Publications – Gordon Nigh

This researcher no longer works for the B.C. Government.

Publications

Research papers listed in order of publication date.

• 2016 to 2020
• 2011 to 2015
• 2006 to 2010
• 2000 to 2005
• 1999 and earlier

2016 to 2020:

2018:

• Chiu, C.-M., C.-T. Chien, G. Nigh, and C.-H.Chung. 2018. Influence of climate on tree mortality in taiwania (Taiwania cryptomerioides) stands in Taiwan. N. Z. J. For. Sci. 48: 6.
• Nigh, G.D. 2018. A reformulated site index model for white spruce (Picea glauca) for the interior of British Columbia. Prov. B.C., Victoria, B.C. Res. Rep. 32.
• Nigh, G.D. 2018. Leader damage in white spruce site trees in northeastern British Columbia. Prov. B.C., Victoria, B.C. Tech. Rep. 113.

2017:

• Nigh, G.D. 2017. Revised site index models for western redcedar for coastal British Columbia. Prov. B.C., Victoria, B.C.Tech. Rep. 105.
• Nigh, G. 2017. The effect of leader damage on white spruce (Picea glauca) site tree height growth and site index. Can. J. For. Res. 47: 1153-1160.
• Nigh, G. 2017. The effect of leader damage on lodgepole pine site tree height growth. For. Chron. 93: 32-37.
• Nigh, G.D. 2017. Total and merchantable volume equations for common tree species in British Columbia: by region and biogeoclimactic zone. Prov. B.C., Victoria, B.C. Tech. Rep. 106.
• Nigh, G. 2017. Development of a lodgepole pine site index model with the grounded-Generalized Algebraic Difference Approach (g-GADA). Prov. B.C., Victoria, B.C. Res. Rep. 31.

2016:

• Chiu, C.-M., C.-T. Chien, G.D. Nigh, and C.-H. Chung. 2016. Climate and height growth of taiwania (Taiwania cryptomerioides) and Taiwan incense-cedar (Calocedrus formosana) in Taiwan. For. 89: 364-372.
• Chiu, C.-M., C.-T. Chien, and G. Nigh. 2016. Density-dependent mortality in Taiwania cryptomerioides and Chamaecyparis formosensis stands in Taiwan. Cogent Environ. Sci. 2: 1148301.
• Nigh, G.D. 2016. Effect of Time Trends in Tree Dominance on Site Height and Site Index. Nigh, G.D. 2016. Effect of time trends in tree dominance on site height and site index. Prov. B.C., Victoria, B.C. Exten. Note 117.

2011 to 2015:

2015:

• Chiu, C.-M., C.-T. Chien, and G. Nigh. 2015. A comparison of three taper equation formulations and an analysis of the slenderness coefficient for Taiwan incense cedar (Calocedrus formosana). Aust. For. 78: 159-168.
• Nigh, G. 2015. Engelmann spruce site index models: a comparison of model functions and parameterizations. PLoS ONE 10(4): e0124079. doi:10.1371/journal.pone.0124079.
• Nigh, G.D. and J. de Jong. 2015. Validating the site productivity layer for British Columbia with equivalence testing. Prov. B.C., Victoria, B.C. Tech. Rep. 085.
• Publication: Nigh, G.D. 2015. Years-to-breast-height model for Engelmann spruce in the Engelmann Spruce - Subalpine Fir biogeoclimatic zone. Prov. B.C., Victoria, B.C. Exten. Note 115.

2014:

• de Montigny, L. and G. Nigh. 2014. Growth, mortality, and damage in fast growing Douglas-fir stands in coastal British Columbia twenty years after heavy juvenile thinning and moderate pruning at age nine. Northwest Sci. 88: 206-218.
• Nigh, G.D. 2014. An Errors-in-Variable Model with Correlated Errors: Engelmann Spruce Growth Intercept Models. Prov. B.C., Victoria, B.C. Tech. Rep. 084.
• Nigh, G. 2014. Mitigating the effects of climate change on lodgepole pine site height in British Columbia, Canada, with a transfer function. For. 87: 377-387.
• de Montigny, L. and G. Nigh. 2014. Growth, mortality, and damage in fast growing Douglas-fir stands in coastal British Columbia twenty years after heavy juvenile thinning and moderate pruning at age nine. Northwest Sci. 88: 206-218.

