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

KW McMahon, MD McCarthy - Ecosphere, 2016 - Wiley Online Library
Compound‐specific stable isotope analysis (CSIA) of individual amino acids (AA s) has
become a powerful analytical tool in trophic ecology. Heavily fractionating “trophic” AA s (eg …

Advances in the application of amino acid nitrogen isotopic analysis in ecological and biogeochemical studies

N Ohkouchi, Y Chikaraishi, HG Close, B Fry… - Organic …, 2017 - Elsevier
Compound-specific isotopic analysis of amino acids (CSIA-AA) has emerged in the last
decade as a powerful approach for tracing the origins and fate of nitrogen in ecological and …

Studying animal niches using bulk stable isotope ratios: an updated synthesis

ON Shipley, P Matich - Oecologia, 2020 - Springer
The development of the isotopic niche, an n-dimensional hypervolume (with n being the
number of isotopes) occupied by a population in delta space, has revolutionized the study of …

Reading the biomineralized book of life: expanding otolith biogeochemical research and applications for fisheries and ecosystem-based management

P Reis-Santos, BM Gillanders, AM Sturrock… - Reviews in Fish Biology …, 2023 - Springer
Chemical analysis of calcified structures continues to flourish, as analytical and
technological advances enable researchers to tap into trace elements and isotopes taken up …

Using ocean models to predict spatial and temporal variation in marine carbon isotopes

S Magozzi, A Yool, HB Vander Zanden… - …, 2017 - Wiley Online Library
Natural‐abundance stable isotope ratios provide a wealth of ecological information relating
to food web structure, trophic level, and location. The correct interpretation of stable isotope …

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

JM Nielsen, BN Popp, M Winder - Oecologia, 2015 - Springer
Estimating trophic structures is a common approach used to retrieve information regarding
energy pathways, predation, and competition in complex ecosystems. The application of …

A global perspective on the trophic geography of sharks

CS Bird, A Veríssimo, S Magozzi, KG Abrantes… - Nature ecology & …, 2018 - nature.com
Sharks are a diverse group of mobile predators that forage across varied spatial scales and
have the potential to influence food web dynamics. The ecological consequences of recent …

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

KW McMahon, SR Thorrold, TS Elsdon… - Limnology and …, 2015 - Wiley Online Library
Abstract Analysis of individual amino acid (AA) δ15N values is increasingly common in
studies of food web architecture, movement ecology, and biogeochemical cycling. However …

Trophic interactions of fish communities at midwater depths enhance long-term carbon storage and benthic production on continental slopes

CN Trueman, G Johnston, B O'hea… - Proceedings of the …, 2014 - royalsocietypublishing.org
Biological transfer of nutrients and materials between linked ecosystems influences global
carbon budgets and ecosystem structure and function. Identifying the organisms or …

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

KW McMahon, MJ Polito, S Abel… - Ecology and …, 2015 - Wiley Online Library
Compound‐specific stable isotope analysis (CSIA) of amino acids (AA) has rapidly become
a powerful tool in studies of food web architecture, resource use, and biogeochemical …