Results 41 to 50 of about 24,017 (211)

Trophic structure in a seabird host-parasite food web: insights from stable isotope analyses [PDF]

open access: yes, 2010
Ecological studies on food webs rarely include parasites, partly due to the complexity and dimensionality of host-parasite interaction networks. Multiple co-occurring parasites can show different feeding strategies and thus lead to complex and cryptic ...
Gómez-Díaz Elena   +3 more
core   +1 more source

Can mussels be used as sentinel organisms for characterization of pollution in urban water systems? [PDF]

open access: yesHydrology and Earth System Sciences, 2016
Urbanization strongly impacts aquatic ecosystems by decreasing water quality and altering water cycles. Today, much effort is put towards the restoration and conservation of urban waterbodies to enhance ecosystem service provision, leading to liveable ...
E. S. Reichwaldt, A. Ghadouani
doaj   +1 more source

Use of three isotopes to calibrate human bone radiocarbon determinations from Kainapirina (SAC), Watom Island, Papua New Guinea [PDF]

open access: yes, 2005
In archaeological dating, the greatest confidence is usually placed upon radiocarbon results of material that can be directly related to a defined archaeological event.
Green, Roger, Petchey, Fiona
core   +1 more source

Natural abundance of stable isotopes of macrophytes of NW Spain [PDF]

open access: yes, 2022
The values of natural abundance of stable isotopes were measured in 22 species of macrophytes (18 macroalgae and 4 vascular plants) collected from the intertidal domain in NW Spain (NE Atlantic).
García-Seoane, Rita   +3 more
core   +1 more source

Stable Isotope Compositions of Wild and Farmed S. Paramoamosion and its Implication for Tracebility

open access: yesJournal of Isotopes, 2014
To evaluate the possibility of using stable isotopes for discriminating wild and farmed mangrove crabs, Stable carbon and nitrogen isotope ratios of Scylla paramamosion tissues were analyzed. The carbon and nitrogen isotope ratios of wild S. paramamosion
GUO Jie-min1,2;LIN Guang-hui1,3
doaj   +1 more source

Reconstructing Seasonal and Baseline Nitrogen Isotope Ratios in Riverine Particulate Matter Using Freshwater Mussel Shells

open access: yesGeochemistry, Geophysics, Geosystems, 2021
We present a timeline of the carbon, nitrogen, and oxygen stable isotope compositions of 10 unionid mussel shells across three species–Threeridge (Amblema plicata), Ebonyshell (Reginaia ebenus), and Pimpleback (Cyclonaias pustulosa)—collected live in ...
Stephanie Kukolich, David Dettman
doaj   +1 more source

Applications of stable water and carbon isotopes in watershed research: Weathering, carbon cycling, and water balances [PDF]

open access: yes, 2011
Research on rivers has traditionally involved concentration and flux measurements to better understand weathering, transport and cycling of materials from land to ocean.
Petelet-Giraud, Emmanuelle   +23 more
core   +1 more source

Using 13C-, 15N-, and 18O stable isotope analysis of human bone tissue to identify transhumance, high altitude habitation and reconstruct palaeodiet for the early medieval Alpine population at Volders, Austria [PDF]

open access: yes, 2007
The analysis of stable isotopes of oxygen from structural carbonate in archaeological human bone samples originating from an early medieval cemetery in the Alpine community of Volders, Austria were used to determine the utilization of higher altitudes ...
McGlynn, George
core  

Monthly data of stable carbon and nitrogen isotopes in seston, sedimented particles, and plankton size-fractions for a shelf station off A Coruña (NW Spain): 2010-2011 [PDF]

open access: yes, 2020
Water-column integrated measurements of natural abundance of stable carbon and nitrogen isotopes in seston, sediment trap particles and in four plankton size-fractions (200-5000µm) in montlhy samples collected in a shelf station off A Coruña (NW Spain ...
Mompeán, Carmen   +2 more
core   +1 more source

Stable isotope geochemistry of nitrogen in marine particulates [PDF]

open access: yes, 1983
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Sciences, 1983. ; Microfiche copy available in Archives and Science ; Vita. ; Bibliography: p. 268-279. ; by Susan M. Libes. ; Ph.D.
openaire   +4 more sources

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