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Table 4 Results of statistical comparisons among groups for the response of in situ mycorrhizal colonization to fire. Comparison between repeat fires and single fire events was not made due to insufficient studies.

From: Fire Reduces Fungal Species Richness and In Situ Mycorrhizal Colonization: A Meta-Analysis

Comparison Group Mean effect size (%) 95 % CI Recordsa Number of studies P-value
Guild ECM −26.9 −54.5 to 9.2 9 5 0.616
AM −17.8 −32.1 to 0.7 20 10
Fire type Prescribed −6.5 −25.7 to 17.9 11 8 0.219
Wildfire −28.5 −46.2 to −6.1 18 6
Biome* Temperate forest −35.2 −43.8 to −23.0 11 5 0.419
Boreal forest −5.4 −49.1 to 38.6 6 1
Temperate grassland −15.6 −40.7 to 19.5 10 6
  1. a Number of data records for each group.
  2. *Two studies were omitted because there were not enough records for tropical forest (Raman and Nagarajan 1996) and tropical grassland (Senthilkumar et al. 1995) for a statistical comparison.