James R Ehleringer

James R Ehleringer

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James R Ehleringer

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Strontium isotope ratios of human hair from the United States: Patterns and aberrations.

Rapid Commun Mass Spectrom 2019 Mar;33(5):461-472

Department of Biology, University of Utah, 257 S 1400 E, Salt Lake City, UT, 84112, USA.

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http://dx.doi.org/10.1002/rcm.8378DOI Listing
March 2019

Traveling There and Back Again: A Fingernail's Tale.

J Forensic Sci 2019 Jan 28;64(1):69-76. Epub 2018 Jun 28.

Department of Biology, University of Utah, Salt Lake City, UT, 84112.

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http://dx.doi.org/10.1111/1556-4029.13852DOI Listing
January 2019

Resident and Nonresident Fingernail Isotopes Reveal Diet and Travel Patterns,.

J Forensic Sci 2019 Jan 5;64(1):77-87. Epub 2018 Jul 5.

Department of Biology, University of Utah, Salt Lake City, UT, 84112.

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http://dx.doi.org/10.1111/1556-4029.13856DOI Listing
January 2019

Disentangling seasonal and interannual legacies from inferred patterns of forest water and carbon cycling using tree-ring stable isotopes.

Glob Chang Biol 2018 11 1;24(11):5332-5347. Epub 2018 Aug 1.

Laboratory of Tree-Ring Research, University of Arizona, Tucson, Arizona.

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http://dx.doi.org/10.1111/gcb.14395DOI Listing
November 2018

Strontium isotope ratios ( Sr/ Sr) of human fingernail clippings reveal multiple location signals.

Rapid Commun Mass Spectrom 2018 Nov;32(22):1922-1930

Department of Biology, University of Utah, Salt Lake City, UT, 84112, USA.

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http://dx.doi.org/10.1002/rcm.8270DOI Listing
November 2018

Distinctions in heterotrophic and autotrophic-based metabolism as recorded in the hydrogen and carbon isotope ratios of normal alkanes.

Oecologia 2018 08 28;187(4):1053-1075. Epub 2018 Jun 28.

Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, UT, 84112, USA.

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http://dx.doi.org/10.1007/s00442-018-4189-0DOI Listing
August 2018

Some like it hot: the physiological ecology of C plant evolution.

Oecologia 2018 08 28;187(4):941-966. Epub 2018 Jun 28.

Section of Evolution and Ecology, College of Biological Sciences, University of California, Davis, CA, 95616, USA.

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http://dx.doi.org/10.1007/s00442-018-4191-6DOI Listing
August 2018

Ecophysiological plasticity of Amazonian trees to long-term drought.

Oecologia 2018 08 28;187(4):933-940. Epub 2018 Jun 28.

University of Utah, Salt Lake City, UT, USA.

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http://dx.doi.org/10.1007/s00442-018-4195-2DOI Listing
August 2018

A tale of ENSO, PDO, and increasing aridity impacts on drought-deciduous shrubs in the Death Valley region.

Oecologia 2018 08 28;187(4):879-895. Epub 2018 Jun 28.

Department of Biological Science, California State University, 800 North State College Blvd., Fullerton, CA, 92834, USA.

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http://dx.doi.org/10.1007/s00442-018-4200-9DOI Listing
August 2018

Evaluation of childhood nutrition by dietary survey and stable isotope analyses of hair and breath.

Am J Hum Biol 2018 05 1;30(3):e23103. Epub 2018 Feb 1.

Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, Utah 84112.

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http://dx.doi.org/10.1002/ajhb.23103DOI Listing
May 2018

TATP isotope ratios as influenced by worldwide acetone variation.

Talanta 2018 May 4;181:125-131. Epub 2018 Jan 4.

IsoForensics, Inc., 421 Wakara Way, Suite 100, Salt Lake City, UT 84108, United States.

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http://dx.doi.org/10.1016/j.talanta.2018.01.001DOI Listing
May 2018

Strontium isotope ratios of human hair record intra-city variations in tap water source.

Sci Rep 2018 02 20;8(1):3334. Epub 2018 Feb 20.

Department of Biology, University of Utah, Salt Lake City, UT, 84112, USA.

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http://dx.doi.org/10.1038/s41598-018-21359-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5820339PMC
February 2018

Urban water - a new frontier in isotope hydrology.

