Taxonomic revision of the long-tailed shrew, Sorex dispar Batchelder, 1911, from the Appalachian Region of North America, with the description of a new subspecies
The long-tailed shrew, Sorex dispar Batchelder, 1911, and Gaspe shrew, S. gaspensisAnthony and Goodwin, 1924, from the Appalachian Mountains of North America have been characterized as genetically highly similar, and that one is morphologically a clinal variate of the other, i.e., there is a single...
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ftbioone:10.1093/jmammal/gyz127 2024-06-02T08:04:36+00:00 Taxonomic revision of the long-tailed shrew, Sorex dispar Batchelder, 1911, from the Appalachian Region of North America, with the description of a new subspecies Victor E. Diersing Victor E. Diersing world 2019-09-06 text/HTML https://doi.org/10.1093/jmammal/gyz127 en eng American Society of Mammalogists doi:10.1093/jmammal/gyz127 All rights reserved. https://doi.org/10.1093/jmammal/gyz127 Text 2019 ftbioone https://doi.org/10.1093/jmammal/gyz127 2024-05-07T00:55:29Z The long-tailed shrew, Sorex dispar Batchelder, 1911, and Gaspe shrew, S. gaspensisAnthony and Goodwin, 1924, from the Appalachian Mountains of North America have been characterized as genetically highly similar, and that one is morphologically a clinal variate of the other, i.e., there is a single species. I measured 24 characters of the skull on 196 shrews from throughout the range of the species. Geographic variation in skull shape and size was not gradual or continuous, but abrupt. These abrupt changes in morphology are associated with major water barriers, primarily the Connecticut River, middle Saint John River, and the Strait of Canso, which separates mainland Nova Scotia from Cape Breton Island. The morphological analyses presented here and previous genetic studies indicate that S. dispar and S. gaspensis are likely conspecific. Shrews with the largest skull occur from North Carolina north to Vermont and are referable to S. d. dispar with S. d. blitchi as a synonym. Shrews from New Hampshire northeast to southern New Brunswick and mainland Nova Scotia have a medium-sized skull and are referable to a new subspecies. Those from northern New Brunswick, Gaspe Peninsula of Quebec, and Cape Breton Island have a small skull and are referable to S. d. gaspensis. The skull morphology of S. d. gaspensis and the new subspecies are more similar to each other than to S. d. dispar. Results of this study differ from those of previous morphological studies because measurement error and within-group variation were reduced, which allowed for visibility of otherwise “hidden” between-group differences, or geographic variation. Text Breton Island BioOne Online Journals Breton Island ENVELOPE(141.383,141.383,-66.800,-66.800) Canso ENVELOPE(-59.050,-59.050,-63.683,-63.683) Goodwin ENVELOPE(-62.833,-62.833,-65.100,-65.100) Journal of Mammalogy 100 6 1837 1846 |
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ftbioone |
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English |
description |
The long-tailed shrew, Sorex dispar Batchelder, 1911, and Gaspe shrew, S. gaspensisAnthony and Goodwin, 1924, from the Appalachian Mountains of North America have been characterized as genetically highly similar, and that one is morphologically a clinal variate of the other, i.e., there is a single species. I measured 24 characters of the skull on 196 shrews from throughout the range of the species. Geographic variation in skull shape and size was not gradual or continuous, but abrupt. These abrupt changes in morphology are associated with major water barriers, primarily the Connecticut River, middle Saint John River, and the Strait of Canso, which separates mainland Nova Scotia from Cape Breton Island. The morphological analyses presented here and previous genetic studies indicate that S. dispar and S. gaspensis are likely conspecific. Shrews with the largest skull occur from North Carolina north to Vermont and are referable to S. d. dispar with S. d. blitchi as a synonym. Shrews from New Hampshire northeast to southern New Brunswick and mainland Nova Scotia have a medium-sized skull and are referable to a new subspecies. Those from northern New Brunswick, Gaspe Peninsula of Quebec, and Cape Breton Island have a small skull and are referable to S. d. gaspensis. The skull morphology of S. d. gaspensis and the new subspecies are more similar to each other than to S. d. dispar. Results of this study differ from those of previous morphological studies because measurement error and within-group variation were reduced, which allowed for visibility of otherwise “hidden” between-group differences, or geographic variation. |
author2 |
Victor E. Diersing |
format |
Text |
author |
Victor E. Diersing |
spellingShingle |
Victor E. Diersing Taxonomic revision of the long-tailed shrew, Sorex dispar Batchelder, 1911, from the Appalachian Region of North America, with the description of a new subspecies |
author_facet |
Victor E. Diersing |
author_sort |
Victor E. Diersing |
title |
Taxonomic revision of the long-tailed shrew, Sorex dispar Batchelder, 1911, from the Appalachian Region of North America, with the description of a new subspecies |
title_short |
Taxonomic revision of the long-tailed shrew, Sorex dispar Batchelder, 1911, from the Appalachian Region of North America, with the description of a new subspecies |
title_full |
Taxonomic revision of the long-tailed shrew, Sorex dispar Batchelder, 1911, from the Appalachian Region of North America, with the description of a new subspecies |
title_fullStr |
Taxonomic revision of the long-tailed shrew, Sorex dispar Batchelder, 1911, from the Appalachian Region of North America, with the description of a new subspecies |
title_full_unstemmed |
Taxonomic revision of the long-tailed shrew, Sorex dispar Batchelder, 1911, from the Appalachian Region of North America, with the description of a new subspecies |
title_sort |
taxonomic revision of the long-tailed shrew, sorex dispar batchelder, 1911, from the appalachian region of north america, with the description of a new subspecies |
publisher |
American Society of Mammalogists |
publishDate |
2019 |
url |
https://doi.org/10.1093/jmammal/gyz127 |
op_coverage |
world |
long_lat |
ENVELOPE(141.383,141.383,-66.800,-66.800) ENVELOPE(-59.050,-59.050,-63.683,-63.683) ENVELOPE(-62.833,-62.833,-65.100,-65.100) |
geographic |
Breton Island Canso Goodwin |
geographic_facet |
Breton Island Canso Goodwin |
genre |
Breton Island |
genre_facet |
Breton Island |
op_source |
https://doi.org/10.1093/jmammal/gyz127 |
op_relation |
doi:10.1093/jmammal/gyz127 |
op_rights |
All rights reserved. |
op_doi |
https://doi.org/10.1093/jmammal/gyz127 |
container_title |
Journal of Mammalogy |
container_volume |
100 |
container_issue |
6 |
container_start_page |
1837 |
op_container_end_page |
1846 |
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1800749252037574656 |