Setting Priorities for Monitoring and Managing Non-native Plants: Toward a Practical Approach

Setting Priorities for Monitoring and Managing Non-native Plants: Toward a Practical Approach
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确定监测和管理非本地植物的优先顺序:采取实用方法

DOI:
10.1007/s00267-016-0718-y
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发表时间:
2016
影响因子:
3.5
通讯作者:
Kollmann
Kollmann
中科院分区:
环境科学与生态学3区
文献类型:
--
作者:
Jeschke;Overbeck;Kollmann

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土地管理人员面临的挑战是,确定监测和管理非本地植物物种的优先事项,因为资源有限,并非所有的非本地植物都具有入侵性。现有的框架已被提出来排名非本地物种需要广泛的信息,其分布,丰度和影响。这些信息很难获得,并且对于许多物种和地区来说通常无法获得。国家监测或优先事项清单是有帮助的,但它们是否为区域一级的环境管理提供了足够的信息是值得怀疑的。因此,我们提出了一个决策树,排名物种的基础上更简单,虽然强大的信息,但仍然提供可靠的管理建议。为了测试决策树,我们收集和评估分布数据,从非本地植物在巴西南部高原草原。我们将结果与巴西入侵物种数据库的国家名单进行了比较,以讨论区域范围内不同方法的优缺点。在发现的38种非本地物种中,只有4种也出现在国家名单上。如果管理层仅仅依靠这个列表,许多根据决策树被确定为传播的物种将被忽视。根据建议的方案,可以对物种进行积极管理、监测或进一步评估。虽然国家清单当然很重要,但区域范围的管理应采用其他工具,充分考虑到非本地人成为入侵者的实际风险。
Land managers face the challenge to set priorities in monitoring and managing non-native plant species, as resources are limited and not all non-natives become invasive. Existing frameworks that have been proposed to rank non-native species require extensive information on their distribution, abundance, and impact. This information is difficult to obtain and often not available for many species and regions. National watch or priority lists are helpful, but it is questionable whether they provide sufficient information for environmental management on a regional scale. We therefore propose a decision tree that ranks species based on more simple albeit robust information, but still provides reliable management recommendations. To test the decision tree, we collected and evaluated distribution data from non-native plants in highland grasslands of Southern Brazil. We compared the results with a national list from the Brazilian Invasive Species Database for the state to discuss advantages and disadvantages of the different approaches on a regional scale. Out of 38 non-native species found, only four were also present on the national list. If management would solely rely on this list, many species that were identified as spreading based on the decision tree would go unnoticed. With the suggested scheme, it is possible to assign species to active management, to monitoring, or further evaluation. While national lists are certainly important, management on a regional scale should employ additional tools that adequately consider the actual risk of non-natives to become invasive.
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