Isotopes Environ Health Stud 2016 Aug-Oct;52(4-5):477-86. Epub 2016 May 4.

b Department of Geology and Geophysics , University of Utah , Salt Lake City , UT , USA.

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http://dx.doi.org/10.1080/10256016.2016.1171217DOI Listing
April 2017

Reconstruction of travel history using coupled δ O and Sr/ Sr measurements of hair.

Rapid Commun Mass Spectrom 2017 Mar;31(6):583-589

IsoForensics, Inc., 421 Wakara Way, Suite 100, Salt Lake City, UT, 84108, USA.

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http://dx.doi.org/10.1002/rcm.7822DOI Listing
March 2017

The influences of cultivation setting on inflorescence lipid distributions, concentrations, and carbon isotope ratios of Cannabis sp.

Forensic Sci Int 2016 May 22;262:233-41. Epub 2016 Mar 22.

Department of Biology, University of Utah, Salt Lake City, UT 84112, United States; Global Change and Sustainability Center, University of Utah, Salt Lake City, UT 84112, United States. Electronic address:

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http://dx.doi.org/10.1016/j.forsciint.2016.03.029DOI Listing
May 2016

Life form-specific gradients in compound-specific hydrogen isotope ratios of modern leaf waxes along a North American Monsoonal transect.

Oecologia 2015 Dec 27;179(4):981-97. Epub 2015 Aug 27.

Global Change and Sustainability Center, University of Utah, Salt Lake City, UT, 84112, USA.

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http://dx.doi.org/10.1007/s00442-015-3432-1DOI Listing
December 2015

Stable isotopes (carbon, nitrogen, sulfur), diet, and anthropometry in urban Colombian women: investigating socioeconomic differences.

Am J Hum Biol 2015 Mar-Apr;27(2):207-18. Epub 2014 Oct 12.

Department of Anthropology, University of Colorado, Boulder, Colorado.

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http://dx.doi.org/10.1002/ajhb.22640DOI Listing
November 2015

Improved accuracy and precision in δ15 NAIR measurements of explosives, urea, and inorganic nitrates by elemental analyzer/isotope ratio mass spectrometry using thermal decomposition.

Rapid Commun Mass Spectrom 2015 Aug;29(15):1381-8

IsoForensics, Inc., 421 Wakara Way, Suite 100, Salt Lake City, UT, 84108, USA.

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http://dx.doi.org/10.1002/rcm.7229DOI Listing
August 2015

Predicting leaf wax n-alkane 2H/1H ratios: controlled water source and humidity experiments with hydroponically grown trees confirm predictions of Craig-Gordon model.

Plant Cell Environ 2015 Jun 11;38(6):1035-47. Epub 2014 Nov 11.

Department of Biology, University of Utah, Salt Lake City, UT, 84112, USA; Global Change and Sustainability Center, University of Utah, Salt Lake City, UT, 84112, USA.

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http://dx.doi.org/10.1111/pce.12457DOI Listing
June 2015

Vapor hydrogen and oxygen isotopes reflect water of combustion in the urban atmosphere.

Proc Natl Acad Sci U S A 2015 Mar 2;112(11):3247-52. Epub 2015 Mar 2.

Department of Geology & Geophysics, Global Change and Sustainability Center, and

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http://dx.doi.org/10.1073/pnas.1424728112DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4371996PMC
March 2015

The potential for application of ink stable isotope analysis in questioned document examination.

Sci Justice 2015 Jan 16;55(1):27-33. Epub 2014 Jun 16.

IsoForensics Inc., 421 Wakara Way, Suite 100, Salt Lake City, UT 84108, USA; Department of Biology, University of Utah, 257 S 1400 E, Salt Lake City, UT 84112, USA.

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http://dx.doi.org/10.1016/j.scijus.2014.05.010DOI Listing
January 2015

Observations and sources of carbon and nitrogen isotope ratio variation of pentaerythritol tetranitrate (PETN).

Forensic Sci Int 2014 Nov 7;244:152-7. Epub 2014 Sep 7.

IsoForensics, Inc., 421 Wakara Way, Suite 100, Salt Lake City, UT 84108, United States; Department of Biology, University of Utah, Salt Lake City, UT 84112, United States.

