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Woody Debris Volume Depletion Through Decay: Implications for Biomass and Carbon Accounting

Problem Addressed: Underestimation of decay rates

Goal(s)/Objective(s): Develop method for estimating changes in log volume through time

Key Findings: Decaying logs have a collapse ratio that can serve as a surrogate for the volume remaining

Recommendation: Accounting for log volume depletion improves biomass-loss and carbon-accounting methods

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Effect of gap harvesting on epiphytes and bark-dwelling arthropods in the Acadian forest of central Maine

Problem Addressed: Monitoring and research of arboreal arthropods and epiphytes in gap harvests

Goal(s)/Objective(s): How epiphyte and arthropod communities are affected by height and diameter of the stem and bark texture on red maple.

Key Findings: Gap harvesting had the greatest effect on epiphytes and bark dwelling anthropods at the base of the tree.

Recommendation: Gap harvesting has the potential to maintain the arthropod and empiphyte communities in Acadian forest stands.

Downloads: 1

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Applying a Spruce Budworm Decision Support System to Maine: Projecting Spruce-Fir Volume Impacts under Alternative Management and Outbreak Scenarios

Problem Addressed: Antipated Spruce Budworm outbreak on timber supply

Goal(s)/Objective(s): Apply SBWDSS framework and use USDA FIA data to assess potential spruce-for losses from a SBW outbreak

Key Findings: Projections of moderate and severe intensity outbreaks could reduce statewide invtories by 20-30% over next 10 years.

Recommendation: Forestland owners and managers would benefit from conducting a spatially explicit township-by-township analysis of potential SBW impacts

Downloads: 2

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Natural disturbance in an old-growth landscape of northern Maine, USA

Problem Addressed: Forest dynamics and succession in old-growth stand in northern Maine.

Key Findings: The abundance of shade-tolerant saplings, coupled with the absence of stand-replacing disturbance, has maintained canopy dominance by shade-tolerant species.

Downloads: 2

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Dendrochronological reconstruction of spruce budworm outbreaks in northern Maine, USA

Problem Addressed: Detection of major spruce budworm outbreaks in Maine

Goal(s)/Objective(s): Reconstruct the history of major spruce budworm outbreaks in northern interior Maine using host–nonhost dendrochronological analyses, contrast the outbreaks detected in this region to those of eastern Canada; and evaluate the efficacy of using radial growth patterns of small spruce trees for the purpose of detecting outbreaks.

Key Findings: Small-diameter, slow-growing red spruces clearly express the typical budworm signal once ring-width data have been properly standardized.

Downloads: 0

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Effects of thinning on drought vulnerability and climate response in north temperate forest ecosystems

Problem Addressed: Do density reductions confer greater resistance and/or resilience to droughts?

Goal(s)/Objective(s): To assess how long-term forest density management reduced drought vulnerability.

Key Findings: Thinning generally enhanced drought resistance and resilience; however, this relationship showed a pronounced reversal over time in stands maintained at lower tree densities

Recommendation: Results confirm the potential of density management to moderate drought impacts on growth

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Identifying growth releases in dendrochronological studies of forest disturbance

Problem Addressed: Measuring growth releases for reconstructing historical disturbances

Goal(s)/Objective(s): Provide an alternative method for testing growth releases

Key Findings: This absolute-increase method has convenient properties that remedy the shortcomings of the percent-increase method.

Recommendation: No arithmetic method is likely to obviate the need to visually inspect each tree-ring series.

Downloads: 1

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Baxter State Park 2015 Research Summary Report

Problem Addressed: Visitor characteristics, travel behavior, and perceptions of tourism

Goal(s)/Objective(s): To understand how changing weather and climate could impact visitors in the Katahdin region by conducting visitor surveys.

Key Findings: Approximately 50% of respondents for both surveys ranked the expected weather as either very important or important in selecting BSP or the Katahdin region as their destination

Recommendation: Visitors to Baxter State Park and the Katahdin region may be receptive to climate change information, studies conducted in the park, or management actions taken to address the impacts that climate change may have in the area

Downloads: 1

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Factors influencing mountain maple growth

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Nutrient Concentration of Down Woody Debris in Mixedwood Forests in Central Maine, USA

Problem Addressed: Nutrient concentrations pre- and post-harvest pool sizes across down woody debris decay.

Goal(s)/Objective(s): To determine the nutrient concentrations

Key Findings: Softwoods generally had lower nutrient concentrations and higher C:N-ratios than hardwoods; N:P-ratios did not differ between hardwoods and softwoods.

Downloads: 3

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