Effects of Pasture Improvement and Management on the Ground Beetle and Spider Communities of Upland Grasslands

(1) The effects of pasture improvement procedures and subsequent pesticide use on the ground beetle and spider faunas of semi-natural upland grasslands in Northumberland in 1985-87 were analysed using pitfall trapping and multivariate techniques. (2) The sites were classified and ordinated on the basis of their species lists of spiders and ground beetles. Stepwise linear discriminant analyses were used to identify the major environmental...