4.3. Relative abundance ranking In farms, the 10 most abundant tree species accounted for 64%of trees (Table 3). The dominant tree was Inga oerstediana, which accounted for 37.7% of all trees. Three Inga spp. (I. oerstediana, Inga punctata and Inga vera) accounted for 45% of all trees. Inga spp. were the preferred shade trees by farmers. In contrast, in forests the 10 most abundant species accounted for 53% of trees. The dominant trees were Quercus skinneri (11.8%) and I. oerstediana (11.2%), the only Inga sp. found in our forest sample. In farms, 50 species, more than half the species identified, were represented by only one or two trees, which correspond to 10.2% of trees. In forests, 36 species were represented by one or two trees, which corresponded to 8.4%of trees.