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Publications by R.C. Johns

11 records.

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Relationships between Pikonema alaskensis larval density and shoot growth and production in young black spruce
Johns, R.C.; Leggo, J.J.; MacLean, D.A.; Quiring, D.T.
Year: 2013    Catalog ID: 34568
Available from: Atlantic Forestry Centre
CFS Availability: PDF (request by e-mail)
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Dietary mixing within the crown of a decidous conifer enhances the fitness of a specialist sawfly
Johns, R.C.; Ozaki, K; Tobita, H
Year: 2012    Catalog ID: 34256
Available from: Atlantic Forestry Centre
CFS Availability: Print (free)
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Temporal variations in abiotic conditions exert little influence on diurnal activity of late-instar spruce budworm larvae on balsam fir
Holmes, S.; Kettela, E.G.; Nigam, P.C.; Heard, S.; Johns, R.C.
Year: 2012    Catalog ID: 33825
Available from: Atlantic Forestry Centre
CFS Availability: Print (free)
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Larval diet prior to and following virus ingestion influence the efficacy of two nucleopolyhedroviruses in whitemarked tussock moth (Orgyia leucostigma) caterpillars
Brodersen, G; Johns, R.C.; Lapointe, R.; Thumbi, D.K.; Thurston, G.S.; Lucarotti, C.J.; Quiring, D.T.
Year: 2012    Catalog ID: 33823
Available from: Atlantic Forestry Centre
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Temporal and spatial variations in microclimate influence the larval foraging behaviors and performance of a conifer-feeding sawfly
Johns, R.C.; Boone, J; Leggo, J.J.; Smith, S.M.; Carleton, D.; Quiring, D.T.
Year: 2012    Catalog ID: 33821
Available from: Atlantic Forestry Centre
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Intra-tree variation in foliage quality drives the adaptive sex-biased foraging behaviors of a specialist herbivore
Johns, R.C.; Quiring, D.T.; Ostaff, D.P.; Bauce, E.
Year: 2010    Catalog ID: 32033
Available from: Atlantic Forestry Centre
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Spatial heterogeneity within an evergreen conifer promotes foliage-age dietary mixing by a specialist herbivore
Johns, R.C.; Quiring, D.T.
Year: 2010    Catalog ID: 31849
Available from: Atlantic Forestry Centre
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Foliage-age mixing within balsam fir increases the fitness of a generalist caterpillar
Johns, R.C.; Quiring, D.T.; Lapointe, R.; Lucarotti, C.J.
Year: 2009    Catalog ID: 31122
Available from: Atlantic Forestry Centre
CFS Availability: Print (free)
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Sex biased intra-tree oviposition site selection and larval foraging behavior of a specialist herbivore
Johns, R.C.; Quiring, D.T.; Ostaff, D.P.
Year: 2009    Catalog ID: 31126
Available from: Atlantic Forestry Centre
CFS Availability: Print (free)
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Sampling procedures for evaluating yellowheaded spruce sawfly density and defoliation in juvenile black spruce stands
Johns, R.C.; Ostaff, D.P.; Quiring, D.T.
Year: 2006    Catalog ID: 31130
Available from: Atlantic Forestry Centre
CFS Availability: Not available through the CFS (click for more information).
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Relationships between yellowheaded spruce sawfly, Pikonema alaskensis, density and defoliation on juvenile black spruce
Johns, R.C.; Ostaff, D.P.; Quiring, D.T.
Year: 2006    Catalog ID: 26216
Available from: Atlantic Forestry Centre
CFS Availability: Print (free), PDF (download)
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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.