Document Detail


Influence of substrate tissue type on larval growth in Calliphora augur and Lucilia cuprina (Diptera: Calliphoridae).
MedLine Citation:
PMID:  16696716     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The size of fly larvae is an important variable in the use of these insects to estimate postmortem interval. Furthermore, the nutritional intake of larvae is likely to vary subject to the part of a corpse on which they are feeding. A study was therefore conducted to investigate the effect of type of food substrate on larval growth in two species of forensically important Australian blowflies. After collection on sheep's liver in the laboratory, different groups of larvae of Lucilia cuprina (Wiedemann) and Calliphora augur (Fabricius) were grown on sheep's liver, meat, and brains, and their body lengths compared. Results indicated that the development of larvae fed sheep's liver was adversely affected compared with larvae fed meat and brain; they moulted later, reached maximum length more slowly and sometimes produced significantly smaller pupae. These findings, similar to those of another recent study, have obvious implications for postmortem interval determinations. Estimates may be considerably skewed if the site of collection of larvae at a death scene contains tissue types different to those used in reference experiments. We therefore recommend caution in forensic analyses that interpret crime scene data using developmental studies performed with a single type of larval food substrate.
Authors:
Donnah M Day; James F Wallman
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of forensic sciences     Volume:  51     ISSN:  0022-1198     ISO Abbreviation:  J. Forensic Sci.     Publication Date:  2006 May 
Date Detail:
Created Date:  2006-05-15     Completed Date:  2006-07-20     Revised Date:  2006-10-25    
Medline Journal Info:
Nlm Unique ID:  0375370     Medline TA:  J Forensic Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  657-63     Citation Subset:  IM    
Affiliation:
Institute for Conservation Biology, School of Biological Sciences, University of Wollongong, New South Wales 2522, Australia. day1don@police.nsw.gov.au
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MeSH Terms
Descriptor/Qualifier:
Adipose Tissue / pathology
Animals
Brain / pathology
Diptera / growth & development*
Entomology
Epithelium / pathology
Feeding Behavior*
Female
Forensic Anthropology / methods
Larva / growth & development*
Liver / pathology
Male
Sheep
Comments/Corrections
Erratum In:
J Forensic Sci. 2006 Sep;51(5):1221

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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