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http://dx.doi.org/10.1016/j.forsciint.2014.08.036DOI Listing
November 2014

Deconvolution of isotope signals from bundles of multiple hairs.

Oecologia 2014 Jul 3;175(3):781-9. Epub 2014 May 3.

National Institute for Mathematical and Biological Synthesis, University of Tennessee, Knoxville, TN, 37996, USA,

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http://dx.doi.org/10.1007/s00442-014-2945-3DOI Listing
July 2014

Carbon and nitrogen isotope ratios of factory-produced RDX and HMX.

Forensic Sci Int 2014 Jul 16;240:80-7. Epub 2014 Apr 16.

IsoForensics, Inc., 421 Wakara Way, Suite 100, Salt Lake City, UT 84108, United States; Department of Biology, University of Utah, Salt Lake City, UT 84112, United States.

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http://dx.doi.org/10.1016/j.forsciint.2014.04.013DOI Listing
July 2014

Isolation and stable nitrogen isotope analysis of ammonium ions in ammonium nitrate prills using sodium tetraphenylborate.

Rapid Commun Mass Spectrom 2014 Jul;28(13):1530-4

IsoForensics, Inc., 421 Wakara Way, Suite 100, Salt Lake City, UT, 84108, USA.

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http://dx.doi.org/10.1002/rcm.6929DOI Listing
July 2014

Gender specific patterns of carbon uptake and water use in a dominant riparian tree species exposed to a warming climate.

Glob Chang Biol 2013 Nov 28;19(11):3390-405. Epub 2013 Aug 28.

Department of Research, Conservation and Collections, Desert Botanical Garden, Phoenix, AZ, 85008, USA.

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http://dx.doi.org/10.1111/gcb.12230DOI Listing
November 2013

Isolation of strontium pools and isotope ratios in modern human hair.

Anal Chim Acta 2013 Oct 7;798:64-73. Epub 2013 Sep 7.

IsoForensics Inc, 421 Wakara Way, Suite 100, Salt Lake City, UT 84108, USA; University of Utah, Department of Biology, 257 South 1400 East, Salt Lake City, UT 84112, USA. Electronic address:

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http://dx.doi.org/10.1016/j.aca.2013.08.054DOI Listing
October 2013

Leaf-wax n-alkanes record the plant-water environment at leaf flush.

Proc Natl Acad Sci U S A 2013 Feb 28;110(7):2659-64. Epub 2013 Jan 28.

Department of Biology, University of Utah, Salt Lake City, UT 84112, USA.

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http://dx.doi.org/10.1073/pnas.1213875110DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3574905PMC
February 2013

Forensic applications of light-element stable isotope ratios of Ricinus communis seeds and ricin preparations.

J Forensic Sci 2013 Jan 6;58 Suppl 1:S43-51. Epub 2012 Nov 6.

Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, UT 84112, USA.

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http://dx.doi.org/10.1111/1556-4029.12000DOI Listing
January 2013

δ2H and δ18O of human body water: a GIS model to distinguish residents from non-residents in the contiguous USA.

Isotopes Environ Health Stud 2012 Jun 7;48(2):259-79. Epub 2012 Mar 7.

Department of Biology, University of Utah, Salt Lake City, UT, USA.

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http://www.tandfonline.com/doi/abs/10.1080/10256016.2012.644
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http://dx.doi.org/10.1080/10256016.2012.644283DOI Listing
June 2012

Assessment of ground-based atmospheric observations for verification of greenhouse gas emissions from an urban region.

Proc Natl Acad Sci U S A 2012 May 18;109(22):8423-8. Epub 2012 May 18.

Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA 02138, USA.

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http://dx.doi.org/10.1073/pnas.1116645109DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3365165PMC
May 2012

14C analyses quantify time lag between coca leaf harvest and street-level seizure of cocaine.

Forensic Sci Int 2012 Jan 16;214(1-3):7-12. Epub 2011 Sep 16.

Department of Biology, University of Utah, Salt Lake City, UT 84112, United States.

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http://dx.doi.org/10.1016/j.forsciint.2011.05.003DOI Listing
January 2012

Consistent predictable patterns in the hydrogen and oxygen stable isotope ratios of animal proteins consumed by modern humans in the USA.

