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Publications by H.J. Barclay

85 records.

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Accuracy in population estimation: a methodological consideration
Li, Chao; Barclay, H.J.; Hans, H.; Liu, J.; Klos, R.; Carlson, G.
Year: 2010    Catalog ID: 31727
Available from: Northern Forestry Centre
CFS Availability: Print (free), PDF (request by e-mail)
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Probability models to facilitate a declaration that an exotic insect species has not yet invaded an area
Barclay, H.J.; Humble, L.M.
Year: 2009    Catalog ID: 29409
Available from: Pacific Forestry Centre
CFS Availability: Print (free)

Available from the Journal's Web site.
DOI: 10.1007/s10530-008-9331-1
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Equilibrium forest age structure: Simulated effects of random wild fires, fire control, and harvesting
Barclay, H.J.; Schivatcheva, R.K.; Li, Chao
Year: 2009    Catalog ID: 30088
Available from: Pacific Forestry Centre
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Effects of fire return rates on traversability of lodgepole pine forests for mountain pine beetle: Implications for sustainable forest management
Barclay, H.J.; Schivatcheva, R.K.; Li, Chao; Benson, L.
Year: 2009    Catalog ID: 30089
Available from: Pacific Forestry Centre
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Effect of commercial thinning on within-stand microclimate and fine fuel moisture conditions in a mature lodgepole pine stand in southeastern British Columbia
Whitehead, R.J.; Russo, G.; Hawkes, B.C.; Taylor, S.W.; Brown, B.N.; Armitage, O.B.; Barclay, H.J.; Benton, R.A.
Year: 2008    Catalog ID: 29063
Available from: Pacific Forestry Centre
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Comparison of spatially explicit forest landscape fire disturbance models
Li, Chao; Hans, H.; Barclay, H.J.; Liu, J.; Carlson, G.; Campbell, D.
Year: 2008    Catalog ID: 28085
Available from: Northern Forestry Centre
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Available from the Journal's Web site.
DOI: 10.1016/j.foreco.2007.07.022
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Effect of a spaced thinning in mature lodgepole pine on within-stand microclimate and fine fuel moisture content
Whitehead, R.J.; Russo, G.; Hawkes, B.C.; Taylor, S.W.; Brown, B.N.; Barclay, H.J.; Benton, R.A.
Year: 2006    Catalog ID: 26362
Available from: Pacific Forestry Centre
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Effects of fire size and frequency and habitat heterogeneity on forest age distribution
Barclay, H.J.; Li, Chao; Hawkes, B.C.; Benson, L.
Year: 2006    Catalog ID: 26310
Available from: Pacific Forestry Centre
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Effects of fire return rates on traversability of lodgepole pine forests for mountain pine beetle and the use of patch metrics to estimate traversability
Barclay, H.J.; Li, Chao; Benson, L.; Taylor, S.W.; Shore, T.L.
Year: 2006    Catalog ID: 26243
Available from: Pacific Forestry Centre
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Procedures for declaring pest free status
Barclay, H.J.; Hargrove, J.W.; Clift, A.; Meats, A.
Year: 2005    Catalog ID: 25978
Available from: Pacific Forestry Centre
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Mathematical Models for the Use of Sterile Insects
Barclay, H.J.
Year: 2005    Catalog ID: 25979
Available from: Pacific Forestry Centre
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Effects of fire return rates on traversability of lodgepole pine forests for mountain pine beetle (Coleoptera: Scolytidae) and the use of patch metrics to estimate traversability
Barclay, H.J.; Li, Chao; Benson, L.; Taylor, S.W.; Shore, T.L.
Year: 2005    Catalog ID: 25840
Available from: Pacific Forestry Centre
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Lodgepole pine forest age class dynamics and susceptibility to mountain pine beetle attack
Li, Chao; Barclay, H.J.; Hawkes, B.C.; Taylor, S.W.
Year: 2005    Catalog ID: 25521
Available from: Northern Forestry Centre
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Simulation of historical and current fire regimes in central Saskatchewan
Li, Chao; Barclay, H.J.; Liu, J.; Campbell, D.
Year: 2005    Catalog ID: 25263
Available from: Northern Forestry Centre
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Probability models to facilitate a declaration of pest-free status, with special reference to tsetse (Diptera: Glossinidae)
Barclay, H.J.; Hargrove, J.W.
Year: 2005    Catalog ID: 25224
Available from: Pacific Forestry Centre
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Simulation of interactions among fire, mountain pine beetle and lodgepole pine forest
Li, Chao; Barclay, H.J.
Year: 2004    Catalog ID: 25054
Available from: Pacific Forestry Centre
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Scaling-up an autoregressive time-series model (of spruce budworm population dynamics) changes its qualitative behavior.
Fleming, R.A.; Barclay, H.J.; Candau, J.-N.
Year: 2002    Catalog ID: 24424
Available from: Great Lakes Forestry Centre
