Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

Laboratory Observations on the Vesper Rat

Dale E. Birkenholz and William O. Wirtz, II
Journal of Mammalogy
Vol. 46, No. 2 (May, 1965), pp. 181-189
DOI: 10.2307/1377836
Stable URL: http://www.jstor.org/stable/1377836
Page Count: 9
  • Read Online (Free)
  • Download ($42.00)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Laboratory Observations on the Vesper Rat
Preview not available

Abstract

The growth, development and general behavior of Nyctomys sumichrasti were observed during a 13-month period. Adults are primarily nocturnal. In the laboratory, family units or individuals raised together reside with each other; strangers to the group are not tolerated. Mating behavior, copulation and care of the young are described. The gestation period is approximately 30 days. Litter size averages two. The young reach adult size in approximately 6 weeks. Rate of development is rapid. The young crawl slowly at 2 days of age, and well at 5 days. When the eyes open at 15 to 18 days, coordination approximates that of the adults.

Page Thumbnails

  • Thumbnail: Page 
181
    181
  • Thumbnail: Page 
182
    182
  • Thumbnail: Page 
183
    183
  • Thumbnail: Page 
184
    184
  • Thumbnail: Page 
185
    185
  • Thumbnail: Page 
186
    186
  • Thumbnail: Page 
187
    187
  • Thumbnail: Page 
188
    188
  • Thumbnail: Page 
189
    189