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Table 4 Partial regression analyses on species richness (R) and species composition (C)

From: To what extent does Tobler's 1st law of geography apply to macroecology? A case study using American palms (Arecaceae)

 

Richness

Composition

 

RPE

RMX

RPS

RUN

RPE

RMX

RPS

RUN

The Americas

0.118

0.039

0.007

0.836

0.060

0.160

0.340

0.441

Amazon

0.003

0.223

0.500

0.274

0.274

0.570

0.190

0.194

Andes

0.267

0.023

0.006

0.704

0.262

0.163

0.020

0.556

Caribbean

0.224

-0.005

0.014

0.766

0.006

0.193

0.541

0.260

C. America

0.153

0.114

0.042

0.690

0.100

0.206

0.229

0.466

  1. Per 1° grid cell. The partition results in the four fractions: mixed spatial-environmental (RMX), pure spatial (RPS), pure environmental (RPE), and unexplained (RUN). The variation partitioning was based on regressions against the combinations of distance matrices giving the best model for each data set (See table 2).