Significance testing testate amoeba water table reconstructions
نویسندگان
چکیده
منابع مشابه
Effect of taxonomic resolution on ecological and palaeoecological inference - a test using testate amoeba water table depth transfer functions
Sound taxonomy is a major requirement for quantitative environmental reconstruction using biological data. Transfer function performance should theoretically be expected to decrease with reduced taxonomic resolution. However for many groups of organisms taxonomy is imperfect and species level identification not always possible. We conducted numerical experiments on five testate amoeba water tab...
متن کاملTestate 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....
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This paper presents an optical diffraction tomography technique based on digital holographic microscopy. Quantitative 2-dimensional phase images are acquired for regularly-spaced angular positions of the specimen covering a total angle of pi, allowing to built 3-dimensional quantitative refractive index distributions by an inverse Radon transform. A 20x magnification allows a resolution better ...
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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...
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Functional traits (FT) offer a new framework to understand the ecology of organisms and overcome taxonomic difficulties that currently limit the study of minute soil taxa. FT are likely to be selected by environmental filters and hence they may provide more direct information on ecosystem characteristics than the species composition of a community. We tested the potential of testate amoeba (TA)...
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ژورنال
عنوان ژورنال: Quaternary Science Reviews
سال: 2016
ISSN: 0277-3791
DOI: 10.1016/j.quascirev.2016.01.030