Journal article
Overprinting of taphonomic and paleoecological signals across the forest–prairie environmental gradient, mid-continent of North America
Paleobiology, Vol.44(3), pp.546-559
08/01/2018
DOI: 10.1017/pab.2018.18
Abstract
Taphonomic factors may significantly alter faunal assemblages at varying scales. An exceptional record of late Holocene (<4000 yr old) mammal faunas establishes a firm baseline to investigate the effects of scale on taphonomy. Our sample contains 73 sites within four contiguous states (North Dakota, South Dakota, Iowa, and Illinois, USA) that transect a strong modern and late Holocene environmental gradient, the prairie–forest ecotone. We performed detrended correspondence (DCA) and non-metric multidimensional scaling (NMDS) analyses. Both DCA and NMDS analyses of the data sets produced virtually the same results, and both failed to reveal the known ecological gradient within each state. However, both DCA and NMDS analyses of the unfiltered multistate data set across the entire gradient clearly reflect an environmental, rather than taphonomic, signal. DCA tended to provide better separation of some clusters than did NMDS in most of the analyses. We conclude that a robust mammal data set collected across a strong environmental gradient will document species turnover without the removal of taphonomic factors. In other words, taphonomy exhibits varying scale-dependent effects.
Details
- Title: Subtitle
- Overprinting of taphonomic and paleoecological signals across the forest–prairie environmental gradient, mid-continent of North America
- Creators
- Lauren E. Milideo - Pennsylvania State UniversityRussell W. Graham - Pennsylvania State UniversityCarl R. Falk - PaleoCultural Research GroupHolmes A. Semken - University of IowaMax L. Christie - Pennsylvania State University
- Resource Type
- Journal article
- Publication Details
- Paleobiology, Vol.44(3), pp.546-559
- Publisher
- Cambridge University Press
- DOI
- 10.1017/pab.2018.18
- ISSN
- 0094-8373
- eISSN
- 1938-5331
- Number of pages
- 14
- Alternative title
- TAPHONOMY, SCALE, ENVIRONMENTAL GRADIENT; LAUREN E. MILIDEO ET AL.
- Language
- English
- Date published
- 08/01/2018
- Academic Unit
- Earth and Environmental Sciences
- Record Identifier
- 9984516059802771
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