Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.15467 |
Ranking alien species based on their risks of causing environmental impacts: A global assessment of alien ungulates | |
Lara Volery; Divija Jatavallabhula; Laura Scillitani; Sandro Bertolino; Sven Bacher | |
2020-12-30 | |
发表期刊 | Global Change Biology |
出版年 | 2020 |
英文摘要 | For an efficient allocation of the limited resources to alien species management, the most damaging species should be prioritised. Comparing alien species based on their impacts is not straightforward, as the same species can cause different types and magnitudes of impacts when introduced to different contexts, making it difficult to summarise its overall impact. The Environmental Impact Classification for Alien Taxa (EICAT) systematically summarises and compares detrimental impacts caused by alien populations to native biota and has been adopted by the International Union for Conservation of Nature. For each alien species, all reported impacts to native populations within the introduced range are classified into five levels of severity, from negligible impact to irreversible local extinction. Currently, EICAT only compares alien species based on their highest impact, thereby ignoring variation in impact magnitudes. Here, we used information on the variation in impact magnitudes of alien species to estimate their risks to cause high impacts if introduced to a novel environment. We demonstrate the usefulness of this approach by classifying the global impacts of alien ungulates. We found impact reports for 27 of the 66 alien ungulate species established worldwide, highlighting substantial knowledge gaps in invasion science. We classified a total of 441 impacts to native fauna and flora caused by these 27 species. Twenty‐six of the species were found to cause harmful impacts (native population declines or local extinctions). Mouflon (Ovis orientalis, Gmelin, 1774) and dromedary (Camelus dromedarius, Linnaeus, 1758) had a higher risk of causing local extinctions if introduced to a novel environment than sika deer (Cervus nippon, Temminck, 1838) and goats (Capra hircus, Linnaeus, 1758). Including risk of high impacts allows to discriminate among species with the same EICAT classification and improves alien species prioritisation for management. |
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/311335 |
专题 | 气候变化 资源环境科学 |
推荐引用方式 GB/T 7714 | Lara Volery,Divija Jatavallabhula,Laura Scillitani,et al. Ranking alien species based on their risks of causing environmental impacts: A global assessment of alien ungulates[J]. Global Change Biology,2020. |
APA | Lara Volery,Divija Jatavallabhula,Laura Scillitani,Sandro Bertolino,&Sven Bacher.(2020).Ranking alien species based on their risks of causing environmental impacts: A global assessment of alien ungulates.Global Change Biology. |
MLA | Lara Volery,et al."Ranking alien species based on their risks of causing environmental impacts: A global assessment of alien ungulates".Global Change Biology (2020). |
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