scholarly journals Oxygen isotope values in bone carbonate and collagen are consistently offset for New World monkeys

2014 ◽  
Vol 10 (11) ◽  
pp. 20140759 ◽  
Author(s):  
Brooke Erin Crowley
Keyword(s):  
Oxygen Isotope ◽  
Cebus Capucinus ◽  
Alouatta Palliata ◽  
Spider Monkeys ◽  
New World Monkeys ◽  
Ecological Research ◽  
Stable Oxygen Isotopes ◽  
Laboratory Rats ◽  
Moist Forest ◽  
Stable Oxygen

Stable oxygen isotopes are increasingly used in ecological research. Here, I present oxygen isotope (δ 18 O) values for bone carbonate and collagen from howler monkeys ( Alouatta palliata ), spider monkeys ( Ateles geoffroyi ) and capuchins ( Cebus capucinus ) from three localities in Costa Rica. There are apparent differences in δ 18 O carbonate and δ 18 O collagen among species. Monkeys from moist forest have significantly lower isotope values than those from drier localities. Because patterns are similar for both substrates, discrimination (Δ) between δ 18 O carbonate and δ 18 O collagen is relatively consistent among species and localities (17.6 ± 0.9‰). Although this value is larger than that previously obtained for laboratory rats, consistency among species and localities suggests it can be used to compare δ 18 O carbonate and δ 18 O collagen for monkeys, and potentially other medium-bodied mammals. Establishing discrimination for oxygen between these substrates for wild monkeys provides a foundation for future environmental and ecological research on modern and ancient organisms.

scholarly journals A Late Quaternary Stratigraphic Framework for Eastern Mediterranean Sapropel S1 Based on AMS 14C Dates and Stable Oxygen Isotopes

Radiocarbon ◽  
1991 ◽  
Vol 33 (1) ◽  
pp. 15-21 ◽  
Author(s):  
S R Troelstra ◽  
G M Ganssen ◽  
Klaas van der Borg ◽  
A F M de Jong
Keyword(s):  
Oxygen Isotope ◽  
Oxygen Isotopes ◽  
Late Quaternary ◽  
Eastern Mediterranean ◽  
Stable Oxygen Isotopes ◽  
Stable Oxygen Isotope ◽  
Stratigraphic Framework ◽  
Stable Oxygen ◽  
Isotope Analyses ◽  
Ams Dates

Detailed stable oxygen isotope analyses coupled with AMS 14C measurements on an eastern Mediterranean sapropel S1 sequence indicate that adverse bottom conditions persisted for ca 8000 years. AMS dates on additional sequences show that complete bottom anoxia lasted for 300-800 years. The S1 event is not synchronous throughout the eastern Mediterranean, but started earlier in the deeper parts of the basin.

scholarly journals Temperature-dependent fractionation of stable oxygen isotopes in otoliths of juvenile cod (Gadus morhua L.)

2004 ◽  
Vol 61 (2) ◽  
pp. 243-251 ◽  
Author(s):  
Hans Høie ◽  
Erling Otterlei ◽  
Arild Folkvord
Keyword(s):  
Ambient Temperature ◽  
Oxygen Isotope ◽  
Oxygen Isotopes ◽  
Gadus Morhua ◽  
Repeated Measurements ◽  
Stable Oxygen Isotopes ◽  
Temperature Dependent ◽  
Oxygen Isotope Fractionation ◽  
Stable Oxygen ◽  
Left And Right

Abstract Analysis of stable oxygen isotopes in otoliths is a promising technique for estimating the ambient temperature experienced by fish, but consistent equations relating temperature and fractionation of stable oxygen isotopes in otoliths among different fish species are lacking. Juvenile cod were reared at constant temperatures from 6 to 20°C and the sagittal otoliths were analysed for oxygen isotope values. We determined that temperature-dependent fractionation of oxygen isotopes in the otoliths was close to that reported for inorganic aragonite at low temperatures, but there were deviations from oxygen isotope fractionation equations for otoliths of other species. The linear relationship between oxygen isotope value in the cod otoliths and temperature was determined to be: 1000 Ln α = 16.75(103 TK−1) − 27.09. Temperature estimates with 1°C precision at the 95% probability level require a sample size of ≥5 otoliths. Only an insignificant amount of the variance in the data was due to variance between left and right otolith, and due to repeated measurements of otolith subsamples. This study confirms that stable isotope values of cod otoliths can give precise and accurate estimates of the ambient temperature experienced by fish.

scholarly journals Composite data set of last glacial Dansgaard/Oeschger events obtained from stable oxygen isotopes in speleothems

