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Table 1 Multiple regression analysis of potential correlates of neotropical freshwater diaptomid species richness

From: Historical biogeography of the neotropical Diaptomidae (Crustacea: Copepoda)

Variable

Estimate

Std. error

t value

Pr (>|t|)

log (area)

0.45

0.08

5.84

2.1e-07

Altitude

0.00

0.00

−0.60

0.55

Annual mean temperature

0.01

0.01

0.35

0.73

Maximum temperature of warmest month

0.00

0.01

−0.53

0.60

Minimum temperature of coldest month

0.01

0.01

0.70

0.49

Annual precipitation

0.00

0.00

−0.37

0.71

Precipitation of driest month

0.00

0.01

0.57

0.57

Precipitation of wettest month

0.00

0.00

−0.50

0.62