A presence (1)/absence (0) matrix of seven Darwin’s finch species across 13 Galápagos Islands.
finchesA data frame with 7 rows (Darwin’s finch species, in the row names) and 17 columns (Galápagos Islands):
presence (1) or absence (0)
presence (1) or absence (0)
presence (1) or absence (0)
presence (1) or absence (0)
presence (1) or absence (0)
presence (1) or absence (0)
presence (1) or absence (0)
presence (1) or absence (0)
presence (1) or absence (0)
presence (1) or absence (0)
presence (1) or absence (0)
presence (1) or absence (0)
presence (1) or absence (0)
presence (1) or absence (0)
presence (1) or absence (0)
presence (1) or absence (0)
presence (1) or absence (0)
Row names are the seven species: Geospiza magnirostris, G. fortis, G. fuliginosa, G. difficilis, G. scandens, G. conirostris, and G. fuliginosa.