Using groundwater levels to identify vulnerable salamander populations

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Using groundwater levels to identify vulnerable
salamander populations

• GIS Term Project
• November 28, 2006
• Corinne Wong

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Outline

• Salamander
• Objectives
• Data collection
• Initial analysis
• Any ideas?

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Salamanders

• Eurycea
• Endangered Species
• City of Austin
• Surveys
• Captive Breeding

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(No Transcript)
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Objectives

• Distribution of populations
• Ground water level
• Vulnerability
• Compare

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Data Collection

• Headache!
• Tabulate
• Download / process

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Download and Process
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• USGS unpublished database

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Initial Analysis

• Interpolate raster surfaces
• Rastor Calculator
• Zero equal, Neg GWL drop, Pos GWL rise

Pos Blue, Neg Red
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Draw down for 2010 with average recharge rates
Raster Calculator
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Any ideas

• Data processing
• Raster Methods
• Evaluate vulnerability
• Comparing