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Journal of Wildlife Diseases, 42(4), 2006, pp. 813-818
© Wildlife Disease Association  2006
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SHORT COMMUNICATION

Deer Mouse Movements in Peridomestic and Sylvan Settings in Relation to Sin Nombre Virus Antibody Prevalence

Richard J. Douglass1,4, William J. Semmens2, Stephanie Jo Matlock-Cooley3 and Amy J. Kuenzi1

1 Department of Biology, Montana Tech of the University of Montana, 1300 West Park St., Butte, Montana 59701, USA;
2 Montana Department of Transportation, Environmental Services Helena, Montana 59620-1001, USA;
3 Department of Biology, Mesa State College, Grand Junction, Colorado 81501, USA
4 Corresponding author (email: rdouglass{at}mtech.edu)

ABSTRACT:   Prevalence of antibody to Sin Nombre virus (SNV) has been found to be nearly twice as high in deer mice (Peromyscus maniculatus) in peridomestic settings as in sylvan settings in two studies in Montana and one in New Mexico. We investigated whether this difference may be related to a difference in deer mouse movements in the two settings. We used radiotelemetry to determine home range size and length of movement for 22 sylvan (1991–1992) and 40 peridomestic deer mice (1995–1999). We also determined the percentage of locations inside versus outside of buildings for peridomestic mice. Though variable, average home range size for female deer mice was significantly smaller for peridomestic deer mice than for sylvan deer mice. The smaller home range in peridomestic settings may concentrate shed SNV, and protection from solar ultraviolet radiation inside buildings may increase environmental persistence of SNV. Both these factors could lead to increased SNV exposure of deer mice within peridomestic populations and result in higher antibody prevalence. Peridomestic deer mice moved between buildings and outside areas, which is evidence that SNV can be transmitted between peridomestic and sylvan populations.
  Key words:  Deer mouse, hantavirus, home range, Peromyscus maniculatus, radiotelemetry, Sin Nombre virus, SNV transmission.






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