Social and Ecological Drivers of the Economic Value of Pollination Services Delivered to Coffee in Central Uganda
Figure 3
Relationships between bee diversity (number of bee species visiting coffee) and economic measures of coffee production: (a) Yield (kg/ha); (b) gross revenue (US$/ha), and (c) value of bees to coffee production (US$/ha). = coefficient of the determination of the regression model; SE = standard error; = statistical significance level; = degrees of freedom; = analysis of variance value of the Snedecor test.