Paleoenvironmental implications of two relative indicator rodent taxa during the Pleistocene to Holocene transition in south-eastern Washington state, USA

摘要: Local pollen data, diminution of body size three ungulate species, and decreased mammalian richness evenness all indicate grass in abundance during the Pleistocene-Holocene transition (PHT) eastern Washington state, USA. This paleoenvironmental history suggests that remains Microtus sp. should decrease as Peromyscus maniculatus increase PHT. These two taxa have well-known ecologies relative to one another. PHT sediments at Marmes archeological site south-eastern state are sorted into chronologically sequent, isotaphonomic analytical units. Relative abundances P. shift across units predicted manner whether raw or rarified considered. results suggest recovered from other sites may be used indicators paleohabitats. Their Homestead Cave, Utah, Late Pleistocene through Early Holocene. Copyright # 2014 John Wiley & Sons, Ltd.