2020 ◽  
Author(s):  
Jens Fohlmeister ◽  
Niklas Bores ◽  
Norbert Marwan ◽  
Andrea Columbu ◽  
Kira Rehfeld ◽  
...  
Keyword(s):  
Oxygen Isotope ◽  
Isotope Composition ◽  
Stable Oxygen Isotopes ◽  
Data Set ◽  
Last Glacial Period ◽  
Stable Oxygen Isotope ◽  
Last Glacial ◽  
Stable Oxygen ◽  
The Last Glacial ◽  
Millennial Scale

<p>Millennial scale climate variations called Dansgaard-Oeschger cycles occurred frequently during the last glacial, with their central impact on climate in the North Atlantic region. These events are, for example, well captured by the stable oxygen isotope composition in continental ice from Greenland, but also in records from other regions. Recently, it has been shown that a water isotope enabled general circulation model is able to reproduce those millennial-scale oxygen isotope changes from Greenland (Sime et al., 2019). On a global scale, this isotope-enabled model has not been tested in its performance, as stable oxygen isotope records covering those millennial scale variability were so far missing or not systematically compiled.</p><p>In the continental realm, speleothems provide an excellent archive to store the oxygen isotope composition in precipitation during those rapid events. Here, we use a newly established speleothem data base (SISAL, Atsawawaranunt et al., 2018) from which we extracted 126 speleothems, growing in some interval during the last glacial period. We established an automated method for identification of the rapid onsets of interstadials. While the applied method seems to be not sensitive enough to capture all warming events due to the diverse characteristics of speleothem data (temporal resolution, growth stops and dating uncertainties) and low signal-to-noise-ratio, we are confident that our method is not detecting variations in stable oxygen isotopes that do not reflect stadial-interstadial transitions. Finally, all found transitions were stacked for individual speleothem records in order to provide a mean stadial-interstadial transition for various continental locations. This data set could be useful for future comparison of isotope enabled model simulations and corresponding observations, and to test their ability in modelling millennial scale variability.</p><p> </p><p>References</p><p>Atsawawaranunt, et al. (2018). The SISAL database: A global resource to document oxygen and carbon isotope records from speleothems. Earth System Science Data 10, 1687–1713</p><p>Sime, L. C., Hopcroft, P. O., Rhodes, R. H. (2019). Impact of abrupt sea ice loss on Greenland water isotopes during the last glacial period. PNAS 116, 4099-4104.</p>

scholarly journals New Ag 3 PO 4 comparison material for stable oxygen isotope analysis

2021 ◽  
Author(s):  
Andrea Watzinger ◽  
Katharina Schott ◽  
Rebecca Hood‐Nowotny ◽  
Federica Tamburini ◽  
Laura Arppe ◽  
...  
Keyword(s):  
Oxygen Isotope ◽  
Isotope Analysis ◽  
Stable Oxygen Isotope ◽  
Stable Oxygen

scholarly journals Stable oxygen isotopes in shallow marine ostracodes from the northern Bering and Chukchi Seas

2021 ◽  
pp. 101979
Author(s):  
L. Gemery ◽  
L.W. Cooper ◽  
C. Magen ◽  
T.M. Cronin ◽  
J.M. Grebmeier
Keyword(s):  
Oxygen Isotopes ◽  
Stable Oxygen Isotopes ◽  
Shallow Marine ◽  
Stable Oxygen

Stable oxygen isotope signatures of early season wood in New Zealand kauri ( Agathis australis) tree rings: Prospects for palaeoclimate reconstruction

2016 ◽  
Vol 40 ◽  
pp. 50-63 ◽  
Author(s):  
Andrew M. Lorrey ◽  
Tom H. Brookman ◽  
Michael N. Evans ◽  
Nicolas C. Fauchereau ◽  
Cate Macinnis-Ng ◽  
...  
Keyword(s):  
New Zealand ◽  
Oxygen Isotope ◽  
Tree Rings ◽  
Stable Oxygen Isotope ◽  
Early Season ◽  
Stable Oxygen

Soil Phosphate Stable Oxygen Isotopes across Rainfall and Bedrock Gradients

2012 ◽  
Vol 46 (4) ◽  
pp. 2156-2162 ◽  
Author(s):  
Alon Angert ◽  
Tal Weiner ◽  
Shunit Mazeh ◽  
Marcelo Sternberg
Keyword(s):  
Oxygen Isotopes ◽  
Stable Oxygen Isotopes ◽  
Soil Phosphate ◽  
Stable Oxygen
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