4.7 Article

Brief Pollination Assessment of a Critically Endangered Food-Deceptive Orchid (Cypripedium guttatum) Using a Network Approach

期刊

PLANTS-BASEL
卷 11, 期 6, 页码 -

出版社

MDPI
DOI: 10.3390/plants11060798

关键词

ecological context; effective pollinator; nestedness; network; slipper orchid

资金

  1. Korea National Arboretum (KNA) [KNA1-2-32, 18-3]

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This study assessed the pollination of C. guttatum by conducting a survey of general pollination and analyzing the plant-pollinator network properties. The sweat bee Lasioglossum virideglaucum was identified as an effective pollinator of the orchid. The study revealed that high plant and pollinator richness could increase the chance of successful pollination for the deceptive orchid.
The translocation of orchids (Orchidaceae) cannot be successful if one is unaware of their effective pollinators and plant-pollinator interactions. Cypripedium guttatum is a generalized food-deceptive orchid, which is highly threatened in the Republic of Korea, thus, requiring immediate translocation actions. Although effective pollinators of the orchid are well known in China, little is known about the pollinators in the Republic of Korea and the ecological context in which the orchid can be successfully pollinated. To briefly assess the pollination of C. guttatum prior to translocation, we conducted a one-month survey of general pollination and the community-wide plant-pollinator network properties. Over 21 h of observation, we found that an effective pollinator of the orchid was the sweat bee Lasioglossum virideglaucum. The network was significantly specialized and modular, but not significantly nested. L. virideglaucum (pollinator) and Arabis gemmifera (plant) were determined to be keystone species, based on network metrics. A total of six network modules were identified and the flower colors of the plant species belonging to the C. guttatum module were purple, white, and yellow. After comparing the daily network patterns, we found that pollination of the orchid was accomplished when various flowering plant species bloom, and the nestedness value was high. This study revealed that high plant and pollinator richness could increase the chance that the deceptive orchid would be pollinated. Our study suggests that the network properties of this food-deceptive orchid community could provide useful insight into understanding the ecologically suitable habitat for the translocation of the highly threatened orchid species C. guttatum.

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