Microtus (Mynomes) pennsylvanicus Ord 1815

Wilson, Don E. & Reeder, DeeAnn, 2005, Order Rodentia - Family Cricetidae, Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2, Baltimore: The Johns Hopkins University Press, pp. 955-1189 : 1012

publication ID	https://doi.org/ 10.5281/zenodo.7316535
persistent identifier	https://treatment.plazi.org/id/791B46ED-A4A6-1332-414B-F08ECB12FD80
treatment provided by	Guido
scientific name	Microtus (Mynomes) pennsylvanicus Ord 1815
status

Treatment

Microtus (Mynomes) pennsylvanicus Ord 1815 , in: Guthrie, New Geogr., Hist., Coml. Grammar, Philadelphia, 2nd ed., Vol. 2: 292.

Type Locality: USA, Pennsylvania, "meadows below Philadelphia." .

Vernacular Names: Meadow Vole.

Distribution: Meadowlands interspersed across boreal and mixed coniferous-deciduous biomes of North America: C Alaska to Labrador, including Newfoundland and Prince Edward Isl, Canada; south in Rocky Mountains to N New Mexico, in Great Plains to N Kansas (see Frey and Moore, 1990), and in Appalachians and along eastern seaboard to N Georgia and South Carolina, USA; outlier populations in W New Mexico and peninsular Florida, USA, and in N Chihuahua, México.

Conservation: U.S. ESA —Endangered as M. p. dukecampbelli; IUCN – Vulnerable as M. p. dukecampbelli, Lower Risk (nt) as M. p. admiraltiae, M. p. kincaidi, M. p. provectus, and M. p. shattucki, not evaluated as M. p. chihuahuensis, otherwise Lower Risk (lc).

Discussion: Subgenus Mynomes , pennsylvanicus species group ( Zagorodnyuk, 1990). Proposed as conspecific with Old World M. agrestis by Klimkiewicz (1970), but G-banded chromosomal differences support their recognition as distinct species ( Modi, 1987; Vorontsov and Lyapunova, 1986). Aside from the probable insular derivative M. breweri (see that account), pennsylvanicus is closely related to M. montanus and M. townsendii among New World species (see Conroy and Cook, 2000 a; Hooper and Hart, 1962; Modi, 1987; Moore and Janecek, 1990). Insular form provectus relegated to subspecific status by Chamberlain (1954) and Moyer et al. (1988), and nesophilus by Jones et al. (1986). Regional studies of variation undertaken (e.g., Anderson, 1956; Anderson and Hubbard, 1971; Weddle and Choate, 1983), but comprehensive review of entire species warranted. Late Pleistocene and Holocene vegetational and climatic changes discussed by Woods et al. (1982) apropos isolation of the Florida population (dukecambelli) and other arvicoline austral relicts. Intricate study of M3 variation in fossil and extant samples conducted by Barnosky (1993), who attempted to infer microevolutionary processes from broad stratigraphic and geographic patterns. See Reich (1981, Mammalian Species, 159).