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首页> 外文期刊>Plant biology >Pollination of lark daisy on roadsides declines as traffic speed increases along an Amazonian highway
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Pollination of lark daisy on roadsides declines as traffic speed increases along an Amazonian highway

机译：随着沿亚马孙高速公路的交通速度增加，路边的百灵雏菊的授粉量下降

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摘要

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.
机译：先前已经报道过由道路造成的生态干扰，但尚未解决交通速度问题。我们调查交通速度对沿亚马逊高速公路路边的百日草（菊科）授粉的影响。我们假设花客的频率，单次探访的持续时间和花粉在柱头上的沉积将随着交通速度的增加而发生负向变化。在测量了车辆的速度之后，我们将三个路段分为低，中和高速交通。主要的传粉昆虫Augochlora sp。从低速到高速路边断面访视点状花序，而花蜜小偷蝴蝶则相反。蜜蜂和蝴蝶单次探访的持续时间较短，在高速路边比在低速路边，花粉在圆柏柱头上的到达时间要短。过往车辆引起的空气湍流随着速度增加而增加，并扰乱了花朵访客。总体而言，结果支持交通速度对花客的觅食和路旁绣球花的授粉产生负面影响。

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