Table 2

The relationship of fungal abundance and richness to weather.

Direct climate measurements

Fungal abundance

Fungal richness


average temperature

(-) 0.18

(-) 0.26a

standard deviation of temperature

(+) 0.01

(+) 0.02

average relative humidity (RH)

(+) 0.30a

(+) 0.35b

standard deviation of RH

(+) 0.27a

(+) 0.33b

average daily maximum RH

(+) 0.43b

(+) 0.65c

average vapor pressure deficit (VPD)

(-) 0.30a

(-) 0.44b

standard deviation of VPD

(-) 0.15

(-) 0.16

# of consecutive days above freezing

(-) 0.38b

(-) 0.45b

proportion of time with RH > 94%

(+) 0.37b

(+) 0.36b

proportion of days with max RH >90%

(+) 0.41b

(+) 0.54c

average # of consecutive days with max RH >90%

(+) 0.21a

(+) 0.12

proportion of days with max RH <50%

(-) 0.43a

(-) 0.70c

average # of consecutive days with max RH < 50%

(-) 0.56c

(-) 0.72c


Climate parameters from weather stations


annual precipitation

(+) 0.21a

(+) 0.14

annual temperature

(-) 0.22a

(-) 0.37c


Site-specific parameters


elevation

(+) 0.09

(+) 0.18a

latitude

(+) 0.22a

(+) 0.35b

longitude

(-) 0.03

(-) 0.17a

presence of water at site

(+) 0.26b

(+) 0.16a

associated vegetation indicative of moisture

(+) 0.49c

(+) 0.4c


a: P < 0.05, b: P < 0.01, c: P < 0.001. The relationship of fungal abundance and richness to parameters derived from direct climate measurements (calculated from the relative humidity and temperature of the habitat), annual climate records from nearby weather stations, and site-specific factors. Values are coefficients of determination (r2) with the sign of the slope in parentheses. Direct weather parameters were analyzed using records for the growing season, March to October, 1999.

Talley et al. BMC Ecology 2002 2:7   doi:10.1186/1472-6785-2-7

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