Journal ArticleDOI
Herbivore tooth oxygen isotope compositions: Effects of diet and physiology
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TLDR
The applicability of laser probe analysis of tooth enamel for δ18O has been verified, and the method has been applied to different modern herbivores in East Africa as discussed by the authors.About:
This article is published in Geochimica et Cosmochimica Acta.The article was published on 1996-10-01. It has received 385 citations till now.read more
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Taphonomic and Ecologic Information Form Bone Weathering
TL;DR: In this article, a categorization of weathering characteristics into six stages, recognizable on descriptive criteria, provides a basis for investigation of the weathering rates and processes of recent mammals in the Amboseli Basin.
Journal ArticleDOI
Predicting animal δ18O: Accounting for diet and physiological adaptation
TL;DR: In this paper, a generalized model was developed for the prediction of animal body water and phosphate δ18O to incorporate these factors quantitatively, and a moderate dependence of animal ǫ on humidity is predicted for drought-tolerant animals, and the correlation between humidity and North American deer bone composition as corrected for local meteoric water is predicted within the scatter of the data.
Journal ArticleDOI
Isotopic reconstruction of past continental environments
TL;DR: In this paper, carbon isotope variations in fossil vertebrates and soils record changes in the structure of vegetation and the isotope composition and concentration of atmospheric CO2, as well as fractionations associated with animal physiology, soil geochemistry, and diagenesis.
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Stable isotope compositions of biological apatite
Matthew J. Kohn,Thure E. Cerling +1 more
TL;DR: The stable isotope compositions of biogenic materials record a combination of environmental parameters and biological processes as mentioned in this paper, and the environment provides a range of isotopic compositional inputs, and an animal processes those signals through dietary preference, physiology, behavior, etc.
Journal ArticleDOI
Altered states: effects of diagenesis on fossil tooth chemistry
TL;DR: A study of modern and fossil teeth from northern and central Kenya, using the ion micro- probe, electron microprobe, and transmission electron microscope, confirms that fossil tooth chemistry is controlled not only by the diagenetic precipitation of secondary minerals but also by the chemical alteration of the biogenic apatite as discussed by the authors.
References
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Journal ArticleDOI
Carbon Isotope Discrimination and Photosynthesis
TL;DR: In this article, the physical and enzymatic bases of carbone isotope discrimination during photosynthesis were discussed, noting how knowledge of discrimination can be used to provide additional insight into photosynthetic metabolism and the environmental influences on that process.
Journal Article
Taphonomic and Ecologic Information Form Bone Weathering
TL;DR: In this article, a categorization of weathering characteristics into six stages, recognizable on descriptive criteria, provides a basis for investigation of the weathering rates and processes of recent mammals in the Amboseli Basin.
Journal ArticleDOI
Carbon Isotopes in PhotosynthesisFractionation techniques may reveal new aspects of carbon dynamics in plants
TL;DR: The fractionation of carbon isotopes that occurs during photosynthesis is one of the most useful techniques for investigating the efficiency of CO2 uptake and indicates that different strategies are needed for improving wateruse efficiency in different kinds of plants.
Journal ArticleDOI
Taphonomic and ecologic information from bone weathering
TL;DR: In this paper, a categorization of weathering characteristics into six stages, recognizable on descriptive criteria, provides a basis for investigation of the weathering rates and processes of recent mammals in the Amboseli Basin.
Journal ArticleDOI
Nitrogen and carbon isotopic composition of bone collagen from marine and terrestrial animals
TL;DR: Results indicate that bone collagen δ15N values will be useful in determining relative dependence on marine and terrestrial food sources and in investigating trophic level relationships among different animal species within an ecosystem.