Potential areas for exposure to Rickettsia spp' in Northwest Arkansas

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Potential areas for exposure to Rickettsia spp.
in Northwest Arkansas

• Becky Trout, Abby Darrah, Maureen McClung
• Vector GIS Class Project, Spring 2008

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Arkansas Activities
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Tick - Host Associations
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Rickettsia spp.
(Walker 2007)
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Rickettsia spp.
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Urban regions of transmission
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Objective

• To create a tool for veterinarians for
  identifying the potential risk of exposure to
  Rickettsia spp. for residents of Benton and
  Washington Counties.
• Using pathogen detection data and layers for
  Benton and Washington Counties, we created a map
  which allowed us to identify areas with the
  highest risk of pathogen transmission. This data
  can be used by veterinarians to make vaccination
  recommendations.

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MethodsTick Collections
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GIS Model
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All Ticks Collected
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GIS Model
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Positive/Negative Ticks
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GIS Model
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Positive Tick Density
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GIS Model
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Positive Tick Trend
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GIS Model
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Risk Buffer Around Positive Ticks
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GIS Model
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Risk Buffers for Fayetteville
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DANGER ZONE!!!!!
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High Risk Neigborhood Example
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Discussion

• With Our Maps We Can
• Make a list of populated areas at high risk
• Send these lists to local veterinarians for
  recommendations
• LIVE database
• Future
• Other pathogens
• Other areas
• Let imagination go wild!

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Data Sources

• Arkansas Highway and Transportation Department.
  2006. CITY LIMITS (polygon). AR Highway and
  Transportation. Vector digital data.
  http//www.geostor.arkansas.gov/Portal/DiscoverySe
  rvlet?commandviewmetadataoutside'true'uuidCE
  05C857-3256-47BA-B6EC-EF21DC59C23D,
  http//www.geostor.arkansas.gov/Portal/FME/fmeDown
  load.jsp?useroutsidetrueoLayerADMIN.CITY_LIMI
  TS_AHTD_2005,Vector,Polygon, http//www.geostor.ar
  kansas.gov
• U.S. Bureau of the Census, TIGER/Line. 2005.
  COUNTIES 2005 FIRST EDITION (polygon). U.S.
  Bureau of the Census, TIGER/Line. Vector digital
  data. http//www.geostor.arkansas.gov/Portal/Disco
  veryServlet?commandviewmetadataoutside'true'uu
  id71A0D7B6-A8E0-4974-8CEE-7C9840D1330E,
  http//www.geostor.arkansas.gov/Portal/FME/fmeDown
  load.jsp?useroutsidetrueoLayerADMIN.COUNTIES_
  TIGER_2005v1,Vector,Polygon, http//www.geostor.ar
  kansas.gov
• U.S. Bureau of the Census, TIGER/Line. 2005.
  ROADS ALL 2005 FIRST EDITION (line). U.S. Bureau
  of the Census, TIGER/Line. Vector digital data.
  http//www.geostor.arkansas.gov/Portal/DiscoverySe
  rvlet?commandviewmetadataoutside'true'uuid24
  0DC681-87DC-44F3-A05D-710E91FE17AA,
  http//www.geostor.arkansas.gov/Portal/FME/fmeDown
  load.jsp?useroutsidetrueoLayerTRANSP.ROADS_AL
  L_TIGER_2005v1,Vector,Polyline,
  http//www.geostor.arkansas.gov
• Trout, R. T. 2008. TICK LOCATIONS AND THEIR
  PATHOGENS IN NORTHWEST ARKANSAS.. unpublished
  data.