Titlebook: Stable Isotopes in Ecological Research; P. W. Rundel,J. R. Ehleringer,K. A. Nagy Conference proceedings 1989 Springer-Verlag New York Inc.

Omniscient

Carbon Isotope Fractionation and Plant Water-Use Efficiency increase in the rate of CO. assimilation, ., but also allows a greater rate of transpirational water loss, .. Such an action by a plant is a gamble, because while it increases the likelihood of growth and reproductive success, it also increases the probability of desiccation and death (Cowan 1986).

mucous-membrane

博识

δ13C Measurements as Indicators of Carbon Flow in Marine and Freshwater Ecosystemse natural pathways and flows “downstream” from these key reactions. When chemical and metabolic processes scramble the information content of molecules, isotopic compositions are often preserved. This realization has prompted increasing use of stable isotope analyses as a tool for understanding complex ecological processes.

Scintigraphy

978-1-4612-8127-6Springer-Verlag New York Inc. 1989

帽子

Stable Isotopes in Ecological Research978-1-4612-3498-2Series ISSN 0070-8356 Series E-ISSN 2196-971X

致敬

archaeology

高贵领导

Doubly-Labeled Water Studies of Vertebrate Physiological Ecologyve been used are tritium, which is radioactive and is denoted as .H, H-3, or T, and deuterium, which is stable and is denoted as .H, H-2, or D. Oxygen-18 (.O or O-18) is the oxygen isotope of choice. Oxygen-17 could be used but adequate measurement technology for its use in DLW studies on animals has not yet been developed.

Magnitude

Ecological Studieshttp://image.papertrans.cn/s/image/875459.jpg

吸气