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78 results on '"James R. Ehleringer"'

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1. Long‐term nitrogen isotope dynamics in Encelia farinosa reflect plant demographics and climate

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

4. A predictive spatial model for roasted coffee using oxygen isotopes of α‐cellulose

5. Strontium isotope ratios (87Sr/86Sr) of human fingernail clippings reveal multiple location signals

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

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

8. Reconstruction of travel history using coupled δ 18 O and 87 Sr/86 Sr measurements of hair

9. Improved accuracy and precision in δ 15 NAIR measurements of explosives, urea, and inorganic nitrates by elemental analyzer/isotope ratio mass spectrometry using thermal decomposition

10. Isotopic composition of sheep wool records seasonality of climate and diet

11. Predicting leaf waxn-alkane2H/1H ratios: controlled water source and humidity experiments with hydroponically grown trees confirm predictions of Craig-Gordon model

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

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

14. Climate and lawn management interact to control C4plant distribution in residential lawns across seven U.S. cities

15. Forensic Applications of Light-Element Stable Isotope Ratios ofRicinus communisSeeds and Ricin Preparations

16. Hydrogen and Oxygen Isotope Ratios in Body Water and Hair: Modeling Isotope Dynamics in Nonhuman Primates

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

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

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

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

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

22. TRANSPIRATION AND HYDRAULIC STRATEGIES IN A PIÑON–JUNIPER WOODLAND

23. Combining meteorology, eddy fluxes, isotope measurements, and modeling to understand environmental controls of carbon isotope discrimination at the canopy scale

24. ECOHYDROLOGY IN A COLORADO RIVER RIPARIAN FOREST: IMPLICATIONS FOR THE DECLINE OF POPULUS FREMONTII

25. OXYGEN ISOTOPE RATIOS OF WATERS AND RESPIRED CO2IN AMAZONIAN FOREST AND PASTURE ECOSYSTEMS

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

27. Associations between carbon isotope ratios of ecosystem respiration, water availability and canopy conductance

28. Short-term diet changes revealed using stable carbon isotopes in horse tail-hair

29. Temporal scaling of physiological responses from gas exchange to tree rings: a gender-specific study of Acer negundo (Boxelder) growing under different conditions

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

31. Nitrogen isotopes in mammalian herbivores: hair ?15N values from a controlled feeding study

32. INTERSPECIFIC COMPETITION AND RESOURCE PULSE UTILIZATION IN A COLD DESERT COMMUNITY

33. Stable Isotopes and Carbon Cycle Processes in Forests and Grasslands

34. Predicting daytime carbon isotope ratios of atmospheric CO2 within forest canopies

35. Water use trade-offs and optimal adaptations to pulse-driven arid ecosystems

36. INTRA- AND INTERSPECIFIC VARIATION FOR SUMMER PRECIPITATION USE IN PINYON–JUNIPER WOODLANDS

37. WATER AND NITROGEN UPTAKE PATTERNS FOLLOWING MOISTURE PULSES IN A COLD DESERT COMMUNITY

38. CARBON ISOTOPE RATIOS IN BELOWGROUND CARBON CYCLE PROCESSES

39. Elevated CO 2 and temperature impacts on different components of soil CO 2 efflux in Douglas‐fir terracosms

40. Intraspecific variation of leaf pubescence and drought response in Encelia farinosa associated with contrasting desert environments

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

42. Nitrogen isotope composition of tomato (Lycopersicon esculentum Mill. cv. T-5) grown under ammonium or nitrate nutrition

43. Carbon dioxide concentrations within forest canopies-variation with time, stand structure, and vegetation type

44. Carbon isotope composition of C4 grasses is influenced by light and water supply

46. Potential for selection on plants for water‐use efficiency as estimated by carbon isotope discrimination

47. Photosynthetic gas exchange and the stable isotope composition of leaf water: comparison of a xylem-tapping mistletoe and its host

49. Gender-Specific Physiology, Carbon Isotope Discrimination, and Habitat Distribution in Boxelder, Acer Negundo

50. Water uptake by plants: perspectives from stable isotope composition

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