Many of the dominant tree species are expected to decline by the end of the century, including black spruce, red spruce, northern-white cedar and balsam fir.

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These are northern species near their southern range limits in New England and northern New York. Multiple forest impact models tend to agree that these species are more likely to decline in suitable habitat and biomass across a range of climate scenarios by the end of the century. Impacts from climate change are projected to be less severe in the northern part of the assessment area, such as in Maine, allowing the dominant species to persist in some areas. Similarly, forests dominated by species with more southerly distributions, such as Atlantic white-cedar, may be less susceptible to changes in climate.