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Featured researches published by Dominique Haubert.


Ecology | 2005

APPLICATION OF LIPID ANALYSIS TO UNDERSTAND TROPHIC INTERACTIONS IN SOIL

Liliane Ruess; Kirsten Schütz; Dominique Haubert; Max M. Häggblom; Ellen Kandeler; Stefan Scheu

Trophic interactions in cryptic belowground systems are difficult to assess, either experimentally or by direct observation. We used lipid analysis to determine feeding strategies in Collembola raised on various bacterial, fungal, plant, or nematode diets. Dietary fatty acids (FAs) were conserved and transferred through the trophic cascade into the neutral lipids of consumers. The presence of vaccenic type FAs (v7 family) was indicative of a bacterial diet in general. More specifically, methyl-branched (iso, anteiso) and cyclic forms of FAs were markers for consumption of gram-positive and gram-negative bacteria, re- spectively. Fungal-feeding Collembola comprised a higher proportion of linoleic acid, whereas the profile of plant feeders showed an increased amount of oleic acid. The FA 20:1 v9 was only present in Collembola with nematodes as prey. Based on the assigned marker FAs, field populations of Collembola in three deciduous forest stands were ascribed to feeding guilds (i.e., fungivores, bacterivores, herbivores, predators). In conclusion, FA biomarkers provide a high-resolution method to define feeding strategies of decomposer invertebrates and to determine their diets in situ. Lipid analysis has considerable potential as a new tool in soil food web studies.


Soil Biology & Biochemistry | 2005

Carbon stable isotope fractionation and trophic transfer of fatty acids in fungal based soil food chains

Liliane Ruess; Alexei V. Tiunov; Dominique Haubert; Hans H. Richnow; Max M. Häggblom; Stefan Scheu


Pedobiologia | 2005

Effects of food quality, starvation and life stage on stable isotope fractionation in Collembola

Dominique Haubert; Reinhard Langel; Stefan Scheu; Liliane Ruess


Functional Ecology | 2012

Carbon flux through fungi and bacteria into the forest soil animal food web as indicated by compound‐specific 13C fatty acid analysis

Melanie M. Pollierer; Jens Dyckmans; Stefan Scheu; Dominique Haubert


Comparative Biochemistry and Physiology B | 2004

Effects of fungal food quality and starvation on the fatty acid composition of Protaphorura fimata (Collembola)

Dominique Haubert; Max M. Häggblom; Stefan Scheu; Liliane Ruess


Soil Biology & Biochemistry | 2006

Trophic shift of stable isotopes and fatty acids in Collembola on bacterial diets

Dominique Haubert; Max M. Häggblom; Reinhard Langel; Stefan Scheu; Liliane Ruess


Oikos | 2009

Trophic structure and major trophic links in conventional versus organic farming systems as indicated by carbon stable isotope ratios of fatty acids

Dominique Haubert; Klaus Birkhofer; Andreas Fließbach; Matthias Gehre; Stefan Scheu; Liliane Ruess


Soil Biology & Biochemistry | 2010

Taking it to the next level: Trophic transfer of marker fatty acids from basal resource to predators

Melanie M. Pollierer; Stefan Scheu; Dominique Haubert


European Journal of Soil Biology | 2008

Effects of temperature and life stage on the fatty acid composition of Collembola

Dominique Haubert; Max M. Häggblom; Stefan Scheu; Liliane Ruess


Archive | 2004

Effects of fungal food quality and starvation on the fatty acid composition of Protaphorura fimata

Dominique Haubert; Stefanie Scheu; Liliane Ruess

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Stefan Scheu

University of Göttingen

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Liliane Ruess

Humboldt University of Berlin

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Hans H. Richnow

Helmholtz Centre for Environmental Research - UFZ

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Jens Dyckmans

University of Göttingen

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Klaus Birkhofer

Brandenburg University of Technology

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Matthias Gehre

Helmholtz Centre for Environmental Research - UFZ

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