Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 409955
Title Trait-mediated diversification in nematode predator–prey systems
Author(s) Mulder, C.; Helder, J.; Vervoort, M.T.W.; Vonk, J.A.
Source Ecology and Evolution 1 (2011)3. - ISSN 2045-7758 - p. 386 - 391.
Department(s) Laboratory of Nematology
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) mononchus-aquaticus - feeding-habits - community - agroecosystems - ecologists
Abstract Nematodes are presumably the most numerous Metazoans in terrestrial habitats. They are represented at all trophic levels and are known to respond to nutrient limitation, prey availability, and microbial resources. Predatory nematodes reside at the highest trophic level, and as such their feeding habits could have a major impact on soil food web functioning. Here, we investigate the effects of gender and developmental stage on the nematode body sizes in coarse and loamy soils. Besides Neodiplogasteridae, our predators are much larger than other soil-dwelling nematodes from their early developmental stage onwards. From juvenile to adult, the predatory Aporcelaimellus (Kruskal–Wallis P <0.001), Dorylaimoides, and Tripyla (both P <0.01) show great length increases during their developmental growth, in contrast to their possible prey (almost all P <0.001). Less than 4% of the prey exceeds the length of the predatory adults, but more than 30% of the prey exceeds the length of the predatory juveniles. Potential body size ratios and some physical problems experienced by small fluid feeders attacking large prey are discussed in an attempt to summarize different prey-searching mechanisms and aggregative predatory responses in the soil system
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