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@ARTICLE{Mayr:256544,
      author       = {Mayr, C. and Laprida, C. and Lücke, Andreas and Martin, R.
                      S. and Massaferro, J. and Ramon-Mercau, J. and Wissel,
                      Holger},
      title        = {{O}xygen isotope ratios of chironomids, aquatic macrophytes
                      and ostracods for lake-water isotope reconstructions -
                      results of a calibration study in {P}atagonia},
      journal      = {Journal of hydrology},
      volume       = {529},
      number       = {Part 2},
      issn         = {0022-1694},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2015-06428},
      pages        = {600-607},
      year         = {2015},
      abstract     = {Oxygen stable isotopes (δ18O) of biogenic sedimentary
                      components from lake sediment archives, such as ostracod
                      valves, are frequently used for palaeoclimatic
                      reconstructions. However, the effects of host water isotope
                      changes, temperature-dependent fractionations, and vital
                      effects on the isotopic ratios of such biogenic proxies
                      often cannot be disentangled. Here, δ18O values of ostracod
                      valves, head capsules of chironomid larvae and aquatic
                      macrophyte cellulose from various lake and stream sites in
                      southern Patagonia (41–52°S) are compared with δ18O
                      values of their host waters. The best correlation between
                      δ18O values of bioproxy and host water was obtained for
                      aquatic cellulose exhibiting a slope of the regression of
                      almost unity. Chironomid head capsules showed a strong
                      correlation, but the data set was rather small (seven
                      sites). The δ18O values of ostracod valves showed strong
                      inter-specific vital effects. Strong offsets of ostracod
                      values from isotopic equilibrium are possibly explained by
                      re-working of subfossil valves, seasonality effects or
                      different chemical composition of host waters. A weak, but
                      significant temperature dependency of oxygen isotope
                      fractionation was observed for cellulose of one aquatic
                      taxon (Myriophyllum) and for ostracod calcite, but not for
                      chironomids and aquatic moss cellulose. The present dataset
                      suggests that δ18O values of aquatic cellulose are the most
                      reliable proxy for host water isotope reconstructions, but
                      clearly more investigations are needed to substantiate this
                      finding.},
      cin          = {IBG-3},
      ddc          = {690},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {255 - Terrestrial Systems: From Observation to Prediction
                      (POF3-255)},
      pid          = {G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000364249000016},
      doi          = {10.1016/j.jhydrol.2014.11.001},
      url          = {https://juser.fz-juelich.de/record/256544},
}