Changing Perceptions and Actions in Response to Forest Disturbance by Mountain Pine Beetles in North Central Colorado

2021 ◽  
Author(s):  
Hua Qin ◽  
Hannah Brenkert-Smith ◽  
Jamie Vickery ◽  
Christine Sanders ◽  
Courtney G Flint
Keyword(s):  
Mountain Pine Beetle ◽  
Forest Disturbance ◽  
Household Survey ◽  
The United States ◽  
Forest Disturbances ◽  
Ecological Processes ◽  
North Central ◽  
Mountain Pine ◽  
Forest Ecosystem Management ◽  
Local Residents

Abstract Forest disturbances caused by insects, pathogens, and fire continue to increasingly occur within forests across the United States and around the world. Given the dynamic nature of these forest disturbances and the role played by local residents in risk management, it is valuable to explore how the human experience, attitudes, and behaviors associated with these ecological processes may evolve over time. In this paper, we assess temporal changes in local residents’ perceptions and actions in response to the mountain pine beetle outbreak that affected large swaths of forests in north central Colorado. Through analyses of secondary and household survey data from 2007 and 2018, we note significant changes in these aspects and identify factors consistently associated with individual and community activeness. The study contributes to knowledge of dynamic socioecological considerations of forest disturbances and improves understanding of how social sciences can help to identify opportunities and barriers to effective forest ecosystem management.

EFFECTIVENESS OF TWO PINE OILS FOR PROTECTING LODGEPOLE PINE FROM ATTACK BY MOUNTAIN PINE BEETLE (COLEOPTERA: SCOLYTIDAE)

1985 ◽  
Vol 117 (11) ◽  
pp. 1445-1446 ◽  
Author(s):  
Charles E. Richmond
Keyword(s):  
Bark Beetles ◽  
Pinus Contorta ◽  
Mountain Pine Beetle ◽  
Lodgepole Pine ◽  
The United States ◽  
Western North America ◽  
Residential Areas ◽  
Pine Oil ◽  
Mountain Pine ◽  
Pine Beetle

The mountain pine beetle, Dendroctonus ponderosae Hopkins, is one of the most destructive bark beetles found on pine in western North America (McCambridge et al. 1979), particularly in forests of lodgepole pine, Pinus contorta Douglas var. latifolia (Furniss and Carolin 1977). The treatment registered in the United States for the protection of high-value trees in residential areas and recreational areas is 2% carbaryl applied to the bole of the tree with a hydraulic sprayer. Recently, pine oil, a derivative of paper pulp waste, was found to be an effective non-insecticidal repellent against several species of bark beetles (Nijholt et al. 1981).

Distribution and severity of white pine blister rust and mountain pine beetle on whitebark pine in British Columbia

2000 ◽  
Vol 30 (7) ◽  
pp. 1051-1059 ◽  
Author(s):  
Elizabeth M Campbell ◽  
Joseph A Antos
Keyword(s):  
British Columbia ◽  
Mountain Pine Beetle ◽  
Stand Structure ◽  
The United States ◽  
Whitebark Pine ◽  
White Pine Blister Rust ◽  
White Pine ◽  
Blister Rust ◽  
Mountain Pine ◽  
Pine Beetle

A major decline in the abundance of whitebark pine (Pinus albicaulis Engelm.) has recently occurred in the United States, primarily as a result of white pine blister rust (Cronartium ribicola J.C. Fisch. ex Raben.). However, no information on the status of whitebark pine in British Columbia, Canada, was available. We sampled 54 subalpine stands in British Columbia, examining all whitebark pine trees within plots for evidence of blister rust and mountain pine beetle (Dendroctonus ponderosae Hopk.) damage. About 21% of all whitebark pine stems were dead, and blister rust was the most important agent of mortality. Of all living trees sampled, 27% had obvious blister rust infection (cankers), but actual incidence was suspected of being as high as 44% (using all evidence of blister rust). Blister rust incidence and whitebark pine mortality were significantly related to differences in stand structure and the presence of Ribes spp., but relationships with local climate and site variables were absent or weak. The lack of strong relationships with climate suggests favourable conditions for the spread of the disease throughout most of British Columbia. Very little evidence of mountain pine beetle was found. Overall, the prospects for whitebark pine in British Columbia do not appear good; a large reduction in population levels seems imminent.