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Abundance and diversity of soil nematodes in chronosequences of coastal Douglas-fir forests on Vancouver Island, British Columbia
Panesar, T.S.; Marshall, V.G.; Barclay, H.J.
Year: 2001    Catalog ID: 25635
Available from: Pacific Forestry Centre
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Available from the Journal's Web site.
DOI: 10.1078/0031-4056-00080
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Fire disturbance patterns and forest age structure
Li, Chao; Barclay, H.J.
Year: 2001    Catalog ID: 19550
Available from: Northern Forestry Centre
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Distribution of leaf orientations in six conifer species
Barclay, H.J.
Year: 2001    Catalog ID: 18132
Available from: Pacific Forestry Centre
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The impact of clearcutting and partial harvesting systems on population dynamics of soil nematodes in coastal Douglas-fir forests.
Panesar, T.S.; Marshall, V.G.; Barclay, H.J.
Year: 2000    Catalog ID: 5543
Available from: Pacific Forestry Centre
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Available from the Journal's Web site.
DOI: 10.1078/S0031-4056(04)70079-7
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Relationship of readings from the LI-COR canopy analyzer to total one-sided leaf area index and stand structure in immature Douglas-fir
Barclay, H.J.; Trofymow, J.A.
Year: 2000    Catalog ID: 5474
Available from: Pacific Forestry Centre
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Available from the Journal's Web site.
DOI: 10.1016/S0378-1127(99)00222-4
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Assessing bias from boles in calculating leaf area index in immature Douglas-fir with the LI-COR canopy analyzer
Barclay, H.J.; Trofymow, J.A.; Leach, R.I.
Year: 2000    Catalog ID: 5396
Available from: Pacific Forestry Centre
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Available from the Journal's Web site.
DOI: 10.1016/S0168-1923(99)00091-X
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Conversion of total to projected leaf area index in conifers
Barclay, H.J.; Goodman, D.
Year: 2000    Catalog ID: 5455
Available from: Pacific Forestry Centre
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Long-term response of understory plant species to thinning and fertilization in a Douglas-fir plantation on southern Vancouver Island, British Columbia
He, F.; Barclay, H.J.
Year: 2000    Catalog ID: 5452
Available from: Pacific Forestry Centre
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A population dynamics model for the mountain pine beetle, Dendroctonus ponderosae Hopk. (Coleoptera : Scolytidae)
A population dynamics model for the mountain pine beetle, Dendroctonus ponderosae Hopk. (Coleoptera : Scolytidae)
Safranyik, L.; Barclay, H.J.; Thomson, A.J.; Riel, W.G.
Year: 1999    Catalog ID: 5343
Available from: Pacific Forestry Centre
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Conversion of total leaf area to projected leaf area in lodgepole pine and Douglas-fir
Barclay, H.J.
Year: 1998    Catalog ID: 4911
Available from: Pacific Forestry Centre
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Soil nematodes in successional stages of Douglas-fir forests
Panesar, T.S.; Marshall, V.G.; Barclay, H.J.
Year: 1998    Catalog ID: 5101
Available from: Pacific Forestry Centre
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Trapping mountain pine beetles Dendroctonus ponderosae (Coleoptera: Scolytidae) using pheromone-baited traps: effects of trapping distance
Barclay, H.J.; Safranyik, L.; Linton, D.A.
Year: 1998    Catalog ID: 5160
Available from: Pacific Forestry Centre
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Assessing natural selection in white pine weevils (Pissodes strobi Peck) (Coleoptera: Curculionidae) for overcoming resistance in trees: An evolutionary model
Barclay, H.J.
Year: 1997    Catalog ID: 4896
Available from: Pacific Forestry Centre
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SEIDAM for Forestry: Intelligent fusion and analysis of multi-temporal imaging spectrometer data.
Bhogal, A.S.; Goodenough, D.G.; Charlebois, D.; Matwin, S.; Portigal, F.; Barclay, H.J.; Thomson, A.J.; Niemann, K.O.
Year: 1996    Catalog ID: 21315
Available from: Pacific Forestry Centre
CFS Availability: Not available through the CFS (click for more information).
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Biomass and nutrient element dynamics in Douglas-fir: effects of thinning and nitrogen fertilization over 18 years
Mitchell, A.K.; Barclay, H.J.; Brix, H.; Pollard, D.F.W.; Benton, R.A.; deJong, R.
Year: 1996    Catalog ID: 4270
Available from: Pacific Forestry Centre
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Modelling selection for resistance to methods of insect pest control in combination
Barclay, H.J.
Year: 1996    Catalog ID: 4374
Available from: Pacific Forestry Centre
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Effects of laminated root rot (Phellinus weirii) on Douglas-fir foliar chemistry
Thomson, A.J.; Goodenough, D.G.; Barclay, H.J.; Lee, Y.J.; Sturrock, R.N.
Year: 1996    Catalog ID: 4613
Available from: Pacific Forestry Centre
CFS Availability: Print (free)

