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Journal of Paleolimnology
Papers 2146
1 page of 215 pages (2,146 results)
Published on May 29, 2019in Journal of Paleolimnology 2.01
C. L. Clarke (University of Southampton), Darren R. Gröcke34
Estimated H-index: 34
(Durham University)
+ 2 AuthorsM. van Hardenbroek7
Estimated H-index: 7
(Newcastle University)
Oxygen isotope (δ18O) measurements on the exoskeletons of aquatic insects can be used to reconstruct changes in the δ18O of ambient water and, indirectly, to infer the climate and environmental conditions at the time of tissue synthesis. Prior to stable isotope analysis, it is often necessary to chemically pretreat insect remains to remove allochthonous organic and inorganic compounds without altering the δ18O signature. We tested the effectiveness and impact of duration of exposure to a buffere...
Published on Jun 14, 2019in Journal of Paleolimnology 2.01
Christoph Mayr26
Estimated H-index: 26
(LMU: Ludwig Maximilian University of Munich),
Rebecca E. Smith (University of Oxford)+ 7 AuthorsBernd Zolitschka40
Estimated H-index: 40
(University of Bremen)
Lacustrine sediment sequences were obtained from Lagunas Verde and Gemelas Este, two small lakes located east of the southern Patagonian Ice Field and close to the village of El Chalten, in Argentinian Patagonia. Four tephra layers were identified in each of the short sediment sequences and characterised using individual glass-shard tephra chemistry to determine provenance. Bulk sediment geochemistry and diatom assemblages were analysed to understand the impact of the tephra deposits on the lake...
Published on May 24, 2019in Journal of Paleolimnology 2.01
Yanmin Cao8
Estimated H-index: 8
Peter G. Langdon31
Estimated H-index: 31
+ 3 AuthorsZhou Zhang
The composition of Chironomidae communities and the ecological significance of such assemblages in peatlands have received little attention, especially in subtropical alpine regions. We report on the spatial distribution of subfossil chironomids and environmental controls on the insects in three subalpine peatlands from subtropical, central China. We found 44 genera and 62 morphotypes in 41 surficial peat samples. The taxa are different from those found in shallow freshwater lakes in the same re...
Published on May 17, 2019in Journal of Paleolimnology 2.01
Matthew Q. Morison1
Estimated H-index: 1
Olena Volik2
Estimated H-index: 2
+ 3 AuthorsRichard M. Petrone12
Estimated H-index: 12
In permafrost landscapes, ponds and lakes are ubiquitous and important features that support long-term carbon storage and diverse diatom communities. With climate warming, thermokarst lake expansion may modify the ability of these aquatic systems to maintain these functions, as a consequence of changes to nutrient inputs and cycling. A recent (2006–2008) thermokarst shoreline expansion event adjacent to small Frisbee Pond, in the Hudson Bay Lowlands, Canada, presented an opportunity to evaluate ...
Published on Apr 22, 2019in Journal of Paleolimnology 2.01
Javier P. Burillo (UGR: University of Granada), Laura Jiménez4
Estimated H-index: 4
(UGR: University of Granada),
Carmen Pérez-Martínez14
Estimated H-index: 14
(UGR: University of Granada)
Sedimentary postabdominal claws, among other remains, have been used successfully in paleolimnological studies to reconstruct past environmental conditions and the distribution pattern of certain Daphnia species. However, morphological analysis of postabdominal claws has not proven adequate for the clear taxonomic differentiation among species within a complex, such as the Daphnia pulex complex. The presence of the invasive North American (NA) D. pulex lineage was recently detected in an alpine ...
Published on Jun 10, 2019in Journal of Paleolimnology 2.01
Sumin Wang25
Estimated H-index: 25
(CAS: Chinese Academy of Sciences)
Published on May 18, 2019in Journal of Paleolimnology 2.01
Andrey N. Tsyganov9
Estimated H-index: 9
Elena Malysheva4
Estimated H-index: 4
+ 2 AuthorsYuri Mazei10
Estimated H-index: 10
Testate amoebae are important components of benthic communities in freshwater lakes, where they play an essential role in decomposer food webs. They are used widely in paleoecological investigations because of their high taxonomic diversity, well-defined ecological preferences and decay-resistant tests. Studies of testate amoeba assemblages in lake surface sediments are necessary to better understand lake ecosystem function and improve the use of these organisms as bio-indicators in paleoecology...
Published on Jun 3, 2019in Journal of Paleolimnology 2.01
Nadine Dräger5
Estimated H-index: 5
Birgit Plessen24
Estimated H-index: 24
+ 5 AuthorsAchim Brauer40
Estimated H-index: 40
Stable carbon isotopes of sediment organic matter (δ13COM) are widely applied in paleoenvironmental studies. Interpretations of δ13COM, however, remain challenging and factors that influence δ13COM may not apply across all lakes. Common explanations for stratigraphic shifts in δ13COM include changes in lake productivity or changes in inputs of allochthonous OM. We investigated the influence of different oxygen conditions (oxic versus anoxic) on the δ13COM values in the sediments of Lake Tiefer S...
Published on Jun 21, 2019in Journal of Paleolimnology 2.01
Christian Crouzet14
Estimated H-index: 14
(CNRS: Centre national de la recherche scientifique),
Bruno Wilhelm13
Estimated H-index: 13
(CNRS: Centre national de la recherche scientifique)
+ 9 AuthorsManon Bajard5
Estimated H-index: 5
(CNRS: Centre national de la recherche scientifique)
Chronologies of lake-sediment records covering the last centuries to millennia are usually based on both short-lived radionuclides and radiocarbon dating. However, beyond the range of short-lived radionuclides, age model accuracy often suffers from large radiocarbon uncertainties. For high-altitude records, this issue is even more prominent as terrestrial plant fragments for radiocarbon dating are often lacking due to the sparse vegetation in such environments. In this study, we evaluate the pot...
Published on Jun 1, 2019in Journal of Paleolimnology 2.01
Svante Björck52
Estimated H-index: 52
(Lund University)