List of plant species of the floodplain ecosystems of Khortytsia Island (Ukraine), their functional traits and indices of functional diversity, naturalness and hemeroby

The investigation examines the potential of hemeroby as an indicator for assessing the impact of anthropogenic disasters on plant functional diversity. The functional structure of plant communities was analysed in the first year following the event, using Khortytsia Island (Ukraine) as a case study, which experienced significant environmental changes after the destruction of the Kakhovka Dam. The research identified 146 species of vascular plants and employed multivariate analysis, utilizing functional diversity indices and principal component analysis. The findings revealed that hemeroby is closely associated with changes in functional redundancy and evenness. Key trends include the formation of communities with high functional redundancy in disturbed areas and an increase in evenness due to the loss of dominant species. The spatial patterns of change indicate a complex interaction between human impacts and natural moisture gradients. The study underscores the significance of hemeroby as an effective indicator of ecological shifts in floodplain ecosystems.本研究探讨了生境人类影响度（hemeroby）作为评估人为灾害对植物功能多样性影响之指标的潜力。以卡霍夫卡大坝被毁后发生显著环境变化的乌克兰霍尔特西西亚岛为研究案例，本研究在灾害发生后的第一年内对植物群落的功能结构展开分析。本次研究共记录146种维管植物，采用多变量分析方法，结合功能多样性指数与主成分分析开展研究。研究结果表明，生境人类影响度与功能冗余和群落均匀度的变化密切相关。核心趋势包括：受干扰区域形成了功能冗余度较高的植物群落，且因优势物种丧失导致群落均匀度提升。变化的空间格局显示，人类活动影响与自然湿度梯度之间存在复杂的交互作用。本研究凸显了生境人类影响度作为洪泛平原生态系统生态变化有效指示指标的重要意义。