Implications of Sea Level Rise for Bee Communities in Rural Eastern Virginia Coastal Habitats

IF 0.2 4区 农林科学 Q4 ENTOMOLOGY Journal of the Kansas Entomological Society Pub Date : 2020-09-25 DOI:10.2317/0022-8567-92.4.602
Jessie A. Thuma, T. Roulston, L. Blum
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Abstract

ABSTRACT: In the coastal mid-Atlantic region of the USA, landscapes are a mosaic of upland habitats (woodland, grassland, old fields and farmland) and low-lying coastal salt marsh. Flooding and salinization of coastal areas due to sea-level rise result in the conversion of upland habitats to salt marsh, and change the relative proportion of habitat types surrounding coastal farmland. This has the potential to influence population sizes of organisms living in this area and could alter the ecosystem services, such as pollination, that these habitats provide. To examine the potential outcome of these habitat conversions, we used blue vane traps at 14 sites along the Eastern Shore of Virginia (USA) to compare the bee communities of salt marsh, old fields and agricultural fields. Although there was no difference among habitat types for total bee abundance per site, we found that the coastal marsh is depauperate in bee species relative to old fields and agricultural fields, and that the bee species using the marsh habitat tend to be specialists of plant families that are common in the marsh (Asteraceae and Malvaceae) but are relatively uncommon in local agriculture. Thus, the transition of upland areas to marsh not only has the potential to impact agricultural productivity directly through salt water intrusion, ultimately it may also reduce the species richness of native bees available to provide pollination services to coastal agriculture.
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海平面上升对弗吉尼亚州东部沿海栖息地蜜蜂群落的影响
摘要:美国大西洋中部沿海地区的景观是由高地生境(林地、草地、老田和农田)和低洼的沿海盐沼交织而成的。海平面上升导致沿海地区的洪水和盐碱化,导致高地生境向盐沼生境转变,改变了沿海农田周围生境类型的相对比例。这有可能影响生活在该地区的生物的种群规模,并可能改变这些栖息地提供的生态系统服务,例如授粉。为了研究这些栖息地转换的潜在结果,我们在美国弗吉尼亚州东海岸的14个地点使用了蓝叶片诱捕器,比较了盐沼、旧田和农田的蜜蜂群落。虽然各生境类型间蜜蜂总丰度没有差异,但我们发现,沿海沼泽的蜜蜂种类相对于旧田和农田来说是不足的,而且利用沼泽生境的蜜蜂往往是在沼泽中常见的植物科(菊科和锦葵科)的专家,而在当地农业中相对不常见。因此,高地地区向沼泽的转变不仅有可能通过盐水入侵直接影响农业生产力,最终还可能减少为沿海农业提供授粉服务的本地蜜蜂的物种丰富度。
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来源期刊
CiteScore
1.60
自引率
0.00%
发文量
12
审稿时长
>12 weeks
期刊介绍: The Journal of the Kansas Entomological Society is a publication of the Kansas (Central States) Entomological Society, publishes research on all aspects of the sciences of entomology, and has world-wide authorship and readership.
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