Service Description: Aerial and ground surveys are conducted annual. Geospatial data collected with these systems is stored in a National Insect and Disease Survey database. Includes mountain pine beetle and spruce beetle within the Southern Rocky Province, detected in survey years 1997-2022.
I manipulated the spatial dataset to track each reported infestation over time. Following Hart et al, 2015, I label an infestation's "red" stage as the year detected or 1-2 years beforehand, since ADSs typically miss the initial year of infestation. I label the "gray" stage as 1-13 years after detection, and "old" stage as anything older than that.
Because infestations overlap over time, I dissolved the polygons such that each year contains a multipart polygon containing all the red, gray, and old-stage infestations for each beetle.
Service ItemId: 1f1d7615a5b144cbbd7f806d7098bac8
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Max Record Count: 2000
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Spatial Reference: 5070 (5070)
Initial Extent:
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Spatial Reference: 5070 (5070)
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Spatial Reference: 5070 (5070)
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