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Selective foraging of fungi by collembolans in soil

Author:
  • Helene Bracht Jörgensen
  • Tomas Johansson
  • Björn Canbäck
  • Katarina Hedlund
  • Anders Tunlid
Publishing year: 2005
Language: English
Pages: 243-246
Publication/Series: Biology Letters
Volume: 1
Issue: 2
Document type: Journal article
Publisher: Royal Society

Abstract english

Soils contain highly diverse communities of microorganisms and invertebrates. The trophic interactions between these species are largely unknown. Collembolans form an abundant part of the invertebrate community in soils. A prevailing view is that soil collembolans are generalist feeders on fungi, lichens, fragmented litter and bacteria. However, in laboratory food choice experiments, it has been shown that collembolans preferentially select certain taxa of fungi. To examine this apparent contradiction, we developed a molecular technique based on the analysis of 18S ribosomal DNA (rDNA) sequences to explore the diversity of fungi in soils and in the guts of collembolans. We report that the diversity of fungi found in the natural soil was 33 times higher than that in the guts of the collembolan Protaphorura armata. The data support the view that collembolan species can be highly selective when foraging on fungi in soils.

Keywords

  • Biological Sciences
  • Ecology
  • collembolan food selection soil food web ribosomal DNA fungi

Other

Published
  • Soil Ecology
  • Microbial Ecology
  • ISSN: 1744-9561
Katarina Hedlund
E-mail: katarina [dot] hedlund [at] biol [dot] lu [dot] se

Professor

Biodiversity

+46 46 222 37 98

+46 72 562 10 04

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Researcher

Centre for Environmental and Climate Research (CEC)

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Centre for Animal Movement Research
Evolutionary Ecology, Department of Biology
Ecology building S-223 62 Lund Sweden