Impatiens glandulifera is a globally successful invader that primarily spreads along riparian habitats; however, during the last ~20 years, it has started to colonise forests, but little has been published on impacts of this recent spread. Several factors may have contributed to this phenomenon: (i) high propagule pressure from large and widespread riparian populations, (ii) extensive anthropogenic and natural disturbances in the forest ecosystems, (iii) increased use of forest machinery efficiently spreading the seeds together with (iv) a wide environmental tolerance of the species. The impacts of I. glandulifera on native communities in forests are manifold. Contrasting effects are reported on native plant species diversity, richness and growth of saplings of co‐occurring species, as well as negative effects on soil mycorrhizal fungi. We suggest that the eradication of I. glandulifera populations in forests is more feasible than along watercourses because the recolonisation in forests is limited and, in some cases, populations are outcompeted by woody species during succession.

中文翻译：

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凤仙花从河岸生境到森林的蔓延及其相关影响：新入侵的见解

凤仙花（Impatiens glandulifera）是一种在全球范围内成功的入侵者，主要在沿岸栖息地传播。然而，在过去约20年中，它已开始在森林中定植，但是关于这种最近传播的影响的报道很少。造成这种现象的原因可能有以下几种：（i）来自大量河岸种群的大量繁殖物；（ii）森林生态系统中的大量人为和自然干扰；（iii）越来越多地使用森林机械有效地传播种子，以及（ iv）该物种具有广泛的环境耐受性。I. glandulifera的影响在森林中的土著社区是多种多样的。据报道，对天然植物物种的多样性，共生物种的幼树的丰富度和生长有相反的影响，以及对土壤菌根真菌的负面影响。我们认为，在森林中消灭I. glandulifera种群比在河道中更可行，因为森林的重新定殖是有限的，并且在某些情况下，在演替过程中种群被木本植物竞争。