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Creator:: Temesgen, Hailemariam, Barrett, Tara M., and Latta, Greg
Abstract:: Cavity trees contribute to diverse forest structure and wildlife habitat. For a given stand, the size and density of cavity trees indicate its diversity, complexity, and suitability for wildlife habitat. Size and density of cavity trees vary with stand age, density, and structure. Using Forest Inventory and Analysis (FIA) data...
Resource Type:: Article
Full Text:: Imputation Methods for Western Oregon and Washington Forests Hailemariam Temesgen, Tara M. Barrett and Greg

Creator:: Latta, Gregory, Temesgen, Hailemariam, and Barrett, Tara M.
Abstract:: Regional estimation of potential forest productivity is important to diverse applications, including biofuels supply, carbon sequestration, and projections of forest growth. Using PRISM (Parameter-elevation Regressions on Independent Slopes Model) climate and productivity data measured on a grid of 3356 Forest Inventory and Analysis plots in Oregon and Washington, we evaluated...
Resource Type:: Article
Full Text:: Pacific Northwest forests using climate variables Gregory Latta, Hailemariam Temesgen, and Tara M

Creator:: Eskelson, Bianca N.I., Barrett, Tara M., and Temesgen, Hailemariam
Abstract:: When a temporal trend in forest conditions is present, standard estimates from paneled forest inventories can be biased. Thus methods that use more recent remote sensing data to improve estimates are desired. Paneled inventory data from national forests in Oregon and Washington, U.S.A., were used to explore three nearest neighbor...
Resource Type:: Article
Full Text:: Mean Annual Change to Estimate Current Forest Attributes Bianca N. I. Eskelson, Tara M. Barrett and

Creator:: Eskelson, Bianca N.I., Temesgen, Hailemariam, and Barrett, Tara M.
Abstract:: Information on current forest condition is essential to assess and characterize resources and to support resource management and policy decisions. The 1998 Farm Bill mandates the US Forest Service to conduct annual inventories to provide annual updates of each state's forest. In annual inventories, the sample size of I year...
Resource Type:: Article
Full Text:: Temesgen, and Tara M. Barrett Abstract: Information on current forest condition is essential to assess and

Creator:: Eskelson, Bianca N.I., Temesgen, Hailemariam, and Barrett, Tara M.
Abstract:: Cavity tree and snag abundance data are highly variable and contain many zero observations. We predict cavity tree and snag abundance from variables that are readily available from forest cover maps or remotely sensed data using negative binomial (NB), zero-inflated NB, and zero-altered NB (ZANB) regression models as well as...
Resource Type:: Article
Full Text:: , Hailemariam Temesgen, and Tara M. Barrett Abstract: Cavity tree and snag abundance data are highly variable

Creator:: Eskelson, Bianca N. I., Temesgen, Hailemariam, and Barrett, Tara M.
Abstract:: Many growth and yield simulators require a stand table or tree-list to set the initial condition for projections in time. Most similar neighbour (MSN) approaches can be used for estimating stand tables from information commonly available on forest cover maps (e.g. height, volume, per cent canopy cover and species composition)....
Resource Type:: Article

Creator:: Barrett, Tara M., Latta, Greg, Hennon, Paul E., Eskelson, Bianca N.I., and Temesgen, Hailemariam
Abstract:: Dwarf mistletoes (Arceuthobium species) influence many processes within forested ecosystems, but few studies have examined their distribution in relation to climate. An analysis of 1549 forested plots within a 14.5 million ha region of southeast Alaska provided strong indications that climate currently limits hemlock dwarf mistletoe (Arceuthobium tsugense (Rosendahl) G.N....
Resource Type:: Article
Full Text:: changing climate: Tsuga heterophylla and Arceuthobium tsugense in Alaska Tara M. Barrett, Greg Latta, Paul

Creator:: Barrett, Tara M., Latta, Greg, Hennon, Paul E., Eskelson, Bianca N.I., and Temesgen, Hailemariam
Abstract:: Dwarf mistletoes (Arceuthobium species) influence many processes within forested ecosystems, but few studies have examined their distribution in relation to climate. An analysis of 1549 forested plots within a 14.5 million ha region of southeast Alaska provided strong indications that climate currently limits hemlock dwarf mistletoe (Arceuthobium tsugense (Rosendahl) G.N....
Resource Type:: Article
Full Text:: heterophylla and Arceuthobium tsugense in Alaska Tara M. Barrett, Greg Latta, Paul E. Hennon, Bianca N.I

Creator:: Eskelson, Bianca N.I., Temesgen, Hailemariam, Lemay, Valerie, Barrett, Tara M., Crookston, Nicholas L., and Hudak, Andrew T.
Abstract:: Almost universally, forest inventory and monitoring databases are incomplete, ranging from missing data for only a few records and a few variables, common for small land areas, to missing data for many observations and many variables, common for large land areas. For a wide variety of applications, nearest neighbor (NN)...
Resource Type:: Article
Full Text:: databases BIANCA N. I. ESKELSON1, HAILEMARIAM TEMESGEN1, VALERIE LEMAY2, TARA M. BARRETT3, NICHOLAS L

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