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Pollination of Bactris (Palmae) in an Amazon forest |
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| Authors: | Andrew Henderson Renata Pardini José Fernando Dos Santos Rebello Sergio Vanin Daniela Almeida |
| Institution: | 1. The New York Botanical Garden, 10458-5126, Bronx, New York, NY, U.S.A. 2. Biological Dynamics of Forest Fragments Project, National Institute for Research in the Amazon (INPA), C.P. 478, 69011-970, Manaus, MA, Brazil 3. Instituto de Biociências, Universidade de S?o Paulo, C. P. 20520, S?o Paulo, 05421, Brazil 4. Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil |
| Abstract: | Phenology, inflorescence behavior, and pollination of 10 sympatric taxa ofBactris were studied in a lowland Amazon forest. Taxa flowered over an eight month period during the rainy season and early dry season, but individual taxa flowered for one to a few months. Related taxa had mostly non-overlapping flowering periods. Inflorescence behavior was similar for all taxa, with nocturnal pistillate anthesis and temperature elevation, followed 24 hours later by rapid, nocturnal staminate anthesis. Pollinators of all taxa were small weevilsPhyllotrox (Curculionidae) and nitidulidsColopterus (Nitidulidae), although various other insect visitors were recorded. Large numbers ofPhyllotrox were recorded on inflorescences, but weevil sex ratios were highly skewed. |
| Keywords: | Bactris Palmae pollination beetles Phyllotrox Colopterus |
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