Population Dynamics of the Deer Mouse (Peromyscus maniculatus) and Sin Nombre Virus, California Channel Islands
1997

Hantavirus Pulmonary Syndrome and Deer Mouse Populations

Sample size: 531 publication Evidence: moderate

Author Information

Author(s): Tim B. Graham, Bruno B. Chomel

Primary Institution: USGS, Biological Resources Division; University of California, Davis

Hypothesis

Does the prevalence of Sin Nombre virus (SNV) in deer mice vary spatially and temporally across different islands?

Conclusion

The prevalence of SNV in mouse populations varies by island and location, indicating complex dynamics in the relationship between deer mice and the virus.

Supporting Evidence

  • SNV prevalence in mice varied from 0% to 71% across different islands.
  • Capture success and density estimates were lower in 1996 compared to 1995.
  • Significantly more adult mice were seropositive than juvenile or subadult mice.

Takeaway

Scientists studied mice on California islands to see how many had a virus called SNV. They found that the number of sick mice changed a lot depending on where they were.

Methodology

Mice were trapped at two locations on three islands, and blood samples were tested for SNV antibodies.

Potential Biases

Potential bias due to non-systematic trapping and incomplete data from previous years.

Limitations

Sampling was limited to one location per island, and mouse densities were not systematically estimated.

Participant Demographics

Mice captured included juvenile, subadult, and adult Peromyscus maniculatus.

Statistical Information

P-Value

p<0.0001

Statistical Significance

p<0.0001

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