Relevant bibliographies by topics / Mountain pine beetles

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Academic literature on the topic 'Mountain pine beetles'

Author: Grafiati
Published: 4 June 2021
Last updated: 13 February 2022

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Journal articles on the topic "Mountain pine beetles"

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Jackson, Peter L., Dennis Straussfogel, B. Staffan Lindgren, Selina Mitchell, and Brendan Murphy. "Radar observation and aerial capture of mountain pine beetle, Dendroctonus ponderosae Hopk. (Coleoptera: Scolytidae) in flight above the forest canopy." Canadian Journal of Forest Research 38, no. 8 (August 2008): 2313–27. http://dx.doi.org/10.1139/x08-066.

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An outbreak of the mountain pine beetle ( Dendroctonus ponderosae Hopk.) in central British Columbia, Canada, has reached an unprecedented size and intensity and has been spreading. The 2005 emergence and subsequent flight of mountain pine beetle was studied using direct observation of emergence, weather radar imagery, and aerial capture. To verify that the daytime, clear-air radar returns seen during this period were indeed generated by airborne mountain pine beetles, aerial sampling in the area covered by the radar was performed using a drogue capture net towed by a single-engine light aircraft. Results verify that airborne mountain pine beetles are being detected by the weather radar and that, during the emergence period, significant numbers of mountain pine beetles can be found at altitudes up to more than 800 m above the forest canopy. An estimate of transport distance indicates that mountain pine beetles in flight above the forest canopy may move 30–110 km·day–1. An estimate of the instantaneous density of mountain pine beetles in flight above the canopy on flight days in 2005 indicate a mean (maximum) density of 4950 (18 600) beetles·ha–1.
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Bentz, Barbara J. "Mountain pine beetle population sampling: inferences from Lindgren pheromone traps and tree emergence cages." Canadian Journal of Forest Research 36, no. 2 (February 1, 2006): 351–60. http://dx.doi.org/10.1139/x05-241.

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Lindgren pheromone traps baited with a mountain pine beetle (Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae, Scolytinae)) lure were deployed for three consecutive years in lodgepole pine stands in central Idaho. Mountain pine beetle emergence was also monitored each year using cages on infested trees. Distributions of beetles caught in pheromone traps and emergence cages were compared. Each year, mountain pine beetle emergence from infested trees occurred within a 30-d period, although beetles were caught in pheromone traps over a period as long as 130 d. A large proportion of the total number of beetles caught in pheromone traps occurred prior to and following peak emergence from infested trees. Beetles caught in pheromone traps during the main emergence period from infested trees had greater whole-body lipids compared to beetles caught early and late in the flight season. Low lipid content of beetles caught before and after the main emergence period could be the result of a long-distance flight caused by fewer sources of pheromone attraction on the landscape and (or) some proportion of reemerged parents in the sample. Results suggest that pheromone traps disproportionately sample mountain pine beetle populations and that natural pheromone sources may influence the number and timing of beetles caught in synthetically baited traps.
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McKee, Fraser R., Dezene P. W. Huber, B. Staffan Lindgren, Robert S. Hodgkinson, and Brian H. Aukema. "Effect of natal and colonised host species on female host acceptance and male joining behaviour of the mountain pine beetle (Coleoptera: Curculionidae) using pine and spruce." Canadian Entomologist 147, no. 1 (April 30, 2014): 39–45. http://dx.doi.org/10.4039/tce.2014.22.

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AbstractThe mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae), outbreak in British Columbia and Alberta, Canada, currently extends over 18.3 million ha of pine forest. The principal host of the insect is lodgepole pine, Pinus contorta var. latifolia Englemann (Pineaceae) although it is a generalist herbivore on pines. Mountain pine beetles do not typically colonise spruce. However, during the current outbreak, several instances of mountain pine beetle attack on interior hybrid spruce, Picea glauca (Moench) Voss×Picea engelmannii Parry ex. Engelmann (Pinaceae) have been noted in areas where severe lodgepole pine mortality has occurred. Occasionally, beetle reproduction within spruce has been successful. Reproductive behaviours of mountain pine beetles reared from pine and spruce, such as female host acceptance and male joining behaviour, were studied on bolts of pine and spruce in laboratory bioassays. Females more readily accepted spruce host material relative to pine. Females that developed in spruce had higher rates of host acceptance of both pine and spruce host material than females that had developed in pine. We interpret these latter results with caution, however, as inference is partially restricted by sourcing viable insects from one spruce in this study. Implications of these findings to the concepts of host adaptation and population dynamics of this eruptive herbivore are discussed.
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Moeck, Henry A., and Clarence S. Simmons. "PRIMARY ATTRACTION OF MOUNTAIN PINE BEETLE, DENDROCTONUS PONDEROSAE HOPK. (COLEOPTERA: SCOLYTIDAE), TO BOLTS OF LODGEPOLE PINE." Canadian Entomologist 123, no. 2 (April 1991): 299–304. http://dx.doi.org/10.4039/ent123299-2.

