A comparison of bee communities of Chicago green roofs, parks and prairies
A comparison of bee communities of Chicago green roofs, parks and prairies
复制标题
芝加哥绿色屋顶、公园和草原蜜蜂群落比较
DOI：
10.1016/j.landurbplan.2011.07.004
复制
发表时间：
2011
影响因子：
9.1
通讯作者：
D. Larkin
中科院分区：
文献类型：
--
作者：
Rebecca K. Tonietto;J. Fant;J. Ascher;Katherine E Ellis;D. Larkin
由于自然生境的丧失，人类主导的绿色空间对支持生物多样性的重要性可能会增加。我们评估了城市“绿色屋顶”在芝加哥地区的本地传粉者保护的潜在价值，比较它们与高草草原自然区和传统的城市公园绿色空间的参考栖息地。我们发现，本地蜜蜂是目前的绿色屋顶，虽然在较低的丰度和多样性比参考栖息地。绿屋顶和草原蜜蜂群落是不同的，而在公园的中间和类似的其他两个栖息地类型。蜜蜂群落格局与生境特征在网站和景观尺度。总体而言，蜜蜂的丰度和物种丰富度增加了更大比例的绿色空间在周围的景观。然而，这种关系消失的情况下，绿色空间占主导地位的草坪草。在网站规模，蜜蜂受益于更大的植物多样性，蜜蜂和植物群落组成显着相关。绿色屋顶是城市地区蜜蜂保护的潜在有价值的场所，特别是如果种植各种各样的本地杂类草提供觅食资源，并设计成适应不同筑巢习惯的蜜蜂。
Due to loss of natural habitats, human-dominated green spaces are likely to increase in importance for biodiversity support. We assessed the potential value of urban “green roofs” for native pollinator conservation in the Chicago region, comparing them with reference habitats of tallgrass prairie natural areas and traditional city-park green spaces. We found that native bees are present on green roofs, though at lower abundance and diversity than in reference habitats. Green-roof and prairie bee communities were distinct from each other, while those in parks were intermediate and similar to the other two habitat types. Bee-community patterns were related to habitat characteristics at both the site and landscape scales. Overall, bee abundance and species richness increased with greater proportions of green space in the surrounding landscape. However, this relationship disappeared in cases where green space was dominated by turf grass. At the site scale, bees benefited from greater plant diversity, and bee and plant-community composition were significantly correlated. Green roofs are potentially valuable sites for bee conservation in urban areas, particularly if planted with diverse native forbs to provide foraging resources, and designed to accommodate bees with different nesting habits.