Mountain pine beetle, global markets, and the British Columbia forest economy

2009 ◽  
Vol 39 (7) ◽  
pp. 1313-1321 ◽  
Author(s):  
Brant Abbott ◽  
Brad Stennes ◽  
G. Cornelis van Kooten
Keyword(s):  
British Columbia ◽  
Mountain Pine Beetle ◽  
Forest Products ◽  
The United States ◽  
Timber Supply ◽  
Trade Model ◽  
Mountain Pine ◽  
Export Tax ◽  
Pine Beetle ◽  
Near Term

A number of near-term timber supply shocks are projected to impact global forest product markets, particularly mountain pine beetle induced timber reductions, a Russian log export tax, and timber supply increases from plantation forests in the Southern Hemisphere and Sweden. We examined their effect on a number of global jurisdictions using a dynamic global forest products trade model that separates British Columbia (BC) into coastal and interior forest sectors. The results suggest that global increases in plantation timber would have negligible effects on BC log and lumber markets, that the Russian tax would have minor effects on this market, and that the beetle-induced timber supply drop would moderately increase BC prices (primarily log prices). In the United States South, lumber and log prices could rise as a result of the mountain pine beetle, while other shocks will have a negligible impact on prices. Yet, lumber production will fall because log prices will increase substantially more than lumber prices. Japan could be impacted much more than other regions by the Russian tax on log exports. In the absence of export taxes, a beetle-induced timber shortage would cause lumber production in Japan to rise (as Japan can access nearby Russian logs), while the export tax would reduce lumber production because log prices rise disproportionately more than in other regions.

Modeling the effect of changing market conditions on mountain pine beetle salvage harvesting and structural changes in the British Columbia forest products industry

2009 ◽  
Vol 39 (10) ◽  
pp. 1806-1820 ◽  
Author(s):  
Olaf Schwab ◽  
Thomas Maness ◽  
Gary Bull ◽  
Don Roberts
Keyword(s):  
British Columbia ◽  
Mountain Pine Beetle ◽  
Structural Changes ◽  
Forest Products ◽  
Wood Products ◽  
Forest Sector ◽  
Ecological Processes ◽  
Mountain Pine ◽  
Pine Beetle ◽  
Salvage Harvesting

This paper describes the development and implementation of Cambium, an agent-based forest sector model for strategic analysis. This model is designed as a decision-support tool for assessing the effects that changes in product demand and resource inventories can have on the structure and economic viability of the forest sector. Cambium models aggregate product supply as an emergent property of individual companies’ production decisions and stand-level ecological processes. Modeling the forest-products sector as a group of interacting autonomous economic agents makes it possible to include production capacity dynamics and the potential for mill insolvencies as factors in analyzing the effects of market and forest inventory based disturbances. The utility of this model is tested by assessing the impacts of a market downturn in the US forest products market on forest industry structure and mountain pine beetle ( Dendroctonus ponderosae Hopkins) salvage harvesting in British Columbia, Canada. Simulation results indicate a significant medium-term timber supply shortage; reduced stumpage revenues; intensive cost competition among primary wood-products manufacturers; and a large number of insolvencies in the panel, lumber, and pulp sectors.

Characterisation of attacks made by the mountain pine beetle (Coleoptera: Curculionidae) during its endemic population phase

2014 ◽  
Vol 146 (3) ◽  
pp. 271-284 ◽  
Author(s):  
K.P. Bleiker ◽  
M.R. O'Brien ◽  
G.D. Smith ◽  
A.L. Carroll
Keyword(s):  
Host Resistance ◽  
Mountain Pine Beetle ◽  
Allee Effect ◽  
Pupal Stage ◽  
Mate Location ◽  
North Central ◽  
Trade Off ◽  
Mountain Pine ◽  
Pine Beetle ◽  
Endemic Population

AbstractMountain pine beetle (MPB) Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae) attacks and overwhelms the defences of vigorous trees during outbreaks by attacking en masse. Low or endemic populations are regulated by host resistance and restricted to colonising weakened trees, where there is a potential trade off between tree defences and habitat quality. Mountain pine beetle populations are typically in the endemic population phase, but MPB attack behaviour and brood productivity in this phase are poorly understood. We located attacks made by beetles from endemic populations in north-central Alberta, Canada and examined galleries constructed on these trees. The distribution of gallery starts on trees was clustered relative to height on the tree, but not related to aspect on the tree bole. We found no Allee effect associated with mate location as over 99% of galleries were constructed by mated females. Productivity was generally low and brood development rarely reached the pupal stage, with one exception that suggests that endemic populations are capable of rapid increase in certain hosts. Egg galleries constructed by unmated females differed in morphology from galleries created by mated females. To understand the dynamics of this eruptive species, we need to identify the conditions under which endemic populations can persist and periodically increase to densities that result in coordinated mass attacks on healthy trees and lead to outbreaks.

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