Assessing five decades of garden bee studies

IF 2.4 Q3 ENVIRONMENTAL SCIENCES
Nicole C. S. Bell, John S. Ascher, Jen J.-M. Hayes, Mallory Mead, Gail A. Langellotto
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引用次数: 0

Abstract

Urban garden spaces are potentially important habitats for bee conservation. Gardens can host diverse flora, which provide floral resources across foraging seasons for bee species. Recent reviews have focused on the impacts of cityscapes on urban bee assemblages in different green spaces. Urban gardens are distinct from other urban green spaces, and bee communities in urban spaces have been an increasing topic of study over the past few decades. We reviewed 28 urban garden bee studies spanning five decades and 14 countries to compile an original metadataset of bee species' functional traits to understand the conservation value of gardens, identify gaps in bee sampling efforts, and summarize the calls to action included by their authors. Studies of urban garden bees have documented between 674 (conservative count, excluding morphospecies) and 830 (liberal count, including morphospecies) bee species. Urban garden bee communities were taxonomically and functionally diverse, although bee species that were non-eusocial, ground-nesting, generalist foragers, and native were most common in garden habitats. The proportion of parasitic bee species and specialist foragers found in urban gardens was comparable to proportions for global bee taxa. This suggests that gardens contain the hosts and forage needed to support bees with specialized life history requirements, and thus represent high quality habitat for a subset of bee communities. Garden bee research was strongly biased toward the northern hemisphere, which signifies a large gap in our understanding of garden bee communities in other regions. The variety of, and non-standard sampling methods in garden bee research makes it difficult to directly compare results between studies. In addition, both intentional low taxonomic resolution and a lack of collaboration with taxonomists constrains our understanding of bee diversity. Our analyses highlight both successes of past urban garden bee studies, and areas of opportunity for future research as we move into a sixth decade of garden bee research.
评估五十年来对花园蜜蜂的研究
城市花园空间是蜜蜂保护的潜在重要栖息地。花园可以容纳不同的植物群,这些植物群为蜜蜂提供了跨越觅食季节的花卉资源。近年来的研究主要集中在城市景观对城市蜜蜂在不同绿地上聚集的影响。城市花园不同于其他城市绿地,在过去的几十年里,城市空间中的蜜蜂群落已经成为一个越来越多的研究课题。我们回顾了跨越50年和14个国家的28个城市花园蜜蜂的研究,编译了一个原始的蜜蜂物种功能特征元数据集,以了解花园的保护价值,确定蜜蜂采样工作的差距,并总结了作者提出的行动呼吁。对城市花园蜜蜂的研究记录了674种(保守计数,不包括形态种)和830种(自由计数,包括形态种)蜜蜂。城市花园蜜蜂群落在分类和功能上多样化,但非群居、地面筑巢、多面手觅食和本地蜜蜂物种在花园栖息地中最常见。在城市花园中发现的寄生蜂种和专业觅食蜂的比例与全球蜜蜂分类群的比例相当。这表明,花园包含了支持具有特殊生活史需求的蜜蜂所需的宿主和饲料,因此代表了蜜蜂群落的一个子集的高质量栖息地。园蜂研究主要偏向北半球,这表明我们对其他地区园蜂群落的认识存在很大差距。园蜂研究中采样方法的多样性和不规范使得研究结果难以直接比较。此外,故意降低分类分辨率和缺乏与分类学家的合作限制了我们对蜜蜂多样性的理解。我们的分析强调了过去城市花园蜜蜂研究的成功,以及未来研究的机会领域,因为我们进入了花园蜜蜂研究的第六个十年。
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来源期刊
CiteScore
4.00
自引率
7.10%
发文量
176
审稿时长
13 weeks
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