Amino acid δ 15 N underestimation of cetacean trophic positions highlights limited understanding of isotopic fractionation in higher marine consumers

Mercury and stable isotope cycles in baleen plates are consistent with year-round feeding in two bowhead whale (Balaena mysticetus) populations

(2018) Corinne Pomerleau et al.   POLAR BIOLOGY

Amino acid-specific δ15 N trophic enrichment factors in fish fed with formulated diets varying in protein quantity and quality

(2018) M. Teresa Nuche-Pascual et al.   Ecology and Evolution

Coupled changes between the H-Print biomarker and δ15 N indicates a variable sea ice carbon contribution to the diet of Cumberland Sound beluga whales

(2017) T. A. Brown et al.   LIMNOLOGY AND OCEANOGRAPHY

Using stable isotopes to investigate foraging variation and habitat use of sperm whales from northern Peru

(2017) JR Zupcic-Moore et al.   MARINE ECOLOGY PROGRESS SERIES

Reconstructing variability in West Greenland ocean biogeochemistry and bowhead whale (Balaena mysticetus) food web structure using amino acid isotope ratios

(2017) Corinne Pomerleau et al.   POLAR BIOLOGY

The relative influence of derivatization and normalization procedures on the compound-specific stable isotope analysis of nitrogen in amino acids

(2017) Christopher T. Yarnes et al.   RAPID COMMUNICATIONS IN MASS SPECTROMETRY

The dietary protein paradox and threonine15N-depletion: Pyridoxal-5'-phosphate enzyme activity as a mechanism for the δ15N trophic level effect

(2017) Benjamin T. Fuller et al.   RAPID COMMUNICATIONS IN MASS SPECTROMETRY

Using stable isotopes to investigate foraging variation and habitat use of sperm whales from northern Peru

(2017) JR Zupcic-Moore et al.   MARINE ECOLOGY PROGRESS SERIES

Temporal variation in pelagic food chain length in response to environmental change

(2017) Rocio I. Ruiz-Cooley et al.   Science Advances

Trophic position and dietary breadth of bats revealed by nitrogen isotopic composition of amino acids

(2017) Caitlin J. Campbell et al.   Scientific Reports

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

(2016) Kelton W. McMahon et al.   Ecosphere

Nitrogen isotopic baselines and implications for estimating foraging habitat and trophic position of yellowfin tuna in the Indian and Pacific Oceans

(2015) Anne Lorrain et al.   DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY

Trophic discrimination of nitrogen stable isotopes in amino acids varies with diet quality in a marine fish

(2015) Kelton W. McMahon et al.   LIMNOLOGY AND OCEANOGRAPHY

Trophic position estimates of marine teleosts using amino acid compound specific isotopic analysis

(2015) Christina J. Bradley et al.   LIMNOLOGY AND OCEANOGRAPHY-METHODS

Seasonal foraging behaviour of Eastern Canada-West Greenland bowhead whales: an assessment of isotopic cycles along baleen

(2015) CJD Matthews et al.   MARINE ECOLOGY PROGRESS SERIES

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

(2015) Jens M. Nielsen et al.   OECOLOGIA

Baleen whales host a unique gut microbiome with similarities to both carnivores and herbivores

(2015) Jon G. Sanders et al.   Nature Communications

Diet quality influences isotopic discrimination among amino acids in an aquatic vertebrate

(2015) Yoshito Chikaraishi et al.   Ecology and Evolution

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

Seasonal foraging behaviour of Eastern Canada-West Greenland bowhead whales: an assessment of isotopic cycles along baleen

(2015) CJD Matthews et al.   MARINE ECOLOGY PROGRESS SERIES

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

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

Carbon and Nitrogen Isotopes from Top Predator Amino Acids Reveal Rapidly Shifting Ocean Biochemistry in the Outer California Current

(2014) Rocio I. Ruiz-Cooley et al.   PLoS One

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

(2014) Yoshito Chikaraishi et al.   Ecology and Evolution

Rescaling the trophic structure of marine food webs

(2013) Nigel E. Hussey et al.   ECOLOGY LETTERS

Isotope turnover rates and diet-tissue discrimination in skin of ex situ bottlenose dolphins (Tursiops truncatus)

(2013) N. E. Browning et al.   JOURNAL OF EXPERIMENTAL BIOLOGY

Spatial segregation and similar trophic-level diet among eastern Canadian Arctic/north-west Atlantic killer whales inferred from bulk and compound specific isotopic analysis

(2013) Cory J.D. Matthews et al.   JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM

A review of ecogeochemistry approaches to estimating movements of marine animals

(2013) Kelton W. McMahon et al.   LIMNOLOGY AND OCEANOGRAPHY

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

Range Expansion of the Jumbo Squid in the NE Pacific: δ15N Decrypts Multiple Origins, Migration and Habitat Use

(2013) Rocio I. Ruiz-Cooley et al.   PLoS One

Trophic Hierarchies Illuminated via Amino Acid Isotopic Analysis

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

Compound-specific δ13C and δ15N analysis of amino acids: a rapid, chloroformate-based method for ecological studies

(2013) Robert G. Walsh et al.   RAPID COMMUNICATIONS IN MASS SPECTROMETRY

Changes in compound specific δ15N amino acid signatures and d/l ratios in marine dissolved organic matter induced by heterotrophic bacterial reworking

(2012) M.Ll. Calleja et al.   MARINE CHEMISTRY

Trophic ecology of a green turtle breeding population

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

Methods of estimating marine mammal diets: A review of validation experiments and sources of bias and uncertainty

(2012) W. D. Bowen et al.   MARINE MAMMAL SCIENCE

Global Trophic Position Comparison of Two Dominant Mesopelagic Fish Families (Myctophidae, Stomiidae) Using Amino Acid Nitrogen Isotopic Analyses

(2012) C. Anela Choy et al.   PLoS One

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

Quantification of zooplankton trophic position in the North Pacific Subtropical Gyre using stable nitrogen isotopes

(2011) Cecelia C. S. Hannides et al.   LIMNOLOGY AND OCEANOGRAPHY

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

Contrasting C and N isotope ratios from sperm whale skin and squid between the Gulf of Mexico and Gulf of California: effect of habitat

(2011) R. I. Ruiz-Cooley et al.   MARINE BIOLOGY

Nursery habitat use and foraging ecology of the brown stingray Dasyatis lata determined from stomach contents, bulk and amino acid stable isotopes

(2011) JJ Dale et al.   MARINE ECOLOGY PROGRESS SERIES

Nutrient regime shift in the western North Atlantic indicated by compound-specific  15N of deep-sea gorgonian corals

(2011) O. A. Sherwood et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Stable isotopes and trace elements as indicators of diet and habitat use in cetaceans: predicting errors related to preservation, lipid extraction, and lipid normalization

(2010) V Lesage et al.   MARINE ECOLOGY PROGRESS SERIES

Using stable isotope biogeochemistry to study marine mammal ecology

(2010) Seth D. Newsome et al.   MARINE MAMMAL SCIENCE

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

Stable isotopes differentiate bottlenose dolphins off west-central Florida

(2009) Nélio B. Barros et al.   MARINE MAMMAL SCIENCE

Isotopic ecology ten years after a call for more laboratory experiments

(2008) Carlos Martínez del Rio et al.   BIOLOGICAL REVIEWS

Retrospective characterization of ontogenetic shifts in killer whale diets via δ13C and δ15N analysis of teeth

(2008) SD Newsome et al.   MARINE ECOLOGY PROGRESS SERIES