Are roads and railroads barriers to bumblebee movement in a temperate suburban conservation area?
Are roads and railroads barriers to bumblebee movement in a temperate suburban conservation area?
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DOI：
10.1016/s0006-3207(02)00130-1
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发表时间：
2003-01-01
影响因子：
5.9
通讯作者：
Gerwein, J
中科院分区：
文献类型：
--
作者：
Bhattacharya, M;Primack, RB;Gerwein, J
我们调查了生境破碎化如何影响在波士顿市区温带保护区的植物斑块之间的标记大黄蜂的运动。麻萨诸塞州。本研究以道路与天然林地分隔的甜椒丛（Clethra alnifolia L. f.）种群为研究对象。和被铁路隔开的钮扣灌木（Cephalanthus occidentalis L.）。大黄蜂表现出高度的地点保真度，很少穿过道路或铁路。当蜜蜂捕获一个甜椒丛种群时，将它们转移到另一个甜椒丛种群并释放，它们会回到原来的位置，其中一些在捕获后20分钟内返回。当所有的花序从一个甜椒丛斑块移除。研究结果表明，虽然大黄蜂有穿越公路和铁路的能力，但这些人类结构可能会限制大黄蜂的行动，并破坏植物种群，因为觅食蜜蜂表现出天生的地点保真度。此外，被标记的蜜蜂几乎从未被观察到在种群之间移动，除非它们被转移，或者被迫寻找额外的觅食地点。(C) 2002 Elsevier Science Ltd.版权所有。
We investigated how habitat fragmentation affects the movement of marked bumblebees between plant patches in a temperate conservation area in metropolitan Boston. Massachusetts. Our studs was conducted on populations of sweet pepperbush (Clethra alnifolia L. f.) separated by a road and natural woodland. and buttonbush (Cephalanthus occidentalis L.) separated by a railroad. Bumblebees showed high site fidelity and only rarely crossed roads or railroads. When bees captured Lit one sweet pepperbush population were moved across a road to a ne sweet pepperbush population and released, them returned to their original site, some within 20 min of their Capture. When all inflorescences were removed from one sweet pepperbush patch. most bees moved to another sweet pepperbush population on the same side of the road, The results show that while bumblebees have the ability to cross a road and railroad, these human structures may restrict bumblebee movement and act to fragment plant populations because of the innate site fidelity displayed by foraging bees. Moreover, marked bees were almost never observed to move between populations unless they were displaced, or forced to seek additional forage sites. (C) 2002 Elsevier Science Ltd. All rights reserved.