2013:

• Nigh, G. 2013. Evaluating Douglas-fir and western hemlock volume growth in response to thinning and fertilisation. N. Z. J. For. Sci. 43:9. Available at: http://www.nzjforestryscience.com/content/43/1/9.
• Nigh, G.D. 2013. Estimating Inventory Attributes for the Lakes Timber Supply Area from Remeasured Vegetation Resources Inventory Ground Data. Prov. B.C., Victoria, B.C. Tech. Rep. 078.
• Chung, J.-D., C.-M. Chiu, G. Nigh, C.-T. Chien, and C.C. Ying. 2013. Genetic variation in wood property and growth of Taiwania (Taiwania Cryptomerioides Hayata). Silvae Genetica 62: 265-276.

2012:

• Nigh, G. and W. Smith. 2012. Effect of climate on lodgepole pine stem taper in British Columbia, Canada. For. 85: 579-587.
• Nigh, G. 2012. A biophysical model for estimating site index for the major commercial tree species in British Columbia. Prov. B.C., Victoria, B.C. Tech. Rep. 073.
• Nigh, G. 2012. Calculating empirical best linear unbiased predictors (EBLUPs) for nonlinear mixed effects models in Excel/Solver. For. Chron. 88(3):340-344 (10.5558/tfc2012-061)
• Ni, C. and G.D. Nigh. 2012. An analysis and comparison of predictors of random parameters demonstrated on planted loblolly pine diameter growth prediction. For. 85: 271-280.
• O'Neill, G. and G. Nigh. 2012. Provenance Trials Help Refine Forest Growth Models. TICtalk 11(1):6-7.

2011:

• Chung, J-D., G. Nigh, C-T. Chien, and C.C. Ying. 2011. Genetic variation and tree improvement of Konishii fir (Cunninghamia lanceolata (Lamb.) Hook. var. konishii) in Taiwan. Silvae Genetica 60(5):196-205 
• de Montigny, L. and G. Nigh. 2011. Effects of Planting Density on Yellow-cedar and Western Redcedar Growth. B.C. Min. For. Range, For. Sci. Prog., Victoria, B.C. Exten. Note 101.
• Ni, C. and G. Nigh. 2011. Assessing the effect of measurement error in age on dominant height and site index estimates. Can. J. For. Res. 41(8):1698-1709.
• O'Neill, G.A. and G. Nigh. 2011. Linking population genetics and tree height growth models to predict impacts of climate change on forest production. Global Change Biol. 17(10):3208-3217.

2006 to 2010:

2010:

• Stoehr, M., K. Bird, G. Nigh, J. Woods, and A. Yanchuk. 2010. Realized genetic gains in coastal Douglas-fir in British Columbia: Implications for growth and yield projections. Silvae Genetica 59(5):223-233. 
• Nigh, G.D. 2010. Amabilis fir height-age and growth intercept models for British Columbia. B.C. Min. For. Range, For. Sci. Prog., Victoria, B.C. Exten. Note 94.
• Nigh, G.D. 2010. An analysis of the sibec site index estimates for Douglas-fir in the CWHxm2/01 site series. B.C. Min. For. Range, For. Sci. Prog., Victoria, B.C. Exten. Note 96.
• Antos, J.A., R. Parish, and G.D. Nigh. 2010. Effects of neighbours on crown length of Abies lasiocarpa and Picea engelmannii in two old-growth stands in British Columbia. Can. J. For. Res. 40(4):638-647.
• Chiu, C-M., G. Nigh, C-T. Chien, and C.C. Ying. 2010. Diameter distribution models for thinned taiwania (Taiwania cryptomerioides) plantations. Australian Forestry 73(1):3-11
• Chiu, C-M., G. Nigh, C-T. Chien, and C.C. Ying. 2010. Growth patterns of plantation-grown Taiwania cryptomerioides following thinning. Australian Forestry 73(4):246-253 
• Coombes, T., A. Bernard, and G. Nigh. 2010. Forest access road widths in the Lakes Timber Supply Area. BC Journal of Ecosystems and Management 11(1&2):84-90. 
• de Montigny, L.E. and G.D. Nigh. 2010. Effects of planting density on yellow and red cedar growth. B.C. Min. For. Range, For. Sci. Prog., Victoria, B.C.
• Nigh, G. 2010. A closer look at site index - biogeoclimatic site series correlations: Douglas-fir in the Coastal Western Hemlock Zone, xm2 variant, 01 site series. For. Chron. 86(4):477-483.

