Ontology highlight
ABSTRACT:
SUBMITTER: Levin NE
PROVIDER: S-EPMC1544065 | biostudies-literature | 2006 Jul
REPOSITORIES: biostudies-literature
Levin Naomi E NE Cerling Thure E TE Passey Benjamin H BH Harris John M JM Ehleringer James R JR
Proceedings of the National Academy of Sciences of the United States of America 20060713 30
We use the oxygen isotopic composition of tooth enamel from multiple mammalian taxa across eastern Africa to present a proxy for aridity. Here we report tooth enamel delta(18)O values of 14 species from 18 locations and classify them according to their isotopic sensitivity to environmental aridity. The species are placed into two groups, evaporation sensitive (ES) and evaporation insensitive (EI). Tooth enamel delta(18)O values of ES animals increase with aridity, whereas the tooth enamel delta( ...[more]