Search Results - "Gregoire, T. G"

For what applications can probability and non-probability sampling be used? by SCHREUDER, H. T, GREGOIRE, T. G, WEYER, J. P

“…Almost any type of sample has some utility when estimating population quantities. The focus in this paper is to indicate what type or combination of types of…”
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tree crown distribution of hemlock woolly adelgid, Adelges tsugae (Hem., Adelgidae) from randomized branch sampling by Evans, A.M, Gregoire, T.G

“…An exotic insect, the hemlock woolly adelgid, Adelges tsugae Annand (Hem., Adelgidae), is spreading through eastern North America, killing hemlock trees [Tsuga…”
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Sampling methods to estimate foliage and other characteristics of individual trees by Gregoire, Timothy G., Valentine, Harry T., Furnival, George M.

“…The total foliar area or mass of a tree is difficult to measure, as is its bark or cambial area, and various other components of aboveground biomass. A variety…”
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Lidar sampling — Using an airborne profiler to estimate forest biomass in Hedmark County, Norway by Nelson, R., Gobakken, T., Næsset, E., Gregoire, T.G., Ståhl, G., Holm, S., Flewelling, J.

“…An airborne profiling lidar was used to estimate total aboveground dry biomass, a surrogate for aboveground carbon stocks, for all land cover types in Hedmark…”
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Separating the ground and airborne laser sampling phases to estimate tropical forest basal area, volume, and biomass by Nelson, Ross, Oderwald, Richard, Gregoire, Timothy G.

“…Airborne laser profiling data were used to estimate the basal area, volume, and biomass of primary tropical forests. A procedure was developed and tested to…”
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Sampling-Skewed Biological Populations: Behavior of Confidence Intervals for the Population Total by Gregoire, Timothy G., Schabenberger, Oliver

“…Four populations were repeatedly sampled with the aim of examining interval estimation of the cumulative amount, T, of some characteristic that has a…”
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Analysis of Ordinal Data to Detect Population Differences by Gregoire, T. G, Driver, B. L

“…The performance of selected parametric and nonparametric tests of location and scale differences are compared on the basis of sampling results from simulated…”
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Spectral reflectance of Picea rubens (Pinaceae) and Abies balsamea (Pinaceae) needles along an elevational gradient, Mt. Moosilauke, New Hampshire, USA by Richardson, Andrew D., Berlyn, Graeme P., Gregoire, Timothy G.

“…Relationships among elevation, foliar morphology, spectral reflectance, and chlorophyll fluorescence of two co-occurring montane conifers, red spruce (Picea…”
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Sampling methods to estimate stem length and surface area of tropical tree species by Gregoire, Timothy G., Valentine, Harry T.

“…Sampling strategies to provide unbiased estimates of individual tree characteristics have received increased attention in the past decade. Sampling-based…”
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Modelling longitudinal and spatially correlated data: Timothy G Gregoire, David R Brillinger, Peter J Diggle, Estelle Russek-Cohen, William G Warren, Russell D Wolfinger (editors) by Gregoire, T. G

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Estimating biomass and carbon for Gilbertiodendron dewevrei (De Wild) Leonard, a dominant canopy tree of African tropical Rainforest: Implications for policies on carbon sequestration by Umunay, P.M., Gregoire, T.G., Ashton, M.S.

“…•Antithetic and randomized branch are unbiased and cost effective sampling techniques.•Model using basal area and 3-knot cubic spline provides good prediction…”
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Post-flooding disturbance recovery promotes carbon capture in riparian zones by Zhu, Yihong, Liu, Ruihua, Zhang, Huai, Liu, Shaoda, Zhang, Zhengfeng, Yu, Fei-Hai, Gregoire, Timothy G

“…Vegetation, water, and carbon dioxide have complex interactions on carbon mitigation in vegetation–water ecosystems. As one of the major global change drivers…”
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Estimation of Bole Surface Area and Bark Volume with Monte Carlo Methods by Gregoire, T. G., Valentine, H. T., Furnival, G. M.

“…Many attributes of forest trees can be regarded as integrals of some continuous-dimensional characteristic, and thus their estimation is amenable to variance…”
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Consistent Estimation of Site Index Curves Fitted to Temporary Plot Data by Walters, David K., Gregoire, Timothy G., Burkhart, Harold E.

“…Instrumental variable estimation is presented as an alternative to ordinary least squares when only temporary plot data are available to fit site index curves…”
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Canopy height models and airborne lasers to estimate forest biomass : two problems by NELSON, R, JIMENEZ, J, SCHNELL, C. E, HARTSHORN, G. S, GREGOIRE, T. G, ODERWALD, R

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Prediction from an Integrated Regression Equation: A Forestry Application by Gregoire, Timothy G., Schabenberger, Oliver, Kong, Fanzhi

“…Models to depict the tapering of a tree bole abound in the literature of forest science, and such models are widely used in forestry practice. One important…”
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Growth of hybrid fir trees in Connecticut by MERGEN, F, GREGOIRE, T. G

“…Crosses were made between various species of fir in the spring of 1960 and 1962. Progeny of successful crosses were sown in Connecticut in 1962 and measured…”
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Altered Selection Probabilities Caused by Avoiding the Edge in Field Surveys by Gregoire, Timothy G., Scott, Charles T.

“…When field plots are prevented from overlapping the boundary of the tract being sampled, the selection probabilities of population elements near the edge…”
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Sampling strategies for natural resources and the environment: Timothy G. Gregoire, Harry T. Valentine by Gregoire, T. G, Valentine, Harry T

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Using simultaneous regression techniques with individual-tree growth models by Hasenauer, H. (Universitat fur Bodenkulture, Vienna, Austria.), Monserud, R.A, Gregoire, T.G

“…Individual-tree growth models basically consist of a number of equations (e.g., diameter or basal area increment model, height increment model, crown ratio…”
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