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AbstractThree field tests were conducted in which fresh lodgepole pine (Pinus contorta Douglas var. latifolia Engl.) material, namely bolts with and without bark, bark only, and freshly tapped resin, were placed in beetle-excluding “greenhouse” cages; empty cages served as controls. Two “window” flight traps per cage, at right angles to each other, caught mountain pine beetles (Dendroctonus ponderosae Hopkins) arriving at the cages. Significantly more mountain pine beetles were trapped at cages baited with bolts and wood only than at empty control cages. Primary attraction in the mountain pine beetle is thus established, in the absence of pheromones and normal visual cues (tree stem silhouette). More beetles were trapped at cages baited with bark only and with resin than at empty control cages, but differences were not significant at p = 0.05. The sex ratio of trapped beetles (4.83 females: 1 male) was more than twice as high as the reported sex ratios of free-flying and emerging beetles.
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Cichowski, Deborah, and Patrick Williston. "Mountain pine beetles and emerging issues in the management of woodland caribou in Westcentral British Columbia." Rangifer 25, no. 4 (May 1, 2005): 97. http://dx.doi.org/10.7557/2.25.4.1775.

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The Tweedsmuir—Entiako caribou (Rangifer tarandus caribou) herd summers in mountainous terrain in the North Tweedsmuir Park area and winters mainly in low elevation forests in the Entiako area of Westcentral British Columbia. During winter, caribou select mature lodgepole pine (Pinus contorta) forests on poor sites and forage primarily by cratering through snow to obtain terrestrial lichens. These forests are subject to frequent large-scale natural disturbance by fire and forest insects. Fire suppression has been effective in reducing large-scale fires in the Entiako area for the last 40—50 years, resulting in a landscape consisting primarily of older lodgepole pine forests, which are susceptible to mountain pine beetle (Dendroctonus ponderosae) attack. In 1994, mountain pine beetles were detected in northern Tweedsmuir Park and adjacent managed forests. To date, mountain pine beetles have attacked several hundred thousand hectares of caribou summer and winter range in the vicinity of Tweedsmuir Park, and Entiako Park and Protected Area. Because an attack of this scale is unprecedented on woodland caribou ranges, there is no information available on the effects of mountain pine beetles on caribou movements, habitat use or terrestrial forage lichen abundance. Implications of the mountain pine beetle epidemic to the Tweedsmuir—Entiako woodland caribou population include effects on terrestrial lichen abundance, effects on caribou movement (reduced snow interception, blowdown), and increased forest harvesting outside protected areas for mountain pine beetle salvage. In 2001 we initiated a study to investigate the effects of mountain pine beetles and forest harvesting on terrestrial caribou forage lichens. Preliminary results suggest that the abundance of Cladina spp. has decreased with a corresponding increase in kinnikinnick (Arctostaphylos uva-ursi) and other herbaceous plants. Additional studies are required to determine caribou movement and habitat use responses to the mountain pine beetle epidemic.
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Safranyik, L., D. A. Linton, and T. L. Shore. "TEMPORAL AND VERTICAL DISTRIBUTION OF BARK BEETLES (COLEOPTERA: SCOLYTIDAE) CAPTURED IN BARRIER TRAPS AT BAITED AND UNBAITED LODGEPOLE PINES THE YEAR FOLLOWING ATTACK BY THE MOUNTAIN PINE BEETLE." Canadian Entomologist 132, no. 6 (December 2000): 799–810. http://dx.doi.org/10.4039/ent132799-6.

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AbstractBark beetles were trapped for two summers in a mature stand of lodgepole pine, Pinus contorta var. latifolia Engelmann (Pinaceae), infested by mountain pine beetle, Dendroctonus ponderosae Hopkins, near Princeton, British Columbia. Columns of flight-barrier traps were suspended next to uninfested live trees and from dead brood trees containing new adult beetles. The brood trees had been treated in the previous year with mountain pine beetle pheromone bait alone or in combination with Ips pini Say (Coleoptera: Scolytidae) pheromone bait and subsequently killed by mountain pine beetles. A total of 3376 individuals from 30 species of Scolytidae were captured in the traps. Most of the species for which lodgepole pine is a nonhost or occasional host were captured in low numbers (one or two specimens). The most abundant species (> 30 individuals) were D. ponderosae, I. pini, Hylurgops porosus LeConte, Pityogenes knechteli Swaine, and Trypodendron lineatum Olivier. The treatments affected captures of mountain pine beetles and I. pini but only in the year when trees were either unbaited or baited simultaneously for mountain pine beetle and I. pini. There were significant differences among the five most abundant species in the mean heights and mean Julian dates of capture. In addition to host condition requirements, these differences reflected partitioning of the food and habitat resource and competitive interactions among species. There was no interaction between treatment and trap height, indicating that treatment did not affect the height distribution of flying beetles.
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Safranyik, L., and D. A. Linton. "THE RELATIONSHIP BETWEEN DENSITY OF EMERGED DENDROCTONUS PONDEROSAE (COLEOPTERA: SCOLYTIDAE) AND DENSITY OF EXIT HOLES IN LODGEPOLE PINE." Canadian Entomologist 117, no. 3 (March 1985): 267–75. http://dx.doi.org/10.4039/ent117267-3.