Rapid Commun Mass Spectrom 2011 Dec;25(24):3713-22

IsoForensics Inc., Salt Lake City, UT 84108, USA.

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December 2011

Temporal variation of oxygen isotope ratios (δ18O) in drinking water: implications for specifying location of origin with human scalp hair.

Forensic Sci Int 2011 May 21;208(1-3):156-66. Epub 2011 Feb 21.

Purdue University, Department of Earth and Atmospheric Sciences, West Lafayette, IN 47907-2051, USA.

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http://dx.doi.org/10.1016/j.forsciint.2010.11.021DOI Listing
May 2011

Hydrogen and oxygen isotope values in hydrogen peroxide.

Rapid Commun Mass Spectrom 2011 May;25(10):1422-8

IsoForensics Inc., 423 Wakara Way, Suite 205, Salt Lake City, UT 84108, USA.

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http://dx.doi.org/10.1002/rcm.5004DOI Listing
May 2011

Spatial distributions of carbon, nitrogen and sulfur isotope ratios in human hair across the central United States.

Rapid Commun Mass Spectrom 2011 Apr 14;25(7):861-8. Epub 2011 Mar 14.

Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, UT 84112, USA.

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http://dx.doi.org/10.1002/rcm.4934DOI Listing
April 2011

Deuterium excess reveals diurnal sources of water vapor in forest air.

Oecologia 2011 Jan 21;165(1):213-23. Epub 2010 Jul 21.

Department of Biology, San Diego State University, San Diego, CA 92182, USA.

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http://dx.doi.org/10.1007/s00442-010-1721-2DOI Listing
January 2011

Calibration of thermal dissipation sap flow probes for ring- and diffuse-porous trees.

Tree Physiol 2010 Dec;30(12):1545-54

Department of Biology, University of Utah, Salt Lake City, UT 84112, USA.

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http://dx.doi.org/10.1093/treephys/tpq096DOI Listing
December 2010

Accuracy and precision of a laser-spectroscopy approach to the analysis of δ²H and δ¹⁸O in human urine.

Isotopes Environ Health Stud 2010 Dec;46(4):476-83

Department of Biology, University of Utah, Salt Lake City, UT 84112, USA.

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http://dx.doi.org/10.1080/10256016.2010.536229DOI Listing
December 2010

Analysis of the hydrogen and oxygen stable isotope ratios of beverage waters without prior water extraction using isotope ratio infrared spectroscopy.

Rapid Commun Mass Spectrom 2010 Nov;24(21):3205-13

IsoForensics Inc., 423 Wakara Way, Suite 205, Salt Lake City, UT 84108, USA.

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http://dx.doi.org/10.1002/rcm.4759DOI Listing
November 2010

Stable isotope models to predict geographic origin and cultivation conditions of marijuana.

Sci Justice 2010 Jun 8;50(2):86-93. Epub 2010 Jan 8.

University of Utah, Department of Biology, Salt Lake City, UT 84112, USA.

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http://dx.doi.org/10.1016/j.scijus.2009.11.003DOI Listing
June 2010

Links between purchase location and stable isotope ratios of bottled water, soda, and beer in the United States.

J Agric Food Chem 2010 Jun;58(12):7311-6

IsoForensics Inc., Suite 205, Salt Lake City, Utah 84108, USA.

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http://dx.doi.org/10.1021/jf1003539DOI Listing
June 2010

Tracing retail cannabis in the United States: geographic origin and cultivation patterns.

Int J Drug Policy 2010 May 17;21(3):222-8. Epub 2009 Sep 17.

Department of Biology, University of Utah, Salt Lake City, UT 84112, United States.

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http://dx.doi.org/10.1016/j.drugpo.2009.08.001DOI Listing
May 2010

Hydrogen and oxygen stable isotope ratios of milk in the United States.

J Agric Food Chem 2010 Feb;58(4):2358-63

IsoForensics, Inc, Suite 205, 423 Wakara Way, Salt Lake City, Utah 84108, USA.

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http://dx.doi.org/10.1021/jf904151cDOI Listing
February 2010

The stable isotope ratios of marijuana. II. Strontium isotopes relate to geographic origin.

J Forensic Sci 2009 Nov 5;54(6):1261-9. Epub 2009 Oct 5.

Department of Biology, University of Utah, Salt Lake City, UT 84112, USA.

