On the Relationship Between Stream Biotic Diversity and Exurbanization in the Northeastern USA - Geospatial Tools for Urban Water Resources - page 69

Table 4.2 Tabular results of 'general additive model' statistical analysis for all scenarios
General additive model
Watershed

R 2 R 2

Primary selected variables p-value n

D

NEPT Non-weighted

Aggregated ISA,Area 71 % *** 27

Catchment ISA,Crop 74 % *** 32

Landscape weighted

Aggregated ISA 76 % 5 % *** 27

Catchment ISA,Area,Grass 76 % 2 % *** 32

NEPT Taxa Non-weighted

Aggregated ISA,Grass 72 % *** 27

Catchment ISA,Area,Tree 76 % *** 32

Landscape weighted

Aggregated ISA,Grass,Crop 69 % 3 % *** 27

Catchment ISA,Area,Crop 76 % 0 % *** 32

Non-weighted

HBI

Aggregated n/a MA ISA,Crop RI n/a MA 60 % RI *** MA *** RI 11 MA 28 RI

Catchment ISA,Crop MA ISA,Tree RI 51 % MA 47 % RI *** MA *** RI 47 MA 36 RI

Landscape weighted

Aggregated n/a MA ISA,Crop,Tree RI n/a MA 59 % RI n/a MA 1% RI *** MA *** RI 11 MA 28 RI

Catchment ISA,Crop,Tree MA ISA,Crop RI 43 % MA 44 % RI 8% MA 3% RI *** MA *** RI 47 MA 36 RI

*** p < 0.001