Results 11 to 20 of about 130,756 (301)

Zanadamu: An African hominin isotopic dataset

Data in Brief, 2023
The present article introduces Zanadamu, a comprehensive geo-temporal-referenced dataset that amalgamates all published stable isotope carbon and oxygen measurements on tooth enamel from African hominins, dated between 4.4 and 0.005 Ma.
Victor Iminjili, Ricardo Fernandes
doaj   +1 more source

Population-specific sex and size variation in long-term foraging ecology of belugas and narwhals [PDF]

Royal Society Open Science, 2021
Intraspecific variation in resource use by individuals of different age, sex or size may reflect differing energetic requirements and physiological constraints.
Marie Louis, Mikkel Skovrind, Eva Garde, Mads Peter Heide-Jørgensen, Paul Szpak, Eline D. Lorenzen   +5 more
doaj   +1 more source

Seasonal Cyclicity in Trace Elements and Stable Isotopes of Modern Horse Enamel. [PDF]

PLoS ONE, 2016
The study of stable isotopes in fossil bioapatite has yielded useful results and has shown that bioapatites are able to faithfully record paleo-environmental and paleo-climatic parameters from archeological to geological timescales.
Niels J de Winter, Christophe Snoeck, Philippe Claeys   +2 more
doaj   +1 more source

Carbon stable isotope turnover and fractionation in grass carp Ctenopharyngodon idella tissues

Aquatic Biology, 2013
Carbon stable isotope signatures can effectively trace food sources, elucidate trophic interactions, and presumably reflect food web structure. The present study conducted a diet-switch experiment using freshwater teleost grass carp Ctenopharyngodon ...
B Xia, QF Gao, SL Dong, F Wang
doaj   +1 more source

Life-history traits of the giant squid Architeuthis dux revealed from stable isotope signatures recorded in beaks [PDF]

, 2010
Peer ...
Alejandro B. Rodríguez-Navarro, Bode, Boyle, Cabana, Cherel, Cherel, Cherel, Cherel, Cherel, Chris S. Romanek, Clarke, Deagle, DeNiro, DeNiro, Field, González, Graham J. Pierce, Grist, Guerra, Guerra, Guerra, Hernández-López, Higgins, Hobson, Hobson, Hobson, Hunt, Jackson, McCutchan, Mendes, Miserez, Nixon, Parry, Pedro Álvarez-Lloret, Perales-Raya, Rau, Raya, Rodhouse, Roper, Ruiz-Cooley, Ruiz-Cooley, Schimmelmann, Seibel, Smith, Stowasser, Takai, Vanderklift, Webb, Zuur, Ángel F. González, Ángel Guerra   +50 more
core   +1 more source

Stable isotope values in modern bryozoan carbonate from New Zealand and implications for paleoenvironmental interpretation [PDF]

, 2004
Bryozoan carbonate contains useful geochemical evidence of temperate shelf paleoenvironments. Stable isotope values were determined for 103 modern marine bryozoan skeletons representing 30 species from New Zealand. δ18O values range from -1.4 to 2.8 VPDB,
Anderson T. F., Boardman R. S., Bone Y., Corfield R. M., Forester R. M., Goodwin D. H., James N. P., Nelson W. A., Rao C. P., Smith A. M., Taviani M.   +10 more
core   +2 more sources

Photosynthetic Fractionation of the Stable Isotopes of Oxygen and Carbon [PDF]

Plant Physiology, 1993
Isotope discrimination during photosynthetic exchange of O2 and CO2 was measured using enzyme, thylakoid, and whole cell preparations. Evolved oxygen from isolated spinach thylakoids was isotopically identical (within analytical error) to its source water.
R. D., Guy, M. L., Fogel, J. A., Berry
openaire   +2 more sources

A pilot study of stable isotope fractionation in Bombyx mori rearing

Scientific Reports, 2023
Hydrogen, oxygen, carbon, and nitrogen isotopes derived from three different strains of silkworms at different life stages involved in silkworm rearing, were measured to understand the fractionation characteristics of stable isotopes at different stages ...
Hao Li, Yujie He, Jinzhong Lu, Liling Jia, Yong Liu, Dan Yang, Shuai Shao, Gang Lv, Hailiang Yang, Hailing Zheng, Yang Zhou, Zhiqin Peng   +11 more
doaj   +1 more source

Determining trophic niche width: a novel approach using stable isotope analysis [PDF]

, 2004
1. Although conceptually robust, it has proven difficult to find practical measures of niche width that are simple to obtain, yet provide an adequate descriptor of the ecological position of the population examined. 2.
Adams, C.E., Bearhop, S., Fuller, R.A., Macleod, H., Waldron, S.   +4 more
core   +1 more source

Fractionation of the Stable Isotopes of Inorganic Carbon by Seagrasses [PDF]

Plant Physiology, 1980
The delta(13)C values for seagrasses collected along the Texas Gulf Coast range from -10.9 to -11.4 per thousand. These values are similar to the delta(13)C values of terrestrial C(4) plants, but seagrasses lack bundle sheath cells which are important in determining the delta(13)C values of C(4) plants.
C R, Benedict, W W, Wong, J H, Wong
openaire   +2 more sources