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American mountain-ash (Sorbus americana)

Model Reliability: Low



Current Forest Inventory and Analysis under Current Conditions
Current Forest Inventory and Analysis under Current Conditions
(DISTRIB-II + SHIFT)
HQCL Legend Help
Importance Value
GCM SCENARIO % Area Occ Ave IV Sum IV Future/Current IV
Actual0.70.9164N/A
RFimp1.10.2740.45
CCSM450.70.1280.38
CCSM850.80.1210.29
GFDL450.40.2200.27
GFDL851.20.1200.28
HAD450.90.1250.34
HAD851.80230.31
GCM451.40.1250.34
GCM852.10210.29

Regional Summary Tree Tables

 Cautions  Model Info  FAQ

 Interpretation Guide


American mountain-ash is narrowly distributed (0.5% of area), sparse, and low IV. It is rare in the northern portion of the region. Its low reliable model suggests a large loss in habitat, and its adaptability is also low such that its rating for capability to cope with a changing climate is very poor. Effect of SHIFT is neglibible.



Family:  Rosaceae

Guild:  understory tolerant, slow growing

Functional Lifeform:  small deciduous tree

3.1 -0.23
-1.62 Model Reliability Low

MODFACs
What traits will impact American mountain-ash's ability to adapt to climate change, and in what way?:

 Primary Positive Traits

 Primary Negative Traits

Fire topkill Shade tolerance Environment habitat specificity


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https://www.fs.usda.gov/nrs/atlas/tree/935