Peromyscus sp.
Creators: name: Bradley, Robert D.
name: Francis, James Q.
name: Platt II, Roy N.
name: Soniat, Taylor J.
name: Alvarez, Daysi
name: Lindsey, Laramie L.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Cricetidae
Peromyscus
Peromyscus sp.

description: <b> <i>Peromyscus</i> sp.</b> Currently, there is not a definitive name available for populations from the southwestern Yukon region that were found to be distinct from other members of the <i>P</i>. <i>maniculatus</i> species group by Wike (1998), Lucid and Cook (2007), and this study. The Yukon specimens genetically are different from populations of <i>P. keeni</i> to the south and from populations of <i>P. maniculatus</i> - like forms to the southwest and southeast that are now referable to <i>P. sonoriensis</i>. Wike (1998) eludes to the fact that the name <i>P. arcticus</i> might serve as a valid name for this distinct taxon. Although initially described as <i>Hesperomys leucopus arcticus</i> (Mearns 1890:285), this taxon later was treated as a subspecies, <i>Peromyscus maniculatus arcticus</i> (Osgood 1900:33). Later, Mearns (1911), based on “opinion 4” by the International Commission of Zoological Nomenclature (1910) realized that <i>P. m. arcticus</i> represented a preoccupied name that had been proposed by Coues (1877). Further, Mearns (1911) recognized that <i>P. m. arcticus</i> was problematic since the name referred to a specimen from Labrador (presumably assignable to a taxon from eastern Canada; most likely <i>P. m. maniculatus</i>); consequently, he described a new taxon (<i>P. m. borealis</i>) for the Yukon material and subsumed <i>P. m. arcticus</i> under this new subspecies and lists Fort Simpson, Yukon Territory, Canada as the type locality. Based on the data presented by Wike (1998), Lucid and Cook (2007), and this study, the situation is further complicated by the fact that populations formerly referred to <i>P. m. borealis</i> are now assigned to <i>P. sonoriensis</i> (e.g. <i>P. s. borealis</i>). In fact, some of the samples, included herein (those assignable to <i>P. s. borealis</i>) are located only 235 km from the type locality of <i>P. s. borealis</i> at Ft Simpson, Yukon Territory; whereas the closest population of the seemingly new species (<i>P.</i> sp.; Lapie River; 8.5km West of Ross River) is located nearly 600 km to the west. However, it does not seem appropriate, at this time, to simply refer this new identified species to <i>P.</i> sp. until addition specimens in the vicinity of the type locality of <i>P. s. borealis</i> can be examined. Therefore, we have not provided a formal description for the putative new species; instead we off a brief discussion of how it differs, genetically, from the two species (<i>P</i>. <i>sonoriensis</i> and <i>P</i>. <i>keeni</i>) that geographically are in close proximity to <i>P</i>. sp. <i>Justification for a new taxon.</i> —Examination of <i>Cyt</i> b sequences obtained in this study indicated that <i>P.</i> sp. differs from <i>P. sonoriensis</i> and <i>P. keeni</i> (two species geographically located to <i>P.</i> sp.) by 4.80% and 4.66% respectively. Genetic differentiation (= 0.92%) based on DNA sequences obtained from 28 individuals of <i>P</i>. sp. indicated a low level of genetic divergence for members of the <i>P</i>. <i>maniculatus</i> species group. This species exhibited a similar level of genetic divergence as did <i>P</i>. <i>gambelii</i> and <i>P</i>. <i>labecula</i>; two species that also occupy a fairly restricted geographic area. <i>Distribution of</i> P. <i>sp.</i> —Occurs in the southwestern portion of the Yukon province (Wike 1998; Lucid and Cook 2004; Sawyer et al. 2017; this study). Specifically, it appears that <i>P</i>. sp. is distributed along the lower elevations associated with the western portion of the Klondike and Yukon Plateaus, bounded by the Ogilvie Mountains in the north, the Saint Elias Mountains to the south, and Pelly Mountains to the east. Further it appears that <i>P. sonoriensis</i> occupies the regions to the northeast and southwest of Haines Junction; whereas <i>P. keeni</i> is distributed further to the east and south. Further collecting in the southern Yukon is necessary to determine the distributions of the three species (<i>P</i>. <i>keeni</i>, <i>P</i>. <i>sonoriensis</i> and <i>P</i>. sp.) occupying this area. <i>Remarks.</i> —Thirty-eight samples examined in this study were assigned to <i>P</i>. sp. Genetic divergences detected among the three species (<i>P</i>. <i>keeni</i>, <i>P</i>. <i>sonoriensis</i>, and <i>P</i>. sp.) occupying the Yukon and surrounding areas are similar to those detected among other recognized species in the <i>P. maniculatus</i> (Hogan et al. 1997; Greenbaum et al. 2017; this study), <i>P. boylii</i> (Bradley et al. 2014, 2017), and <i>P. mexicanus</i> (Bradley et al. 2015) species groups; and considerably less than reported for the <i>P. truei</i> (Durish et al. 2004) species group. Further these results are in agreement with characteristics of genetic species as presented in Bradley and Baker (2001) and Baker and Bradley (2006). Divergence estimates obtained herein suggested that <i>P.</i> sp. diverged from a common ancestor of the <i>P. keeni</i> clade approximately 1.12 mya.
