Early Detection Program

Time and resources are limited, therefore, it is important that SLELO-PRISM partners focus the management of invasive species on sites that are considered ecologically important and/or sites that are considered to have conservation value. In addition, sites that are considered to be seed banks, vectors, or that pose a proximity threat to high-value sites are all factors involved in determining site-based management on both public and private lands. The SLELO partnership has named these sites as Priority Conservation Areas or PCA’s.

We are currently conducting work across 24 PCA’s. The PCA’s are then further divided into Highly Probable Areas (HPA’s).

HPAs include those areas where human activities or site conditions increase the probability of an invasive species becoming established. Conditions and activities at these HPAs may facilitate invasion in several ways, like human movement through the area, disturbances caused by concentrated human activities, and site conditions. Some examples for HPAs in aquatic areas include boat launches, fishing access sites, and coves with shallow slow-moving waters. HPAs in terrestrial areas include trailheads, parking areas, campgrounds, and disturbed areas from logging or other events.


Priority Conservation Areas

Below you will find an update for each PCA we are currently working in based on the field reports that have been conducted in these areas since 2013. There are additional species that we have focused our survey and treatment efforts on, which are also reported here. Additional details from field reports and other management efforts can be found on individual  pages.


  • No New T12 – no new Tier 1 or Tier 2 species found during field survey
  • Management Underway – Efforts being conducted to manage species at site
  • New Site – New PCA added, no HPAs or surveys completed yet
  • Partner – Currently being monitored by SLELO Partner organization
Species-Specific EffortsMost Recent Field Survey conducted by SLELO PRISMStatus*
Giant Hogweed2019Management Underway
Most Recent Field Survey conducted by SLELO PRISM
Black Lake2020 Field Report No New T12
Black River New Site
Chaumont Barrens2020 SLELO PRISM ED Program ReportNew Site
Chaumont Bay2020 SLELO PRISM ED Program ReportNo New T12
Guffin Bay2019Management Underway
Delta Lake 2017 Field ReportManagement Underway
Fish Creek WMA2019 Field ReportNo New T12
French Creek2019 Field ReportNo New T12
Kasoag Lake; West branch of Fish Creek2016 Field ReportManagement Underway
ELOS: Black Pond2020 SLELO PRISM ED Program ReportNo New T12
ELOS: Deer Creek Marsh WMA2020 SLELO PRISM ED Program ReportPartner
ELOS: El’Dorado Preserve2020 SLELO PRISM ED Program ReportNo New T12
ELOS: Lakeview WMA2020 SLELO PRISM ED Program ReportPartner
ELOS: Sandy Pond2014Partner
Little John WMA2019 Field ReportNo New T12
Mud Bay2016 Field ReportNo New T12
Mud Lake2019 Field ReportNo New T12
Oneida Lake2020 SLELO PRISM ED Program ReportManagement Underway
Three Mile Bay WMA2020 SLELO PRISM ED Program ReportManagement Underway
Perch River WMA2015 Field ReportManagement Underway
Salmon River Estuary2020 SLELO PRISM ED Program ReportNo New T12
Silver Lake Fen2013 Field ReportManagement Underway
Tug Hill Plateau (ISPZ)2018 Field ReportNo New T12
Upper & Lower Lakes WMA2019 Field ReportNo New T12
Whetstone Reservoir2018 Field ReportNo IS Present
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Prevent the introduction of invasive species into the SLELO PRISM.

Rapidly detect new and recent invaders and eliminate all individuals within a specific area.

Share resources, including funding personnel, equipment, information, and expertise.

Collect, utilize, and share information regarding surveys, infestations, control methods, monitoring, and research.

Control invasive species infestations by using best management practices, methods and techniques to include: ERADICATION (which is to eliminate all individuals and the seed bank from an area), CONTAINMENT (which is reducing the spread of established infestations from entering an uninfested area) and SUPPRESSION which is to reduce the density but not necessarily the total infested area.

Develop and implement effective restoration methods for areas that have been degraded by invasive species and where suppression or control has taken place.

Increase public awareness and understanding of invasive species.

Develop and implement innovative technologies that help us to better understand, visualize, alleviate or manage invasive species and their impacts or that serve to strengthen ecosystem function and/or processes.

Rob Williams rwilliams@tnc.org 
PRISM Coordinator

Megan Pistolese megan.pistolese@tnc.org 
Outreach and Education

Brittney Rogers brittney.rogers@tnc.org 
Aquatic Invasive Species

Robert Smith robert.l.smith@tnc.org 
Terrestrial Invasive Species

Zachary Simek zachary.simek@TNC.ORG Conservation and GIS Analyst

During this time the best way to contact our team is via email.