‘Trophic’ and ‘source’ amino acids in trophic estimation: a likely metabolic explanation

Comment on “Ecological niche of Neanderthals from Spy Cave revealed by nitrogen isotopes of individual amino acids in collagen” [J. Hum. Evol. 93 (2016) 82–90]

(2018) Tamsin C. O'Connell et al.   JOURNAL OF HUMAN EVOLUTION

Natural 15N Abundance in Key Amino Acids from Lamb Muscle: Exploring a New Horizon in Diet Authentication and Assessment of Feed Efficiency in Ruminants

(2016) Gonzalo Cantalapiedra-Hijar et al.   JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY

Nitrogen isotopic discrimination in dietary amino acids: The threonine anomaly

(2016) Carmichael J. A. Wallace et al.   RAPID COMMUNICATIONS IN MASS SPECTROMETRY

Embracing variability in amino acid δ15N fractionation: mechanisms, implications, and applications for trophic ecology

(2016) Kelton W. McMahon et al.   Ecosphere

Predicting rates of isotopic turnover across the animal kingdom: a synthesis of existing data

(2015) Stephen M. Thomas et al.   JOURNAL OF ANIMAL ECOLOGY

Meta-analysis of amino acid stable nitrogen isotope ratios for estimating trophic position in marine organisms

(2015) Jens M. Nielsen et al.   OECOLOGIA

Individual-level niche specialization within populations: emerging areas of study

(2015) Craig A. Layman et al.   OECOLOGIA

Microbes are trophic analogs of animals

(2015) Shawn A. Steffan et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Solving the woolly mammoth conundrum: amino acid 15N-enrichment suggests a distinct forage or habitat

(2015) Rachel Schwartz-Narbonne et al.   Scientific Reports

Carbon and nitrogen isotope fractionation of amino acids in an avian marine predator, the gentoo penguin (Pygoscelis papua)

(2015) Kelton W. McMahon et al.   Ecology and Evolution

Effects of fasting and nutritional restriction on the isotopic ratios of nitrogen and carbon: a meta-analysis

(2015) Eric Hertz et al.   Ecology and Evolution

Stable Isotope Turnover and Half-Life in Animal Tissues: A Literature Synthesis

(2015) M. Jake Vander Zanden et al.   PLoS One

Transamination Governs Nitrogen Isotope Heterogeneity of Amino Acids in Rats

(2014) Alexander Braun et al.   JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY

Amino acid 15N trophic enrichment factors of four large carnivorous fishes

(2014) Danielle K. Hoen et al.   JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY

High-resolution food webs based on nitrogen isotopic composition of amino acids

(2014) Yoshito Chikaraishi et al.   Ecology and Evolution

Natural Isotopic Signatures of Variations in Body Nitrogen Fluxes: A Compartmental Model Analysis

(2014) Nathalie Poupin et al.   PLoS Computational Biology

Evaluation of carnivory in inland Jomon hunter–gatherers based on nitrogen isotopic compositions of individual amino acids in bone collagen

(2013) Yuichi I. Naito et al.   JOURNAL OF ARCHAEOLOGICAL SCIENCE

Nitrogen isotope fractionation in amino acids from harbor seals: implications for compound-specific trophic position calculations

(2013) LR Germain et al.   MARINE ECOLOGY PROGRESS SERIES

Trophic Hierarchies Illuminated via Amino Acid Isotopic Analysis

(2013) Shawn A. Steffan et al.   PLoS One

Trophic ecology of a green turtle breeding population

(2012) HB Vander Zanden et al.   MARINE ECOLOGY PROGRESS SERIES

Stable Isotope Tracking of Endangered Sea Turtles: Validation with Satellite Telemetry and δ15N Analysis of Amino Acids

(2012) Jeffrey A. Seminoff et al.   PLoS One

On the Use of Stable Isotopes in Trophic Ecology

(2011) William J. Boecklen et al.   Annual Review of Ecology Evolution and Systematics

Applying stable isotopes to examine food-web structure: an overview of analytical tools

(2011) Craig A. Layman et al.   BIOLOGICAL REVIEWS

15N/14N ratios of amino acids as a tool for studying terrestrial food webs: a case study of terrestrial insects (bees, wasps, and hornets)

(2011) Yoshito Chikaraishi et al.   ECOLOGICAL RESEARCH

The ecological causes of individual specialisation

(2011) Márcio S. Araújo et al.   ECOLOGY LETTERS

Determination of aquatic food-web structure based on compound-specific nitrogen isotopic composition of amino acids

(2011) Yoshito Chikaraishi et al.   LIMNOLOGY AND OCEANOGRAPHY-METHODS

A Hypothesis-Testing Framework for Studies Investigating Ontogenetic Niche Shifts Using Stable Isotope Ratios

(2011) Caroline M. Hammerschlag-Peyer et al.   PLoS One

Prolyl 4-hydroxylase

(2010) Kelly L. Gorres et al.   CRITICAL REVIEWS IN BIOCHEMISTRY AND MOLECULAR BIOLOGY

Resolving the bulk δ15N values of ancient human and animal bone collagen via compound-specific nitrogen isotope analysis of constituent amino acids

(2009) Amy K. Styring et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Nitrogen and carbon isotope values of individual amino acids: a tool to study foraging ecology of penguins in the Southern Ocean

(2009) A Lorrain et al.   MARINE ECOLOGY PROGRESS SERIES

The conservation and evolutionary modularity of metabolism

(2009) José M Peregrín-Alvarez et al.   GENOME BIOLOGY

Beyond the reaction progress variable: the meaning and significance of isotopic incorporation data

(2008) Carlos Martínez del Rio et al.   OECOLOGIA