Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.15442 |
Two centuries for an almost complete community turnover from native to non‐native species in a riverine ecosystem | |
Phillip J. Haubrock; Francesca Pilotto; Gianna Innocenti; Simone Cianfanelli; Peter Haase | |
2020-12-07 | |
发表期刊 | Global Change Biology
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出版年 | 2020 |
英文摘要 | Non‐native species introductions affect freshwater communities by changing community compositions, functional roles, trait occurrences and ecological niche spaces. Reconstructing such changes over long periods is difficult due to limited data availability. We collected information spanning 215 years on fish and selected macroinvertebrate groups (Mollusca and Crustacea) in the inner‐Florentine stretch of the Arno River (Italy) and associated water grid, to investigate temporal changes. We identified an almost complete turnover from native to non‐native fish (1800: 92% native; 2015: 94% non‐native species) and macroinvertebrate species (1800: 100% native; 2015: 70% non‐native species). Non‐native fish species were observed ~50 years earlier compared to macroinvertebrate species, indicating phased invasion processes. In contrast, α‐diversity of both communities increased significantly following a linear pattern. Separate analyses of changes in α‐diversities for native and non‐native species of both fish and macroinvertebrates were nonlinear. Functional richness and divergence of fish and macroinvertebrate communities decreased non‐significantly, as the loss of native species was compensated by non‐native species. Introductions of non‐native fish and macroinvertebrate species occurred outside the niche space of native species. Native and non‐native fish species exhibited greater overlap in niche space over time (62%–68%) and non‐native species eventually replaced native species. Native and non‐native macroinvertebrate niches overlapped to a lesser extent (15%–30%), with non‐natives occupying mostly unoccupied niche space. These temporal changes in niche spaces of both biotic groups are a direct response to the observed changes in α‐diversity and species turnover. These changes are potentially driven by deteriorations in hydromorphology as indicated by alterations in trait modalities. Additionally, we identified that angling played a considerable role for fish introductions. Our results support previous findings that the community turnover from native to non‐native species can be facilitated by, for example, deteriorating environmental conditions and that variations in communities are multifaceted requiring more indicators than single metrics. |
领域 | 气候变化 ; 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/308161 |
专题 | 气候变化 资源环境科学 |
推荐引用方式 GB/T 7714 | Phillip J. Haubrock,Francesca Pilotto,Gianna Innocenti,等. Two centuries for an almost complete community turnover from native to non‐native species in a riverine ecosystem[J]. Global Change Biology,2020. |
APA | Phillip J. Haubrock,Francesca Pilotto,Gianna Innocenti,Simone Cianfanelli,&Peter Haase.(2020).Two centuries for an almost complete community turnover from native to non‐native species in a riverine ecosystem.Global Change Biology. |
MLA | Phillip J. Haubrock,et al."Two centuries for an almost complete community turnover from native to non‐native species in a riverine ecosystem".Global Change Biology (2020). |
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