The Mammoth Steppe was the dominant terrestrial biome of the Northern Hemisphere
during the late Pleistocene. It encompassed a nonanalog community of animals living in a …

Abstract Changes in the nutritional status of free-ranging animals have a strong influence on
individual fitness, yet it remains challenging to monitor longitudinally. Nitrogen (δ 15 N) and …

More than 300 cave bear bones from all over Europe have carbon and nitrogen isotopic
composition that match overwhelmingly a diet based on plants, except for samples from two …

Stable isotopes are important ecological tools, because the carbon and nitrogen isotopic
composition of consumer tissue reflects the diet. Measurements of isotopes of individual …

Rationale Ecologists increasingly determine the δ15N values of amino acids (AA) in animal
tissue;“source” AA typically exhibit minor variation between diet and consumer, while …

Objectives This study presents isotopic information for incremental dentine collagen and
bone bulk collagen from individuals from the Canary Islands (Tenerife and Gran Canaria) to …

With only periodic and incomplete studies of its diet over time, all with differing methods and
conclusions, the degree of omnivory in the bank vole (Clethrionomys glareolus) is not fully …

Simple Summary Stable isotope analysis is a technique increasingly used for studying many
aspects of wildlife behaviour, such as diet, migrations, and trophic relationships. However …

Discerning assimilated diets of wild animals using stable isotopes is well established where
potential dietary items in food webs are isotopically distinct. With the advent of mixing …

This study characterized the effect of calorie restriction (CR) on elemental content and stable
isotope ratio measurements of bone" collagen" and hair keratin. Adult mice on graded CR …