Methodology and Interpretation
Mean distance to closest like-type wetland
The mean minimum distance to closest wetland patch is the average distance from each wetland patch to its
nearest neighboring wetland patch in the reporting unit. Distances are measured from edge to edge and are
reported in meters. This metric is useful in determining relative wetland habitat suitability, at scales
that are ecologically meaningful for specific plant and animal taxa.
Quantile: Each class contains an approximately equal number (count) of features. A quantile
classification is well-suited to linearly distributed data. Because features are grouped by the number
within each class, the resulting map can be misleading, in that similar features can be separated into
adjacent classes, or features with widely different values can be lumped into the same class. This
distortion can be minimized by increasing the number of classes.
Metric input GIS data:
- United States Hydrologic Units (8-digit HUCs) - Metadata
- United States Coastal Change Analysis Program (CCAP) - Metadata
- Canada Hydrologic Units (Subsubdivisions) - Metadata
- Ontario Ministry of Natural Resources Data Set - Metadata