东北林业大学,首次发表Science论文
生物世界·2025-10-24 10:00

Core Viewpoint - The research published in Science reveals the dynamic evolution of the impacts of biological invasions on terrestrial ecosystems, identifying "residence time" as a core dynamic factor predicting these impacts [1][4]. Group 1: Research Findings - The study analyzed 775 global studies on invasive species, covering 2,223 effect sizes related to the impacts of plants, animals, and microorganisms on 15 key ecosystem properties, creating the most comprehensive "invasion ecological impact database" to date [3]. - Invasive plants consistently reduce local plant diversity and contribute to increased greenhouse gas emissions (CO₂, N₂O), which are identified as the most significant negative impacts [4]. - Contrary to previous studies, local plant diversity is not a strong predictor of the impact of invasive plants; instead, the residence time of invasive species is crucial—longer residence times lead to greater declines in local plant diversity [4][6]. Group 2: Implications for Ecosystem Management - Local plant species diversity is sensitive to species invasions and shows the weakest resistance, thus should be prioritized for protection [6]. - The non-biological properties of soil become more variable with ongoing species invasions and may naturally recover, indicating that immediate intervention may not be necessary [6].