2009:

• Chung, J.D., C.T. Chien, G. Nigh, and C.C. Ying.  2009.  Genetic variation in growth curve parameters of Konishii fir (Cunninghamia lanceolata (Lamb.) Hook. var konishii.  Silvae Genetica  58: 1-10.
• Nigh, G.D. 2009. Amabilis fir height-age and growth intercept models for British Columbia. B.C. Min. For. Range, For. Sci. Prog., Victoria, B.C. Res. Rep. 30.
• de Montigny, L.E. and G.D. Nigh. 2009. Silviculture treatments for ecosystem management in the Sayward (STEMS): establishment report for STEMS 2, Elk Bay. B.C. Min. For. Range, For. Sci. Prog., Victoria, BC. Tech. Rep. 049.
• Nigh, G.D., K.D. Thomas, K. Yearsley, and J. Wang.  2009.  Site dependent height-age models for paper birch in British Columbia.  Northwest Sci.  83: 253-261.
• Chung, J.D., C.T. Chien, G. Nigh, and C.C. Ying.  2009.  Genetic variation in growth curve parameters of Konishii fir (Cunninghamia lanceolata (Lamb.) Hook. var konishii.  Silvae Genetica  58: 1-10.

2008:

• Parish, R., G.D. Nigh, and J.A. Antos. 2008. Allometry and size structure of trees in two ancient snow forests in coastal British Columbia. Can. J. For. Res. 38(2):278-288.
• Antos, J.A., R. Parish, and G.D. Nigh. 2008. Growth patterns prior to mortality of mature Abies lasiocarpa in old-growth subalpine forests of southern British Columbia. For. Ecol. Manage. 255(5-6):1568-1574.
• Nigh, G.D., J.A. Antos, and R. Parish. 2008. Density and distribution of advance regeneration in mountain pine beetle killed lodgepole pine stands of the Montane Spruce zone of southern British Columbia. Can. J. For. Res. 38(11):2826-2836.
• Nigh, G.D., J.A. Antos, and R. Parish. 2008. Tools to help forest managers with regeneration decisions about beetle-killed stands in the Montane Spruce zone of the Merritt Timber Supply Area. B.C. Min. For. Range, Res. Br., Victoria, B.C. Exten. Note 83.

2007:

• de Montigny, L. and G. Nigh. 2007. Density Frontiers for Even-Aged Douglas-fir and Western Hemlock Stands in Coastal British Columbia. For. Sci. 53(6):675-682. 
• O'Neill, G., G. Nigh, T. Wang, and P.K. Ott. 2007. Growth response functions improved by accounting for nonclimatic site effects. Can. J. For. Res. 37(12):2724-2730.
• de Montigny, L., G. Nigh, and R. Archer. 2007. MPB stewardship research strategy implementation framework. B.C. Min. For., Res. Br., Victoria, B.C. 28 pp.
• de Montigny, L.E. and G.D. Nigh. 2007. Growth and Survival of Douglas-fir and Western Redcedar Planted at Different Densities and Species Mixtures. B.C. Min. For. Range, Res. Br., Victoria, B.C. Tech. Rep. 044.
• Nigh, G.D. and R. Everett.  2007.  Years-to-stump-height and years-to-breast-height model for Interior Douglas-fir, western larch, and ponderosa pine.  Northwest Sci.  81: 293-304.

2006:

• Nigh, G.D. and P.J. Martin. 2006. Selecting a method to estimate site index. B.C. Min. For. and Range, Res. Br. Victoria BC. Land Manag. Handb. Field Guide Insert 12.
• Nigh, G.D., L.E. de Montigny, M.A. Eng, and R. Archer. 2006. Development of a Research Strategy for Mountain Pine Beetle Issues Associated with Forest Stewardship Division Functions. B.C. Min. For. Range, Res. Br., Victoria, B.C. Tech. Rep. 034.
• Nigh, G.D. 2006. Impact of Climate, Moisture Regime, and Nutrient Regime on the Productivity of Douglas-Fir in Coastal British Columbia, Canada. Climatic Change 76(3-4):321-337.

2000 to 2005:

2005:

• Nigh, G.D., B.A. Love, and A. Prasad. 2005. Linking ecologically based productivity information to timber supply analysis units using site series sampling. BC Journal of Ecosystems and Management 6(1):22-32. 

