Regional/national data from The Nature Conservancy


Directory of \gis\gom\tnc
ActiveRiverArea Folder containing TNC Active River Area data. See PDF in this GIS folder for more information. Layer file in this folder can be used to display data.
Freshwater Network No data downloaded; see site.
Matrix Forest Blocks Matrix sites are large contiguous areas whose size and natural condition allow for the maintenance of ecological processes, viable occurrences of matrix forest communities, embedded large and small patch communities, and embedded species populations. See description on DataBasin. Downloaded 2011.
NEAC Northeast Aquatic Connectivity project. See report, spreadsheet data, Esri layer file and Geodatabase in this folder. Includes Dam data for Maine and the Northeast. Also see Freshwater Network Barrier Prioritization mapper.
NETHM Northeast Terrestrial Wildlife Habitat Map. See details in this folder.
Permeability Landscape permeability (local connectedness and regional flow patterns). See PDF in this folder or TNC website for more info. 2012
Resilience Resilient sites for terrestrial conservation in Eastern North America; areas for conservation based on land characteristics that increase diversity and resilience. ​This report updates the resilience analysis for Eastern North America with improved and unified methods. Sites are identified across all geophysical settings that have land characteristics (landscape diversity and local connectedness) that increase resilience to climate change.See PDF in this folder, TNC website or TNC Mapper for more info. 2016
ResiliencePermeability Resilient and connected landscapes for terrestrial conservation. This report brings together resilience, permeability, and diversity to develop a connected network of sites that both represents the full suite of geophysical settings and has the connections necessary to support the continued rearrangement of species in response to change.


Last updated: November 13, 2018