Results 21 to 30 of about 566 (161)

A regolith lead isoscape of Australia

open access: yesEarth System Science Data, 2023
Abstract. We present the first national-scale lead (Pb) isotope maps of Australia based on surface regolith for five isotope ratios, 206Pb/204Pb, 207Pb/204Pb, 208Pb/204Pb, 207Pb/206Pb, and 208Pb/206Pb, determined by single-collector sector field inductively coupled plasma mass spectrometry after an ammonium acetate leach followed by aqua regia ...
Candan Desem   +4 more
openaire   +5 more sources

Estimates of woody biomass and mixed effects improve isoscape predictions across a northern mixed forest

open access: yesFrontiers in Ecology and Evolution, 2023
Contemporary methods used to predict isotopic variation at regional scales have yet to include underlying distributions of the abundance of isotopic substrates.
John L. Berini   +6 more
doaj   +1 more source

From Isoscapes to Farmscapes: Introduction to the Special Issue [PDF]

open access: yesEnvironmental Archaeology, 2018
No abstract available.
Ascough, Philppa   +3 more
openaire   +3 more sources

A score of bioavailable strontium isotope archaeology in China: Retrospective and prospective

open access: yesFrontiers in Earth Science, 2023
Bioavailable strontium isotope analysis was proposed for prehistoric human ecology almost 40 years ago and rapidly became one of the most important tools to trace past migratory behaviours.
Zihua Tang, Zihua Tang, Xueye Wang
doaj   +1 more source

Temporal stability of δ2H in insect tissues: Implications for isotope-based geographic assignments

open access: yesFrontiers in Ecology and Evolution, 2023
Hydrogen isotope geolocation of insects is based on the assumption that the chitin in the wings of adult migratory insects preserves the hydrogen isotope composition (δ2H) of the larval stages without influence of adult diet.
Eve E. Lindroos   +5 more
doaj   +1 more source

Tracking animal movements using biomarkers in tail hairs: a novel approach for animal geolocating from sulfur isoscapes

open access: yesMovement Ecology, 2020
Background Current animal tracking studies are most often based on the application of external geolocators such as GPS and radio transmitters. While these technologies provide detailed movement data, they are costly to acquire and maintain, which often ...
Zabibu Kabalika   +10 more
doaj   +1 more source

A strontium isoscape of northern Australia

open access: yesEarth System Science Data, 2023
Abstract. Strontium isotopes (87Sr/86Sr) are useful to trace processes in the Earth sciences as well as in forensic, archaeological, palaeontological, and ecological sciences. As very few large-scale Sr isoscapes exist in Australia, we have identified an opportunity to determine 87Sr/86Sr ratios on archived fluvial sediment samples from the low-density
Patrice de Caritat   +2 more
openaire   +4 more sources

Seasonality in Southern Ocean isoscapes [PDF]

open access: yes, 2020
Polar marine ecosystems are particularly vulnerable to the effects of climate change. Warming temperatures, freshening seawater and disruption to sea ice formation potentially all have detrimental cascading effects on food webs. New approaches are needed to better understand spatio-temporal interactions among biogeochemical processes
Katie St. John Glew   +15 more
openaire   +1 more source

Using geostatistical analysis for simultaneous estimation of isoscapes and ontogenetic shifts in isotope ratios of highly migratory marine fish

open access: yesFrontiers in Marine Science, 2022
Tracking migration of highly migratory marine fish using isotope analysis (iso-logging) has become a promising tool in recent years. However, application of this method is often hampered by the lack of essential information such as spatial variations in ...
Jun Matsubayashi   +7 more
doaj   +1 more source

Geographic Variation in Diving Behaviour and Skin Isotope Ratios of Northern Bottlenose Whales, <i>Hyperoodon ampullatus</i>. [PDF]

open access: yesEcol Evol
High‐resolution multi‐sensor tag data from northern bottlenose whale populations in the northeast and northwest Atlantic showed differences in resting and foraging time budgets and behaviour. Skin biopsy stable isotopes corroborated likely dietary differences. Variability between populations has far‐reaching relevance for ecology and conservation, with
Hooker SK   +7 more
europepmc   +2 more sources

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