Figure 4

Spatial arrangement of Agave species of the Tehuacán Valley according to the Principal Component Analysis performed with socio-ecological variables. Sp1 = Agave americana var. americana, Sp2 = A. americana var. marginata, Sp3 = A. americana var. oaxacensis, Sp4 = A. angustiarum, Sp5 = A. angustifolia, Sp6 = A. angustifolia var. angustifolia, Sp7 = A. applanata, Sp8 = A. atrovirens, Sp9 = A. atrovirens var. atrovirens, Sp10 = A. atrovirens var. mirabilis, Sp11 = A. chiapensis, Sp12 = A. convallis, Sp13 = A. ghiesbreghtii, Sp14 = A. karwinskii, Sp15 = A. kerchovei, Sp16 = A. macroacantha, Sp17 = A. mapisaga, Sp18 = A. marmorata, Sp19 = A. nussaviorum subsp. nussaviorum, Sp20 = A. peacockii, Sp21 = A. potatorum, Sp22 = A. salmiana subsp. salmiana, Sp23 = A. salmiana subsp. tehuacanensis, Sp24 = A. scaposa, Sp25 = A. seemanniana, Sp26 = A. stricta, Sp27 = A. titanota, Sp28 = A. triangularis.