If you need an accessible version of this item please contact JSTOR User Support

A Study of Pathological Conditions in Wild Rodents in Radioative Areas

H. E. Childs, Jr. and G. E. Cosgrove
The American Midland Naturalist
Vol. 76, No. 2 (Oct., 1966), pp. 309-324
Published by: University of Notre Dame
DOI: 10.2307/2423088
Stable URL: http://www.jstor.org/stable/2423088
Page Count: 16
  • Download PDF
  • Cite this Item

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 need an accessible version of this item please contact JSTOR User Support
A Study of Pathological Conditions in Wild Rodents in Radioative Areas
Preview not available

Abstract

Comparisons were made using wild Peromyscus leucopus, Sigmodon hispidus, and Oryzomys palustris from radiocontaminated and uncontaminated sites. The studies included length measurement, body weight, spleen and adrenal weights, gross and microscopic necropsy examination, determination of packed red cell volume and differential leukocyte count, and collection of parasites. No significant differences attributable to exposure to radiation were seen. Many lesions were encountered at necropsy of the animals, but they were usually incidental findings not seriously threatening the health of the host. There was a wide range in hematologic values probably due in part to differing incidental disease and parasite burdens. The presence of Cuterebra bot larvae in P. leucopus led to significant reduction in the hematocrit. There was a high incidence of parasitism in all three species, but associated pathologic changes were not serious in most instances. It appears that diseased animals are rapidly removed from wild populations and are not ordinarily recovered in a study of this nature. The levels of radiation exposure are probably too low to result in somatic effects in exposed animals during their short life in the wild.

Page Thumbnails

  • Thumbnail: Page 
309
    309
  • Thumbnail: Page 
310
    310
  • Thumbnail: Page 
311
    311
  • Thumbnail: Page 
312
    312
  • Thumbnail: Page 
313
    313
  • Thumbnail: Page 
314
    314
  • Thumbnail: Page 
315
    315
  • Thumbnail: Page 
316
    316
  • Thumbnail: Page 
317
    317
  • Thumbnail: Page 
318
    318
  • Thumbnail: Page 
319
    319
  • Thumbnail: Page 
320
    320
  • Thumbnail: Page 
321
    321
  • Thumbnail: Page 
322
    322
  • Thumbnail: Page 
323
    323
  • Thumbnail: Page 
324
    324