Dr. John A. Kershaw, Jr. CF, RPF, Forest Mensurationist

“The really great forester combines technical knowledge with idealism; even though he may be mistaken in detail, he must be enough of a thinker to fathom the national needs of the future.” - Theodore S. Woolsey, Jr. (Riding the Chuck Line)

New Publication Available

January 14th, 2010


Flaherty, L., Quiring, D., and Kershaw, J.A., Jr. 2010. Post-Gall Induction Performance of Adelges Abietis (L.) (Homoptera: Adelgidae) is Influenced by Clone, Shoot Length and Density of Colonizing Gallicolae. Ecological Entomology. 35:9-15.

 


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New Publication Accepted

January 14th, 2010

Dick, A., Kershaw, J.A., Jr., and MacLean, D.A. In Press. Spatial tree mapping using photography. Northern Journal of Applied Forestry.


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New Publication Available

August 25th, 2009


Weiskittel, A.R., Kershaw, J.A., Jr., Hofmeyer, P.V., and Seymour, R.S. 2009. Species differences in total and vertical distribution of branch- and tree-level leaf area for the five primary conifer species in Maine, USA. Forest Ecology and Management. 258:1695-1703.


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New Publication Accepted

July 14th, 2009


Weiskittel, A.R., Kershaw, J.A., Jr., Hofmeyer, P.V., and Seymour, R.S. In Press. Species differences in total and vertical distribution of branch- and tree-level leaf area for the five primary conifer species in Maine, USA. Forest Ecology and Management.


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New Publication Available

July 5th, 2009


Kershaw, J.A., Jr., Benjamin, J., and Weiskittel, A. 2009. Approaches for modeling vertical distribution of maximum knot size in black spruce: A comparison of fixed and mixed effects nonlinear models. Forest Science. 55:230:237.


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Graduate Research Assistantship Available

May 7th, 2009

Funding is available for a highly motivated student to work on a cutting edge forest mensuration project  combining digital photography with laser technology. The system has the capability to implement angle count sampling (prism sampling) and measure upper stem diameters. Student projects include: system development and calibration; double sampling applications, and ratio sampling applications. Interested candidates should contact me - include a CV and statement of research interests.


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New Publication Accepted

April 6th, 2009


Benjamin, J. Kershaw, J.A. Jr., Weiskittel, A.R., Chui, Y.H.,  and Zhang, T. In Press. External knot size and frequency in black spruce trees from three initial spacings. Submitted to The Forestry Chronicle.


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New Publication Available

April 6th, 2009

Jeffrey G. Benjamin, Ying Hei Chui, and John A. Kershaw Jr. 2009. Circular Distribution of Branches from Plantation
Grown Black Spruce in Ontario. Northern Journal of Applied Forestry. 26:15-20.


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New Publication Available

March 23rd, 2009


Morrissey, R.C., Gauthier, M.-M., Kershaw, J.A., Jacobs, D.F., Seifert, J.R., and Fischer, B.C. 2009. Grapevine (Vitis spp.) dynamics in association with manual tending, physiography, and host tree associations in temperate deciduous forests. Forest Ecology and Management. 257:1839–1846.


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New Publication Accepted

February 16th, 2009


Kershaw, J.A., Jr., Benjamin, J., and Weiskittel, A. In Press. Approaches for modeling vertical distribution of maximum knot size in black spruce: A comparison of fixed and mixed effects nonlinear models . Forest Science.



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