关键词: 地理加权回归, 渤海, 沙氏下鱵鱼仔稚鱼, 栖息地适宜指数

Abstract: From May to October 2015, an investigation was made into the grassland fauna communities and avian diversity in three habitats at Fuyang Airport. In total, 12 orders of grassland fauna were found. Orthoptera were dominant, making up 49.5% of the total catches. In addition, common groups included Diptera, Coleoptera, Homoptera, Lepidoptera and Araneae, making up 39.8% of the total number. In terms of total mass, Orthoptera were also the main group, accounting for 80.1% of the total mass of the grassland fauna. Among the three habitats, the mass and diversity were the greatest in grassland, which was the key area for the prevention of the grassland animals. Correlation analysis found a significant relationship (r=0.881, P=0.021) between the number of insectivorous birds and total mass of Orthoptera. Orthoptera is the main prevention object and May is the best time to spray pesticide. The total mass of the grassland fauna and the number of insectivorous birds were the highest in August, which is the key period for prevention and control of bird strike.

Key words: habitat suitability index, larvalJapanese Halfbeak., geographically weighted regression, Bohai Sea