Table 2: Land use effect on specific richness of herbaceous vegetation (GLMs analysis).

Protected areaCommunal area

FamiliesOverall33370.22870.6325
Sahel12254.66650.0308
North Sudanian30270.15800.6910
South Sudanian28330.41030.5218

GenusOverall1251451.48280.2233
Sahel317418.1381<0.0001
North Sudanian100950.12820.7203
South Sudanian1021050.04350.8348

Species richnessOverall2232633.29590.0695
Sahel4112847.0106<0.0001
North Sudanian1471500.03030.8618
South Sudanian1611680.14890.6995

Significant effect of the statistic test.