Buscar
Mostrando ítems 31-40 de 2238
Genetic analysis of water use efficiency in rice (Oryza sativa L.) at the leaf level
(Springer Nature, 2013)
Adsorption of polyethylene microbeads and physiological effects on hydroponic maize
(Elsevier B.V., 2020)
Carbon and Hydrogen Isotopes as Tracers of Methane Dynamic in Wetlands
(Scientific Research Publishing, 2015-07)
This work presents a review of the main processes leading to the production and sinking of methane in wetlands and how they affect the stable isotope composition of carbon and hydrogen. Isotope fractionation factors ...
Body mass predicts isotope enrichment in herbivorous mammals
(Royal Society Publishing, 2018)
Carbon isotopic signatures recorded in vertebrate tissues derive from ingested food and thus reflect ecologies and ecosystems. For almost two decades, most carbon isotope-based ecological interpretations of extant and ...
The isotopic composition and insect content of diet predict tissue isotopic values in a South American passerine assemblage
(Springer, 2013)
We analyzed the carbon and nitrogen isotopic
values of the muscle, liver, and crop contents (‘‘diet’’) of
132 individuals of 16 species of Chilean birds. The nitrogen
content of diet was tightly correlated with the ...
Carbon Stocks and Isotopic Composition of the Organic Matter in Soils Covered by Native Vegetation and Pasture in Sorocaba, SP, Brazil
(UNIV TEHRAN, 2009)
Land cover change constitutes one of main way of alteration of soil organic matter in both quantitative and qualitative terms. The goal of this study was to compare the carbon stock and the isotopic signature of the organic ...
Stable carbon (delta(13)C) and nitrogen (delta(15)N) isotopes as natural indicators of live and dry food in Piaractus mesopotamicus (Holmberg, 1887) larval tissue
(Wiley-Blackwell, 2008-03-07)
This study proposed the use of the stable isotope technique to track the type of food utilized by pacu Piaractus mesopotamicus larvae during their development, and to identify the moment when the larvae start using nutrients ...
Stable carbon (delta(13)C) and nitrogen (delta(15)N) isotopes as natural indicators of live and dry food in Piaractus mesopotamicus (Holmberg, 1887) larval tissue
(Wiley-Blackwell, 2008-03-07)
This study proposed the use of the stable isotope technique to track the type of food utilized by pacu Piaractus mesopotamicus larvae during their development, and to identify the moment when the larvae start using nutrients ...
Modelling and determination of metabolic pools by stable carbon isotopes in the avian duodenal mucosa and albumen
(Journal of Animal Physiology and Animal Nutrition © 2015 Blackwell Verlag GmbH., 2015-05-09)
Stable isotope analyses have helped in assessing dietary switches if the diet undergoes metabolic alteration (isotopic exchange). However, when considering the effects over time of switching from one diet to another, one ...
Carbon isotopic signature and organic matter composition of cenomanian high-latitude paleosols of Southern Patagonia
(Multidisciplinary Digital Publishing Institute, 2021-09)
The Cenomanian Mata Amarilla Formation (MAF) in southern Patagonia (⁓55° S paleolatitude, Austral-Magallanes Basin, Argentina) is composed mainly of stacked fluvial deposits with intercalated paleosols, which document ...