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- Title
DISTRIBUTION, ABUNDANCE AND HABITAT ASSOCIATIONS OF THE BEAR LODGE MEADOW JUMPING MOUSE IN THE BLACK HILLS OF SOUTH DAKOTA.
- Authors
Mullican, Tim R.
- Abstract
The Bear Lodge meadow jumping mouse (Zapus hudsonius campestris) is listed by South Dakota as a species of greatest conservation need in riparian/wetland ecosystems of the Black Hills. In the summer of 2010, systematic live trapping was conducted in eight separate watersheds as part of a two-year study to determine the abundance of the Bear Lodge meadow jumping mouse. A total of 100 Sherman live traps were set for three consecutive days on each area. Percent cover of grass, forbs, shrubs, rocks, litter, moss and logs was estimated with the Daubenmire method. Other habitat variables measured included soil moisture, soil compaction, average width of the stream, and canopy cover. Capture rates averaged 1.4 individuals/100 trap nights and were highest in the northern Black Hills (4 individuals/100 trap nights), but no jumping mice were captured in the two southern-most study areas. Jumping mouse captures were positively correlated with percent cover of rock (r = 0.726, P = 0.041), litter (r = 0.844, P = 0.008) and moss (r = 0.794, P = 0.019), and were negatively correlated with soil moisture (r = -0.755, P = 0.03) and percent grass cover (r = -0.865, P = 0.006). There were no significant correlations between captures and percent cover of forbs (r = -0.312, P = 0.452), shrubs (r = -0.197, P = 0.64), and canopy openness (r = -0.267, P = 0.563). Additional trapping is planned for the summer of 2011 to further elucidate the distribution of this species in the Black Hills.
- Subjects
SOUTH Dakota; DISTRIBUTION (Probability theory); HABITATS; MEADOW jumping mouse; ANIMAL communities; SOIL moisture; ANIMAL species
- Publication
Proceedings of the South Dakota Academy of Science, 2011, Vol 90, p200
- ISSN
0096-378X
- Publication type
Article