The data table of eleven invasive species in Hungary and Romania: Invasive species' cover, invasive species' traits, basic characteristics, trait composition, functional diversity indices and soil parameters of recipient plant communities

We studied 11 widespread herbaceous invasive alien species of East-Central Europe and their 16 impact metrics (resident plant communities’ ecological characteristics, trait composition, functional diversity, and soil parameters) by sampling invaded and similar, uninvaded sites (space-for-time substitution method). Our aim was to (1) investigate the detailed ecological impacts of invasive plants on native plant communities; (2) explore the type of cover-impact relationships across impact metrics and their consistency across species; (3) study whether the cover-impact relationship depends on functional traits of invasive species. We present the data table with the 11 invasive species: the status of the sites (invaded, uninvaded), the cover of invasive species at plot level, the invasive species traits (lifespan, height, SLA, seed mass, clonal spread, flowering duration), community characteristics (species richness and diversity, native vegetation cover and bare ground cover at plot level)..., We surveyed various regions of Hungary and Romania, where one of the chosen invasive species achieved dominance in the recipient communities. The chosen invasive species were: Ambrosia artemisiifolia L., Asclepias syriaca L., Erigeron annuus L. (Desf.), Erigeron canadensis L., Gaillardia aristata Pursh, Helianthus tuberosus L., Impatiens glandulifera Royle, Reynoutria japonica Houtt., Rudbeckia laciniata L., Solidago gigantea Aiton, Symphyotrichum lanceolatum Nesom. agg. To infer the effects of an invasive species on native plant communities, we used the space-for-time substitution approach. We chose seven pairs of sites for each invasive species: ‘invaded sites’, where the invasive species had considerable cover, and ‘uninvaded sites’, where the invader had no significant cover (< 5%) or was absent. In all sites, we sampled the vegetation in three 3 m × 3 m plots per site. Fieldwork was carried out between 2017 and 2019. Percent cover of native vegetation, bare ground, and all vasc...,本研究针对中东欧地区11种广泛分布的草本外来入侵物种，采用入侵样地与匹配的未入侵样地的空间替代法（space-for-time substitution method），采集涵盖本地植物群落生态特征、性状组成、功能多样性及土壤参数在内的16项影响指标数据。本研究的目标为：（1）解析入侵植物对本地植物群落的具体生态影响；（2）探究不同影响指标下盖度-影响关系的类型，以及该关系在不同入侵物种间的一致性；（3）揭示盖度-影响关系是否依赖于入侵物种的功能性状。 本研究提供包含11种入侵物种的数据集表格，内容包括样地状态（入侵、未入侵）、样方尺度下入侵物种的盖度、入侵物种的功能性状（寿命、株高、比叶面积（Specific Leaf Area，SLA）、种子质量、克隆扩散能力、开花时长）以及群落特征（样方尺度下的物种丰富度与多样性、本地植被盖度及裸地盖度）…… 本研究在匈牙利与罗马尼亚的多个区域开展调查，所选入侵物种在接收群落中占据优势地位。所选入侵物种包括：豚草（Ambrosia artemisiifolia L.）、叙利亚马利筋（Asclepias syriaca L.）、一年蓬（Erigeron annuus L. (Desf.)）、加拿大飞蓬（Erigeron canadensis L.）、大花天人菊（Gaillardia aristata Pursh）、菊芋（Helianthus tuberosus L.）、凤仙花（Impatiens glandulifera Royle）、虎杖（Reynoutria japonica Houtt.）、齿叶金光菊（Rudbeckia laciniata L.）、巨序一枝黄花（Solidago gigantea Aiton）、披针叶紫菀复合群（Symphyotrichum lanceolatum Nesom. agg.）。 为解析入侵物种对本地植物群落的影响，本研究采用空间替代法。针对每种入侵物种，我们选取7组样地对：“入侵样地”（入侵物种盖度较高）与“未入侵样地”（入侵物种盖度低于5%或完全未出现）。 所有样地均设置3个3米×3米的样方开展植被调查。野外调查工作于2017年至2019年间开展。本研究记录了本地植被盖度、裸地盖度及所有维管植物的……