入侵和城市化梯度对鸟类群落组成的影响

Q2 Social Sciences
Andrew M. Rogers, A. Griffin, Françoise Lermite, B. V. van Rensburg, Carla L. Archibald, S. Kark
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引用次数: 1

摘要

本地物种利用城市环境的程度取决于物种对多种威胁过程的反应。在这里,我们的目的是量化鸟类群落的变化,以响应栖息地结构的变化,入侵物种和侵略性的本地物种。我们在两个城市发展模式相似的独立入侵地区进行了调查。研究区域为澳大利亚的新南威尔士州(NSW)和昆士兰州(QLD)。在新南威尔士州有127种,在昆士兰州有144种。大多数种类(NSW 83和QLD 84)是城市适应者,利用部分或全部城市亚环境。城市回避者仅在残余植被中发现,是第二大类群(城市回避者:NSW 23和QLD 31)。我们发现,大多数城市地区的丰富度最低(城市剥削者:新南威尔士州10和昆士兰州15)。利用广义线性混合模型,我们发现物种丰富度与侵略性物种(如普通八甲和吵闹的采矿者)的丰度呈不显著的相关关系,但与一个站点的灌木覆盖百分比呈显著的正相关关系。随着城市化进程的加快,物种逐渐减少,保持城市地区较高的植被结构复杂性将支持大量物种,并有助于减轻侵略性城市适应物种和栖息地丧失的潜在影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The role of invasion and urbanization gradients in shaping avian community composition
The extent to which native species utilize urban environments depends on species responses to multiple threatening processes. Here, we aimed to quantify changes in bird communities in response to changing habitat structure, invasive species and aggressive native species. We conducted surveys in two independently invaded regions with similar patterns of urban development. The study regions were New South Wales (NSW) and Queensland (QLD), Australia. We observed 127 species in NSW and 144 species in QLD. Most species (NSW 83 and QLD 84) are urban adapters making use of some or all urban sub-environments. Urban avoiders, species only found in remnant vegetation, were the second largest group (urban avoiders: NSW 23 and QLD 31). We found the lowest richness in the most urban sites (urban exploiters: NSW 10 and QLD 15). Using generalized linear mixed models, we found a non-significant relationship between species richness and the abundance of aggressive species like the common myna and noisy miners, Manorina melanocephala, but a significant positive correlation with the percentage of shrub cover at a site. As there is a gradual loss of species with increasing urbanization, retaining higher complexity in vegetation structure in urban areas will support large numbers of species and could help mitigate the potential impacts of aggressive urban-adapted species and habitat loss.
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来源期刊
Journal of Urban Ecology
Journal of Urban Ecology Social Sciences-Urban Studies
CiteScore
4.50
自引率
0.00%
发文量
14
审稿时长
15 weeks
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