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http://dx.doi.org/10.1111/j.1556-4029.2009.01171.xDOI Listing
November 2009

Dietary and physiological controls on the hydrogen and oxygen isotope ratios of hair from mid-20th century indigenous populations.

Am J Phys Anthropol 2009 Aug;139(4):494-504

Department of Biology, University of Utah, Salt Lake City, UT 84112, USA.

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http://dx.doi.org/10.1002/ajpa.21008DOI Listing
August 2009

Evaluating uncertainty in the calculation of non-exchangeable hydrogen fractions within organic materials.

Rapid Commun Mass Spectrom 2009 May;23(9):1275-80

Biology Department, University of Utah, Salt Lake City, UT 84112, USA.

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http://doi.wiley.com/10.1002/rcm.4000
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http://dx.doi.org/10.1002/rcm.4000DOI Listing
May 2009

History of Animals using Isotope Records (HAIR): a 6-year dietary history of one family of African elephants.

Proc Natl Acad Sci U S A 2009 May 13;106(20):8093-100. Epub 2009 Apr 13.

Department of Geology and Geophysics, University of Utah, Salt Lake City, UT 84112, USA.

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http://dx.doi.org/10.1073/pnas.0902192106DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2688856PMC
May 2009

Stable isotope ratios of marijuana. I. Carbon and nitrogen stable isotopes describe growth conditions.

J Forensic Sci 2009 Jan 1;54(1):84-9. Epub 2008 Nov 1.

Department of Biology, University of Utah, 257 S 1400 E, Salt Lake City, UT 84112, USA.

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http://dx.doi.org/10.1111/j.1556-4029.2008.00909.xDOI Listing
January 2009

Life form-specific variations in leaf water oxygen-18 enrichment in Amazonian vegetation.

Oecologia 2008 Aug 10;157(2):197-210. Epub 2008 Jun 10.

Department of Biology, San Diego State University, San Diego, CA 92182, USA.

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http://dx.doi.org/10.1007/s00442-008-1071-5DOI Listing
August 2008

Variation of hydrogen, carbon, nitrogen, and oxygen stable isotope ratios in an American diet: fast food meals.

J Agric Food Chem 2008 Jun 16;56(11):4084-91. Epub 2008 May 16.

Department of Biology, University of Utah, Salt Lake City, Utah 84112, USA.

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http://dx.doi.org/10.1021/jf0733618DOI Listing
June 2008

A simplified GIS approach to modeling global leaf water isoscapes.

PLoS One 2008 Jun 18;3(6):e2447. Epub 2008 Jun 18.

Department of Biology, University of Utah, Salt Lake City, Utah, United States of America.

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0002447PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2413011PMC
June 2008

Wood anatomy constrains stomatal responses to atmospheric vapor pressure deficit in irrigated, urban trees.

Oecologia 2008 May 13;156(1):13-20. Epub 2008 Feb 13.

Department of Biology, University of Utah, Salt Lake City, UT 84112, USA.

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http://dx.doi.org/10.1007/s00442-008-0966-5DOI Listing
May 2008

Hydrogen and oxygen isotope ratios in human hair are related to geography.

Proc Natl Acad Sci U S A 2008 Feb 25;105(8):2788-93. Epub 2008 Feb 25.

IsoForensics, Inc., 423 Wakara Way, Suite 205, Salt Lake City, UT 84108, USA.

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http://dx.doi.org/10.1073/pnas.0712228105DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2268538PMC
February 2008

Environmental controls on the carbon isotope composition of ecosystem-respired CO2 in contrasting forest ecosystems in Canada and the USA.

Tree Physiol 2007 Oct;27(10):1361-74

Department of Biological Sciences, University of Lethbridge, 4401 University Drive, Lethbridge, AB T1K 3M4, Canada.

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http://dx.doi.org/10.1093/treephys/27.10.1361DOI Listing
October 2007

Regional-scale estimates of forest CO2 and isotope flux based on monthly CO2 budgets of the atmospheric boundary layer.

SEB Exp Biol Ser 2005 :77-92

Department of Global Ecology, Carneigie Institution of Washington, Stanford, USA.

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September 2007

Water extraction times for plant and soil materials used in stable isotope analysis.

