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Pollinators of the Great Plains: Disturbances, stressors, management, and research needs
Rangeland Ecology & Management ( IF 2.3 ) Pub Date : 2020-09-16 , DOI: 10.1016/j.rama.2020.08.006
Brice B. Hanberry , Sandra J. DeBano , Thomas N. Kaye , Mary M. Rowland , Cynthia R. Hartway , Donna Shorrock

Recent global declines of pollinator populations have highlighted the importance of pollinators, which are undervalued despite essential contributions to ecosystem services. To identify critical knowledge gaps about pollinators, we describe the state of knowledge about responses of pollinators and their foraging and nesting resources to historical natural disturbances and new stressors in Great Plains grasslands and riparian ecosystems. In addition, we also provide information about pollinator management and research needs to guide efforts to sustain pollinators and by extension, flowering vegetation, and other ecosystem services of grasslands. Although pollinator responses varied, pollinator specialists of disturbance-sensitive plants tended to decline in response to disturbance. Management with grazing and fire overall may benefit pollinators of grasslands, depending on many factors; however, we recommend habitat and population monitoring to assess outcomes of these disturbances on small, isolated pollinator populations. The influences and interactions of drought and increasingly variable weather patterns, pesticides, and domesticated bees on pollinators are complex and understudied. Nonetheless, habitat management and restoration can reduce effects of stressors and augment floral and nesting resources for pollinators. Research needs include expanding information about 1) the distribution, abundance, trends, and intraregional variability of most pollinator species; 2) floral and nesting resources critical to support pollinators; 3) implications of different rangeland management approaches; 4) effects of missing and reestablished resources in altered and restored vegetation; and 5) disentangling the relative influence of interacting disturbances and stressors on pollinator declines. Despite limited research in the Great Plains on many of these topics, consideration of pollinator populations and their habitat needs in management plans is critical now to reduce future pollinator declines and promote recovery.



中文翻译:

大平原的授粉媒介:干扰,压力源,管理和研究需求

近期全球传粉媒介数量的减少突显了传粉媒介的重要性,尽管对生态系统服务做出了重要贡献,但传粉媒介的价值却被低估了。为了确定有关授粉媒介的关键知识缺口,我们描述了有关授粉媒介及其在大平原草原和河岸生态系统中对历史自然干扰和新压力源的觅食和筑巢资源的反应的知识状态。此外,我们还提供有关传粉媒介管理和研究需求的信息,以指导维持传粉媒介的努力,并通过延伸,开花植被和草原的其他生态系统服务来指导。尽管授粉媒介的反应各不相同,但对干扰敏感的植物的授粉媒介专家往往会对干扰作出反应。放牧和火势的整体管理可能使草原的传粉者受益,这取决于许多因素。但是,我们建议对栖息地和种群进行监测,以评估这些小的干扰传粉媒介种群的干扰结果。干旱以及日益变化的天气模式,农药和家养蜂对授粉媒介的影响和相互作用是复杂且尚未充分研究的。但是,栖息地的管理和恢复可以减少胁迫因素的影响,并为传粉媒介增加花和巢的资源。研究需求包括扩大有关以下方面的信息:1)大多数传粉媒介物种的分布,丰度,趋势和区域内变异性;2)对支持传粉媒介至关重要的花卉和嵌套资源;3)不同牧场管理方法的含义;4)改变和恢复的植被中缺少和重建资源的影响;5)消除干扰和压力相互作用对授粉媒介衰退的相对影响。尽管在大平原上对许多这些主题的研究有限,但现在在管理计划中考虑授粉媒介种群及其栖息地需求对于减少未来的授粉媒介减少和促进恢复至关重要。

更新日期:2020-09-16
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