Using stable isotopes to differentiate trophic feeding channels within soil food webs

A - Papers appearing in refereed journals

Crotty, F. V., Adl, S. M., Blackshaw, R. P. and Murray, P. J. 2012. Using stable isotopes to differentiate trophic feeding channels within soil food webs. Journal Of Eukaryotic Microbiology. 59 (6), pp. 520-526.

AuthorsCrotty, F. V., Adl, S. M., Blackshaw, R. P. and Murray, P. J.
Abstract

The soil is probably the most diverse habitat there is, with organisms ranging in sizes from less than 1 mu m to several metres in length. However, it is increasingly evident that we know little about the interactions occurring between these organisms, the functions that they perform as individual species, or together within their different feeding guilds. These interactions between groups of organisms and physical and chemical processes shape the soil as a habitat and influence the nature of the soil food web with consequences for the above-ground vegetation and food web. Protists are known as one of the most abundant groups of bacterivores within the soil; however, they are also consumers of a number of other food sources. Even though they are responsible for a large proportion of the mineralisation of bacterial biomass and have a large impact on the C and N cycles within the soil they are regularly overlooked when investigating the complete soil food web. Recently, stable isotopes have been used to determine trophic interactions and here we describe how this technique has been used to highlight linkages between protists and the soil food web.

KeywordsMicrobiology
Year of Publication2012
JournalJournal Of Eukaryotic Microbiology
Journal citation59 (6), pp. 520-526
Digital Object Identifier (DOI)doi:10.1111/j.1550-7408.2011.00608.x
PubMed ID22299758
Open accessPublished as non-open access
FunderBiotechnology and Biological Sciences Research Council
Dalhousie University, Canada
Funder project or codeNorth Wyke Research (NWR)
SEF
Project: 5741
ISSN10665234
1066-5234
PublisherWiley

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