...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Conservation Biology >Identifying and Managing Threatened Invertebrates through Assessment of Coextinction Risk
【24h】

Identifying and Managing Threatened Invertebrates through Assessment of Coextinction Risk

机译：通过评估共灭风险来识别和管理受威胁的无脊椎动物

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Invertebrates with specific host species may have a high probability of extinction when their hosts have a high probability of extinction. Some of these invertebrates are more likely to go extinct than their hosts, and under some circumstances, specific actions to conserve the host may be detrimental to the invertebrate. A critical constraint to identifying such invertebrates is uncertainty about their level of host specificity. We used two host-breadth models that explicitly incorporated uncertainty in the host specificity of an invertebrate species. We devised a decision protocol to identify actions that may increase the probability of persistence of a given dependent species. The protocol included estimates from the host-breadth models and decision nodes to identify cothreatened species. We applied the models and protocol to data on 1055 insects (186 species) associated with 2 threatened (as designated by the Australian Government) plant species and 19 plant species that are not threatened to determine whether any insect herbivores have the potential to become extinct if the plant becomes extinct. According to the host-breadth models, 18 species of insect had high host specificity to the threatened plant species. From these 18 insects, the decision protocol highlighted 6 species that had a high probability of extinction if their hosts were to become extinct (3% of all insects examined). The models and decision protocol have added objectivity and rigor to the process of deciding which dependent invertebrates require conservation action, particularly when dealing with largely unknown and speciose faunas.
机译：具有特定寄主物种的无脊椎动物在其寄主具有高度灭绝可能性时可能具有高度灭绝的可能性。这些无脊椎动物中的一些比其宿主更容易灭绝，并且在某些情况下，保护宿主的特定行动可能对无脊椎动物有害。识别此类无脊椎动物的关键限制因素是其宿主特异性水平的不确定性。我们使用了两个寄主宽度模型，这些模型明确将不确定性纳入无脊椎动物物种的寄主特异性中。我们设计了一种决策协议，以识别可能增加给定依赖物种持久性的可能性的行动。该协议包括来自主机宽度模型和决策节点的估计，以识别受到威胁的物种。我们将模型和协议应用于1055种昆虫（186种）与2种受威胁（澳大利亚政府指定）的植物物种和19种未受到威胁的植物物种相关的数据，以确定是否存在任何食草动物可能灭绝。植物灭绝了。根据寄主宽度模型，有18种昆虫对受威胁植物具有很高的寄主特异性。在这18种昆虫中，决策方案强调了6个物种，如果它们的寄主要灭绝，则灭绝的可能性很高（占所有昆虫的3％）。该模型和决策协议在确定哪些从属无脊椎动物需要采取保护行动的过程中增加了客观性和严格性，尤其是在处理很大程度上未知和特殊的动物时。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号