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- Title
POPULATION ESTIMATES 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 commonly reported from the Black Hills of South Dakota and the adjacent Bear Lodge Mountains of Wyoming, however little information is available regarding its population densities and habitat associations. The purpose of this study was to determine the present distribution, population estimates, and habitat affinities of Z. hudsonius campestris in the Black Hills of South Dakota and compare its current distribution to the historical record. Live trapping methods were used to estimate the population density of this species. Capture rates ranged from 0 to 4.7 individuals per 100 trap nights, with a mean ± 1 SD of 1.7 ± 1.6. The Jolly-Seber population estimate per km of stream (x ± 1 SD) was 31 ± 26, and was significantly different from the minimum-number known alive estimate (x ± 1 SD) of 18 ± 14 per km of stream (t = -3.65, df = 15, P = 0.002). The relative abundance of jumping mice ranged from 7 to 78% of the total number of small mammals. On 4 of the 16 streamside transects, the jumping mouse was the most numerous species, and was overall very common. Jumping mice were significantly correlated with percent litter cover (r = 0.673, df = 14, P = 0.006), percent moss cover (r = 0.58, df = 14, P = 0.039), and negatively correlated with percent grass cover (r = -0.546, df = 14, P = 0.035). Captures occurred at elevations ranging from 1279 to 1890 m. Jumping mice were captured throughout the range of historical records, and were even collected in Meade County, despite a lack of reports of meadow jumping mice from that county in the past.
- Subjects
BEAR Lodge Mountains (Wyo.); MEADOW jumping mouse; ZAPUS; PACIFIC jumping mouse; LABORATORY mice
- Publication
Proceedings of the South Dakota Academy of Science, 2014, Vol 93, p89
- ISSN
0096-378X
- Publication type
Article