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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.
♦ ²Farwig, Nina; Schabo, Dana G.; Albrecht, Jörg (2017), Data from: Trait-associated loss of frugivores in fragmented forest does not affect seed removal rates, Dryad, Dataset, https://doi.org/10.5061/dryad.2784g