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♦ 1Birds and berries: a study of an ecological interaction. Calton, Great
Britain, Snow B.K., Snow D.W., 1988, T & AD Poyser. 268 p.
♦ 2Differential seed dispersal patterns generated by a common assemblage of vertebrate frugivores in three fleshy-fruited trees, Isabel MARTÍNEZ, Daniel GARCÍA & José Ramón OBESO, Écoscience, 15 (2): 189-199 (2008)
♦ 3Ecology of Commanster♦ 4Geographical ecology and variation of plant-seed disperser interactions: southern Spanish junipers and frugivorous thrushes, Pedro Jordano, Vegetatio 107/108: 85-104, 1993.