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AbstractThe relationship between the density of insect holes in the bark (X1) and the density of emerged mountain pine beetles (Y) was investigated in naturally infested lodgepole pine in south-central British Columbia. The density of exit and ventilation holes (Ho) that were present in the bark prior to emergence by mountain pine beetle averaged 10% of all holes present following the emergence period. There was a weak but significant inverse relationship between Ho and both phloem thickness and density of emerged mountain pine beetles. Painting the bark with light-color latex paint did not affect survival or the temporal pattern of emergence by mountain pine beetle but ensured identification and greatly enhanced counting of fresh exit holes. Of the several regression models investigated, the relation between Y and both X1 and X2 (= X1 – Ho) was best fitted by a log-log linear model. A method is suggested for setting limits on the size of exit holes cut by mountain pine beetle in order to exclude from X2 much of the variation caused by exit holes cut by associated insects. A simple mathematical model was developed of the relationship between mean density of exit holes and the density of emerged mountain pine beetles.
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Clark, Erin L., Allan L. Carroll, and Dezene P. W. Huber. "Differences in the constitutive terpene profile of lodgepole pine across a geographical range in British Columbia, and correlation with historical attack by mountain pine beetle." Canadian Entomologist 142, no. 6 (December 2010): 557–73. http://dx.doi.org/10.4039/n10-022.

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AbstractThe mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae), is a destructive insect pest in western Nearctic conifer forests. Currently, British Columbia, Canada, is experiencing the largest recorded outbreak of this insect, including areas that historically have had low climatic suitability for it. We analyzed 26 constitutive resin terpenes in phloem samples from British Columbia lodgepole pine (Pinus contorta) populations to test for differential resistance to mountain pine beetle attack, based upon the likelihood of previous exposure to mountain pine beetle. We assessed sampled trees for number of mountain pine beetle attacks, number of pupal chambers, and tree survival the following spring. Significant differences were found when levels of certain terpenes in lodgepole pine populations that had likely experienced substantial mountain pine beetle infestations in the past were compared with those in populations that likely had not experienced large outbreaks of mountain pine beetle. Although we expected southern pine populations to contain more total terpenes than northern populations, owing to higher historical exposure to the beetle, the converse was found. Northern populations generally had higher levels of constitutive terpenes and beetle attack than southern populations. Because several terpenes are kairomones to the mountain pine beetle and also serve as precursors for the synthesis of pheromones, the lower levels of terpenes expressed by lodgepole pines from the historical range of the mountain pine beetle may render them less chemically perceptible to foraging beetles.
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Pettey, Thomas M., and Charles Gardner Shaw. "Isolation of Fomitopsis pinicola from in-flight bark beetles (Coleoptera: Scolytidae)." Canadian Journal of Botany 64, no. 7 (July 1, 1986): 1507–9. http://dx.doi.org/10.1139/b86-204.

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Isolations of Hymenomycetes on a preferential medium were attempted from preflight pine engraver beetles, Ips pini, and the following in-flight bark beetles: pine engraver beetle, I. pini; western pine beetle, Dendroctonus brevicomis; mountain pine beetle, Dendroctonus ponderosae; and red turpentine beetle, Dendroctonus valens. Thirty pine engraver beetles removed from ponderosa pine slash (preflight) yielded no hymenomycete. However, Hymenomycetes were isolated from 50 of 114 beetles (all species) trapped in flight; Fomitopsis pinicola from 44, and other unidentified suspected Hymenomycetes, from 6. Cryptoporus volvatus was not isolated from any of the in-flight beetles. Since most of these isolates were without clamps (monokaryotic), the beetles may acquire basidiospores after emergence from beetle galleries in coniferous trees as hypothesized previously for the Douglas-fir beetle, Dendroctonus pseudotsugae. The isolation of F. pinicola from all species of in-flight bark beetles indicates that these beetles may be important in the dissemination of this hymenomycete.
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Amman, Gene D., Mark D. McGregor, Richard F. Schmitz, and Robert D. Oakes. "Susceptibility of lodgepole pine to infestation by mountain pine beetles following partial cutting of stands." Canadian Journal of Forest Research 18, no. 6 (June 1, 1988): 688–95. http://dx.doi.org/10.1139/x88-105.

