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♦ ¹Specialization and interaction strength in a tropical plant-frugivore network differ among forest strata, Matthias Schleuning, Nico Blüthgen, Martina Flörchinger, Julius Braun, H. Martin Schaefer, and Katrin Böhning-Gaese, Ecology, in press.
♦ ²del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.