Intraguild predation between the invasive ladybird Harmonia axyridis and non-target European coccinellid species

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Serval ID
serval:BIB_8880C818A1B4
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Intraguild predation between the invasive ladybird Harmonia axyridis and non-target European coccinellid species
Journal
Biocontrol
Author(s)
Katsanis A., Babendreier D., Nentwig W., Kenis M.
ISSN
386-6141
Publication state
Published
Issued date
2013
Volume
38
Number
1
Pages
73-83
Language
english
Abstract
The coccinellid Harmonia axyridis (Pallas) has been used for augmentative and classical biological control in many environments. More recently it has invaded large parts of Europe and negative effects for native populations of aphidophagous coccinellids are beginning to emerge. Here we investigate intraguild predation (IGP) between H. axyridis and eleven native non-target European coccinellids, including less common species which have not been studied so far within this context of non-target effects. When first-instars of H. axyridis were paired with the native species, only Anatis ocellata (Linnaeus) and Calvia quatuordecimguttata (L.) were significantly superior to the former whereas H. axyridis was superior in three cases, i.e. against Aphidecta obliterata (L.), Coccinella septempunctata L. and Hippodamia variegata (Goeze). Non-significant results were obtained for all other pairings. Similar tests with the fourth larval instar revealed stronger IGP rates and H. axyridis was found to be superior in the interactions with Adalia bipunctata (L.), Adalia decempunctata (L.), A. obliterata, Calvia decemguttata (L.), C. quatuordecimguttata, C. septempunctata, H. variegata, Oenopia conglobata (L.) and Propylea quatuordecimpunctata (L.) whereas non-significant results were obtained for interactions with two other native species. Another experiment revealed that H. axyridis was able to prey more successfully upon egg of most native coccinellid species than vice versa. However, C. quatuordecimguttata eggs seem to be more protected against predation than those of the other species. Survival of first-instar H. axyridis was higher on conspecific eggs compared to eggs of any other species tested. Our results suggest that H. axyridis may become a threat to a wide range of native aphidophagous coccinellids sharing similar ecological niches except species showing high potential for chemical or physical protection.
Keywords
Invasive species, Harmonia axyridis, Intraguild predation, Coccinellidae, Impact on biodiversity
Web of science
Open Access
Yes
Create date
28/02/2013 11:15
Last modification date
01/10/2019 7:18
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