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- Title
DISTRIBUTION OF THE PLAINS POCKET GOPHER (GEOMYS BURSARIUS) IN THE GRASSLAND PHYSIOGRAPHIC REGIONS OF INDIANA.
- Authors
Quinn, Vanessa S.; Chia-Chun Tsai; Zollner, Patrick A.
- Abstract
We conducted surveys for plains pocket gophers (Geomys bursarius) in nine counties in central and northern Indiana. The estimated mean (6 ± SD) population from road surveys was 512 ± 440 individuals which is lower than previous surveys. Gophers were not found in Warren and Tippecanoe counties where they were historically present and showed a decline in Benton and northern Jasper counties. The decline in northern Jasper County may have been in part due to the timing and intensity of our survey work. Northern Newton County shows mounding activity presumably indicating healthy populations. More than a dozen clusters of mounds were observed along the eastern edge of White County in an area where mounding activity was not previously detected. Finally, we analyzed the spatial pattern of gopher mounds detected during this and three previous surveys in Indiana to delineate eight putative Indiana subpopulations. The geographic extent of these subpopulations incorporates 404 km of roads within suitable habitat.
- Subjects
INDIANA; GEOMYS bursarius; GRASSLANDS; GEOMORPHOLOGY; HABITATS
- Publication
Proceedings of the Indiana Academy of Science, 2010, Vol 119, Issue 1, p87
- ISSN
0073-6767
- Publication type
Article