Rapid Commun Mass Spectrom 2006 ;20(8):1317-21

SIRFER, 257 S. 1400 E., Department of Biology, University of Utah, Salt Lake City, UT 84112, USA.

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http://doi.wiley.com/10.1002/rcm.2456
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http://dx.doi.org/10.1002/rcm.2456DOI Listing
August 2007

Geography and vintage predicted by a novel GIS model of wine delta18O.

J Agric Food Chem 2007 Aug 21;55(17):7075-83. Epub 2007 Jul 21.

Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, Utah 84112, USA.

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http://dx.doi.org/10.1021/jf071211rDOI Listing
August 2007

Summer precipitation influences the stable oxygen and carbon isotopic composition of tree-ring cellulose in Pinus ponderosa.

Tree Physiol 2007 Apr;27(4):491-501

Department of Biology, Southern Oregon University, Ashland, OR 97520, USA.

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http://dx.doi.org/10.1093/treephys/27.4.491DOI Listing
April 2007

Determining biological tissue turnover using stable isotopes: the reaction progress variable.

Oecologia 2007 Mar 21;151(2):175-89. Epub 2006 Dec 21.

Department of Geology and Geophysics, University of Utah, Salt Lake City, UT 84112-0111, USA.

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http://dx.doi.org/10.1007/s00442-006-0571-4DOI Listing
March 2007

Metabolic processes account for the majority of the intracellular water in log-phase Escherichia coli cells as revealed by hydrogen isotopes.

Biochemistry 2006 Nov;45(45):13622-30

Chemical and Biological Sciences, Pacific Northwest National Laboratory, 999 Battelle Boulevard, P8-08, Richland, Washington 99350, USA. helen.kreuzer@ pnl.gov

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http://dx.doi.org/10.1021/bi0609164DOI Listing
November 2006

Geographical patterns of human diet derived from stable-isotope analysis of fingernails.

Am J Phys Anthropol 2006 Sep;131(1):137-46

Laboratório de Ecologia Isotópica, Centro de Energia Nuclear na Agricultura-Universidade de São Paulo, 13416-000 Piracicaba, São Paulo, Brazil.

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http://www.iai.int/wp-content/uploads/2006_Nardoto-et-al_AJP
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http://doi.wiley.com/10.1002/ajpa.20409
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http://dx.doi.org/10.1002/ajpa.20409DOI Listing
September 2006

Stable isotopes as one of nature's ecological recorders.

Trends Ecol Evol 2006 Jul 2;21(7):408-14. Epub 2006 May 2.

Department of Biology, University of Utah, Salt Lake City, UT 84115, USA.

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http://dx.doi.org/10.1016/j.tree.2006.04.002DOI Listing
July 2006

A stable isotope aridity index for terrestrial environments.

Proc Natl Acad Sci U S A 2006 Jul 13;103(30):11201-5. Epub 2006 Jul 13.

Department of Geology and Geophysics, University of Utah, 135 South 1460 East, Salt Lake City, UT 84112, USA.

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http://dx.doi.org/10.1073/pnas.0604719103DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1544065PMC
July 2006

Treatment methods for the determination of delta2H and delta18O of hair keratin by continuous-flow isotope-ratio mass spectrometry.

Rapid Commun Mass Spectrom 2005 ;19(17):2371-8

Department of Biology, University of Utah, Salt Lake City, UT 84112, USA.

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http://dx.doi.org/10.1002/rcm.2069DOI Listing
March 2006

Stable hydrogen and oxygen isotope ratios of bottled waters of the world.

Rapid Commun Mass Spectrom 2005 ;19(23):3442-50

Biology Department, University of Utah, Salt Lake City, UT 84112, USA.

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http://dx.doi.org/10.1002/rcm.2216DOI Listing
January 2006

Contributions of evaporation, isotopic non-steady state transpiration and atmospheric mixing on the delta18O of water vapour in Pacific Northwest coniferous forests.

Plant Cell Environ 2006 Jan;29(1):77-94

Department of Biology, University of Utah, 257S 1400E, Salt Lake City, UT 84112-0840, USA.

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January 2006

Oxygen isotopes indicate most intracellular water in log-phase Escherichia coli is derived from metabolism.

Proc Natl Acad Sci U S A 2005 Nov 21;102(48):17337-41. Epub 2005 Nov 21.

