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By: Ortiz-Pulido, Raúl - Anaid-Díaz, Silvia - Valle-Díaz, Oscar Israel - Fisher, Ana D.Type: ArticleIn: Revista mexicana de biodiversidadVolume:Series:Issue:Date: 2012-03-01Page Range:Publication Info:Subjects: hummingbird-plant interaction ornithophilous flowers Puebla-Oaxaca Tehuacán-Cuicatlán Biosphere Reserve