Figure 5From: Wild food plants and wild edible fungi in two valleys of the Qinling Mountains (Shaanxi, central China)The relationship between the listed number of edible species and age. A polynominal curve explains the relationship better than a linear model (-0.00665?×2?+?0.8327?×-2.807, R2?=?0.048, p?=?0.18).Back to article page