Diversity of cereal aphid parasitoids in simple and complex landscapes

I.M.G. Vollhardt, T. Tscharntke, F.L. Wackers, F.J.J.A. Bianchi, C. Thies

Research output: Contribution to journalArticleAcademicpeer-review

56 Citations (Scopus)

Abstract

Structurally complex landscapes may enhance local species richness and interactions, which is possibly due to a higher species pool in complex landscapes. This hypothesis was tested using cereal aphid parasitoids (Hymenoptera, Aphidiidae) by comparing 12 winter wheat fields in structurally complex landscapes (>50% semi-natural habitats; n = 6) and structurally simple landscapes dominated by agricultural lands (>80% arable land; n = 6). Surprisingly, landscape structural complexity had no effect on aphid parasitoid species diversity. In complex landscapes 12 and in simple landscapes 11 species were found; 9 species occurred in both landscape types. Hence, arable fields in high-intensity agricultural landscapes with little non-crop area can support a similar diversity of cereal aphid parasitoids as structurally complex landscapes. This finding suggests that cereal aphid parasitoids may find necessary resources even in simple landscapes, making generalisations concerning the relationship between landscape composition and biodiversity in arable fields difficult.
LanguageEnglish
Pages289-292
JournalAgriculture, Ecosystems and Environment
Volume126
Issue number3-apr
DOIs
Publication statusPublished - 2008

Fingerprint

aphid
cereal
parasitoids
Aphidoidea
agricultural land
Aphidiidae
species pool
species diversity
arable land
parasitoid
arable soils
winter wheat
wheat
species richness
biodiversity
Hymenoptera
winter

Keywords

  • biodiversity
  • management
  • context
  • density

Cite this

Vollhardt, I.M.G. ; Tscharntke, T. ; Wackers, F.L. ; Bianchi, F.J.J.A. ; Thies, C. / Diversity of cereal aphid parasitoids in simple and complex landscapes. In: Agriculture, Ecosystems and Environment. 2008 ; Vol. 126, No. 3-apr. pp. 289-292.
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Diversity of cereal aphid parasitoids in simple and complex landscapes. / Vollhardt, I.M.G.; Tscharntke, T.; Wackers, F.L.; Bianchi, F.J.J.A.; Thies, C.

In: Agriculture, Ecosystems and Environment, Vol. 126, No. 3-apr, 2008, p. 289-292.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Diversity of cereal aphid parasitoids in simple and complex landscapes

AU - Vollhardt, I.M.G.

AU - Tscharntke, T.

AU - Wackers, F.L.

AU - Bianchi, F.J.J.A.

AU - Thies, C.

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