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Thinning stands of lodgepole pine (Pinuscontorta Douglas var. latifolia Engelmann) is thought to increase vigor and thereby reduce susceptibility to mountain pine beetle (Dendroctonusponderosae Hopkins). Partial cut stands of lodgepole in the Kootenai and Lolo National forests, Montana, U.S.A., provided opportunity (i) to determine growth response of 76- to 102-year-old lodgepole pines following thinning and (ii) to test the hypothesis that vigor of residual trees infested and uninfested by beetles does not differ. Lodgepole pine stands receiving different partial cutting prescriptions were sampled. Characteristics measured for trees within the sample were diameter at breast height, grams of stem wood per square metre of foliage, periodic growth ratio, and leaf area. Trees in most treatments showed decreased growth the 1st year following thinning. The 1st year was followed by increased growth during the next 4 years. Of the tree characteristics measured, only dbh was significantly different on both forests between live trees and trees killed by the mountain pine beetle; the latter were larger (P < 0.001). The low amount of mountain pine beetle infestation in all stands in the presence of poor growth response and vigor of residual trees suggests that factors other than tree vigor will regulate mountain pine beetle infestations in recently thinned lodgepole pine stands. We hypothesize change in stand microclimate is the principal factor.
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Dissertations / Theses on the topic "Mountain pine beetles"

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Addison, Audrey L. "Beetles, Fungi and Trees: A Story for the Ages? Modeling and Projecting the Multipartite Symbiosis Between the Mountain Pine Beetle, Dendroctonus ponderosae, and Its Fungal Symbionts, Grosmannia clavigera and Ophiostoma montium." DigitalCommons@USU, 2014. https://digitalcommons.usu.edu/etd/2302.

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As data collection and modeling improve, ecologists increasingly discover that interspecies dynamics greatly affect the success of individual species. Models accounting for the dynamics of multiple species are becoming more important. In this work, we explore the relationship between mountain pine beetle (MPB, Dendroctonus ponderosae Hopkins) and two mutualistic fungi, Grosmannia clavigera and Ophiostoma montium. These species are involved in a multipartite symbiosis, critical to the survival of MPB, in which each species benefits. Extensive phenological modeling has been done to determine how temperature affects the timing of life events and cold-weather mortality of MPB. The fungi have also been closely studied to determine how they interact with MPB and how they differ in terms of virulence, response to temperature, and nutritional benefits to developing beetles. Overall, researchers consider G. clavigera to be the superior mutualist. Beetles developing near G. clavigera are larger, produce more brood, and have higher survival rates. Regarding temperature preferences, G. clavigera is considered “cool-loving,” growing at cooler temperatures than O. montium. These findings lead researchers to wonder 1) why has G. clavigera not displaced iv O. montium from the mutualism (if it is the superior mutualist) and 2) what will happen to the MPB-fungus mutualism in the face of a warming climate. In this work we present two models connecting fungal growth in a tree to predictions of MPB emergence: a stochastic, individual-based model and a deterministic, tree-based model. We begin by exploring whether variability in temperature can act as a stabilizing mechanism and find that temperature variability due to MPB periodically transitioning between different thermal environments is the most likely explanation for the continued presence of both fungi in the mutualism. Using the second model, we parameterize and validate the model using attack and emergence observations of MPB and the fungi they are carrying. In the process, we test several submodels to learn more about specific MPB-fungi interactions. Finally, utilizing information from previous fungal growth experiments, we test and parameterize several growth rate curves using Bayesian techniques to determine whether the inclusion of prior knowledge can lead to more realistic fits.
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Oneil, Elaine E. "Developing stand density thresholds to address mountain pine beetle susceptibility in eastern Washington forests /." Thesis, Connect to this title online; UW restricted, 2006. http://hdl.handle.net/1773/5536.

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Mosher, Brittany Ann. "Avian community response to a mountain pine beetle epidemic." Thesis, Montana State University, 2011. http://etd.lib.montana.edu/etd/2011/mosher/MosherB1211.pdf.

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Recent epidemics of mountain pine beetles (Dendroctonus ponderosae) will fundamentally alter forests of the Intermountain West, impacting management decisions related to fire, logging, and wildlife conservation. We evaluated effects of a recent mountain pine beetle epidemic on site occupancy dynamics of 49 avian and one mammal species in forests dominated by ponderosa pine (Pinus ponderosa) on the Helena National Forest, Montana. Point count data were collected during the avian breeding seasons (May-July) of 2003-06 (pre-epidemic) and again during 2009-10 (during epidemic). We used a Bayesian hierarchical model that accounts for detection probability to obtain occupancy estimates for rare species as well as common ones. We used one model to investigate changes occupancy for all species with respect to the timing of the beetle outbreak and then used a second model to determine whether the relationships seen were associated to changes in snag density. Results show that 30% of species exhibited strong short-term associations between occupancy probability and the occurrence of the beetle epidemic and 12% of species exhibited strong short-term associations between occupancy probability and snag density. Predictions were partially met, as we saw short-term increases in occupancy probability for beetle-foraging species, decreases for some foliage-gleaning canopy insectivores, and intermediate amounts of change for many ground and shrub insectivores. While short-term ecological changes caused by a mountain pine beetle outbreak were associated with changes in occupancy rates for individual species, the overall species richness of native avifauna was unaffected. Though further study over a longer period of time will be necessary to understand the complete dynamics of this disturbance, our results suggest that well-planned salvage operations after beetle outbreaks could also maintain suitable habitat for successfully breeding avian species.
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Strohm, Shaun. "Dispersal of Mountain Pine Beetle and impacts of management." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/44798.

