INCREASED POLLINATOR ACTIVITY IN URBAN GARDENS WITH MORE NATIVE FLORA
INCREASED POLLINATOR ACTIVITY IN URBAN GARDENS WITH MORE NATIVE FLORA
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DOI：
10.15666/aeer/1401_297310
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发表时间：
2016-01-01
影响因子：
0.7
通讯作者：
Simons, A. M.
中科院分区：
文献类型：
--
作者：
Fukase, J.;Simons, A. M.
传粉昆虫数量的减少已经成为一个主要的全球环境问题。近90%的开花植物依靠动物传粉者进行繁殖，传粉者减少对作物生产的负面影响已经显示出来。城市化至少是传粉者减少的部分原因，公共计划已经制定，以鼓励传粉者友好的花园。在这里，在一项观察性研究中，我们调查了传粉者的活动和本地物种的比例之间的关系，在未经处理的私人花园在城市地区。在整个生长季节，十个花园中的每一个都记录了九次传粉者活动。传粉者的频率不同的花园，访问与本地物种种植面积的百分比呈正相关，校正一年中的时间，植物密度和花园总面积的影响后。传粉者活动的比例本地植物面积的影响不同的传粉者公会，特别是强大的熊蜂和大蜜蜂。在这项相关性研究中，随着本地面积的增加，传粉者活动增加，这表明应鼓励在城市花园中种植本地植物物种。我们讨论，虽然这样的观察性研究具有现实的优势，他们不能确定潜在的因果因素驱动观察到的相关性。
Declining pollinator abundance has become a major global environmental concern. Almost 90% of flowering plants rely on animal pollinators for reproduction, and negative effects of pollinator declines on crop production have been shown. Urbanization is at least partially responsible for pollinator declines, and public programs have been developed to encourage pollinator-friendly gardens. Here, in an observational study, we investigate the relationship between pollinator activity and the proportion of native species in unmanipulated private gardens in an urban area. Pollinator activity in each of ten gardens was recorded at nine times throughout the growing season. Pollinator frequency differed among gardens, and visitation was positively associated with percent area planted with native species, after correcting for effects of time of year, plant density and total garden area. The effect of proportion native plant area on pollinator activity differed among pollinator guilds, and was particularly strong for bumble bees and large bees. The observation of heightened pollinator activity with increasing native area in this correlational study suggests that cultivating native plant species should be encouraged in urban gardens. We discuss that, although such observational studies have the advantage of realism, they cannot determine underlying causal factors driving the observed correlation.