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This raster dataset shows the sqare feet per acre BA loss to forest cover from spruce aphid, assuming no remediating management, over the 2013-2027 time frame.
The 2012 National Insect and Disease Risk Map (NIDRM) Project integrates 186 individual risk models constructed within a common, consistent framework that accounts for regional variations in forest health conditions. These 186 models are built to portray the expected loss of host basal area for each pair of damage agents and hosts over each unique landscape where they coexist.
This dataset composites the projected BA loss for spruce aphid by tree species host model and then divides the total BA losses from spruce aphid by total basal area. |