2004:

• Nigh, G.D. and B.A. Love. 2004. Predicting Crown Class in Three Western Conifer Species. Can. J. For. Res. 34(3):592-599. 
• Nigh, G. 2004. A comparison of fitting techniques for ponderosa pine height-age models in British Columbia. Ann. For. Sci. 61(7):609-615.
• Nigh, G.D. 2004. Growth intercept and site series-based estimates of site index for white spruce in the boreal white and black spruce biogeoclimatic zone. B.C. Min. For., Res. Br., Victoria, B.C. Tech. Rep. 013.
• Nigh, G.D. 2004. Juvenile height models for lodgepole pine and interior spruce: validation of existing models and development of new models. B.C. Min. For., Res. Br., Victoria, B.C. Res. Rep. 25.
• Nigh, G.D., C.C. Ying, and H. Qian. 2004. Climate and Productivity of Major Conifer Species in the Interior of British Columbia, Canada. For. Sci. 50(5):659-671 

2003:

• Mah, S. and G.D. Nigh. 2003. SIBEC site index estimates in support of forest management in British Columbia. B.C. Min. For., Victoria, Res. Br., B.C. Tech. Rep. 004.
• Nigh, G., B. Love, and K. Thomas. 2003. A Comparison of the time required for two methods of selecting site trees in juvenile stands. N. J. Appl. For. 20(3):101-103. 
• Nigh, G.D. and M.G. Mitchell. 2003. Development of Height-Age Models for Estimating Juvenile Height of Coastal Douglas-fir in British Columbia. West. J. Appl. For. 18(3):207-212. 

2002:

• Nigh, G.D., P. Krestov, and K. Klinka. 2002. Height growth of black spruce in British Columbia. For. Chron. 78(2):306-313.
• Nigh, G.D. and K.R. Polsson. 2002. Splicing height curves. B.C. Min. For., Res. Br., Victoria, B.C. Exten. Note 60.
• Nigh, G.D. 2002. Growth intercept, years-to-breast-height, and juvenile height growth models for ponderosa pine. B.C. Min. For., Res. Br., Victoria, B.C. Tech. Rep. 002. http://www.for.gov.bc.ca/hfd/pubs/Docs/Tr/Tr002.htm 
• Nigh, G.D. 2002. Site index conversion equations for mixed trembling aspen and white spruce stands in northern British Columbia. Silva Fennica 36(4):789-797.
• Cieszewski, C.J. and G.D. Nigh. 2002. A dynamic equation for a published Sitka spruce site-dependent height-age model. For. Chron. 78(5):690-694. 
• Publication: Nigh, G.D. and M.G. Mitchell. 2002. Height Growth Models for Western Larch in British Columbia. West. J. Appl. For. 17(2):66-74. *The authors are Brisco, D., K. Klinka, and G. Nigh.* 

2001:

• Nigh, G.D., P.V. Krestov, and K. Klinka. 2001. Trembling Aspen Height-Age Models for British Columbia. Northwest Sci. 76(3):202-212. 
• Brisco, D., K. Klinka, and G. Nigh.  2001.  New height growth models for western larch in British Columbia.  Forest Sciences Dept., University of British Columbia, Vancouver, B.C.  Scientia Silvica Exten. Series No. 33
• Nigh, G.D. 2001. Species-independent height-age models for British Columbia. For. Sci. 47(2):150-157. 
• Martin, P., A. Nemec, and G. Nigh.  2001.  Behaviour of site index estimates when a growth intercept model is applied in surveys of regenerated stands.  B.C. Min. For., For. Pract. Br., Victoria, B.C.  Silv. Note 28.
• Nigh, G.D. and K. Klinka. 2001. Growth intercept models for black spruce. B.C. Min. For., Res. Br., Victoria, B.C. Exten. Note 57.
• Nigh, G.D. and P.J. Martin. 2001. A method to assess the performance of growth intercept models in British Columbia. For. Chron. 77(3):491-499.
• Martin, P., A. Nemec, and G. Nigh.  2001.  Behaviour of site index estimates when a growth intercept model is applied in surveys of regenerated stands.  B.C. Min. For., For. Pract. Br., Victoria, B.C.  Silv. Note 28.
• Brisco, D., K. Klinka, and G. Nigh.  2001.  New height growth models for western larch in British Columbia.  Forest Sciences Dept., University of British Columbia, Vancouver, B.C.  Scientia Silvica Exten. Series No. 33

2000:

