Attributes / relations provided by
♦ 1Effectiveness of Dispersal of an Ornithocorous Cactus Myrtillocactus geometrizans (Cactaceae) in a Patchy Environment, Mónica G. Pérez-Villafaña and Alfonso Valiente-Banuet, The Open Biology Journal, 2009, 2, 101-113
♦ 2Seed predation and dispersal in a dominant desert plant: Opuntia, ants, birds, and mammals, Mario González-Espinosa and Pedro F. Quintana-Ascencio, Frugivores and Seed Dispersal (eds A. Estrada & T. H. Fleming.), pp. 273284. Dr W. Junk, Publishers, Dordrecht.