The role of local and landscape level factors in determining bumblebee abundance and richness
The role of local and landscape level factors in determining bumblebee abundance and richness
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当地和景观水平因素在确定大黄蜂丰度和丰富度中的作用
DOI：
10.17109/azh.62.4.387.2016
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发表时间：
2016
影响因子：
0.8
通讯作者：
F. Samu
中科院分区：
文献类型：
--
作者：
M. Sárospataki;Réka Bakos;A. Horváth;D. Neidert;V. Horváth;Dóra Vaskor;É. Szita;F. Samu
野生蜜蜂是授粉生态系统服务的重要贡献者，但它们特别容易受到农业集约化的影响，导致自然栖息地的丧失和破碎。我们监测熊蜂种群（熊蜂属）。在14个草原补丁纳入农业栖息地镶嵌在Mezelbow褶皱地区，匈牙利。我们问大黄蜂种群如何受到当地植被质量和存在的各种景观元素，包括在农业环境计划领域，在不同的空间尺度。分层分析表明，植被质量，特别是缺乏杂草，是最重要的当地因素，积极影响熊蜂丰度和物种数量。我们没有发现显着的景观尺度效应之间的50-250米。500-1000 m草地面积对物种丰富度有显著的正向影响。在2公里尺度上，可耕地的范围对丰度和丰富度都有负面影响。较高比例的耕地面积在景观中参与农业环境计划对熊蜂丰度或物种丰富度没有积极影响。考虑到所有的本地和景观效应及其可能的相互作用，模型选择和方差划分显示，本地因素是最重要的决定因素熊蜂丰富度和丰度。地方和景观因素有很高的共享方差，但没有相互作用。本研究表明，小规模的景观组成的重要性最低，但较大规模的景观组成是显着的，最有可能是因为熊蜂可以觅食远离他们的巢。如果我们能够提供优质的草地斑块纳入农业栖息地马赛克，那么我们可以建立在熊蜂的强烈溢出倾向，并可以期待他们的贡献，各种作物的授粉。
Wild bees are important contributors to the pollination ecosystem service, but they are especially vulnerable to agricultural intensification which causes the loss and fragmentation of natural habitats. We monitored bumblebee populations (Bombus spp.) in 14 grassland patches incorporated into the agricultural habitat mosaic in the Mezőfold region, Hungary. We asked how bumblebee populations were affected by local vegetation quality and the presence of various landscape elements, including fields in agri-environmental schemes, at various spatial scales. A stratified analysis revealed that vegetation quality, especially the lack of weeds, was the most important local factor that positively affected both bumblebee abundance and species number. We found no significant landscape scale effects between 50–250 m. Between 500–1000 m grassland area in the landscape had consistently significant positive effect on species richness. At the 2 km scale the extent of arable fields had a negative impact on both abundance and richness. A higher percentage area of arable fields in the landscape participating in agri-environmental schemes had no positive effect on bumblebee abundance or species richness. Considering all local and landscape effects and their possible interactions, model selection and variance partitioning revealed that local factors were the most important determinants of bumblebee richness and abundance. Local and landscape factors had high shared variance but did not interact with each other. The present study indicated that small scale landscape composition had the lowest importance, but larger scale landscape composition was significant, most likely because bumblebees can forage far from their nests. If we are able to provide good quality grassland patches incorporated into the agricultural habitat mosaic, then we can build on the strong spill over propensity of bumblebees and can expect their contribution to the pollination of various crops.
影响因子：
3.3
作者：
Heard, M. S.;Carvell, C.;Bourke, A. F. G.
通讯作者：
Bourke, A. F. G.