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Table 1 Summary of metrics inventoried. Lifeform categories include tree, live shrub, dead shrub, native herbaceous, and non-native herbaceous

From: Plant community response to fuel break construction and goat grazing in a southern California shrubland

Measurement category Measurement Method Reason Treatment comparison Statistical test Data transformation
Species cover Percent cover of each species (%) The number of times an individual of each species was encountered at each of the 100 points along the transect line Evaluate the compositional differences between intact chaparral and treated fuel break Untreated vs treated NMDS  
Lifeform cover Percent cover of each lifeform category (%) The number of times a lifeform category was encountered at each of the 100 points along the transect line Evaluate the difference in lifeform cover between intact chaparral and treated fuel break Untreated vs treated t-test = all lifeform categories, except Wilcoxon rank-sum for tree cover Square-root: shrub cover, herb cover
Evaluate the change in lifeform cover due to short-duration goat grazing Pre-grazing vs post-grazing t-test Square-root: herb cover, tree cover
Species richness Number of species within each lifeform category (count) Number of unique species encountered along each of the 100 points along the transect line Evaluate the difference in species richness between intact chaparral and treated fuel break Untreated vs treated t-test = all lifeform categories, except Wilcoxon rank-sum for tree richness Square-root: shrub richness, herb richness
Evaluate the change in species richness due to short-duration goat grazing Pre-grazing vs post-grazing t-test = all lifeform categories, except Wilcoxon rank-sum for tree richness Square-root: dead shrub richness, herb richness; Sin: live shrub richness
Lifeform height Maximum height for each lifeform category (cm) Average maximum height for each lifeform category encountered along each of the 100 points along the transect line Evaluate the structural differences between intact chaparral and treated fuel break Untreated vs treated t-test = shrub height; Wilcoxon rank-sum = herb height Square-root: shrub height
Evaluate the structural differences caused by short-duration goat grazing Pre-grazing vs post-grazing t-test = shrub height; Wilcoxon rank-sum = herb height