Ecological Integrity Metrics

The ecological integrity products represent a set of metrics corresponding to our ecosystem-based ecological assessment in 2010 (see Integrity document for details). The ecological integrity metrics include a variety of measures of intactness and resiliency. The individual metrics are also combined into a composite local index of ecological integrity (IEI). Much of this data is also available clipped to buffered state boundaries.

  1. Index of ecological integrity (IEI) [updated 10/14/2021] — IEI rasters are scaled by ecosystem as depicted in the DSLland grid (see ancillary products) and by various geographic extents (Northeast region, state, ecoregion, and HUC6 watersheds). See ancillary products for shapefiles and rasters of the various geographic extents.
  2. Development metrics (includes habitat loss, mowing and plowing, microclimate alterations, edge predators, domestic predators, invasive plants, and invasive earthworms metrics) [updated 3/18/2020]
  3. Resiliency metrics (includes connectedness, aquatic connectedness, and similarity metrics) [updated 10/14/2021]
  4. Salt marsh ditching [updated 3/18/2019]
  5. Sea level rise [updated 4/20/2018]
  6. Climate stress [updated 5/10/2018]
  7. Tidal restrictions [updated 3/18/2020]
  8. Traffic [updated 3/18/2020]
  9. Watershed metrics (includes watershed habitat loss, watershed imperviousness, road salt, sediment, nutrients, and dam intensity metrics) [updated 3/18/2020]