Fig 1.
Map of Cameroon showing the two sample populations.
The large rural population on the left (white dots) comprises the two localities where the social dynamic of tree planting was investigated (1, Manjo; 2, Bandounga). The urban population (Yaoundé, orange square) is enlarged on the right, showing the urban trees sampled in the 250-ha area, with information on the ethnic group of the tree owners. Map image was created on QGIS version 3.6.1 [44]. We used OpenStreetMap (www.openstreetmap.org) and shapefiles of Earth with shaded relief and water from Natural Earth (www.naturalearthdata.com/ and of the global tree cover in the area, described in Hansen et al. [45] and available at glad.umd.edu/Potapov/TCC_2010/. GPS coordinates are stored in the S1 Dataset.
Table 1.
Differences in seed provenance and distance between rural and urban populations of D. edulis.
Fig 2.
Provenances of the seeds used to plant different urban trees in Yaoundé.
The different trees sampled in Yaoundé (n = 121, red dot) are mapped with symbols depending on the ethnic group of the tree owners. Map image was created using the same program and shapefiles as Fig 1. GPS coordinates indicating seed provenance can be found on the OSF repository of the project.
Table 2.
Genetic diversity indices of the rural and urban populations of D. edulis.