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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.


Authors: Andrew Dennis
Owners: Andrew Dennis
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

Abstract

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]

Subject Keywords

GISWR2018,Range map,Habitat,Turtles,Graptemys

How to cite

Dennis, A. (2018). 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., HydroShare, http://www.hydroshare.org/resource/f2f3674074f64448adc272d602737407

This resource is shared under the Creative Commons Attribution CC BY.

 http://creativecommons.org/licenses/by/4.0/
CC-BY

Sharing status:

  • Public Resource  Public
  • Sharable Resource  Shareable

Coverage

Spatial:

 Coordinate System/Geographic Projection:  WGS 84 EPSG:4326
 Coordinate Units:  Decimal degrees
North Latitude
32.1514°
East Longitude
-95.8019°
South Latitude
27.8138°
West Longitude
-101.6906°

Content

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Authors

The people or organizations that created the intellectual content of the resource.

Name Organization Address Phone Author Identifiers
Andrew Dennis University of Texas at Austin

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