小五台山国家级自然保护区环境因素对昆虫群落分布的影响

Effects of Environmental Factors on Distribution of Insect Communityin the State Natural Reserve of Xiaowutai Moutain

以小五台山国家级自然保护区昆虫群落作为研究对象,通过实地调查,研究了不同气候条件、不同海拔、不同生境对昆虫群落分布的影响.结果表明,阳坡群落的稳定性大于阴坡群落的稳定性;昆虫群落的数量及丰富度在不同时间不同生境条件,在较低海拔及较高海拔表现出的趋势不太相同,但都以1 400～1 500m为界,表现出不同的趋势;昆虫数量及丰富度在温度因素及湿度因素上均未表现出规律性：由昆虫种群数量时间动态分析结果表明,昆虫数量并非都在温度较高的8月达到高峰期.

The insect community of state natural reserve of Xiaowutai mountain was selected and the relation between insect distribution and environmental factors was studied by field survey.The result showed that the community stability of the adret was higher than that of the ubac.The quantity and abundance of insect community presents different trend on different time and habitats in lower and higher altitude that bordered by the height of 1 400～1 500 m,which did not represent regularity in humidity and temperature facters.The insect quantity did not reach the peak in higher temperature at August.