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In this thesis, we use a reaction-diffusion equation with chemotaxis to model the interaction between Mountain Pine Beetle (MPB, Dendroctonius ponderosae), Mountain Pine Beetle pheromones, and susceptible trees. The goal is to understand how the movement and attack of MPB is affected by management activities. We investigate the spatial pattern formation of attack clusters in a system for Mountain Pine Beetle. Mathematical analysis is utilized to discover the spacing between beetle attacks on the susceptible landscape. The model predictions are verified by analyzing aerial detection survey data of Mountain Pine Beetle attack from the Sawtooth National Recreation Area. We find that the distance between Mountain Pine Beetle attack clusters predicted by our model and observed in the Sawtooth National Recreation Area are the same. These results clarify the spatial mechanisms controlling the transition from incipient to epidemic populations and may eventually lead to control measures which protect forests from MPB outbreaks. Our next avenue of investigation is using an experimental study and theoretical work to help understand the effects of habitat fragmentation on the movement of the MPB. The experimental study consists of trap catch data for MPB in different domains of fragmented habitat. We simulate the experimental system using our mathematical model, testing different hypothesis on initial position of MPB emergence and diffusion speed. Our study provides support for the hypothesis that MPB may move faster in harvested landscapes, and that MPB emerge uniformly over the landscape. Finally, we use a multi-year spatially explicit model to test the effectiveness of the management strategies of baiting and tree-removal and prescribed burning. We find that baiting and tree-removal is successful at reducing MPB density and forest impact, as long as MPB emergence densities are not too small. We predict that tree removal without baiting can be more successful than combined baiting and tree removal if the searched area has a large density of MPB. Finally, analysis of our model indicates that prescribed burning can be more effective than clearcutting given certain assumptions about the reproductive output and attractiveness of burned trees.
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Gross, Donovan. "Mountain Pine Beetle Fecundity and Offspring Size Differ Among Lodgepole Pine and Whitebark Pine Hosts." DigitalCommons@USU, 2008. https://digitalcommons.usu.edu/etd/34.

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Whitebark pine (Pinus albicaulis Engelmann) is a treeline species in the central Rocky Mountains. Its occupation of high elevations previously protected whitebark pine from long-term mountain pine beetle outbreaks. The mountain pine beetle, however, is currently reaching outbreaks of record magnitude in high-elevation whitebark pine. We used a factorial laboratory experiment to compare mountain pine beetle (Dendroctonus ponderosae Hopkins) life history characteristics between a typical host, lodgepole pine (Pinus contorta Engelmann), and whitebark pine. We tested the effects of natal host and brood host on beetle fecundity, offspring size, and brood sex-ratio. We reared mountain pine beetles from whitebark pine and from lodgepole pine, and infested half of them into their natal host and half into the other host. Fecundity was greater overall in lodgepole pine brood hosts. Among lodgepole brood hosts, beetles from whitebark pine had greater fecundity. Fecundity was also significantly related to phloem thickness, which was greater in lodgepole pine. Offspring were larger from whitebark brood hosts than from lodgepole, regardless of their parents’ natal host. Finally, sex-ratio was closer to 1:1 in lodgepole than in whitebark brood hosts. We conclude that host species affects life history of mountain pine beetle with consequences for individual beetle fitness.
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Dean, Diana K. "Host utilization by the mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Scolytidae), in mixed stands of limber pine, Pinus flexilis James, and lodgepole pine, Pinus contorta latifolia Engelmann." Laramie, Wyo. : University of Wyoming, 2007. http://proquest.umi.com/pqdweb?did=1404342031&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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Runesson, Ulf Torarind. "Considerations for early remote detection of mountain pine beetle in green-foliaged lodgepole pine." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/31483.

