Free and Discounted Ebooks
Join 150,000 readers! Get our ebook deals straight to your inbox.

Geographic Variation in the Harvest Mouse, Reithrodontomys megalotis

On the Central Great Plains And in Adjacent Regions

Cover image for


Author: J. Knox Jones
Co-author: B. Mursaloglu
Published: 1961
Language: English
Wordcount: 7,543 / 34 pg
Flesch-Kincaid Reading Ease: 47.8
LoC Category: QH
Downloads: 357
Added to site: 2009.08.02 24866
Genres: Science, Post-1930

rts of Nebraska and Kansas, and many individuals from the two areas can be matched almost exactly.

To the southwest, on the other hand, a trend toward paler (pale brownish, less blackish) upper parts is apparent. Specimens from southwestern Kansas and adjacent parts of Colorado and Oklahoma average slightly paler in comparable pelages than specimens from northeastern Kansas and eastern Nebraska, but most specimens from farther southwest, in northern New Mexico and southwestern Colorado, are discernibly, although not markedly, paler than mice from northern and eastern populations.

A "pectoral spot," fairly common in some populations of R. megalotis east of the Missouri River (see Hoffmeister and Warnock, 1955:162-163), is present in only a small percentage of the specimens we have studied, and when present is usually only faintly developed.

External and Cranial Size

[Illustration: FIG. 1. Geographic variation in five measurements of Reithrodontomys megalotis



Join 150,000+ fellow readers! Get Free eBooks and book bargains from ManyBooks in your inbox. 

We respect your email privacy

login | register

User ID


reset password

Author of the Day

B. B. Griffith
B. B. Griffith writes thrillers of all types, from psychological to supernatural. He is the author of the Tournament series, the Vanished series, and the Gordon Pope series. As our Author of the Day, he tells us all about his latest book, The Sleepwalkers, in which a 12-year old boy is accused of committing violent assault while asleep.
Read full interview...