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Estimating the Preappearance Interval from Temperature in Creophilus maxillosus L. (Coleoptera: Staphylinidae)*

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Abstract:  Some carrion insects appear on carcasses late in decomposition. While using these late‐arriving taxa to estimate postmortem interval, it is vital to accurately estimate an interval preceding their appearance on a cadaver called the preappearance interval (PAI). This paper tests the possibilities of a PAI estimation from temperature in case of late‐arriving, predatory carrion beetle Creophilus maxillosus. The relationship between temperature and PAI of adult and larval C.┬ámaxillosus was modeled using the results of a large‐scale experiment on succession in forests of Central Europe. In both stages, PAI was found to be strongly, inversely related to temperature averaged for the duration of PAI. The PAI estimation from mean degree‐day accumulations (mDDA), estimated DDA, and “PAI*T” functions were tested using external successional data. The greatest accuracy of PAI estimates was achieved using an exponential “PAI*T” function.
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Document Type: Research Article

Affiliations: Department of Criminalistics, Adam Mickiewicz University, Św. Marcin 90, 61-809 Poznań, Poland.

Publication date: January 1, 2012

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