Changes in carabid beetle assemblages across an urban-rural gradient in Japan
Changes in carabid beetle assemblages across an urban-rural gradient in Japan
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DOI：
10.1034/j.1600-0587.2003.03436.x
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发表时间：
2003-08-01
期刊：
影响因子：
5.9
通讯作者：
Niemelä, J
中科院分区：
文献类型：
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作者：
Ishitani, M;Kotze, DJ;Niemelä, J
作为国际Globenet项目的一部分，步甲甲虫（鞘翅目，步甲科）收集使用陷阱从四个城市，四个郊区和四个农村网站在广岛市，日本，在2001年夏季。与预期一致，步甲丰度和物种丰富度显着下降，从农村到城市的网站。此外，没有大型的，只有少数个体的中型专业物种从城市环境中收集，而许多标本的中型和一些大型专业物种从郊区和农村网站收集。广岛市的特点是中型多面手步甲，而郊区和农村环境的特点是小型多面手甲虫。这些结果不适用于物种水平。总之，我们发现了一个显着的影响，城市化的组成步甲甲虫组合在广岛市。这些变化与之前在索菲亚（保加利亚）、埃德蒙顿（加拿大）和赫尔辛基（芬兰）进行的研究中发现的变化相似。因此，城市化似乎对世界各地的步甲群落有一些类似的和可预测的影响。
As part of the international Globenet project, carabid beetles (Coleoptera, Carabidae) were collected using pitfall traps from four urban, four suburban and four rural sites in Hiroshima City, Japan, during the 2001 summer season. In agreement with expectation, carabid abundance and species richness decreased significantly from rural to urban sites. Furthermore, no large, and only few individuals of medium-sized specialist species were collected from the urban environment, while many specimens of medium-sized and some large-sized specialist species were collected from the suburban and rural sites. Hiroshima city was characterised by medium-sized generalist carabids, while the suburbs and the rural environments were characterised by small-sized generalist beetles. These results did not apply at the species level. To summarise, we found a significant effect of urbanisation on the composition of carabid beetle assemblages in Hiroshima City. These changes were similar to those found in previous studies performed in Sofia (Bulgaria), Edmonton (Canada) and Helsinki (Finland). Thus, it appears that urbanisation has some similar and predictable effects on carabid assemblages in various parts of the world.