Mass-flowering crops enhance wild bee abundance.
Mass-flowering crops enhance wild bee abundance.
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质量花的作物增强了野生蜜蜂的丰度。
DOI：
10.1007/s00442-012-2515-5
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发表时间：
2013-06
期刊：
影响因子：
2.7
通讯作者：
Steffan-Dewenter, Ingolf
中科院分区：
文献类型：
--
作者：
Holzschuh, Andrea;Dormann, Carsten F.;Tscharntke, Teja;Steffan-Dewenter, Ingolf
虽然农业栖息地可以提供大量的食物资源传粉物种，农业和（半）自然栖息地之间的联系，通过扩散和觅食运动几乎没有研究。在67个研究地点，我们评估了大量开花油菜田和半自然草原在不同的空间尺度之间的相互作用，以及它们对一个孤独的洞穴筑巢蜜蜂的育雏细胞的数量的影响。与与草地隔离的农田相比，当草地靠近油菜田时，双角壁蜂在油菜田中定殖陷阱巢的概率从12%增加到59%。在草地上，O.与隔离草地相比，当与油菜相邻时，陷阱巢中的双角虫高出55%。油菜花粉在幼虫食物中的百分比在油菜田和与油菜相邻的草地中高于孤立的草地。在油菜田和草地上，卵细胞的数量与幼虫食物中油菜花粉的百分比呈正相关。我们表明，大规模开花的农业栖息地，即使他们是集中管理，可以大大提高了丰富的一个孤独的蜜蜂物种筑巢在附近的半自然栖息地。我们的研究结果表明，农业栖息地的积极影响被低估，可能是非常常见的（至少）的多面手物种组成的农业和半自然栖息地的混合物的景观。这些影响也可能有-到目前为止被忽视-影响种间竞争和互惠互利的相互作用，在半自然的栖息地。本文的在线版本（doi：10.1007/s 00442 -012-2515-5）包含补充材料，可供授权用户使用。
Although agricultural habitats can provide enormous amounts of food resources for pollinator species, links between agricultural and (semi-)natural habitats through dispersal and foraging movements have hardly been studied. In 67 study sites, we assessed the interactions between mass-flowering oilseed rape fields and semi-natural grasslands at different spatial scales, and their effects on the number of brood cells of a solitary cavity-nesting bee. The probability that the bee Osmia bicornis colonized trap nests in oilseed rape fields increased from 12 to 59 % when grassland was nearby, compared to fields isolated from grassland. In grasslands, the number of brood cells of O. bicornis in trap nests was 55 % higher when adjacent to oilseed rape compared to isolated grasslands. The percentage of oilseed rape pollen in the larval food was higher in oilseed rape fields and grasslands adjacent to oilseed rape than in isolated grasslands. In both oilseed rape fields and grasslands, the number of brood cells was positively correlated with the percentage of oilseed rape pollen in the larval food. We show that mass-flowering agricultural habitats—even when they are intensively managed—can strongly enhance the abundance of a solitary bee species nesting in nearby semi-natural habitats. Our results suggest that positive effects of agricultural habitats have been underestimated and might be very common (at least) for generalist species in landscapes consisting of a mixture of agricultural and semi-natural habitats. These effects might also have—so far overlooked—implications for interspecific competition and mutualistic interactions in semi-natural habitats. The online version of this article (doi:10.1007/s00442-012-2515-5) contains supplementary material, which is available to authorized users.
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影响因子：
5
作者：
Morandin, LA;Winston, ML
通讯作者：
Winston, ML
影响因子：
1.6
作者：
Jauker, Frank;Bondarenko, Birgit;Steffan-Dewenter, Ingolf
通讯作者：
Steffan-Dewenter, Ingolf
影响因子：
6.3
作者：
Rand, Tatyana A.;Louda, Svata A.
通讯作者：
Louda, Svata A.
影响因子：
2.7
作者：
Gladbach, David J.;Holzschuh, Andrea;Scherber, Christoph;Thies, Carsten;Dormann, Carsten F.;Tscharntke, Teja
通讯作者：
Tscharntke, Teja
影响因子：
2.2
作者：
Cook, SM;Awmack, CS;Williams, IH
通讯作者：
Williams, IH