Available from the Journal's Web site.
DOI: 10.1139/x26-160
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Models for mating disruption by means of pheromone for insect pest control
Barclay, H.J.; Judd, G.J.R.
Year: 1995    Catalog ID: 4256
Available from: Pacific Forestry Centre
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Response of young Douglas-fir to urea fertilizer applied on and off snow
Marshall, V.G.; Barclay, H.J.
Year: 1994    Catalog ID: 3425
Available from: Pacific Forestry Centre
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The carbon budget model
Barclay, H.J.
Year: 1993    Catalog ID: 25547
Available from: Pacific Forestry Centre
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Lodgepole pine response to nitrogenous fertilizers applied on and off snow, and to associated damage by small mammals
Marshall, V.G.; Barclay, H.J.; Hetherington, E.
Year: 1992    Catalog ID: 3142
Available from: Pacific Forestry Centre
CFS Availability: Print (free)
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Combining methods of insect pest control: partitioning mortality and predicting complementarity
Barclay, H.J.
Year: 1992    Catalog ID: 3147
Available from: Pacific Forestry Centre
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Modelling the effects of population aggregation on the efficiency of insect pest control
Barclay, H.J.
Year: 1992    Catalog ID: 3148
Available from: Pacific Forestry Centre
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Cost of reproduction in Douglas-fir
El-Kassaby, Y.A.; Barclay, H.J.
Year: 1992    Catalog ID: 3271
Available from: Pacific Forestry Centre
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Annual rates and elemental concentrations of litter fall in thinned and fertilized Douglas-fir
Trofymow, J.A.; Barclay, H.J.; McCullough, K.
Year: 1991    Catalog ID: 3065
Available from: Pacific Forestry Centre
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Combining pheromone-baited and food-baited traps for insect pest control: effects of control by parasitoids
Barclay, H.J.
Year: 1991    Catalog ID: 3070
Available from: Pacific Forestry Centre
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Combining pheromone-baited and food-baited traps for insect pest control: effects of developmental period
Barclay, H.J.; Haniotakis, G.E.
Year: 1991    Catalog ID: 3071
Available from: Pacific Forestry Centre
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Combining methods of pest control: minimizing cost during the control program
Barclay, H.J.; Li, Chao
Year: 1991    Catalog ID: 3072
Available from: Pacific Forestry Centre
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Uncertainties associated with the release of agents for autocidal control
Barclay, H.J.
Year: 1990    Catalog ID: 2973
Available from: Pacific Forestry Centre
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A sterile release model for control of a pest with two life stages under predation
Barclay, H.J.; Van den Driessche, P.
Year: 1990    Catalog ID: 2974
Available from: Pacific Forestry Centre
CFS Availability: Print (free)
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A conceptual model of spruce beetle population dynamics
A conceptual model of spruce beetle population dynamics
Safranyik, L.; Simmons, C.S.; Barclay, H.J.
Year: 1990    Catalog ID: 2978
Available from: Pacific Forestry Centre
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Growth and mortality in managed Douglas-fir: relation to a competition index
Barclay, H.J.; Layton, C.R.
Year: 1990    Catalog ID: 3038
Available from: Pacific Forestry Centre
CFS Availability: Print (free)
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Pest control models of combinations of sterile releases and trapping
Barclay, H.J.; Van den Driessche, P.
Year: 1989    Catalog ID: 2865
Available from: Pacific Forestry Centre
CFS Availability: Print (free)

