Spatial distribution and sequential sampling of adults ofGonocephalum macleayi andPterohelaeus darlingensis in different cropping regimes |
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| Authors: | P. G. Allsopp and N. W. Forrester |
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| Affiliation: | (1) Bureau of Sugar Experiment Stations, P.O. Box 651, 4670 Bundaberg, Queensland, Australia;(2) Research Station, NSW Agriculture, 2390 Narrabri, New South Wales, Australia |
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| Abstract: | Counts of adults of the false wirewormsGonocephalum macleayi (Blackburn) andPterohelaeus darlingensis Carter in pitfall traps in burnt, mulched and sorghum treatments conformed to Taylor's power law. Within a species there were no significant differences in distributions of counts of either sex in any habitat butG. macleayi were more aggregated thanP. darlingensis (Taylor'sb 1.35 and 1.26, respectively). Relationships to determine sample sizes for fixed levels of precision and fixed-precision-level stop lines for sequential sampling are developed for each species using Taylor's parameters for combined data over all habitats. |
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| Keywords: | Coleoptera Tenebrionidae Pterohelaeus darlingensis Gonocephalum macleayi false wireworms sampling |
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