Data from: Are pollination "syndromes" predictive? Asian dalechampia fit neotropical models

Using pollination-syndrome parameters and pollinator correlations with floral phenotype from the neotropics, we predicted that Dalechampia bidentata Blume (Euphorbiaceae) in southern China would be pollinated by female resin-collecting bees between 12 and 20 mm in length. Observations in southwestern Yunnan Province, China, revealed pollination by resin-collecting, female Megachile (Callomegachile) nr. faceta Bingham (Hymenoptera: Megachilidae). These bees, at 14 mm in length, were in the predicted size range, confirming the utility of syndromes and models developed in distant regions. Phenotypic-selection analyses and estimation of adaptive surfaces and adaptive accuracies together suggest that the blossoms of D. bidentata are well adapted to pollination by their most common floral visitors.

本研究依托新热带区（Neotropics）的传粉综合征（pollination-syndrome）参数，以及传粉者与花表型的相关性数据，预测中国南方的双齿钩腺大戟（Dalechampia bidentata Blume，大戟科Euphorbiaceae）将由体长12至20毫米的雌性树脂采集蜂传粉。在中国云南省西南部开展的野外观测显示，该植物的实际传粉者为雌性树脂采集蜂——近缘尖面切叶蜂（Megachile (Callomegachile) nr. faceta Bingham，膜翅目Hymenoptera: 切叶蜂科Megachilidae）。此类切叶蜂体长14毫米，恰好处于此前预测的尺寸区间内，这证实了在遥远地理区域构建的传粉综合征及相关模型具备实用价值。表型选择分析、适应曲面（adaptive surface）估算与适应精度（adaptive accuracy）评估的综合结果表明，双齿钩腺大戟的花部结构已高度适配其最常见的花访客的传粉活动。