The Influence of Soil Type and Pine Species on the Carabid Community of a Plantation Forest with a History of Pine Beauty Moth Infestation |
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| Authors: | WALSH P J; DAY K R; LEATHER S R; SMITH A |
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| Institution: | 1Applied Ecology Research Group, Department of Biological & Biomedical Sciences, University of Ulster Coleraine, BT52 ISA, Northern Ireland
2Forestry Commission Northern Research Station Roslin, Midlothian, EH25 9SY, Scotland |
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| Abstract: | The community composition of Carabid beetles, some species ofwhich are known predators of pine beauty moth, was examinedwithin a Scottish plantation forest. Sites differing in soiltype and the species of trees planted were sampled with pitfalltraps in most weeks of a 3—year period. There were faunaldifferences between sites with lodgepole pine on deep peat andother sites in the study (lodgepole pine on iron-pan soil, speciesmixture of lodgepole and Scots pine, and pure stands of Scotspine). In general deep peat sites supported fewer species andindividuals of carabids. Three Carabus species were implicatedas likely predators of Panolis flammea pupae and each was lessabundant on the sites with lodgepole pine. It is suggested thatthe susceptibility to pine beauty moth of lodgepole pine growingon deep peat substrates is at least partly attributable to impoverishedpredator faunas. |
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