Morphology and phenology influence plant–pollinator network structure, but whether they generate more stable pairwise interactions with higher pollination success remains unknown. Here we evaluate the importance of morphological trait matching, phenological overlap and specialisation for the spatio‐temporal stability (measured as variability) of plant–pollinator interactions and for pollination success, while controlling for species' abundance. To this end, we combined a 6‐year plant–pollinator interaction dataset, with information on species traits, phenologies, specialisation, abundance and pollination success, into structural equation models. Interactions among abundant plants and pollinators with well‐matched traits and phenologies formed the stable and functional backbone of the pollination network, whereas poorly matched interactions were variable in time and had lower pollination success. We conclude that phenological overlap could be more useful for predicting changes in species interactions than species abundances, and that non‐random extinction of species with well‐matched traits could decrease the stability of interactions within communities and reduce their functioning.

中文翻译：

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性状匹配和物候重叠增加了植物-授粉媒介相互作用的时空稳定性和功能性。

形态学和物候学影响着植物-授粉媒介的网络结构，但是它们是否产生更稳定的成对相互作用以及更高的授粉成功率仍然未知。在这里，我们评估了形态特征匹配，物候重叠和专业化对于植物-授粉媒介相互作用的时空稳定性（以变异性衡量）和授粉成功，同时控制物种数量的重要性。为此，我们将一个为期6年的植物-授粉媒介相互作用数据集与有关物种性状，物候，专业化，丰度和授粉成功的信息结合到结构方程模型中。丰富的植物和传粉者之间具有良好的性状和物候匹配，从而形成了稳定而功能强大的授粉网络，匹配度差的互动会随时间变化并且授粉成功率较低。我们得出的结论是，物候重叠可能比物种丰富度更能预测物种相互作用的变化，并且具有良好匹配特征的物种的非随机灭绝会降低群落内部相互作用的稳定性并降低其功能。