Assisted colonization risk assessment

doi:10.1126/science.abj2682

GSTDTAP > 气候变化

DOI	10.1126/science.abj2682
	Assisted colonization risk assessment
	Anthony Ricciardi; Daniel Simberloff
	2021-05-28
发表期刊	Science
出版年	2021
英文摘要	In their Policy Forum “Global policy for assisted colonization of species” (30 April, p. [456][1]), J. F. Brodie and colleagues fail to acknowledge the difficulties in predicting the impacts of invasions, particularly the environmental context-dependencies that can render such forecasts unreliable ([ 1 ][2]), and they suggest the term “neonative” without addressing its potential misuse. Before endorsing guidance for assisted colonization, Brodie et al. should take these problems into account. The challenge of accurately predicting the consequences of species translocations cannot be understated. It is doubtful that any current risk assessment technique could predict, more often than not, whether a species threatened in its native range will become invasive when introduced to another region. For example, Monterey pine ( Pinus radiata ) are endangered in California and Mexico but invasive in both Australia and New Zealand; the banteng cattle ( Bos javanicus ) are endangered in Bali but invasive in Australia; Barbary sheep ( Ammotragus lervia ) and mouflon ( Ovis orientalis ) are endangered in their native ranges but invasive on the Canary Islands ([ 2 ][3]). Brodie and colleagues recommend revising the Convention on Biological Diversity policy to grant special status to populations translocated to regions beyond their native range through assisted colonization. They suggest categorizing these alien species as “neonatives,” a term recently proposed for species colonizing new areas on their own in response to anthropogenic environmental change ([ 3 ][4]). The practical and scientific value of the term has been vigorously debated ([ 4 ][5]). Further conflating an already problematic term and entrenching it into international biodiversity policy would create unnecessary confusion that weakens protection against invasive alien species. It would contribute to a long, slippery slope marked by attempts to define as “native,” for the purposes of policy, an alien species that someone sees as satisfying imprecise ad hoc criteria. For example, it must “naturalize ecologically” in its invaded region ([ 5 ][6]), develop “mutual dependence and controls” with some subset of native species ([ 6 ][7]), or be recognized as dangerous by native prey species ([ 7 ][8]). Finally, the policy would inevitably create conflict with conservation efforts to protect native biodiversity in the regions targeted for translocations—correctly described by Brodie and colleagues as “acts of invasion.” This proposal seems just as likely to hinder as to enhance global conservation efforts. 1. [↵][9]1. A. Ricciardi et al ., Environ. 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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/328845
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Anthony Ricciardi,Daniel Simberloff. Assisted colonization risk assessment[J]. Science,2021.
APA	Anthony Ricciardi,&Daniel Simberloff.(2021).Assisted colonization risk assessment.Science.
MLA	Anthony Ricciardi,et al."Assisted colonization risk assessment".Science (2021).