. Potential effects of highway mortality and habitat fragmentation on a population of painted turtles in Montana . of the project not related to wildlife mitigation, including shoulder reconstruction, slope and drainage modifications, and a boardwalk for people stopping to view the Preserve's wildlife was included. A concern in the placement of the barrier was that vehicles might go over the lipped wall, making emergency response more difficult as well as making vehicles more difficult to see from the road. In-sloped and wide clear zones reduced this concern (USDA Forest Service website
. Potential effects of highway mortality and habitat fragmentation on a population of painted turtles in Montana . of the project not related to wildlife mitigation, including shoulder reconstruction, slope and drainage modifications, and a boardwalk for people stopping to view the Preserve's wildlife was included. A concern in the placement of the barrier was that vehicles might go over the lipped wall, making emergency response more difficult as well as making vehicles more difficult to see from the road. In-sloped and wide clear zones reduced this concern (USDA Forest Service website ). Vegetation growing along the wall has allowed some small mammals to breach the lipped wall. Therefore, vegetation maintenance is required. A slope arm mower is used at Paynes Prairie. The effectiveness of this culvert/barrier system has been well monitored. A 41% reduction in wildlife road mortality was recorded between the pre- and post-construction periods (Barichivich and Dodd 2002). If birds and hylids (climbing treefrogs) which cannot be prevented from access to the highway by the barriers, are eliminated from analysis there was a % reduction in road mortality. Also, an increase in culvert use for many species was observed. A reduced number of road mortality and an increased use of culverts are considered the best indication of a successful passage design. Figure A-9. Paynes Prairie Ecopassage - Artist rendition. (Florida). Photo: dot. gov/environment/wildlifecross A-9
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Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcollectionamericana, booksubjectroads, booksubjectturtles
