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Variability of higher trophic level stable isotope data in space and time - a case study in a marine ecosystem

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2015

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Ekschmitt, Klemens
Brickle, Paul
McGill, Rona A. R.
Wolters, Volkmar
Dehnhard, Nina
Masello, Juan F.

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https://doi.org/10.1002/rcm.7145
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Biologie: Publikationen
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Rapid Communications in Mass Spectrometry. 2015, 29(7), pp. 667-674. ISSN 0951-4198. eISSN 1097-0231. Available under: doi: 10.1002/rcm.7145

Zusammenfassung

1In shelf and coastal ecosystems, planktonic and benthic trophic pathways differ in their carbon stable isotope ratios (δ13C values) and nitrogen stable isotope ratios (δ15N values) and they increase predictably with trophic level. Stable isotope data are therefore used as a tool to study food webs in shelf and coastal ecosystems, and to assess the diets and foraging behaviour of predators. However, spatial differences and temporal changes in prevailing environmental conditions and prey abundance may lead to considerable heterogeneity in stable isotope values measured in focal animal species.

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570 Biowissenschaften, Biologie

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ISO 690QUILLFELDT, Petra, Klemens EKSCHMITT, Paul BRICKLE, Rona A. R. MCGILL, Volkmar WOLTERS, Nina DEHNHARD, Juan F. MASELLO, 2015. Variability of higher trophic level stable isotope data in space and time - a case study in a marine ecosystem. In: Rapid Communications in Mass Spectrometry. 2015, 29(7), pp. 667-674. ISSN 0951-4198. eISSN 1097-0231. Available under: doi: 10.1002/rcm.7145
BibTex
@article{Quillfeldt2015-07-26Varia-39914,
  year={2015},
  doi={10.1002/rcm.7145},
  title={Variability of higher trophic level stable isotope data in space and time - a case study in a marine ecosystem},
  number={7},
  volume={29},
  issn={0951-4198},
  journal={Rapid Communications in Mass Spectrometry},
  pages={667--674},
  author={Quillfeldt, Petra and Ekschmitt, Klemens and Brickle, Paul and McGill, Rona A. R. and Wolters, Volkmar and Dehnhard, Nina and Masello, Juan F.}
}
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    <dcterms:abstract xml:lang="eng">1In shelf and coastal ecosystems, planktonic and benthic trophic pathways differ in their carbon stable isotope ratios (δ&lt;sup&gt;13&lt;/sup&gt;C values) and nitrogen stable isotope ratios (δ&lt;sup&gt;15&lt;/sup&gt;N values) and they increase predictably with trophic level. Stable isotope data are therefore used as a tool to study food webs in shelf and coastal ecosystems, and to assess the diets and foraging behaviour of predators. However, spatial differences and temporal changes in prevailing environmental conditions and prey abundance may lead to considerable heterogeneity in stable isotope values measured in focal animal species.</dcterms:abstract>
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