Gail S. Anderson

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Blow fly development rates are frequently used to estimate elapsed time since death in homicide investigations in the first few weeks after death. However, in order to make more precise estimates of time since death, accurate developmental data must be generated for all carrion species, and at temperatures that are comparable with those found at crime(More)
Insect larvae found on a corpse can be used for estimating postmortem intervals. Here, we describe a molecular method for rapid identification of these insects. Specific insect DNA fragments were amplified using the polymerase chain reaction (PCR), followed by direct DNA sequencing of the amplification products. We sequenced 2300 base pairs of mitochondrial(More)
Decomposition of carrion in the marine environment is not well understood. This research involved the decomposition of pig carcasses in Howe Sound in British Columbia. Freshly killed pigs were submerged at two depths, 7.6 m and 15.2 m. The carcasses were tethered so that they could float or sink, but not drift away. Observations were made from May until(More)
Decomposition and insect colonization of pig (Sus scrofa L.) carcasses were observed over a 42-day period inside and outside a house in a suburban region of Edmonton, Alberta. Three freshly killed pig carcasses were placed outdoors on grass and three carcasses were placed in separate rooms inside a house in a suburban residential area. The carcasses were(More)
Culicoides hypersensitivity is a chronic, recurrent, seasonal dermatitis of horses that has a worldwide distribution, but has only recently been reported in Canada. It is characterized by intense pruritus resulting in lesions associated with self-induced trauma.A survey of veterinarians and horse-owners in British Columbia showed no differences in(More)
Six horses from British Columbia severely affected by Culicoides hypersensitivity, a seasonal dermatitis caused by the bites of Culicoides spp., were inoculated intradermally with extracts of six species or forms of Culicoides from British Columbia, United States, and Israel. Two native and four exotic species were thought to cause the disease in their own(More)
We established a database of insect succession on buried carrion in two biogeoclimatic zones of British Columbia over a 16-month period beginning June 1995. Pig (Sus scrofa L.) carcasses were buried shortly after death in the Coastal Western Hemlock and Sub-boreal Spruce biogeoclimatic zones of British Columbia. Buried pigs exhibited a distinct pattern of(More)
A study was conducted on decomposition and insect succession in the Prairie Ecozone of Saskatchewan in the year 2000. Eighteen domestic pig carcasses (42-79 kg) were employed as human models for applications to future homicide investigations in this region. Two major variables were considered including the effect of season and habitat (sun versus shade).(More)
Pig carcasses were placed in pond and stream habitats in the Malcolm Knapp Research Forest in Maple Ridge, B.C. for approximately one year, to examine the development, species, and sequence of invertebrates associated with the carrion. An invertebrate successional database was created for pond and stream habitats for potential use in estimating time of(More)
Three enteric-type neoplasms of the lower female genital tract are described; an enteric adenocarcinoma of the cervix, an enteric adenocarcinoma of the vagina and a tubulo-villous adenoma of the vagina. The two adenocarcinomas were characterized by the presence of columnar cells with a prominent brush border and an abundance of goblet cells. The(More)