Applying Biogeochemistry to Identify the Geographic Origins of Insects-A Model Using Prostephanus truncatus
Journal Title: Journal of Environmental Studies - Year 2016, Vol 2, Issue 1
Abstract
The application of geochemical screening for tracking insects and other organisms is poorly understood. We explored multi-elemental profiles of an insect pest and its food from different locations in order to identify intrinsic markers of geographic origin. ICP-AES screening was completed for soil, maize grains and Prostephanus truncatus of different geographic origin, with insects collected in the field or reared on maize under controlled conditions. Background level geochemical data are presented with concentrations of Cu, S and Sr in maize, and Al, Ba, Ca, Fe, S, Si, Sr, Ti and Zn in insects differing according to their origin, or that of their food. Cu, Fe and Zn determinations of insects were 20, 6.5 and 11.5 times the concentrations of the maize they were reared on.
Authors and Affiliations
Tigar BJ
Keywords
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- EP ID EP208570
- DOI 10.13188/2471-4879.1000004
- Views 121
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