|| 要旨トップ | 目次 |||日本生態学会第63回全国大会 (2016年3月、仙台) 講演要旨
一般講演（口頭発表） F2-16 (Oral presentation)
Various cities around the world are now incorporating nature like green spaces to be included as one of the important urban elements for biodiversity conservation including Nagoya city. However, less attention had been given on the disservice aspect of this green space. With the increase of extermination report of hornet, one of disturbing pests in Nagoya city, we aimed to understand the effect of urban greenness on abundance of four hornet species in Nagoya city. Using eight years hornet abundance dataset at 11 observation points in Nagoya city, we analyzed the relationship between the abundance of the hornet and urban greenness of the city using Normalized Difference Vegetation Index (NDVI). We found all species responded positively to greenness level except V. analis, which was also abundant in residential areas. The abundance of hornets was best predicted with the NDVI averages of 1.0-2.0 km radius from sampling sites for all species. Consequently, dominant species altered from V. analis to V. mandarina with increasing NDVI average. This suggests that urban greenness can alter the hornet abundance and indirectly trigger human-hornet conflict in urban area. Our study highlights the importance of balancing ecosystem services and disservices for urban land use planning and management.