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A general review of the mountain pine beetle (Dendroctonus ponderosae Hopkins) - lodgepole pine (Pinus contorta Dougl.) complex, including previous broad-band remote sensing studies aimed at early detection, is provided. The main emphasis of this thesis is on the utility of waveform analysis, based on in-situ spectroscopy, to successfully differentiate between tree canopies experiencing various degrees of stress. Damage to the tree canopies was both beetle-induced and artificial. In support of the spectroscopy, foliar analysis was performed. In addition, for comparative purposes, large-scale color-infrared photographs were both visually interpreted and measured for dye layer densities. Further, airborne digital broad-band data for the same study site were also acquired and analyzed. Despite significant differences in pigmentation levels and moisture status, the analysis showed poor detection success with both the densitometry and visual interpretation of the color-infrared photographs. This is in sharp contrast with previous studies and is concluded to be attributed to the natural variation from year to year and from site to site. The analysis of the digital airborne data resulted in equally poor differentiation between healthy and damaged tree canopies. The main objective of utilizing waveform analysis to take advantage of anticipated pigmentation reductions in stressed trees yielded very positive results. There were significant blue-shifts in the red-edge positions of currently attacked tree canopies. The data suggest that in a situation where conventional detection means such as those based on photo sensitivity fail, a suitable red-edge threshold can be determined from attacked trees and used to successfully differentiate healthy from currently attacked lodgepole pines.
Forestry, Faculty of
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Pureswaran, Deepa S. "Dynamics of pheromone production and communication in the mountain pine beetle, Dendroctonus ponderosae Hopkins and the pine engraver, Ips pini (Say) (Coleoptera: Scolytidae)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ51452.pdf.

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Braun, David M. "Host colonization behavior of the mountain pine beetle (Dendroctonus ponderosae Hopkins) in thinned and unthinned stands of second-growth ponderosa pine (Pinus ponderosa Laws.) /." Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/5482.

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Moreira-Munoz, Simon. "Timber supply and economic impact of mountain pine beetle salvage strategies." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/697.

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To address the scale mountain pine beetle (MPB) outbreak in British Columbia, salvage has become fully integrated with timber supply strategies. The objective of this thesis is to assess the economic impact of different salvage strategies depending on different attack levels, decay rates, and stakeholder discount rates. The study area is located in N.E. British Columbia where the MPB has not yet reached its peak and where susceptible to attack stands account for 40% of the area. Salvage strategies were modelled with a timber supply model (Woodstock) which uses a linear programming type II optimization approach. Performance of the model was assessed over a range of indicators such as NPV, profit, salvage proportion, species composition, inventory levels, and non-recoverable volume. Sensitivity analyses were conducted on harvest flow, discount rate, and ending inventory. The model was very sensitive to the intensity of attack and less sensitive to the decay level. The high level of attack resulted in large volume losses, mostly as un-salvaged inventory. Although allowable annual cut (AAC) uplifts have an economic benefit, they do not necessarily maximize the salvage of pine. Non-pine species are an important component of the salvage and these species are also essential for the future timber supply. If the objective is to ensure quality and quantity of the future forest, policies have to complement AAC uplifts by strongly encouraging the salvage of mainly pine-leading stands and management options that minimize the “by-catch” of non-pine species and minimize destruction of advanced regeneration during salvage. However, this has an opportunity cost for the private industry where the objective is to maximize profit. If the salvage strategy focuses on decreasing the impact on cash flows, achieving desirable ending inventory levels, avoiding salvage of stands after shelf-life, and reducing impact on non-attack species, then the current harvest level will likely lead to a mid-term timber supply fall-down. Using the fibre for bioenergy production is an alternative if managing for bioenergy can be integrated into harvest operations. However, unlike mill residues, the bioenergy supply has to fully account for harvest and transportation costs of dead wood to the mill.
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Books on the topic "Mountain pine beetles"

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Schmidt, J. M. Hazard rating ponderosa pine stands for mountain pine beetles in the Black Hills. [Fort Collins, Colo.?]: USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, 1994.

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Trostle, Glen E. Distinguishing mated and unmated mountain pine beetles in alcohol-preserved specimens. [Ogden, Utah]: U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1986.

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Bentz, Barbara J. Localized spatial and temporal attack dynamics of the mountain pine beetle in lodgepole pine. Ogden, UT (324 25th St., Ogden 84401): U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1996.

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Bentz, Barbara J. Localized spatial and temporal attack dynamics of the mountain pine beetle in lodgepole pine. Ogden, UT (324 25th St., Ogden 84401): U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1996.

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Bentz, Barbara J. Localized spatial and temporal attack dynamics of the mountain pine beetle in lodgepole pine. Ogden, UT (324 25th St., Ogden 84401): U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1996.

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Amman, Gene D. Mountain pine beetle in ponderosa pine: Effects of phloem thickness and egg gallery density. Ogden, UT: U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1986.

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Schmid, J. M. Microclimate and mountain pine beetles in two ponderosa pine stands in the Black Hills. Fort Collins, CO: Rocky Mountain Forest and Range Experiment Station, U.S. Dept. of Agriculture, 1995.

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Eckberg, T. B. Primary focus trees for the mountain pine beetle in the Black Hills. Fort Collins, CO: Rocky Mountain Forest and Range Experiment Station, U.S. Dept. of Agriculture, 1994.

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Amman, Gene D. The effect of phloem thickness on heterozygosity in laboratory reared mountain pine beetles. Ogden, UT: Intermountain Research Station, 1995.

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Reid, Mary Lynn. Mountain pine beetle dispersal through managed and unmanaged landscapes. Victoria, B.C: Pacific Forestry Centre, 2008.