Available from the Journal's Web site.
DOI: 10.1017/S1742758400010249
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Is there an optimal sex ratio for insect mass rearing
Fitz-Earle, M.; Barclay, H.J.
Year: 1989    Catalog ID: 2867
Available from: Pacific Forestry Centre
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Models for combining methods of pest control: food-baited and pheromone-baited traps containing either insecticide or chemosterilant
Barclay, H.J.
Year: 1988    Catalog ID: 2743
Available from: Pacific Forestry Centre
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Maximum likelihood estimates of fitness in iteroparous species population replacement experiments using compound chromosomes
Barclay, H.J.; Fitz-Earle, M.
Year: 1988    Catalog ID: 2744
Available from: Pacific Forestry Centre
CFS Availability: Print (free)

Available from the Journal's Web site.
DOI: 10.1139/g88-014
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Combining methods of pest control: complementarity of methods and a guiding principle
Barclay, H.J.
Year: 1987    Catalog ID: 2656
Available from: Pacific Forestry Centre
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Models for pest control: complementary effects of periodic releases of sterile pests and parasitoids
Barclay, H.J.
Year: 1987    Catalog ID: 2657
Available from: Pacific Forestry Centre
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Models for pest control using food-baited traps and either insecticides or chemosterilants
Barclay, H.J.
Year: 1987    Catalog ID: 2658
Available from: Pacific Forestry Centre
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Models for pest control using sex pheromones and chemosterilants
Barclay, H.J.
Year: 1987    Catalog ID: 2659
Available from: Pacific Forestry Centre
CFS Availability: Print (free)
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Models of sterile insect releases for population under attack by parasitoids
Barclay, H.J.
Year: 1987    Catalog ID: 2660
Available from: Pacific Forestry Centre
CFS Availability: Print (free)
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Aboveground nutrient distribution within trees and stands in thinned and fertilized Douglas-fir
Pang, P.C.K.; Barclay, H.J.; McCullough, K.
Year: 1987    Catalog ID: 2843
Available from: Pacific Forestry Centre
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Host-parasitoid dynamics: effects of the position of density dependence
Barclay, H.J.
Year: 1986    Catalog ID: 2543
Available from: Pacific Forestry Centre
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Models of host-parasitoid interactions to determine the optimal instar of parasitization for pest control
Barclay, H.J.
Year: 1986    Catalog ID: 2544
Available from: Pacific Forestry Centre
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Shawn: A model of Douglas-fir ecosystem response to nitrogen fertilization and thinning: a preliminary approach
Shawn: A model of Douglas-fir ecosystem response to nitrogen fertilization and thinning: a preliminary approach
Barclay, H.J.; Hall, T.H.
Year: 1986    Catalog ID: 2635
Available from: Pacific Forestry Centre
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Aboveground biomass distribution within trees and stands in thinned and fertilized Douglas-fir
Barclay, H.J.; Pang, P.C.K.; Pollard, D.F.W.
Year: 1986    Catalog ID: 2636
Available from: Pacific Forestry Centre
CFS Availability: Print (free)

Available from the Journal's Web site.
DOI: 10.1139/x86-080
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Ten-year growth response of a 25 year old and 55 year old Douglas-fir stand to thinning and urea fertilization
Ten-year growth response of a 25 year old and 55 year old Douglas-fir stand to thinning and urea fertilization
Lee, Y.J.; Barclay, H.J.
Year: 1985    Catalog ID: 2520
Available from: Pacific Forestry Centre
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Effects of high levels of fertilization with urea on growth of thinned and unthinned Douglas-fir stands
Barclay, H.J.; Brix, H.
Year: 1985    Catalog ID: 2527
Available from: Pacific Forestry Centre
CFS Availability: Print (free)

Available from the Journal's Web site.
DOI: 10.1139/x85-120
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Fertilization and thinning effects on a Douglas-fir ecosystem at Shawnigan Lake: 12-Year growth response
Fertilization and thinning effects on a Douglas-fir ecosystem at Shawnigan Lake: 12-Year growth response
Barclay, H.J.; Brix, H.
Year: 1985    Catalog ID: 2528
Available from: Pacific Forestry Centre
CFS Availability: PDF (download)
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A density dependent model of pheromone trapping
Fisher, M.E.; Van den Driessche, P.; Barclay, H.J.
Year: 1985    Catalog ID: 2531
Available from: Pacific Forestry Centre
CFS Availability: Not available through the CFS (click for more information).

