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Click on the images to enlarge.
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By then combining bird numbers with all 5
previous data layers, we provide a WNV risk factor model for all
birds in Arizona. Highest risk areas are below the Mogollon rim,
along the Lower Colorado River, and in parts of SE Arizona. |
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Since the Corvid (crows and jays) group of
birds is so susceptible, we took only birds from this group recorded on
BBS routes. Higher corvid numbers are in red, fewer corvids in
cooler colors. |
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Then, by combining all 5 GIS data
layers (e.g., water, vectors, vegetation) with corvid numbers, we derive
a model that depicts risk potentials to the corvids. The SE
portion of Arizona would experience the greatest potential of WNV
infection for corvids. |
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We then examined the potential of
spread to humans. This GIS data layer (urban interface) is of
present major human concentrations in Arizona. |
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