description: Published as part of <i>Bradley, Robert D., Francis, James Q., Platt II, Roy N., Soniat, Taylor J., Alvarez, Daysi &amp; Lindsey, Laramie L., 2019, Mitochondrial Dna Sequence Data Indicate Evidence For Multiple Species Within Peromyscus Maniculatus, pp. 1-59 in Special Publications of the Museum of Texas Tech University 70</i> on pages 27-28, DOI: 10.5281/zenodo.7221903
description: {"references": ["Wike, M. J. 1998. Mitochondrial-DNA variation among populations of Peromyscus from Yukon, Canada and southeastern Alaska. M. S. Thesis, Department of Biology, Texas A &amp; M University, College Station.", "Lucid, M. K., and J. A. Cook. 2007. Cytochrome-b haplotypes suggest an undescribed Peromyscus species from the Yukon. Canadian Journal of Zoology 85: 916 - 919.", "Mearns, E. A. 1890. Description of supposed new species and subspecies of mammals, from Arizona. Bulletin of the American Museum of Natural History 2: 277 - 307.", "Osgood, W. H. 1900. Results of a biological reconnoissance of the Yukon River region. North American Fauna 19: 1 - 20.", "Mearns, E. A. 1911. New names for two subspecies of Peromyscus maniculatus (Wagner). Proceedings of the Biological Society of Washington 24: 101 - 102.", "International Commission of Zoological Nomenclature. 1910. Opinions rendered by the International Commission of Zoological Nomenclature. Opinions 1 to 25, publication 1938 by the Smithsonian Institution.", "Coues, E. 1877. Muridae. Monographs of North American Rodentia. Report of the U. S. Geological Survey of the Territories Pp III - 264.", "Lucid, M. K., and J. A. Cook. 2004. Phylogeography of Keen's mouse (Peromyscus keeni) in a naturally fragmented landscape. Journal of Mammalogy 85: 1149 - 1159.", "Sawyer, Y. E., M. J. Flamme, T. S. Jung, S. O. MacDonald, and J. A. Cook. 2017. Diversification of deermice (Rodentia: genus Peromyscus) at their north-western range limit: genetic consequences of refugial and island isolation. Journal of Biogeography 44: 1572 - 1585.", "Hogan, K. M., S. K. Davis, and I. F. Greenbaum. 1997. Mitochondrial-DNA analysis of the systematic relationships within the Peromyscus maniculatus species group. Journal of Mammalogy 78: 733 - 743.", "Greenbaum, I. F., S. E. Chirhart, M. L. Walker, and R. L. Honeycutt. 2017. Molecular phylogenetics of western deer mice (Peromyscus): Taxonomic and biogeographic implications. The Southwestern Naturalist 62: 129 - 137.", "Bradley, R. D., N. Ordonez-Garza, C. G. Sotero-Caio, H. M. Huynh, C. W. Kilpatrick, L. I. Iniguez-Davalos, and D. J. Schmidly. 2014. Morphometric, karyotypic, and molecular evidence for a new species of Peromyscus (Cricetidae: Neotominae) from Nayarit, Mexico. Journal of Mammalogy, 95: 176 - 186.", "Bradley, R. D., N. Ordonez-Garza, G. Ceballos, D. S. Rogers, and D. J. Schmidly. 2017. A new species in the Peromyscus boylii species group (Cricetidae: Neotominae) from Mi- choacan, Mexico. Journal of Mammalogy 98: 154 - 165.", "Bradley, R. D., D. J. Schmidly, B. R. Amman, R. N. Platt II, K. M. Neumann, H. M. Huynh, R. Muniz-Martinez, C. Lopez- Gonzalez, and N. Ordonez-Garza. 2015. Molecular and morphometric data reveal multiple species in Peromyscus pectoralis. Journal of Mammalogy, 96: 446 - 459.", "Durish, N. D., K. E. Halcomb, C. W. Kilpatrick, and R. D. Bradley. 2004. Molecular systematics of the Peromyscus truei species group. Journal of Mammalogy, 85: 1160 - 1169.", "Bradley, R. D., and R. J. Baker. 2001. A test of the genetic species concept: cytochrome-b sequences and mammals. Journal of Mammalogy 82: 960 - 973.", "Baker, R. J., and R. D. Bradley. 2006. Speciation in mammals and the genetic species concept. Journal of Mammal- ogy 87: 643 - 662."]}