American holly (Ilex opaca) species page

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These include:

Forest Type maps,

State/Region level analysis

Potential movement of species centers
(NOT SPECIES SPECIFIC)

Predictors used in modelling. These include:

predictor maps

predictor importance scores

predictor values and ranks
(NOT SPECIES SPECIFIC)

Maps of Species Importance Values and Little's Range Boundaries

Maps showing potential changes in Species Importance Values according to 3 climate change models and 2 emission scenarios

Maps of environmental drivers of Species Importance Values according to Regression Trees

Species Importance Values plotted to climate/soil/elevation niche space with option to view IV maps

Aerial and point statistics of mean center distributions according to Species Importance Values

Summary maps of potential Importance Value changes

Maps showing patches of top 10% of Species Importance Values based on moving window analysis

Maps showing potential changes in patches of top 10% of Species Importance Values based on moving window analysis

Statistics and boxplots of area weighted Importance Values, ranks, predictor importance scores and actual predictor values

Table of potential changes in area weighted Importance Value and occupancy

The reliability of the model as assessed from the combined outputs of Regression Trees, Bagging Trees and RandomForest Models.

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Species Information

Family: Aquifoliaceae
Guild: persistent, slow-growing understory tolerant
Functional Lifeform: small evergreen tree

Life History and Disturbance Response

External Species Links

Silvics Manual: Click here for American holly

Plant Photos: Photos of the tree in USDA Plants Database

Google Earth: View current and modelled American holly

Research Products (IMPORTANT: Read this first)

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