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Title: | Pollination of lark daisy on roadsides declines as traffic speed increases along an Amazonian highway |
Authors: | Dargas, Junior Henrique Frey Chaves, S. R. Fischer, Erich |
Keywords: | Anthropogenic Effect Conservation Planning Environmental Disturbance Herb Plant-pollinator Interaction Pollination Pollinator Reproductive Success Road Road Traffic Roadside Environment Turbulence Apoidea Asteraceae Augochlora Centratherum Punctatum Papilionoidea Nectar Animals Behavior, Animals Asteraceae Bee Ecology Flower Nectar Physiology Pollen Pollination Reproduction Animal Asteraceae Bees Behavior, Animals Ecology Flowers Plant Nectar Pollen Pollination Reproduction |
Issue Date: | 2016 |
metadata.dc.publisher.journal: | Plant Biology |
metadata.dc.relation.ispartof: | Volume 18, Número 3, Pags. 542-544 |
Abstract: | Ecological disturbances caused by roadways have previously been reported, but traffic speed has not been addressed. We investigate effects of traffic speed on pollination of Centratherum punctatum (Asteraceae) along an Amazonian highway roadside. We hypothesised that frequency of flower visitors, duration of single visits and pollen deposition on stigmas will vary negatively as traffic speed increases. After measuring vehicle velocities, we classified three road sections as low-, mid- and high-velocity traffic. The main pollinator bee, Augochlora sp., visited C. punctatum inflorescences with decreasing frequency from low- to high-velocity roadside sections, whereas the nectar thief butterflies did the opposite. Duration of single visits by bees and butterflies was shorter, and arrival of pollen on C. punctatum stigmas was lower, in high- than in low-velocity roadside. Air turbulence due to passing vehicles increases with velocity and disturbed the flower visitors. Overall, results support that traffic velocity negatively affects foraging of flower visitors and the pollination of C. punctatum on roadsides. © 2016 German Botanical Society and Royal Botanical Society of the Netherlands. |
metadata.dc.identifier.doi: | 10.1111/plb.12437 |
Appears in Collections: | Artigos |
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