Available from the Journal's Web site.
DOI: 10.1016/0040-5809(85)90017-6
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Models of periodic inundation of parasitoids for pest control
Barclay, H.J.; Otvos, I.S.; Thomson, A.J.
Year: 1985    Catalog ID: 2661
Available from: Pacific Forestry Centre
CFS Availability: Print (free)
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The estimation of fitness in iteroparous species during population replacement experiments
Barclay, H.J.
Year: 1984    Catalog ID: 2262
Available from: Pacific Forestry Centre
CFS Availability: Print (free)
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Demographic consequences of monogamy and polygamy for a sterile release program
Barclay, H.J.
Year: 1984    Catalog ID: 2356
Available from: Pacific Forestry Centre
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Pheromone trapping models for pest control: effects of mating patterns and immigration
Barclay, H.J.
Year: 1984    Catalog ID: 2357
Available from: Pacific Forestry Centre
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Pheromone trapping for male annihilation: a density dependent model
Barclay, H.J.; Van den Driessche, P.
Year: 1984    Catalog ID: 2358
Available from: Pacific Forestry Centre
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Effects of urea and ammonium nitrate fertilizer on growth of a young thinned and unthinned Douglas-fir stand
Barclay, H.J.; Brix, H.
Year: 1984    Catalog ID: 2437
Available from: Pacific Forestry Centre
CFS Availability: Print (free)

Available from the Journal's Web site.
DOI: 10.1139/x84-169
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Effects of thinning and urea fertilization on the distribution of area increment along the boles of Douglas-fir at Shawnigan Lake, British Columbia
Thomson, A.J.; Barclay, H.J.
Year: 1984    Catalog ID: 2441
Available from: Pacific Forestry Centre
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A method for estimating fitness and generation time in continuously breeding populations during population replacement trials using compound chromosome strains
Barclay, H.J.
Year: 1983    Catalog ID: 2259
Available from: Pacific Forestry Centre
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Genetic population replacement for insect control: a new method for estimating fitness and generation time of continuously-breeding competing strains
Barclay, H.J.; Fitz-Earle, M.
Year: 1983    Catalog ID: 2260
Available from: Pacific Forestry Centre
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Pheromone trapping models for insect pest control
Barclay, H.J.; Van den Driessche, P.
Year: 1983    Catalog ID: 2261
Available from: Pacific Forestry Centre
CFS Availability: Not available through the CFS (click for more information).

Available from the Journal's Web site.
DOI: 10.1007/BF02528786
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Models for pest control using predator release, habitat management, and pesticide release in combination
Barclay, H.J.
Year: 1982    Catalog ID: 2169
Available from: Pacific Forestry Centre
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The sterile release method with unequal male competitive ability
Barclay, H.J.
Year: 1982    Catalog ID: 2170
Available from: Pacific Forestry Centre
CFS Availability: Print (free)

Available from the Journal's Web site.
DOI: 10.1016/0304-3800(82)90029-1
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An experimental test of life history evolution using Drosophila melanogaster and Hyla regillia
Barclay, H.J.; Gregory, P.T.
Year: 1982    Catalog ID: 2171
Available from: Pacific Forestry Centre
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Fertilization and thinning effects on a Douglas-fir ecosystem at Shawnigan Lake, 9 year growth response
Fertilization and thinning effects on a Douglas-fir ecosystem at Shawnigan Lake, 9 year growth response
Barclay, H.J.; Brix, H.; Layton, C.R.
Year: 1982    Catalog ID: 2245
Available from: Pacific Forestry Centre
CFS Availability: Print (free), PDF (download)
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Models of pheromone release for pest control in which males attract females
Barclay, H.J.
Year: 1982    Catalog ID: 2257
Available from: Pacific Forestry Centre
CFS Availability: Print (free)
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Pest population stability under sterile releases
Barclay, H.J.
Year: 1982    Catalog ID: 2258
Available from: Pacific Forestry Centre
CFS Availability: Print (free)
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Analysis of a sterile insect release model with predation
Harrison, G.W.; Barclay, H.J.; Van den Driessche, P.
Year: 1982    Catalog ID: 2268
Available from: Pacific Forestry Centre
CFS Availability: Print (free)
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Forest biomass and nutrient studies in central Nova Scotia. Part 1
Freedman, B.; Duinker, P.N.; Barclay, H.J.; Morash, R.; Prager, U.
Year: 1982    Catalog ID: 7757
Available from: Atlantic Forestry Centre
CFS Availability: Print (free)
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This may not be a complete list of the author's publications. This list provides the author's publications since he or she joined, or worked in cooperation with, the CFS. When available, another link is provided for periods of work elsewhere.