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The Presettlement Forest and Natural Disturbance Cycle of Northeastern Maine

Problem Addressed: The unknown character of the presettlement forests in New England.

Goal(s)/Objective(s): Estimate the species composition of the presettlement forests, to interpret their successional status, and to provide evidence on the frequency of large-scale natural disturbances.

Key Findings: Severe disturbance was fairly common in the presettlement forest of northern Maine, and data from the land surveys and individual virgin stands likewise indicate that most of the land surface supported climax stands that were frequently all-aged.

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Studies of Aerial Spraying Against the Spruce Budworm in New Brunswick Vs. Techniques for Large-Scale Egg and Defoliation Surveys 1953-55

Problem Addressed: The need for intensive survey coverage of the current spruce budworm outbreak

Goal(s)/Objective(s): Intelligent planning of control or presalvage operations against the spruce budworm.

Downloads: 3

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Wood Supply Analysis by Simulation

Problem Addressed: Wood supply

Goal(s)/Objective(s): Present a method of harvesting and silviculture in forest development.

Key Findings: By forecasting the long-term effects of silviculture and harvesting, it is possible to choose a management strategy to achieve desired benefits from the forest.

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Spruce Budworm Damage Assessment with 35mm Air Photos

Problem Addressed: Spruce budworm

Goal(s)/Objective(s): Assist forest managers at all levels in assessing damage and estimating possible future damage due to spruce budworm activity and provide an index which can be used to rank stands in terms of relative probability of future damage.

Downloads: 1

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Mobility of Forest Insects

Problem Addressed: Forest insects

Goal(s)/Objective(s): Discuss the mobility of forest insects.

Key Findings: Replace where possible current protection strategies with more aggressive strategies that aim at the prevention of pest damage, for the future of forestry in Canada.

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A Study of the Cost of Strip Cutting Black Spruce Stands in Northern Ontario

Problem Addressed: Spruce budworm

Goal(s)/Objective(s): Deal with the impact of strip cutting on planting, layout and supervision, in-strip operations, roadside processing, movement of mean and materials, and roads.

Key Findings: While the effects of strip cutting on silvicultural treatment costs are not included in the terms of reference of this study, discussions with foresters suggest that there may be some.

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Pine Siskin Preys on Egg Masses of the Spruce Budworm, Choristoneura fumiferana (Lepidoptera: Tortricidae)

Problem Addressed: Spruce budworm

Goal(s)/Objective(s): Document bird predation on budworm eggs.

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Proposal to the Maine Department of Conservation: Further Studies on Entomopthora Fungi that Attack Spruce Budworm & Development of Techniques to Determine Population Declines in the Spruce Budworm

Problem Addressed: Spruce budworm

Goal(s)/Objective(s): Two proposals to the Maine Department of Conservation for research involving spruce budworm control

Downloads: 1

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Programme de Pulverisations Aeriennes Contre la Tordeuse des Bourgeons de L’Epinette au Quebec, en 1987

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Summary Report on Studies of the Impact of Insecticides on Forest Ecosystems

Problem Addressed: Insecticide impacts on forest ecosystems

Goal(s)/Objective(s): Examine forest songbird responses to timber stand alterations in Eastern Canada caused by spruce budworm damage over the past decade.

Key Findings: In areas where the budworm-killed conifer component is being replaced by a new forest growth, songbird density is comparable to that in adjacent undamaged stands, but songbird diversity is considerably lower than in nearby unaffected stands.

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