Berg, J.
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Change in the periodicity of a cyclical forest defoliator: An indicator of ecosystem alteration in Western Canada
Alfaro, R.I.; vanAkker, L.; Berg, J.; Van Hezewijk, B.H.; Zhang, Qi-Bin; Hebda, R.; Smith, D.; Axelson, J.
Year: 2018
Catalog ID: 39363
Issued by: Pacific Forestry Centre
Availability: PDF (request by e-mail)
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Response of southwest Yukon forests to spruce beetle: 2010 plot re-assessment.
Hawkes, B.C.; Alfaro, R.I.; Waring, V.R.; Berg, J.
Year: 2014
Catalog ID: 35443
Issued by: Pacific Forestry Centre
Availability: PDF (download)
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Periodicity of western spruce budworm in Southern British Columbia, Canada
Alfaro, R.I.; Berg, J.; Axelson, J.
Year: 2014
Catalog ID: 35354
Issued by: Pacific Forestry Centre
Availability: PDF (request by e-mail)