Direct and Indirect Effects of Nectar Robbing on the Pollinating Behavior of Patagona gigas (Trochilidae)

In central Chile, nectar robbing of Puya coerulea (Bromeliaceae) flowers by the austral blackbird, Curaeus curaeus, had a direct impact on the plant via removal of floral resources and, in some cases, damage or even destruction of flowers. These robbing visits also likely had an indirect impact on p...

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Veröffentlicht in:Biotropica 2005-12, Vol.37 (4), p.693-696
Hauptverfasser: González-Gómez, Paulina L., Valdivia, Carlos E.
Format: Artikel
Sprache:eng
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Zusammenfassung:In central Chile, nectar robbing of Puya coerulea (Bromeliaceae) flowers by the austral blackbird, Curaeus curaeus, had a direct impact on the plant via removal of floral resources and, in some cases, damage or even destruction of flowers. These robbing visits also likely had an indirect impact on plant fitness due to the decreased rate of legitimate visits by the hummingbird Patagona gigas to inflorescences with many robbed flowers. The proportion of flowers within an inflorescence visited by P. gigas was inversely proportional to the ratio of robbed flowers. /// En Chile central, el robo de néctar a flores de Puya coerulea (Bromeliaceae) por Curaeus curaeus tuvo impacto directo sobre la planta por remoción de néctar y, en algunos casos, daño o destrucción de flores. El robo tuvo impacto directo en la adecuación biológica de la planta debido al decremento en la tasa de visitas del polinizador Patagona gigas a inflorescencias con flores robadas: la proporción de flores visitadas por P. gigas, dentro de una inflorescencia, fue inversamente proporcional a la proporción de flores robadas.
ISSN:0006-3606
1744-7429
DOI:10.1111/j.1744-7429.2005.00088.x