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首页> 外文期刊>The Journal of the Torrey Botanical Society >Pollinator behavior differs between female and hermaphroditic plants of Lobelia spicata Lam. (Campanulaceae).
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Pollinator behavior differs between female and hermaphroditic plants of Lobelia spicata Lam. (Campanulaceae).

机译：Lobelia spicata Lam的雌性和雌性两性植物的授粉行为不同。 （桔梗）

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摘要

Female flowers of gynodioecious species (plants with either female or hermaphroditic flowers) are typically smaller with no reward for pollinators. We proposed and tested that pollinators (bees and butterflies) would visit female plants less frequently and visit fewer flowers for a shorter duration in a native prairie species, Lobelia spicata. We observed and quantified floral visitors exhibiting pollinator behavior in a population of L. spicata in a remnant tallgrass prairie located in central Illinois. We also quantified the number of seeds per fruit and fruits per plant. We found female plants have fewer visitors than hermaphroditic plants. Bees and butterflies, once on female plants, visited fewer flowers and spent less time than on hermaphroditic plants. Despite the lower number and shorter duration of visits, the females set more seeds per fruit. However, females did not consistently produce more seeds per plant, which is required to maintain females in the population.
机译：雌雄同体种的雌花（具雌性或雌雄同体花的植物）通常较小，但对授粉媒介没有奖励。我们提出并测试了传粉媒介（蜜蜂和蝴蝶）在本地草原物种Lobelia spicata中的访花频率较低，雌花较少，花期较短。我们观察并量化了位于伊利诺伊州中部残留高草草原上的L. spicata种群中表现出授粉行为的花卉访客。我们还量化了每种水果的种子数量和每种植物的水果数量。我们发现雌性植物的访客比雌雄同体的植物少。与雌雄同体的植物相比，曾经在雌性植物上的蜜蜂和蝴蝶花少，花的时间也少。尽管访问次数较少且持续时间较短，但雌性为每个果实设置更多的种子。但是，雌性并不能始终如一地生产出更多的种子，这是维持种群中雌性所必需的。

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