Dicrostonyx richardsoni Merriam 1900

• Main Authors: Wilson, Don E., Reeder, DeeAnn
• Format: Other/Unknown Material
• Language: unknown
• Published: The Johns Hopkins University Press 2005
• Subjects: Biodiversity; Taxonomy; Animalia; Chordata; Mammalia; Rodentia; Cricetidae; Dicrostonyx; Dicrostonyx richardsoni; Churchill; Great Slave Lake; Hudson Bay; Richardson's Collared Lemming
• Online Access: https://doi.org/10.5281/zenodo.11324086; http://treatment.plazi.org/id/33CDCC19A338A38DD9598213BEB46437

Dicrostonyx richardsoni Merriam 1900 Dicrostonyx richardsoni Merriam 1900, Proc. Wash. Acad. Sci., 2: 26. Type Locality: Canada, Manitoba, Fort Churchill. Vernacular Names: Richardson's Collared Lemming. Distribution: W coast of Hudson Bay west to vicinity of Great Slave Lake, District of MacKenzie, Canada; extent of westward distribution unknown. Conservation: IUCN – Lower Risk (lc). Discussion: Autosomal polymorphisms and distinctive sex chromosomes based on standard karyotypes reported by Van Wynsberghe and Engstrom (1992), who retained richardsoni as distinct from D. groenlandicus and postulated its differentiation in a SC periglacial refugium. Strong divergence of mitochrondrial DNA genotypes, based on restriction fragment analysis, indicates that the origination of D. richardsoni predated the Wisconsin glaciation (Engstrom et al., 1993). Published as part of Wilson, Don E. & Reeder, DeeAnn, 2005, Order Rodentia - Family Cricetidae, pp. 955-1189 in Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2, Baltimore :The Johns Hopkins University Press on page 972, DOI: 10.5281/zenodo.7316535