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Stable Isotopes and Diet

Sperm whale diet variation by sex, location, year, social group and clan : Evidence from stable isotopes

Sperm whale diet variation by sex, location, year, social group and clan : Evidence from stable isotopes

... from different clans seem to differ in their movement patterns and in the way they use their habitat. More- over, differences in feeding success between clans have been observed (Whitehead & Rendell 2004), but it is ...

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Stable isotopes of captive cetaceans (killer whales and bottlenose dolphins)

Stable isotopes of captive cetaceans (killer whales and bottlenose dolphins)

... the diet of these captive cetaceans, in particular because they participated in shows every ...the diet was not appropriate, they did not work and/or they could become aggressive with the ...new diet ...

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Exploring the Movement of People in Postclassic and Historic Period Lamanai Using Stable Isotopes

Exploring the Movement of People in Postclassic and Historic Period Lamanai Using Stable Isotopes

... investigation of diet using collagen carbon- and nitrogen-isotope data, and the exploration of the individuals buried in the VPLF position. All statistics were produced using IBM SPSS Statistics 21. Normality was ...

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A dynamic study of earthworm feeding ecology using stable isotopes

A dynamic study of earthworm feeding ecology using stable isotopes

... their diet because of the short time period for assimilation processes 5 and, therefore, isotopic techniques can be a powerful tool in determining food preferences as they are less time ...

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Hagfish feeding habits along a depth gradient inferred from stable isotopes

Hagfish feeding habits along a depth gradient inferred from stable isotopes

... For both Eptatretus species, the lipid content in muscle was high compared to other values for fishes from the literature (e.g. Hoffman & Sutton 2010) and did not change with depth, but Eptatretus sp. 1 had slightly ...

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Using stable-hydrogen isotopes to reveal immigration in an Arctic-breeding songbird population

Using stable-hydrogen isotopes to reveal immigration in an Arctic-breeding songbird population

... of stable isotopes provides a promis- ing approach for estimating immigration and emigration in a population [17, 18, 20–23], there are several poten- tial limitations to this ...scapes, stable ...

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Seasonal variability in stable isotopes of estuarine consumers under different freshwater flow regimes

Seasonal variability in stable isotopes of estuarine consumers under different freshwater flow regimes

... species residing in the Caloosahatchee estuary through both seasons indicated that the body compo- sition of these animals reflect resources assimilated during both hydrologic regimes. It is important to note that if ...

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Examining the dynamics of the proteome using stable isotopes as metabolic tracers

Examining the dynamics of the proteome using stable isotopes as metabolic tracers

... If we compare these spectra to spectra obtained from day two (Fig. 18), immediately we can see that a peptide appeared at 1902 m/z. Since this peptide contained two valine residues, the peak at 1902 m/z represents ...

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Giant Beaver (Castoroides) Palaeoecology Inferred from Stable Isotopes

Giant Beaver (Castoroides) Palaeoecology Inferred from Stable Isotopes

... Muskrats prefer shallow open water or marshy ecosystems, so frequently overlap with modern Castor canadensis, but as there is enough of a disparity in their diets, they co-exist without facing major competition. Muskrats ...

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The trophic and metabolic pathways of foraminifera in the Arabian Sea: evidence from cellular stable isotopes

The trophic and metabolic pathways of foraminifera in the Arabian Sea: evidence from cellular stable isotopes

... sp. and other komokiaceans. The isotopic composition of Rhizammina sp. was similar at the Pakistan margin and at the Porcupine Abyssal Plain (PAP) in the NE Atlantic (Iken et al., 2001); δ 13 C data were consistent with ...

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Stable isotopes and dynamic diets : the Mesolithic-Neolithic dietary transition in terrestrial Central Europe

Stable isotopes and dynamic diets : the Mesolithic-Neolithic dietary transition in terrestrial Central Europe

... (consumer stable isotope ratios, diet-consumer off-set, and stable isotopic ratio averages from food sources) to produce an estimate of the mean percentage each food type contributed to the ...

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Understanding trophic interactions in host parasite associations using stable isotopes of carbon and nitrogen

Understanding trophic interactions in host parasite associations using stable isotopes of carbon and nitrogen

... The stable isotope signatures of the fish-nematode sys- tem in our study showed a consumer-diet ...nitrogen isotopes in relation to host ...the stable isotope composition of the nematodes and ...

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Trans-generational marking of clownfish larvae via maternal transmission of stable isotopes

Trans-generational marking of clownfish larvae via maternal transmission of stable isotopes

... Larval tagging techniques rely on the approach of marking calcified structures such as otoliths that are formed early in larval development. Otoliths are marked with elements or compounds not present or rare in the ...

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Characteristics of Stable Isotopes in an Inland Lake and Their Implications for Water Management in Northwestern China

Characteristics of Stable Isotopes in an Inland Lake and Their Implications for Water Management in Northwestern China

... For the hydrograph separation analysis based on stable isotopes, the multi-component model was widely used to compute the contributions of different components of the water system [10]. Since the 1980s, ...

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Estimating flow and transport parameters in the unsaturated zone with pore water stable isotopes

Estimating flow and transport parameters in the unsaturated zone with pore water stable isotopes

... water stable isotope con- centrations allow tracking water particles under variable nat- ural boundary conditions over months to ...water stable isotope profiles have so far neither been rigorously tested ...

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Stable carbon isotopes in exhaled breath as tracers for dietary information in birds and mammals

Stable carbon isotopes in exhaled breath as tracers for dietary information in birds and mammals

... 2005). Diet- switching experiments during which the isotopic composition of the diet is drastically changed at the onset of the experiment – from ...During diet-switch experiments, breath samples are ...

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Stable water isotopes in the MITgcm

Stable water isotopes in the MITgcm

... of stable water isotopes in the Massachusetts Institute of Technology general circulation model ...the stable water isotopes in annual mean seawater are well captured in the model, both at the ...

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Domestic Water Supply Dynamics Using Stable Isotopes δ18O, δD, and d Excess

Domestic Water Supply Dynamics Using Stable Isotopes δ18O, δD, and d Excess

... for stable isotope and anion analysis, and samples were not fil- ...headspace. Stable isotopic water samples were filled to the top to prevent evaporation, and lids were wrapped in parafilm to prevent any ...

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Links between carbon and water cycles in northern ecosystems: Constraints from stable isotopes

Links between carbon and water cycles in northern ecosystems: Constraints from stable isotopes

... basement stable isotope lab and who were always willing to answer questions, including Xiaomei, Julianna Fessenden, Sally Newman, Nami Kitchen, Zhengrong Wang, Julie O’leary, Thom Rahn and Hagit ...

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Stable carbon isotopes of tree rings as a tool to pinpoint the geographic origin of timber

Stable carbon isotopes of tree rings as a tool to pinpoint the geographic origin of timber

... which is dom- inated by factors such as relative humidity, soil water status, summer irradiance, and temperature. In general, using oxygen and hydrogen isotopes to provenance agricultural products is more ...

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