Presentation Title

Dermestid Beetles

Faculty Mentor

Dr. Cord Brundage

Start Date

18-11-2017 12:30 PM

End Date

18-11-2017 1:30 PM

Location

BSC-Ursa Minor 84

Session

Poster 2

Type of Presentation

Poster

Subject Area

biological_agricultural_sciences

Abstract

Dermestid beetles (Dermestes spp.) are necrophages, with larval and adult life stages dependent on animal substrates for food. These beetles are often employed by anatomists, museum curators and forensic scientists to remove tissues from skeletal remains. The rate of tissue removal is based on the number of beetles from each life stage, the surface are of the tissue and the tissue’s water percentage. Increasing tissue hydration is commonly used to increase the rate of consumption. In this study we tested the effect of increased waster tonicity on the rate of tissue consumption using two solute types (20% sugar and 20% salt solutions). Beef round steaks of controlled surface area (weight, diameter and thickness) were placed in one of three set locations within an aquarium containing a mixed population of dermestid beetles. Each steak was then sprayed with one of three blinded solutions containing either water, dilute salt or sugar. The steaks were weighed each day and rated on the degree of consumption until fully consumed. After weighing, each steak was replaced and then resprayed with the same solution. This study was conducted three times with the solution choice being switched to a different steak position each time. Preliminary results suggest that steak location had no effect on consumption rate. The remaining results will be discussed when presented.

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Nov 18th, 12:30 PM Nov 18th, 1:30 PM

Dermestid Beetles

BSC-Ursa Minor 84

Dermestid beetles (Dermestes spp.) are necrophages, with larval and adult life stages dependent on animal substrates for food. These beetles are often employed by anatomists, museum curators and forensic scientists to remove tissues from skeletal remains. The rate of tissue removal is based on the number of beetles from each life stage, the surface are of the tissue and the tissue’s water percentage. Increasing tissue hydration is commonly used to increase the rate of consumption. In this study we tested the effect of increased waster tonicity on the rate of tissue consumption using two solute types (20% sugar and 20% salt solutions). Beef round steaks of controlled surface area (weight, diameter and thickness) were placed in one of three set locations within an aquarium containing a mixed population of dermestid beetles. Each steak was then sprayed with one of three blinded solutions containing either water, dilute salt or sugar. The steaks were weighed each day and rated on the degree of consumption until fully consumed. After weighing, each steak was replaced and then resprayed with the same solution. This study was conducted three times with the solution choice being switched to a different steak position each time. Preliminary results suggest that steak location had no effect on consumption rate. The remaining results will be discussed when presented.