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dc.contributor.authorFisher, P.en
dc.contributor.authorSpurr, E.en
dc.contributor.authorOgilvie, S.en
dc.contributor.authorEason, Charlesen
dc.date.accessioned2012-11-05T21:10:43Z
dc.date.issued2007en
dc.identifier.citationFisher, P., Spurr, E. B., Ogilvie, S. C., & Eason, C. T. (2007). Bait consumption and residual concentrations of diphacinone in the Wellington tree weta (Hemideina crassidens) (Orthoptera : Anostostomatidae). New Zealand Journal of Ecology, 31(1), 104-110.en
dc.identifier.issn0110-6465en
dc.identifier.urihttps://hdl.handle.net/10182/5014
dc.description.abstractTo investigate the potential for mortality or sublethal effects in the tree weta (Hemideina crassidens) as the result of exposure to baits used for rodent control, and the potential secondary hazard to non-target species, captive weta were offered Ditrac® wax block bait containing the anticoagulant diphacinone. Bait consumption was recorded daily for the first week and then weekly. Weta were sampled in groups of four following 1, 4, 8, 16, 31, and 64 days of exposure to bait and analysed to determine the concentration of diphacinone residues in their bodies. Any changes in feeding behaviour, survival, and bodyweight were recorded. Weta found Ditrac wax block baits palatable even in the presence of natural plant food, showing steady consumption of bait over time. No mortality or weight loss was attributable to the intake of Ditrac bait. All weta that ate bait had detectable diphacinone in their bodies, but did not accumulate diphacinone, i.e. whole-body concentrations did not increase with the amount of diphacinone bait eaten over time. Field use of diphacinone bait is likely to present a low risk of mortality to weta, but the risk posed by secondary diphacinone exposure to non-target species that eat weta requires further investigation.en
dc.description.sponsorshipFoundation for Science, Research and Technology (Contract C09X0209).en
dc.format.extent104-110en
dc.language.isoenen
dc.publisherNew Zealand Ecological Societyen
dc.relationThe original publication is available from - New Zealand Ecological Society - http://hdl.handle.net/10182/5014en
dc.rightsCopyright © New Zealand Ecological Societyen
dc.subjectpoisonen
dc.subjectnon-target speciesen
dc.subjectsecondary exposureen
dc.subjectvertebrate pest controlen
dc.subjectpoisonsen
dc.subjectEcologyen
dc.titleBait consumption and residual concentrations of diphacinone in the Wellington tree weta (Hemideina crassidens) (Orthoptera: Anostostomatidae)en
dc.typeJournal Article
lu.contributor.unitLincoln Universityen
lu.contributor.unitFaculty of Agriculture and Life Sciencesen
lu.contributor.unitPest-Management and Conservationen
lu.contributor.unitResearch Management Officeen
lu.contributor.unit/LU/Research Management Office/2018 PBRF Staff groupen
dc.subject.anzsrc0602 Ecologyen
dc.relation.isPartOfNew Zealand Journal of Ecologyen
pubs.issue1en
pubs.organisational-group/LU
pubs.organisational-group/LU/Agriculture and Life Sciences
pubs.organisational-group/LU/Agriculture and Life Sciences/ECOL
pubs.organisational-group/LU/Research Management Office
pubs.organisational-group/LU/Research Management Office/2018 PBRF Staff group
pubs.publication-statusPublisheden
pubs.publisher-urlhttp://hdl.handle.net/10182/5014en
pubs.volume31en


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