Stable Isotope Ratio Facility for Environmental Research, Department of Biology, University of Utah, Salt Lake City, UT 84112-0840, USA.

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http://dx.doi.org/10.1073/pnas.0506531102DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1297667PMC
November 2005

Isotopic fractionation of carbon and nitrogen during the illicit processing of cocaine and heroin in South America.

J Forensic Sci 2005 Nov;50(6):1315-21

Special Testing and Research Laboratory, Drug Enforcement Administration, U.S. Department of Justice, Dulles, VA 20166-9509, USA.

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November 2005

Stable isotope ratios as a tool in microbial forensics--part 3. Effect of culturing on agar-containing growth media.

J Forensic Sci 2005 Nov;50(6):1372-9

Stable Isotope Ratio Facility for Environmental Research, 257 S. 1400 E., Department of Biology, University of Utah, Salt Lake City, UT 84112, USA.

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November 2005

An automated system for stable isotope and concentration analyses of CO2 from small atmospheric samples.

Rapid Commun Mass Spectrom 2005 ;19(3):359-62

Stable Isotope Ratio Facility for Environmental Research, Department of Biology, University of Utah, 257 S. 1400 E., Salt Lake City, UT 84112, USA.

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http://dx.doi.org/10.1002/rcm.1792DOI Listing
April 2005

Carbon starvation in glacial trees recovered from the La Brea tar pits, southern California.

Proc Natl Acad Sci U S A 2005 Jan 10;102(3):690-4. Epub 2005 Jan 10.

Department of Ecology and Evolutionary Biology, University of Kansas, 1200 Sunnyside Avenue, Lawrence, KS 66045, USA.

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http://dx.doi.org/10.1073/pnas.0408315102DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC544040PMC
January 2005

Stable isotope ratios as a tool in microbial forensics--Part 1. Microbial isotopic composition as a function of growth medium.

J Forensic Sci 2004 Sep;49(5):954-60

Stable Isotope Ratio Facility for Environmental Research, 257 S. 1400 E., Department of Biology, University of Utah, Salt Lake City, Utah 84112-0840, USA.

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September 2004

Stable isotope ratios as a tool in microbial forensics--Part 2. Isotopic variation among different growth media as a tool for sourcing origins of bacterial cells or spores.

J Forensic Sci 2004 Sep;49(5):961-7

Stable Isotope Ratio Facility for Environmental Research, 257 S. 1400 E., Department of Biology, University of Utah, Salt Lake City, Utah 84112-0840, USA.

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September 2004

Expressing leaf water and cellulose oxygen isotope ratios as enrichment above source water reveals evidence of a Péclet effect.

Oecologia 2004 Feb 10;138(3):426-35. Epub 2003 Dec 10.

Landcare Research, P.O. Box 69, 8152 Lincoln, New Zealand.

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http://dx.doi.org/10.1007/s00442-003-1449-3DOI Listing
February 2004

Population- and family-level variation of brittlebush (Encelia farinosa, Asteraceae) pubescence: its relation to drought and implications for selection in variable environments.

Am J Bot 2003 Oct;90(10):1481-6

Department of Biological Science, California State University, Fullerton, California 92834 USA;

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http://dx.doi.org/10.3732/ajb.90.10.1481DOI Listing
October 2003

Dominant cold desert plants do not partition warm season precipitation by event size.

Oecologia 2003 Jul 15;136(2):252-60. Epub 2003 Apr 15.

Biosphere 2 Center, University of Utah, PO Box 689, Oracle, AZ 85623, USA.

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http://dx.doi.org/10.1007/s00442-003-1255-yDOI Listing
July 2003

Temporal variation in delta(13)C of ecosystem respiration in the Pacific Northwest: links to moisture stress.

Oecologia 2003 Jun 15;136(1):129-36. Epub 2003 May 15.

SIRFER, Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, UT 84112, USA.

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http://dx.doi.org/10.1007/s00442-003-1260-1DOI Listing
June 2003

Carbon isotope discrimination differences within and between contrasting populations of Encelia farinosa raised under common-environment conditions.

Oecologia 2003 Mar 30;134(4):463-70. Epub 2003 Jan 30.

Department of Biological Science, California State University, Fullerton 92834, USA.

