Wilfred Creighton fonds
Wilfred Creighton fonds
Bigelow family fonds
Bigelow family fonds
Photograph of spruce budworm salvage cuts in Cape Breton
Photograph of dead overstory and Abies regeneration, Highlands Road, Cape Breton
Photograph of stored pulpwood, Highlands Road, Cape Breton
Photograph of spruce budworm salvage cuts, Highlands Road, Cape Breton
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of Scirpus caespitosus in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of panoramic view of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of panoramic view of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of Cape Breton highlands after spruce budworm infestation
Photograph of salvage clearcuts of spruce budworm-killed forest in Cape Breton Highlands National Park
Photograph of spruce budworm-killed forest in Cape Breton Highlands National Park
Photograph of spruce budworm-killed forest in Cape Breton Highlands National Park
Photograph of spruce budworm-killed forest in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of salvage clearcuts of spruce budworm-killed forest in Cape Breton Highlands National Park
Photograph of spruce budworm-killed forest in Cape Breton Highlands National Park
Photograph of adult Tetropium fuscum
Photograph of spruce budworm emerging from tree
Photograph of adult Tetropium fuscum
Photograph showing severe resinosis in spruce budworm-infested tree
Photograph showing size scale of spruce budworm exit hole
Photograph showing Canadian Forest Service rearing chambers
Photograph showing larval galleries of spruce budworm in Picea rubens
Transparency showing the area severely infested by the spruce budworm 1909-1981 (in millions of hectares)
Photograph of spruce budworm-killed forest in Cape Breton Highlands National Park
Photograph of salvage clearcuts of spruce budworm-killed forest in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath, Highlands Road, Cape Breton
Photograph of spruce budworm salvage cuts in Cape Breton
Photograph of Balsam fir under competition following spruce budworn infestation
Photograph of Abies balsamea competition, Highlands Road, Cape Breton
Photograph of stored pulpwood, Highlands Road, Cape Breton
Photograph of spruce budworm aftermath, Highlands Road, Cape Breton
Photograph of a moribund stand of Picea glauca, Highlands Road, Cape Breton
Photograph of stored pulpwood, Highlands Road, Cape Breton
Photograph of an upland bog, Highlands Road, Cape Breton
Photograph of Abies balsamea competition, Cape Breton Highlands National Park
