Quantifying aphid predation rates of generalist predators in the field. A review
Harwood, J.D.(University of Kentucky, Lexington (USA). Dept. of Entomology)E-mail:[email protected] | Obrycki, J.J.
Over 100 investigations have utilized gut-content analysis to estimate aphid predation rates by predators. Throughout the last century, gut dissection, which enables the visual identification of aphid body parts, has been used in over 50% of studies. Other techniques have included radio-labelling of prey, dissection of faecal samples, electrophoresis, stable isotope analysis and use of polyclonal antisera. In recent studies of invertebrate predation, monoclonal antibodies have been the most frequently applied technique. Advances in molecular biology have enabled the detection of species-specific DNA sequences. The use of these applications is reviewed.
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