Service Description:
# The buffer layer represents stream segments with associated environmental predictors and a final Suitability Score for Alligator Snapping Turtle. It was generated by buffering selected NHD stream segments (orders 3-8) by average stream bank width and computing relevant predictor values from NHD and the EMS rank layer.
# Predictor Variables:
# Stream Order – Categorical stream hierarchy (3–8), derived from NHD flowline attributes.
# Sinuosity – Ratio of stream length to straight-line distance, winsorized to reduce outlier influence.
# EMSR_AVG – Mean expert-ranked vegetation suitability within the buffered stream area.
# EMSR_STD – Standard deviation of vegetation suitability, indicating habitat variability.
# Suitability Score Calculation:
# Predictors were min-max normalized to scale values between 0 and 1.
# A weighted overlay model was applied:
# S=(0.90×StreamOrde)+(0.75×EMSR_STD)+(0.60×Sinuosity)+(0.60×EMSR_AVG)
# Scores were categorized as Low (<0.40), Moderate (0.40–0.74), or High (≥0.75) suitability.
Service ItemId: 4b126119660c4a6cbb0d6123d357ca25
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: False
Supports Shared Templates: False
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Description:
Copyright Text:
Spatial Reference: 4269 (4269)
Initial Extent:
XMin: -96.7829189593201
YMin: 31.3572235046948
XMax: -94.9466665272201
YMax: 32.9505720852559
Spatial Reference: 4269 (4269)
Full Extent:
XMin: -98.7373083433037
YMin: 28.7833413249759
XMax: -93.3041564430499
YMax: 34.0413118594127
Spatial Reference: 4269 (4269)
Units: esriDecimalDegrees
Child Resources:
Info
Supported Operations:
Query
ConvertFormat
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Create Replica