA Wallops Flight Facility, VA
  • Langley AFB, VA
  • NAS Oceana, VA
  • NWS Yorktown, VA
  • Naval Amphibious Base Little Creek, VA
  • Fort Lee, VA
  • Fort Eustis and Fort Story, VA
  • NAS Oceana Dam Neck Annex, VA
  • NIOC Sugar Grove, WV
  • Raven Rock Mountain Complex, PA
  • MCB Camp Lejeune, NC
  • MCAS Cherry Point, NC
  • Francis Marion National Forest, SC
  • Selfridge and Alpena, MI
  • Buckley AFB, CO
  • Beale AFB, CA

Versar has been the prime contractor for the US Maritime Administration (MARAD) on nonindigenous species transfer issues associated with the decommissioning of National Defense Reserve Fleet vessels. Decommissioned vessels pose a high risk of hull-mediated species invasions because their underwater surfaces can be heavily fouled by aquatic organisms, and many of the vessels have a long residence time at destination ports before they are dismantled. Versar has worked with MARAD to examine the biota associated with the underwater surfaces of Reserve Fleet vessels to evaluate the potential for non-indigenous species transfers; examine species biogeographic distributions and invasion status; and assess the effectiveness of in-water hull cleaning and alternative hull management options.