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Book chapters on the topic "Mountain pine beetles"

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Prentice, Elizabeth W., Hua Qin, and Courtney G. Flint. "Mountain Pine Beetles and Ecological Imaginaries: The Social Construction of Forest Insect Disturbance." In The Human Dimensions of Forest and Tree Health, 77–107. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-76956-1_4.

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Raffa, Kenneth F. "The Mountain Pine Beetle in Western North America." In Dynamics of Forest Insect Populations, 505–30. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4899-0789-9_24.

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Hangay, George, Susan V. Gruner, F. W. Howard, John L. Capinera, Eugene J. Gerberg, Susan E. Halbert, John B. Heppner, et al. "Mountain Pine Beetle, Dendroctonus ponderosae (Coleoptera: Curculionidae, Scolytinae)." In Encyclopedia of Entomology, 2494–97. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6359-6_4710.

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Morrissey, Christy A., and John E. Elliott. "Toxic Trees: Arsenic Pesticides, Woodpeckers, and the Mountain Pine Beetle." In Emerging Topics in Ecotoxicology, 239–65. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-0-387-89432-4_8.

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Régnière, Jacques, Barbara J. Bentz, Jim A. Powell, and Rémi St-Amant. "Individual-Based Modeling: Mountain Pine Beetle Seasonal Biology in Response to Climate." In Simulation Modeling of Forest Landscape Disturbances, 135–64. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-19809-5_6.

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Mattor, Katherine M., Stuart P. Cottrell, Michael R. Czaja, John D. Stednick, and Eric R. V. Dickenson. "The Effects of Mountain Pine Beetle on Drinking Water Quality: Assessing Communication Strategies and Knowledge Levels in the Rocky Mountain Region." In The Human Dimensions of Forest and Tree Health, 355–81. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-76956-1_14.

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Wohl, Ellen. "Mountain Pine Beetles in the Colorado Front Range." In Transient Landscapes: Insights on a Changing Planet, 217–20. University Press of Colorado, 2015. http://dx.doi.org/10.5876/9781607323693.c047.

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Patterson, Patrick B. "“Bug Wood”: Climate Change, Mountain Pine Beetles and Risk in the Southeastern BRITISH COLUMBIA Logging Industry." In Climate Change, Culture, and Economics: Anthropological Investigations, 47–64. Emerald Group Publishing Limited, 2015. http://dx.doi.org/10.1108/s0190-128120150000035003.

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Simon, Gregory L. "Smoke Screen." In Flame and Fortune in the American West. University of California Press, 2016. http://dx.doi.org/10.1525/california/9780520292802.003.0007.

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This chapter presents three cases that illustrate how the underlying drivers of wildland-urban interface (WUI) wildfires frequently mischaracterize the relative role of ecological and social structures of influence. The first case explores the rather unscientific origins of the term firestorm and the credibility it is afforded as a legitimate fire classification through its normative use and acceptance in mainstream fire discourse. This process diminishes the very social and profitable origins of the WUI fire problem and naturalizes these areas as a hazardous by-product of larger, exogenous, and inviolable environmental forces such as climate change. The second case examines recent efforts to study and explain the relationship between mountain pine beetles and fire activity in the western United States. The third case describes the deeply political and protracted process of challenging the economically powerful wood shingle and cedar shake industry. Collectively all three cases illustrate how contemporary discourses on fire tend to truncate the scope of what counts (or is allowed to be brought to the debate table) as an underlying driver of increased fire activity in the West.
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Heavilin, Justin, James Powell, and Jesse A. Logan. "Dynamics of Mountain Pine Beetle Outbreaks." In Plant Disturbance Ecology, 527–53. Elsevier, 2007. http://dx.doi.org/10.1016/b978-012088778-1/50018-2.

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Conference papers on the topic "Mountain pine beetles"

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Lachowsky, Leanna E. "Is sex allocation in mountain pine beetles,Dendroctonus ponderosae, a response to male-biased mortality?" In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.105695.

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Kenarsari, Saeed Danaei, and Yuan Zheng. "A Numerical Study of Fast Pyrolysis of Beetle Killed Pine Trees." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-62991.

