Isotopic values, body mass, age class, and sex of capybara (Hydrochoerus hydrochaeris) populations in Brazil

This dataset is part of the article titled 'Plasticity in resource use explains the persistence of the largest living rodent in anthropized environments' available at https://doi.org/10.1111/jzo.13057 and includes uncorrected and correct stable carbon and nitrogen isotope values, individuals body mass, age class, and sex from capybara (Hydrochoerys hydrochaeris) populations in Brazil