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http://dx.doi.org/10.1007/s00442-002-1129-8DOI Listing
March 2003

Microbe forensics: oxygen and hydrogen stable isotope ratios in Bacillus subtilis cells and spores.

Proc Natl Acad Sci U S A 2003 Feb 27;100(3):815-9. Epub 2003 Jan 27.

Stable Isotope Ratio Facility for Environmental Research, Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, UT 84112, USA.

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http://dx.doi.org/10.1073/pnas.252747799DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC298684PMC
February 2003

Rapid 18O analysis of small water and CO2 samples using a continuous-flow isotope ratio mass spectrometer.

Rapid Commun Mass Spectrom 2002 ;16(13):1257-60

Stable Isotope Ratio Facility for Environmental Research, Department of Biology, University of Utah, 257 S. 1400 E., Salt Lake City, UT 84112, USA.

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http://dx.doi.org/10.1002/rcm.711DOI Listing
August 2002

Atmospheric CO2 as a Global Change Driver Influencing Plant-Animal Interactions.

Integr Comp Biol 2002 Jul;42(3):424-30

Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, Utah 84112-0840.

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http://dx.doi.org/10.1093/icb/42.3.424DOI Listing
July 2002

A rapid and precise method for sampling and determining the oxygen isotope ratio of atmospheric water vapor.

Rapid Commun Mass Spectrom 2002 ;16(10):929-32

SIRFER, 257 S. 1400 E., Department of Biology, University of Utah, Salt Lake City 84112, USA.

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http://dx.doi.org/10.1002/rcm.659DOI Listing
June 2002

C content of ecosystem respiration is linked to precipitation and vapor pressure deficit.

Oecologia 2002 Mar 1;131(1):113-124. Epub 2002 Mar 1.

Stable Isotope Ratio Facility for Environmental Research, Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, UT, 84112-0820, USA.

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http://dx.doi.org/10.1007/s00442-001-0851-yDOI Listing
March 2002

Deuterium enriched irrigation indicates different forms of rain use in shrub/grass species of the Colorado Plateau.

Oecologia 2002 Feb 1;130(3):345-355. Epub 2002 Feb 1.

Department of Biology, University of Utah, Salt Lake City, Utah, UT, 84112, USA.

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http://dx.doi.org/10.1007/s00442-001-0817-0DOI Listing
February 2002

Age-related variations in delta(13)C of ecosystem respiration across a coniferous forest chronosequence in the Pacific Northwest.

Tree Physiol 2002 Feb;22(2-3):159-67

Stable Isotope Ratio Facility for Environmental Research, Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, UT 84112, USA.

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http://dx.doi.org/10.1093/treephys/22.2-3.159DOI Listing
February 2002

Hydrogen and oxygen isotope ratios of tree-ring cellulose for riparian trees grown long-term under hydroponically controlled environments.

Oecologia 1999 Dec;121(4):467-477

Stable Isotope Ratio Facility for Environmental Research, Department of Biology, University of Utah, Salt Lake City, UT 84112, USA, , , , , , US.

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http://dx.doi.org/10.1007/s004420050953DOI Listing
December 1999

Intraspecific variation of drought adaptation in brittlebush: leaf pubescence and timing of leaf loss vary with rainfall.

Oecologia 1998 Jan;113(2):162-169

Department of Biology, University of Utah, Salt Lake City, UT 84112, USA, , , , , , US.

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http://dx.doi.org/10.1007/s004420050364DOI Listing
January 1998

C photosynthesis, atmospheric CO, and climate.

Oecologia 1997 Oct;112(3):285-299

Stable Isotope Ratio Facility for Environmental Research, Department of Biology, University of Utah, Salt Lake City, UT 84112, USA Fax: 801-581-4665; e-mail: , , , , , US.

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http://dx.doi.org/10.1007/s004420050311DOI Listing
October 1997

Unusually low carbon isotope ratios in plants from hanging gardens in southern Utah.

Oecologia 1997 Aug;111(4):481-489

Stable Isotope Ratio Facility for Environmental Research, Department of Biology, University of Utah, Salt Lake City, UT 84112, USA, , , , , , US.

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http://link.springer.com/10.1007/s004420050261
Publisher Site
http://dx.doi.org/10.1007/s004420050261DOI Listing
August 1997