Questions. How do contrasting environmental conditions among forests and hedgerows affect the vegetative and reproductive performance of understorey forest herbs in both habitats? Can hedgerows support reproductive source populations of forest herbs, thus potentially allowing progressive dispersal of successive generations along these linear habitats? Location. Hedgerows and deciduous forest patches in agricultural landscapes across the European temperate biome. Methods. First, we assessed differences in environmental conditions among forests and hedgerows. Next, we quantified plant performance based on a set of functional life‐history traits for four forest herbs (Anemone nemorosa, Ficaria verna, Geum urbanum, Poa nemoralis) with contrasting flowering phenology and colonisation capacity in paired combinations of forests and hedgerows, and compared these traits among both habitats. Finally, we assessed relationships between plant performance and environmental conditions in both habitats. Results. All study species showed a higher above‐ground biomass in hedgerows than in forests. For Poa nemoralis and Geum urbanum, we also found a higher reproductive output in hedgerows, which was mainly correlated to the higher sub‐canopy temperatures therein. The “ancient forest herb” Anemone nemorosa, however, appeared to have a lower reproductive output in hedgerows than in forests, while for Ficaria verna no reproductive differences were found between the two habitats. Conclusions. This is the first study on such a broad geographical scale to provide evidence of reproductive source populations of forest herbs in hedgerows. Our findings provide key information on strategies by which forest plants grow, reproduce and disperse in hedgerow environments, which is imperative to better understand the dispersal corridor function of these wooded linear structures. Finally, we highlight the urgent need to develop guidelines for preserving, managing and establishing hedgerows in intensive agricultural landscapes, given their potential to contribute to the long‐term conservation and migration of forest herbs in the face of global environmental change.

中文翻译：

---

对冲生物多样性丧失：欧洲温带植物篱中森林草本植物的表现

问题。森林和灌木篱笆之间的对比环境条件如何影响两个栖息地的林下森林草本植物的营养和繁殖性能？树篱能否支持森林草本的生殖源种群，从而有可能允许沿这些线性栖息地的连续世代逐步扩散？地点。欧洲温带生物群落农业景观中的树篱和落叶林斑块。方法。首先，我们评估了森林和树篱之间环境条件的差异。接下来，我们根据四种森林草本植物（银莲花、Ficaria verna、Geum Urbanum、Poa nemoralis）的一组功能性生活史特征量化植物性能，在成对的森林和树篱组合中具有对比的开花物候和定植能力，并比较了两个栖息地的这些特征。最后，我们评估了两个栖息地的植物性能与环境条件之间的关系。结果。所有研究物种的树篱中的地上生物量都高于森林。对于Poa nemoralis 和Geum Urbanum，我们还发现树篱中的繁殖产量更高，这主要与其中较高的亚冠层温度有关。然而，“古老的森林草本植物”海葵在树篱中的繁殖产量似乎低于在森林中的繁殖量，而对于 Ficaria verna 而言，在这两个栖息地之间没有发现繁殖差异。结论。这是第一次在如此广泛的地理范围内进行研究，以提供树篱中森林草本生殖源种群的证据。我们的研究结果提供了关于森林植物在树篱环境中生长、繁殖和扩散的策略的关键信息，这对于更好地理解这些树木繁茂的线性结构的扩散走廊功能至关重要。最后，我们强调迫切需要制定在集约化农业景观中保护、管理和建立树篱的指南，因为它们在面对全球环境变化时有助于森林草本植物的长期保护和迁移。