USGS - science for a changing world

Northern Prairie Wildlife Research Center

  Home About NPWRC Our Science Staff Employment Contacts Common Questions About the Site

Key to the Skulls of North Dakota Mammals

Note on Peromyscus

The genus Peromyscus is represented in North Dakota by at least two species: P. maniculatus, Deer Mouse and P. leucopus, White-footed Mouse (each species has two or more subspecies recorded from the state). While Marston (1966) showed that the two species can be readily discriminated (separated) by electrophoretic methods, skulls show a high degree of variability. They are variable to the extent that identifying some of them is almost impossible. Soiseth (1970) studied phenetic discrimination of P. m. bairdii and P. l. noveboracensis in the Red River Valley of North Dakota. Soiseth obtained a certain degree of separation but was not able to show complete discrimination. Until additional research is done, separation of these two species in North Dakota is not advisable using skull characteristics.
Previous Section -- Key to Orders
Return to Contents
Next Section -- Acknowledgments

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo logo U.S. Department of the Interior | U.S. Geological Survey
Page Contact Information: Webmaster
Page Last Modified: Saturday, 02-Feb-2013 05:57:27 EST
Sioux Falls, SD [sdww55]