Habitat use and conservation of bumblebees (Bombus spp.) under different grassland management regimes
Habitat use and conservation of bumblebees (Bombus spp.) under different grassland management regimes
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DOI：
10.1016/s0006-3207(01)00114-8
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发表时间：
2002-01-01
影响因子：
5.9
通讯作者：
Carvell, C
中科院分区：
文献类型：
--
作者：
Carvell, C
在英国和欧洲，几种大黄蜂的自然种群数量的下降越来越引起人们的关注。本研究调查了大黄蜂在索尔兹伯里平原训练区的栖息地利用情况，索尔兹伯里平原训练区是欧洲西北部最大的未改良粉笔草原残留区。影响熊蜂总体丰富度、物种丰富度和觅食活动的生境特征包括开花植物物种(特别是受欢迎的饲用植物如红三叶)的多样性和丰富度、植被结构和高度。这表明不同的熊蜂物种根据它们特定的觅食和筑巢需求而对这些栖息地特征做出反应，其中尤以矮熊熊为例。考虑了几种草原管理做法对保护大黄蜂栖息地的适宜性。尽管放牧的时机和强度很重要，但放牧牛比放羊和没有任何管理措施更可取。车辆活动造成的小范围干扰也有助于在管理较少的草原上生产当地丰富的牧草资源。(C)2001爱思唯尔科学有限公司。保留所有权利。
Declines in (lie natural populations of several bumblebee species across Britain and Europe are an increasing cause for concern. In this study the habitat use of bumblebees was investigated on Salisbury Plain Training Area, the largest remaining area of unimproved chalk grassland in north-west Europe. Habitat characteristics influencing the overall abundance, species richness and foraging activity of bumblebees included the diversity and abundance of flowering plant species (particularly of favoured forage plants such as Trifolium pratense), vegetation structure and height. It is suggested that different Bombus species respond to these habitat characteristics depending on their specific foraging and nesting requirements, the case of Bombus humilis being especially relevant. The effects of several grassland management practices were considered in terms of their suitability for the conservation of bumblebee habitats. Cattle grazing was shown to be preferable to both sheep grazing and the absence of any management, although the timing and intensity of such grazing was important. Small-scale disturbances caused by vehicle activity were also of value in producing locally abundant forage resources in less intensively managed grasslands. (C) 2001 Elsevier Science Ltd. All rights reserved.