• Ying, C.C., G. Nigh, and H. Qian. 2000. Quantification of site- and species-specific wood production and carbon sequestration in relation to climate change – lodgepole pine, interior spruce, and interior Douglas-fir. In: 16^avo Taller de Biologia Forestal de America Del Norte, Merida, Yucatan, Mexico, July 16-21, 2000.
• Ying, C.C., G. Nigh, and H. Qian. 2000. Quantification of site- and species-specific wood production and carbon sequestration in relation to climate change – lodgepole pine, interior spruce, and interior Douglas-fir. In: 16^avo Taller de Biologia Forestal de America Del Norte, Merida, Yucatan, Mexico, July 16-21, 2000.
• Nigh, G.D. and G.J. Kayahara. 2000. Site Index Conversion Equations for Western Redcedar and Western Hemlock. Northwest Sci. 74(2):146-150. 
• Nigh, G.D. 2000. Western redcedar site index models for the interior of British Columbia. B.C. Min. For., Res. Br., Victoria, B.C. Res. Rep. 18.
• Ying, C.C., G. Nigh, and H. Qian. 2000. Quantification of site- and species-specific wood production and carbon sequestration in relation to climate change – lodgepole pine, interior spruce, and interior Douglas-fir. In: 16^avo Taller de Biologia Forestal de America Del Norte, Merida, Yucatan, Mexico, July 16-21, 2000.
• Mitchell, K.J., K.R. Polsson, C.M. Di Lucca, G.D. Nigh, S.E. Grout, and S.C. Stearns-Smith. 2000. SiteTools version 3.2. Online. Ministry of Forests, Research Branch, Victoria B.C. 
• Brunner, A. and G.D. Nigh. 2000. Light absorption and bole volume growth of individual Douglas-fir trees. Tree Physiol. 20(5-6):323-332.
• Mitchell, K.J., M. Stone, S.E. Grout, K.R. Polsson, C.M. Di Lucca, G.D. Nigh, J.W. Goudie, J.N. Stone, A.F. Nussbaum, A.D. Yanchuk, S.C. Stearns-Smith, and R.P. Brockley. 2000. TIPSY version 3.0. Online. Ministry of Forests, Research Branch, Victoria B.C. July 2000. 
• Nigh, G.D. and B.A. Love. 2000. Juvenile height development in interior spruce stands of British Columbia. West. J. Appl. For. 15(3):117-121. 

1999 and earlier:

1999:

• Nigh, G.D. and B.A. Love. 1999. A model for estimating juvenile height of lodgepole pine. For. Ecol. Manage. 123(2-3):157-166.
• Nigh, G.D. and B.A. Love. 1999. How well can we select undamaged site trees for estimating site index?. Can. J. For. Res. 29(12):1989-1992.
• Nigh, G.D. 1999. Growth intercept models and tables for British Columbia - coastal species: third edition. B.C. Min. For., Res. Br., Victoria, B.C. Land Manage. Handb. Field Guide Insert 9.
• Nigh, G.D. 1999. Growth intercept models and tables for British Columbia - interior species: third edition. B.C. Min. For., Res. Br., Victoria, B.C. Land Manage. Handb. Field Guide Insert 10.
• Nigh, G.D. 1999. Revised growth intercept models for coastal western hemlock, sitka spruce, and interior spruce. B.C. Min. For., Res. Br., Victoria, B.C. Exten. Note 37.
• Nigh, G.D. 1999. Smoothing top height estimates from two lodgepole pine height models. B.C. Min. For., Res. Br., Victoria, B.C. Exten. Note 30.
• Nigh, G.D. 1999. Years to breast height and green-up age models based on a juvenile height model for lodgepole pine. B.C. Min. For., Res. Br., Victoria, B.C. Exten. Note 31.
• Nigh, G.D. and P.V. Krestov. 1999. Site index conversion equations for mixed black spruce-lodgepole pine stands. B.C. Min. For., Res. Br., Victoria, B.C. Exten.
• Nigh, G.D., D. Brisco, and D. New. 1999. Growth intercept models for western larch. B.C. Min. For., Res. Br., Victoria, B.C. Exten. Note 38.

1998:

