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Dioecious Clusia nemorosa achieves pollination by combining specialized and generalized floral rewards
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SYSNO ASEP 0365401 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Dioecious Clusia nemorosa achieves pollination by combining specialized and generalized floral rewards Author(s) Vlasáková, Blanka (BU-J) RID
Jarau, S. (DE)Number of authors 2 Source Title Plant Ecology. - : Springer - ISSN 1385-0237
Roč. 212, č. 8 (2011), s. 1327-1337Number of pages 11 s. Language eng - English Country NL - Netherlands Keywords Clusia ; inselberg ; Meliponini Subject RIV EF - Botanics R&D Projects GD206/03/H137 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z60050516 - BU-J (2005-2011) UT WOS 000292820600008 DOI 10.1007/s11258-011-9908-0 Annotation The dioecious Clusia nemorosa produces floral resin and it also exhibits floral automimicry. We observed the hourly visitation frequency and behaviour of bee visitors. We hypothesized that the visitation rate will vary between the floral sexes and degree of this variation will differ between the two-reward systems. We found no evidence for visits being exclusively related to resin collection. Deceit pollination appeared to have minor importance. Flower visits that probably facilitated most pollen transfer, combined resin and pollen. The pollinators collected pollen from male flowers and resin from female flowers. The fruit set was not particularly low (44.19%) so offering different rewards by different flower genders has not constrained reproductive success in this system. Overall demand for pollen was greater than demand for resin. Female flowers were visited much less frequently than male flowers. Workplace Institute of Botany Contact Martina Bartošová, martina.bartosova@ibot.cas.cz, ibot@ibot.cas.cz, Tel.: 271 015 242 ; Marie Jakšová, marie.jaksova@ibot.cas.cz, Tel.: 384 721 156-8 Year of Publishing 2012
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