Different management strategies are optimal for combating disease in East Texas cave versus culvert hibernating bat populations

Different management strategies are optimal for combating disease in East Texas cave versus culvert hibernating bat populations
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不同的管理策略对于东德克萨斯州洞穴与涵洞冬眠蝙蝠种群的疾病防治是最佳的

DOI:
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发表时间:
2019
影响因子:
3.1
通讯作者:
E. C. Campbell Grant
E. C. Campbell Grant
中科院分区:
环境科学与生态学3区
文献类型:
--
作者:
Riley F. Bernard;Jonah W. Evans;Nathan W. Fuller;Jonathan D Reichard;Jeremy T. H. Coleman;C. Kocer;E. C. Campbell Grant

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当管理行动的有效性存在不确定性时,对受新发传染病影响的物种的管理决策是具有挑战性的。野生动物管理者必须在减轻疾病的影响和对管理系统的其他方面的相关后果之间进行权衡。这一挑战的一个例子是对白鼻症(WNS)的反应,白鼻症是冬眠蝙蝠的一种疾病。引起WNS的真菌病原体--破坏性假单胞菌--继续在整个北美传播。德克萨斯州最近被证实这种真菌呈阳性,该州记录了33种蝙蝠物种,其中近一半对病原体天真。我们在德克萨斯公园和野生动物部的决定中明确纳入了多个管理目标、不确定性和风险,以管理德克萨斯州东部的三色蝙蝠(Perimyotis Subamius)的种群,这是一种高度易受WNS影响的物种。替代方案包括针对P.destructans或利益蝙蝠采取行动的个人行动,非主动管理选项,以及行动的组合。虽然我们的主要目标是为涵洞中的三色蝙蝠确定缓解WNS的措施,但我们也考虑了该决定对天然洞穴的可转移性。在这种情况下,对于涵洞和洞穴,最佳决策是不同的,“组合”行动组合被列为涵洞的最佳替代方案和针对洞穴的单一疫苗替代方案。由于这两个系统的最高管理层替代方案明显不同,考虑到每个管理决策的特点是相互竞争的目标的不同组合,找到具有广泛应用的治疗方法可能是不可行的。
Management decisions for species impacted by emerging infectious diseases are challenging when there are uncertainties in the effectiveness of management actions. Wildlife managers must balance trade‐offs between mitigating the effects of the disease and the associated consequences on other aspects of the managed system. An example of this challenge is exemplified in the response to white‐nose syndrome (WNS), a disease of hibernating bats. The fungal pathogen that causes WNS, Pseudogymnoascus destructans, continues to spread throughout North America. Texas, recently confirmed positive for the fungus, has documented 33 bat species in the state, with nearly half of those species naïve to the pathogen. We explicitly incorporated multiple management objectives, uncertainty, and risk in the Texas Parks and Wildlife Department decision to manage East Texas populations of the tri‐colored bat (Perimyotis subflavus), a species highly susceptible to WNS. Alternatives included individual actions that act against P. destructans or benefit bats, a no active management option, and combinations of actions. Although our main objective was to identify WNS mitigation measures for tri‐colored bats in culverts, we also considered the transferability of the decision for natural caves. In this scenario, the optimal decision differed for culverts and caves, with a “portfolio” combination of actions ranking as the best alternative for culverts and a single vaccine alternative for caves. Because the top management alternatives differed markedly between these two systems, finding treatments that have broad application is likely infeasible, given that each management decision is characterized by different mixtures of competing objectives.