• Mitchell, K.J., K.R. Polsson, G.D. Nigh, C.M. Di Lucca, S.E. Grout, and S.C. Stearns-Smith. 1998. SiteTools version 3.1. Ministry of Forests, Research Branch, Victoria B.C.
• Mitchell, K.J., M. Stone, S.E. Grout, K.R. Polsson, C.M. Di Lucca, G.D. Nigh, J.W. Goudie, J.N. Stone, A.F. Nussbaum, and S.C. Stearns-Smith. 1998. TIPSY version 2.1. Ministry of Forests, Research Branch, Victoria B.C.
• Mitchell, K.J., M. Stone, S.E. Grout, K.R. Polsson, C.M. Di Lucca, G.D. Nigh, J.W. Goudie, J.N. Stone, A.F. Nussbaum, and S.C. Stearns-Smith. 1998. TIPSY version 2.1. Ministry of Forests, Research Branch, Victoria B.C.
• Nigh, G.D. 1998. A system for estimating height and site index of western hemlock in the interior of British Columbia. For. Chron. 74(4):588-596.
• Nigh, G.D. 1998. Prediction intervals for estimates of site index based on ecosystem type. Environ. Manage. 22(2):197-202.
• Nigh, G.D. 1998. Site Index Adjustments for Old-growth Stands Based on Veteran Trees. B.C. Min. For., Res. Br., Victoria, B.C. Work. Pap. 36. 17 p.
• Nigh, G.D. 1998. Site index conversion equations for mixed western hemlock - amabilis fir stands. B.C. Min. For., Res. Br., Victoria, B.C. Exten. Note 26.
• Nigh, G.D. and P.J. Courtin. 1998. Height models for red alder (Alnus rubra Bong.) in British Columbia. New Forests 16(1):59-70.

1997:

• Nigh, G.D. 1997. A growth intercept model for coastal Douglas-fir. B.C. Min. For., Res. Br., Victoria, B.C. Res. Rep. 10. 
• Nigh, G.D. 1997. A Sitka spruce height-age model with improved extrapolation properties. For. Chron. 73(3):363-369.
• Nigh, G.D. 1997. Early height growth and site index of lodgepole pine under wet and dry soil moisture regimes in British Columbia. West. J. Appl. For. 12(1):5-8. 
• Nigh, G.D. 1997. Identifying and modelling the spatial distribution dynamics of regenerating lodgepole pine. B.C. Min. For., Res. Br., Victoria, B.C. Res. Rep. 12.
• Nigh, G.D. 1997. Interior Douglas-fir growth intercept models. B.C. Min. For., Res. Br., Victoria, B.C. Exten. Note 12.
• Nigh, G.D. 1997. Revised growth intercept models for lodgepole pine: comparing northern and southern models. B.C. Min. For., Res. Br., Victoria, B.C. Exten. Note 11.
• Nigh, G.D. and B.A. Love. 1997. Site index adjustment for old-growth coastal western hemlock stands in the Kalum forest district. B.C. Min. For., For. Sci. Prog., Victoria, B.C. Work. Pap. 27.

1996:

• Nigh, G.D. 1996. A variable growth intercept model for sitka spruce. B.C. Min. For., Res. Br., Victoria, B.C. Exten. Note 03.
• Nigh, G.D. 1996. A variable growth intercept model for spruce in the sub-boreal spruce and engelmann spruce-subalpine fir biogeoclimatic zones of British Columbia. B.C. Min. For., Res. Br., Victoria, B.C. Res. Rep. 05.
• Nigh, G.D. 1996. Growth intercept models for species without distinct annual branch whorls: western hemlock. Can. J. For. Res. 26(8):1407-1415.
• Nigh, G.D. and V. Sit. 1996. Validation of forest height-age models. Can. J. For. Res. 26(5):810-818.
• Nigh, G.D. 1996. Identification and Simulation of the Spatial Pattern of Juvenile Lodgepole Pine in the Sub-Boreal Spruce Biogeoclimatic Zone, Stuart Dry Warm and Babine Moist Cold Variants. Res. Br., B.C. Min. For. and For. Can., Victoria, B.C. FRDA Rep. 244.
• Nigh, G.D. 1996. Interim validation of the western hemlock growth intercept model. B.C. Min. For., Res. Br., Victoria, B.C. Exten. Note 04.

1995:

• Nigh, G.D. 1995. Compatibility improvements and bias reduction in height-age models. B.C. Min. For., Res. Br., Victoria, B.C. Res. Rep. 03. 
• Nigh, G.D. 1995. Site index conversion equations for mixed sitka spruce / western hemlock stands. B.C. Min. For., Res. Br., Victoria, B.C. Exten. Note 02.
• Nigh, G.D. 1995. Site index conversion equations for mixed species stands. B.C. Min. For., Res. Br., Victoria, B.C. Res. Rep. 01.
• Nigh, G.D. 1995. The geometric mean regression line: a method for developing site index conversion equations for species in mixed stands. For. Sci. 41(1):84-98. 
• Nigh, G.D. 1995. Variable growth intercept models for lodgepole pine in the sub-boreal spruce biogeoclimatic zone, British Columbia. B.C. Min. For., Res. Br., Victoria, B.C. Res. Rep. 02.