Title: Intraguild predation by <i><scp>H</scp>armonia axyridis</i> (<scp>C</scp>oleoptera: <scp>C</scp>occinellidae) on native insects in <scp>E</scp>urope: molecular detection from field samples
Abstract:Abstract Intraguild predation ( IGP ) is a potential mechanism of negative effects on native species populations by invasive non‐native species such as H armonia axyridis . Molecular techniques (polym...Abstract Intraguild predation ( IGP ) is a potential mechanism of negative effects on native species populations by invasive non‐native species such as H armonia axyridis . Molecular techniques (polymerase chain reaction) were used to probe for the presence of various insect (coccinellid, syrphid and chrysopid) prey DNA in the guts of 177 H . axyridis larvae field‐collected in E ngland, F rance, G ermany, S lovakia and the C zech R epublic in 2010. Three of the four target prey species were detected in the guts of H . axyridis at the following rates: A dalia decempunctata 9.6%, A dalia bipunctata 2.8% and E pisyrphus balteatus 2.8%. IGP on C hrysoperla carnea was not detected. IGP detection of at least one target species was made in E ngland, F rance, S lovakia and the C zech R epublic, but not in G ermany. These results strengthen the evidence that H . axyridis is a very generalist predator. Results are discussed in the context of their ecological significance.Read More
Publication Year: 2014
Publication Date: 2014-06-09
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 43
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