Comparing and improving methods for reconstructing peatland water-table depth from testate amoebae
نویسندگان
چکیده
منابع مشابه
Testate amoebae as proxies for mean annual water-table depth in Sphagnum-dominated peatlands of North America
Peatland-inhabiting testate amoebae are sensitive indicators of substrate-moisture conditions and have increasingly been used in palaeohydrological studies. However, to improve accuracy of testate-amoeba-based hydrological inferences, baseline ecological data on rare taxa, a larger geographic network of calibration sites, and incorporation of long-term estimates of water-table depth are needed....
متن کاملPotential implications of differential preservation of testate amoebae shells for paleoenvironmental reconstruction in peatland
Running title: testate amoebae taphonomy and paleoecology 2 Abstract Testate amoebae are now commonly used in paleoenvironmental studies but little is known of their taphonomy. There is some experimental evidence for differential preservation of some testate amoeba shell types over others, but it is unclear what, if any impact this has on palaeoenvironmental reconstruction. To investigate this ...
متن کاملComparative ecology of vascular plant, bryophyte and testate amoeba communities in four Sphagnum peatlands along an altitudinal gradient in Switzerland
Monitoring tools are needed to assess changes in peatlandbiotic communities and ecosystem functions in response to on-going climate and other environmental changes. Although the responses of soil organisms and plants to ecological gradients and perturbations do not always correlate, peatland monitoring is mainly based on vegetation surveys. Testate amoebae, a group of protists, are important co...
متن کاملPaleohydrologic reconstruction based on n-alkane distributions in ombrotrophic peat
Proxies such as plant macrofossils, humification indices and testate amoebae have been developed to reconstruct past hydrological variability in ombrotrophic peatlands. Reconstructions based on these approaches have resulted in records of decadalto centennial-scale moisture variability in regions of North America and elsewhere. Although the various peatland moisture proxies generally show signi...
متن کاملInteractions among fungal community structure, litter decomposition and depth of water table in a cutover peatland.
Peatlands are important reservoirs of carbon (C) but our understanding of C cycling on cutover peatlands is limited. We investigated the decomposition over 18 months of five types of plant litter (Calluna vulgaris, Eriophorum angustifolium, Eriophorum vaginatum, Picea sitchensis and Sphagnum auriculatum) at a cutover peatland in Scotland, at three water tables. We measured changes in C, nitroge...
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ژورنال
عنوان ژورنال: The Holocene
سال: 2019
ISSN: 0959-6836,1477-0911
DOI: 10.1177/0959683619846969