Differentiating Microtus Xanthognathus and Microtus Pennsylvanicus Lower First Molars Using Discriminant Analysis of Landmark Data
The distinct ecological requirements of Microtus xanthognathus (yellow-cheeked vole or taiga vole) and M. pennsylvanicus (meadow vole) warrant accurate discrimination of their remains in studies of paleoecology and past biogeographical shifts. An occlusal length of the lower 1st molars (ml) that is...
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Digital Commons @ East Tennessee State University
2006
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Online Access: | https://dc.etsu.edu/etsu-works/18101 https://doi.org/10.1644/05-MAMM-A-209R3.1 |
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fteasttennesseeu:oai:dc.etsu.edu:etsu-works-19367 2023-07-30T04:07:12+02:00 Differentiating Microtus Xanthognathus and Microtus Pennsylvanicus Lower First Molars Using Discriminant Analysis of Landmark Data Wallace, Steven 2006-12-01T08:00:00Z https://dc.etsu.edu/etsu-works/18101 https://doi.org/10.1644/05-MAMM-A-209R3.1 unknown Digital Commons @ East Tennessee State University https://dc.etsu.edu/etsu-works/18101 doi:10.1644/05-MAMM-A-209R3.1 https://doi.org/10.1644/05-MAMM-A-209R3.1 ETSU Faculty Works discriminant function landmark data meadow vole microtus pennsylvanicus microtus xanthognathus morphometrics yellow-cheeked vole Geosciences text 2006 fteasttennesseeu https://doi.org/10.1644/05-MAMM-A-209R3.1 2023-07-15T18:46:14Z The distinct ecological requirements of Microtus xanthognathus (yellow-cheeked vole or taiga vole) and M. pennsylvanicus (meadow vole) warrant accurate discrimination of their remains in studies of paleoecology and past biogeographical shifts. An occlusal length of the lower 1st molars (ml) that is >3.2 mm for M. xanthognathus is the method most frequently used to separate these 2 taxa in archaeological and paleontological samples. However, these measurements alone are unreliable because some specimens of M. pennsylvanicus overlap smaller individuals of M. xanthognathus in size. Therefore, I created and tested a morphometric technique that discriminates Recent lower 1st molars (mis) of M. pennsylvanicus from those of M. xanthognathus, and is applicable to other taxa (both modern and fossil). Despite overlapping occlusal length, my discriminant function based on landmark data correctly classified 100% (n = 53) of Recent m1s from the 2 taxa and 97.7% (43 of 44) of (assumed) m1s of M. pennsylvanicus from an archaeological site from about AD 1200 in central Nebraska. This landmark scheme is applicable to fossil and modern Microtus worldwide. © 2006 American Society of Mammalogists. Text taiga Digital Commons @ East Tennessee State University Journal of Mammalogy 87 6 1261 1269 |
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Open Polar |
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Digital Commons @ East Tennessee State University |
op_collection_id |
fteasttennesseeu |
language |
unknown |
topic |
discriminant function landmark data meadow vole microtus pennsylvanicus microtus xanthognathus morphometrics yellow-cheeked vole Geosciences |
spellingShingle |
discriminant function landmark data meadow vole microtus pennsylvanicus microtus xanthognathus morphometrics yellow-cheeked vole Geosciences Wallace, Steven Differentiating Microtus Xanthognathus and Microtus Pennsylvanicus Lower First Molars Using Discriminant Analysis of Landmark Data |
topic_facet |
discriminant function landmark data meadow vole microtus pennsylvanicus microtus xanthognathus morphometrics yellow-cheeked vole Geosciences |
description |
The distinct ecological requirements of Microtus xanthognathus (yellow-cheeked vole or taiga vole) and M. pennsylvanicus (meadow vole) warrant accurate discrimination of their remains in studies of paleoecology and past biogeographical shifts. An occlusal length of the lower 1st molars (ml) that is >3.2 mm for M. xanthognathus is the method most frequently used to separate these 2 taxa in archaeological and paleontological samples. However, these measurements alone are unreliable because some specimens of M. pennsylvanicus overlap smaller individuals of M. xanthognathus in size. Therefore, I created and tested a morphometric technique that discriminates Recent lower 1st molars (mis) of M. pennsylvanicus from those of M. xanthognathus, and is applicable to other taxa (both modern and fossil). Despite overlapping occlusal length, my discriminant function based on landmark data correctly classified 100% (n = 53) of Recent m1s from the 2 taxa and 97.7% (43 of 44) of (assumed) m1s of M. pennsylvanicus from an archaeological site from about AD 1200 in central Nebraska. This landmark scheme is applicable to fossil and modern Microtus worldwide. © 2006 American Society of Mammalogists. |
format |
Text |
author |
Wallace, Steven |
author_facet |
Wallace, Steven |
author_sort |
Wallace, Steven |
title |
Differentiating Microtus Xanthognathus and Microtus Pennsylvanicus Lower First Molars Using Discriminant Analysis of Landmark Data |
title_short |
Differentiating Microtus Xanthognathus and Microtus Pennsylvanicus Lower First Molars Using Discriminant Analysis of Landmark Data |
title_full |
Differentiating Microtus Xanthognathus and Microtus Pennsylvanicus Lower First Molars Using Discriminant Analysis of Landmark Data |
title_fullStr |
Differentiating Microtus Xanthognathus and Microtus Pennsylvanicus Lower First Molars Using Discriminant Analysis of Landmark Data |
title_full_unstemmed |
Differentiating Microtus Xanthognathus and Microtus Pennsylvanicus Lower First Molars Using Discriminant Analysis of Landmark Data |
title_sort |
differentiating microtus xanthognathus and microtus pennsylvanicus lower first molars using discriminant analysis of landmark data |
publisher |
Digital Commons @ East Tennessee State University |
publishDate |
2006 |
url |
https://dc.etsu.edu/etsu-works/18101 https://doi.org/10.1644/05-MAMM-A-209R3.1 |
genre |
taiga |
genre_facet |
taiga |
op_source |
ETSU Faculty Works |
op_relation |
https://dc.etsu.edu/etsu-works/18101 doi:10.1644/05-MAMM-A-209R3.1 https://doi.org/10.1644/05-MAMM-A-209R3.1 |
op_doi |
https://doi.org/10.1644/05-MAMM-A-209R3.1 |
container_title |
Journal of Mammalogy |
container_volume |
87 |
container_issue |
6 |
container_start_page |
1261 |
op_container_end_page |
1269 |
_version_ |
1772820387386621952 |