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Stable isotope values in pup vibrissae reveal geographic variation in diets of gestating Steller sea lions <i>Eumetopias jubatus</i>

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Scherer, R.D., A.C. Doll, L.D. Rea, A.M. Christ, C.A. Stricker, B. Witteveen, T.C. Kline, C.M. Kurle, and M.B. Wunder. 2015. Isotope values in pup whiskers reveal geographic variation in diets of gestating Steller sea lions (Eumetopias jubatus). Marine Ecology Progress Series 527: 261-274. DOI: 10.3354/meps11255

Summary

Multiple factors, including limitation in food resources, have been proposed as possible causes for the lack of recovery of the endangered western segment of the Steller sea lion population in the United States. Because maternal body condition has important consequences on fetal development and neonatal survival, the diets of pregnant females may be particularly important in regulating population sizes. We used the stable carbon and nitrogen isotope values of vibrissae from Steller sea lion pups as an indirect indicator of maternal diets during gestation. Combining these data with isotope data from potential prey species in a Bayesian mixing model, we generated proportional estimates of dietary consumption for key prey. Our analysis [...]

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Harvested on Sun May 31 04:40:42 MDT 2015 from MODS XML Service

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Type Scheme Key
local-index unknown 70148089
local-pk unknown 70148089
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.3354/meps11255
series unknown Marine Ecology Progress Series

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citationTypeArticle
journalMarine Ecology Progress Series
languageEnglish
parts
typevolume
value527

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