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Table 1 Plant functional group starting (2003) and ending (2016) cover relative to fire treatments every two years. Values are the mean of the two spatial replications per treatment. Values marked with a positive sign (+) remained neutral or increased, and those with a negative sign (−) decreased..

From: Vegetation Responses to Season of Fire in Tallgrass Prairie: A 13-Year Case Study

Timing Tallgrass Other grass Forbs Legumes Woody plants
No fire −70 % to 20 % −19 % to 16 % +1 % to 10 % +1 % to 7 % +4 % to 67 %
Jan–Feb +58 % to 58 % −16 % to 4 % −15 % to 7 % +1 % to 1 % +11 % to 40 %
Mar–Apr +60 % to 60 % −15 % to 5 % −9 % to 5 % +1 % to 4 % +14 % to 51 %
May–Jun −51 % to 43 % −17 % to 14 % +4 % to 16 % −2 % to 1 % +21 % to 41 %
Jul–Aug −64 % to 42 % −12 % to 6 % +4 % to 15 % +2 % to 2 % +12 % to 31 %
Sep–Oct +56 % to 62 % −18 % to 10 % +5 % to 19 % −3 % to 2 % +13 % to 12 %
Nov–Dec +54 % to 68 % −19 % to 4 % +6 % to 9 % +1 % to 4 % +16 % to 34 %