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首页> 外文期刊>Landscape and Urban Planning >Environmental factors affecting the composition and diversity of avian community in mid- to late breeding season in urban parks and green spaces.
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Environmental factors affecting the composition and diversity of avian community in mid- to late breeding season in urban parks and green spaces.

机译：在城市公园和绿色空间中繁殖季节的中后期，影响鸟类群落组成和多样性的环境因素。

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摘要

The importance of biodiversity in urban parks and green spaces has been increasingly emphasized. In this study, we focused on the avian community in urban parks and green spaces and aimed to elucidate its characteristics and affecting factors. Specific questions addressed are, (1) What ecological traits feature the avian communities in urban parks and green spaces? (2) What environmental factors are important in changing the structure or avian communities in urban area, such as species diversity and guild structure. The study sites were 20 urban parks or green spaces located in central urban area in Sendai, northern Japan. Bird surveys were conducted from middle to late breeding season. We measured environmental factors of stand and landscape level, including water related environment. The overall species number decreased in highly urbanized area, while diversity index (H') increased, probably because the species with low frequency did not occur in urban environment and increased equitability of the community. The result of CCA revealed that the characteristics of avian communities in Sendai City were determined by the prevalence of water-related environments and the predominance level of urban environment. Insectivores and foliage foraging species contributed to increasing overall species number, while ground foraging species negatively affected to the overall avian diversity of a community. These findings suggested that increased shrub in stand level was effective to increase the overall species number, and to be considered future design of the city parks.
机译：人们日益强调了生物多样性在城市公园和绿色空间中的重要性。在这项研究中，我们重点研究了城市公园和绿色空间中的鸟类群落，旨在阐明其特征和影响因素。具体解决的问题是：（1）城市公园和绿地中的鸟类群落具有哪些生态特征？ （2）哪些环境因素对于改变城市地区的鸟类结构或鸟类群落很重要，例如物种多样性和行会结构。研究地点是位于日本北部仙台市中心地区的20个城市公园或绿地。鸟类调查是在繁殖中期到后期进行的。我们测量了林分和景观水平的环境因素，包括与水相关的环境。在高度城市化的地区，物种总数减少了，而多样性指数（ H'）却增加了，这可能是因为城市环境中没有出现频率较低的物种，并且增加了社区的公平性。 CCA结果表明，仙台市鸟类群落的特征取决于与水有关的环境的流行和城市环境的优势水平。食虫和观叶觅食物种促进了总体物种数量的增加，而地面觅食物种对群落的总体鸟类多样性产生了负面影响。这些发现表明，增加林分水平的灌木有效增加了物种总数，并被认为是城市公园的未来设计。

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