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Body size and the temporal sequence in the reproductive activity of two species of aphidophagous coccinellids exploiting the same resource
- Article from:
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European Journal of Entomology
- Article date:
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July 1, 2008
- Author:
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Copyright informationCopyright Institute of Entomology 2008. Provided by ProQuest LLC. (Hide copyright information)
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Key words. Coccinella septempunctata, Propylea quatuordecimpunctata, Coccinellidae, Coleoptera, Dinocampus coccinellae, Braconidae, Hymenoptera, body size, reproduction, oviposition, prey abundance
Abstract. The hypothesis that small species of aphidophagous coccinellids need lower aphid population densities for reproduction than large species (Dixon, 2007) was tested in the field. In 2006 we compared seasonal changes in the oviposition behaviour of two coccinellid species regularly found in cereal stands in central Europe, the large Coccinella septempunctata L. and the small Propylea quatuordecimpunctata (L.). Adults of both species were collected at 2-3 day intervals from stands of winter ...
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