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Study of pathological conditions in wild rodents in radioactive areas. [Peromyscus leucopus, Sigmodon hispidus, Oryzomys palustris]

Journal Article · · Am. Midl. Nat.; (United States)
DOI:https://doi.org/10.2307/2423088· OSTI ID:6230447
;
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 radiation exposure 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. 24 references, 1 figure, 7 tables.
Research Organization:
Oak Ridge National Lab., TN
OSTI ID:
6230447
Journal Information:
Am. Midl. Nat.; (United States), Journal Name: Am. Midl. Nat.; (United States) Vol. 76:2; ISSN AMNAA
Country of Publication:
United States
Language:
English

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Related Subjects

560152* -- Radiation Effects on Animals-- Animals
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ADRENAL GLANDS
ANIMALS
BIOLOGICAL EFFECTS
BIOLOGICAL MATERIALS
BIOLOGICAL RADIATION EFFECTS
BLOOD
BLOOD CELLS
BODY
BODY FLUIDS
COMPARATIVE EVALUATIONS
DATA
DISEASE INCIDENCE
DISEASES
DOSES
ENDOCRINE GLANDS
ERYTHROCYTES
EXPERIMENTAL DATA
GLANDS
INFECTIOUS DISEASES
INFORMATION
LEUKOCYTES
MAMMALS
MATERIALS
NUMERICAL DATA
ORGANS
PARASITIC DISEASES
PATHOLOGICAL CHANGES
RADIATION DOSES
RADIATION EFFECTS
RADIOACTIVITY
RODENTS
SPLEEN
VERTEBRATES
WEIGHT