Floral syndrome, resources and pollinator guilds: a case study of Heliconia psittacorum L. f. (Heliconiaceae)
Keywords:
Hesperiidae, hummingbird behaviour, nectar energyAbstract
Flower resources can affect the guilds, frequency, and behaviour of visitors. This study compared the pollinator guilds and nectar energy of Heliconia psittacorum L. f. (Heliconiaceae) during the peak and at the end of the fl owering period in a fragment of the Atlantic Forest, northeastern Brazil. Nectar production and the availability of calories were highest in the early morning, coinciding with the highest activities of fl ower visitors. Calorie availability affects pollinator guilds. During the peak of the fl owering, we recorded the hummingbirds Amazila leucogaster Gmelin (territorialist) and Phaethornis ruber Linnaeus (trapliner), the butterfl y Talides sp. (Hesperiidae), and the bee Exaerete smaragdina Guérin- Méneville. During the fi nal fl owering period, Talides sp. and the hummingbirds P. ruber and P. pretei Lesson & DeLattre were recorded. Heliconia psittacorum is an important resource in the area, and the fl ower-pollinator syndrome could not predict some of the observed pollinators.
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