Combined oxygen and sulphur isotope analysis—a new tool to unravel vertebrate (paleo)-ecology
نویسندگان
چکیده
منابع مشابه
Carbon isotope compositions of terrestrial C3 plants as indicators of (paleo)ecology and (paleo)climate.
A broad compilation of modern carbon isotope compositions in all C3 plant types shows a monotonic increase in δ(13)C with decreasing mean annual precipitation (MAP) that differs from previous models. Corrections for temperature, altitude, or latitude are smaller than previously estimated. As corrected for altitude, latitude, and the δ(13)C of atmospheric CO(2), these data permit refined interpr...
متن کاملSulphur isotope geochemistry
Ab&r&-Sulphur isotope abundances of thirty-nine specimens of seventeen meteorites are reported. The resultril show again the remarkable constancy of the sulphur isotope ratios for meteorites of all types. However, differences in the SBa/Sa* ratios of 0.4 %a would appear to be significant. The Ssz/P4 ratio for meteorites is discussed as a possible base level from which fr~tion&tion in the earth’...
متن کاملBomb-curve radiocarbon measurement of recent biologic tissues and applications to wildlife forensics and stable isotope (paleo)ecology.
Above-ground thermonuclear weapons testing from 1952 through 1962 nearly doubled the concentration of radiocarbon ((14)C) in the atmosphere. As a result, organic material formed during or after this period may be radiocarbon-dated using the abrupt rise and steady fall of the atmospheric (14)C concentration known as the bomb-curve. We test the accuracy of accelerator mass spectrometry radiocarbo...
متن کاملEcology of Vertebrate Nutrition
All vertebrates require certain amounts of energy, protein and ‘essential’ nutrients. Dietary sources of energy include carbohydrates, protein and fat. Dietary protein is necessary for satisfying an animal’s protein requirements. Certain dietary nutrients are classified as ‘essential’ because they are required for synthesis or functioning of crucial chemical compounds, yet they cannot be synthe...
متن کاملThe oxygen isotope composition of dissolved anthropogenic phosphates: a new tool for eutrophication research?
High-precision oxygen isotope analyses were carried out on dissolved phosphate extracted from discharge waters from three wastewater treatment plants (WTP) located in western France, as well as on the different phosphate-based fertilizers applied by farmers in the same region. Measured delta(18)O values of phosphate from chemical fertilizers range from 19.6 to 23.1 per thousand, while those of ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Science of Nature
سال: 2020
ISSN: 0028-1042,1432-1904
DOI: 10.1007/s00114-019-1664-3