Mapping Two Central Texas Map Turtles: Geospatial Analysis of Range and Habitat Availability in Relation to Anthropogenic Land-Uses and Automobile Disturbances for Graptemys caglei and Graptemys versa.
|Resource type:||Composite Resource|
|Created:||Sep 21, 2018 at 4:35 a.m.|
|Last updated:||Oct 29, 2018 at 12:01 a.m. by Andrew Dennis|
High quality range maps with adjoining maps showing anthropogenic effects on habitat for a state threatened species, Cagle’s Map Turtle (Graptemys caglei), and the closely related Texas Map Turtle (Graptemys versa). Spatial analysis determines percent of stream segments in the species’ ranges that are within 100m, 500m, and 1,000m of roadways. Proximity to roadways may cause significant stress for these shy, basking species. Finding segments less effected by automobile disturbance may aid conservation biologists and policy makers in designating protected areas. Additionally, using GIS techniques help address the question "do the two habitats differ significantly in stream segment compositions—both physical and chemical—as well as streamside structure characteristics such as shade and slope?"
[This work is in progress and will be updated as completed]
How to cite
This resource is shared under the Creative Commons Attribution CC BY.http://creativecommons.org/licenses/by/4.0/
|Coordinate System/Geographic Projection:||WGS 84 EPSG:4326|
|Coordinate Units:||Decimal degrees|
|Andrew Dennis||University of Texas at Austin|
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