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Since 1990s, as a result of unprecedented drought and warm winters, mountain pine beetles have devastated mature pine trees in the forests of western North America from Mexico to Canada. Especially, in the State of Wyoming, there are more than 1 million acres of dead forest now. These beetle killed trees are a source of wildfire and if left unharvested will decay and release carbon back to the atmosphere. Fast pyrolysis is a promising method to transfer the beetle killed pine trees into bio-oils. In the present study, an unsteady state mathematical model is developed to simulate the fast pyrolysis process, which converts solid pine wood pellets into char (solid), bio-oils (liquid) and gaseous products in the absence of oxidizer in a temperature range from 500°C to 1000°C within short residence time. The main goal of the study is to advance the understanding of kinetics and convective and radiative heat transfer in biomass fast pyrolysis process. Conservation equations of total mass, species, momentum, and energy, coupled with the chemical kinetics model, have been developed and solved numerically to simulate fast pyrolysis of various cylindrical beetle killed pine pellets (10 mm diameter and 3 mm thickness) in a reactor (30 mm inside diameter and 50 mm height) exposed to various radiative heating flux (0.2 MW/m2 to 0.8 MW/m2). A fast pyrolysis kinetics model for pine wood that includes competitive path ways for the formation of solid, liquid, and gaseous products plus secondary reactions of primary products has been adapted. Several heat transfer correlations and thermo property models available in the literature have been evaluated and adapted in the simulation. Finite element method is used to solve the conservation equations and a 4th order Runge-Kutta method is used to solve the chemical kinetics. Unsteady-state two dimensional temperature and product distributions throughout the entire pyrolysis process were simulated and the simulated product yields were compared to the experimental data available in the literature. This study demonstrates the importance of the secondary reactions and appropriate convective and radiative modeling in the numerical simulation of biomass fast pyrolysis.
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Rochester, E., J. Ma, B. Lee, and M. Ghaderi. "Mountain Pine Beetle Monitoring with IoT." In 2019 IEEE 5th World Forum on Internet of Things (WF-IoT'19). IEEE, 2019. http://dx.doi.org/10.1109/wf-iot.2019.8767291.

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Fettig, Christopher J. "Mountain pine beetle,Dendroctonus ponderosae (Coleoptera: Curculionidae)." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.92739.

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Heil, Elli M., Alexis K. Navarre-Sitchler, and Richard B. Wanty. "METAL CYCLING IN MOUNTAIN PINE BEETLE IMPACTED WATERSHEDS." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-282889.

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Hansen, E. Matthew. "Carbon cycling in lodgepole pine forests after mountain pine beetle outbreaks." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.95025.

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Progar, Robert A. "Exploiting the chemical ecology of the mountain pine beetle." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.95011.

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Roberts, A., C. Bone, S. Dragicevic, A. Ettya, J. Northrup, and R. Reich. "Mountain pine beetle detection and monitoring: evaluation of airborne imagery." In Remote Sensing, edited by Manfred Ehlers and Ulrich Michel. SPIE, 2007. http://dx.doi.org/10.1117/12.738546.

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Maclauchlan, Lorraine. "Extraordinary events in British Columbia: Chronicling the mountain pine beetle outbreak." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.94987.

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Mercado, Javier E. "Interactions among mountain pine beetle and associated mites and fungi in Colorado." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.95020.

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Reports on the topic "Mountain pine beetles"

1

Graham, Russell T., Lance A. Asherin, Michael A. Battaglia, Terrie Jain, and Stephen A. Mata. Mountain pine beetles: A century of knowledge, control attempts, and impacts central to the Black Hills. Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2016. http://dx.doi.org/10.2737/rmrs-gtr-353.

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Graham, Russell T., Lance A. Asherin, Michael A. Battaglia, Terrie Jain, and Stephen A. Mata. Mountain pine beetles: A century of knowledge, control attempts, and impacts central to the Black Hills. Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2016. http://dx.doi.org/10.2737/rmrs-gtr-353.

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Chojnacky, David C., Barbara J. Bentz, and Jesse A. Logan. Mountain pine beetle attack in ponderosa pine: Comparing methods for rating susceptibility. Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2000. http://dx.doi.org/10.2737/rmrs-rp-26.

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Obedzinski, R. A., J. M. Schmid, S. A. Mata, W. K. Olsen, and R. R. Kessler. Growth of ponderosa pine stands in relation to mountain pine beetle susceptibility. Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 1999. http://dx.doi.org/10.2737/rmrs-gtr-28.

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Tishmack, J., S. A. Mata, and J. M. Schmid. Mountain pine beetle emergence from lodgepole pine at different elevations near Fraser, CO. Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2005. http://dx.doi.org/10.2737/rmrs-rn-27.

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Schmid, J. M., S. A. Mata, and W. C. Schaupp. Mountain pine beetle-killed trees as snags in Black Hills ponderosa pine stands. Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2009. http://dx.doi.org/10.2737/rmrs-rn-40.

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Mata, S. A., J. M. Schmid, and W. K. Olsen. Growth of lodgepole pine stands and its relation to mountain pine beetle susceptibility. Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2003. http://dx.doi.org/10.2737/rmrs-rp-42.

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Amman, Gene D., and Kevin C. Ryan. Using pheromones to protect heat-injured lodgepole pine from mountain pine beetle infestation. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station, 1994. http://dx.doi.org/10.2737/int-rn-419.

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Tilden, Paul E. Remedial treatment of lodgepole pine infested with mountain pine beetle: efficacy of three insecticides. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station, 1985. http://dx.doi.org/10.2737/psw-rn-374.

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Haggart, J. W., C. A. Hutton, M. Pilkington, and M. D. Thomas. The Geological Survey of Canada's Mountain Pine Beetle Project - airborne surveys. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2010. http://dx.doi.org/10.4095/263390.

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