caa a22 4500 38803601X CHVBK 20180307125004.0 cr unu---uuuuu 161130e199806 xx s 000 0 eng 10.1017/S0007485300025918 doi S0007485300025918 pii (NATIONALLICENCE)cambridge-10.1017/S0007485300025918 Holland J.M. The Game Conservancy Trust, Fordingbridge, Hampshire, SP6 1EF, UK The effectiveness of exclusion barriers for polyphagous predatory arthropods in wheat [Elektronische Daten] [J.M. Holland] Vertical polythene exclusion barriers combined with trapping out using pitfall traps have been used to create enclosures within which arthropod numbers can be manipulated. This technique has been primarily used to investigate the impact of ground-dwelling polyphagous arthropods on cereal pests. Arthropod numbers in a total of 42 enclosed areas were compared to adjacent unenclosed areas over three years in Hampshire, UK. A range of arthropod monitoring techniques was used, including pitfall traps, fenced pitfall traps and D-vac suction samples. The enclosures were effective in reducing most species of Carabidae, Linyphiidae and Lycosidae encountered and numbers in pitfall traps were reduced by an average of 74%, 62% and 77% respectively. Similar reductions in densities of these taxa were found. Staphylinidae were less effected with an average reduction of only 32% in pitfall traps, although Philonthus species were reduced by 82%. Results were compared to previous studies. Copyright © Cambridge University Press 1998 Bulletin of Entomological Research Cambridge University Press 88/3(1998-06), 305-310 0007-4853 88:3<305 1998 88 BER https://doi.org/10.1017/S0007485300025918 text/html Onlinezugriff via DOI 1 review-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0007485300025918 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Holland J.M. The Game Conservancy Trust, Fordingbridge, Hampshire, SP6 1EF, UK NATIONALLICENCE 773 0- Bulletin of Entomological Research Cambridge University Press 88/3(1998-06), 305-310 0007-4853 88:3<305 1998 88 BER CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge