Intraguild predation among the aphidophagous ladybird beetles Harmonia axyridis PALLAS and Coccinella undecimpunctata L. (Coleoptera: Coccinelidae) : characterization of the direction and symmetry

Félix, Sandra; Soares, António O.

http://hdl.handle.net/10400.3/822

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Intraguild predation among the aphidophagous ladybird beetles Harmonia axyridis PALLAS and Coccinella undecimpunctata L. (Coleoptera Coccinelidae) Characterization of the direction.pdf		299.57 KB	Adobe PDF	Download

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Authors

Félix, Sandra

Soares, António O.

Abstract(s)

Direction and symmetry of intraguild predation (IGP) between all developmental stages of the aphidophagous Harmonia axyridis Pallas and Coccinella undecimpunctata L. were characterized. Our results revealed that H. axyridis predation level was significantly higher than C. undecimpunctata and eggs were the more vulnerable developmental stage. Significantly asymmetric IGP on eggs occurred after the second and fourth larval stages of H. axyridis and C.undecimpunctata, respectively. Asymmetric IGP on pupas exclusively occurred in the presence of the fourth larval stage of H. axyridis.

Description

Proceedings of the 8th International Symposium on Ecology of Aphidophaga: Biology, Ecology and Behaviour of Aphidophagous Insects.

Keywords

Aphidophagous ladybird beetles Coccinella undecimpunctata L. Direction and Symmetry Intraguild Predation Harmonia axyridis PALLAS

URI

http://hdl.handle.net/10400.3/822

Citation

FÉLIX, S. & A. O. SOARES, (2003). Intraguild predation among the aphidophagous ladybird beetles Harmonia axyridis Pallas and Coccinella undecimpunctata L. (Coleoptera: Coccinellidae): characterization of the direction and symmetry. “Arquipélago. Life and Marine Sciences”, Supl. 5: 103-106.