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Zeitschriftenartikel zum Thema "Forest insects – United States"

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Potter, Kevin, Maria Escanferla, Robert Jetton, and Gary Man. "Important Insect and Disease Threats to United States Tree Species and Geographic Patterns of Their Potential Impacts." Forests 10, no. 4 (2019): 304. http://dx.doi.org/10.3390/f10040304.

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Diseases and insects, particularly those that are non-native and invasive, arguably pose the most destructive threat to North American forests. Currently, both exotic and native insects and diseases are producing extensive ecological damage and economic impacts. As part of an effort to identify United States tree species and forests most vulnerable to these epidemics, we compiled a list of the most serious insect and disease threats for 419 native tree species and assigned a severity rating for each of the 1378 combinations between mature tree hosts and 339 distinct insect and disease agents.
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Fei, Songlin, Randall S. Morin, Christopher M. Oswalt, and Andrew M. Liebhold. "Biomass losses resulting from insect and disease invasions in US forests." Proceedings of the National Academy of Sciences 116, no. 35 (2019): 17371–76. http://dx.doi.org/10.1073/pnas.1820601116.

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Worldwide, forests are increasingly affected by nonnative insects and diseases, some of which cause substantial tree mortality. Forests in the United States have been invaded by a particularly large number (>450) of tree-feeding pest species. While information exists about the ecological impacts of certain pests, region-wide assessments of the composite ecosystem impacts of all species are limited. Here we analyze 92,978 forest plots distributed across the conterminous United States to estimate biomass loss associated with elevated mortality rates caused by the 15 most damaging nonnative fo
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Ojha, Santosh K., Kozma Naka, and Luben D. Dimov. "Assessment of Disturbances across Forest Inventory Plots in the Southeastern United States for the Period 1995–2018." Forest Science 66, no. 2 (2019): 242–55. http://dx.doi.org/10.1093/forsci/fxz072.

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Abstract Disturbances of varying frequency and intensity shape the species composition, stand structure, and functions of forests. This study assessed the frequency and distribution of disturbances caused by eight agents (insects, diseases, fire, animals, weather, other vegetation, human, and unknown) in the forests of the southeastern United States from 1995 to 2018. We used data from 88,722 inventory measurements of 33,531 plots from the USDA Forest Inventory and Analysis database to assess disturbance among different forest types and to different canopy strata. Disturbances were detected in
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Gandhi, Campbell, and Abrams. "Current Status of Forest Health Policy in the United States." Insects 10, no. 4 (2019): 106. http://dx.doi.org/10.3390/insects10040106.

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ederal policies related to forestry and forest health (specifically, insects and diseases) have the potential to affect management practices, terms of international and interstate trade, and long-term sustainability and conservation. Our objectives were to review existing federal policies, the role of federal agencies in managing forest health, and guidance for future policy efforts. Since the 1940s, various federal policies relevant to forest health have been established, and several US Department of Agriculture (USDA) agencies have been empowered to assist with prevention, quarantine, detect
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Guo, Qinfeng, Kurt Riitters, and Kevin Potter. "A Subcontinental Analysis of Forest Fragmentation Effects on Insect and Disease Invasion." Forests 9, no. 12 (2018): 744. http://dx.doi.org/10.3390/f9120744.

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The influences of human and physical factors on species invasions have been extensively examined by ecologists across many regions. However, how habitat fragmentation per se may affect forest insect and disease invasion has not been well studied, especially the related patterns over regional or subcontinental scales. Here, using national survey data on forest pest richness and fragmentation data across United States forest ecosystems, we examine how forest fragmentation and edge types (neighboring land cover) may affect pest richness at the county level. Our results show that habitat fragmenta
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Morin, Randall S., Andrew M. Liebhold, Patrick C. Tobin, Kurt W. Gottschalk, and Eugene Luzader. "Spread of beech bark disease in the eastern United States and its relationship to regional forest composition." Canadian Journal of Forest Research 37, no. 4 (2007): 726–36. http://dx.doi.org/10.1139/x06-281.

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Beech bark disease (BBD) is an insect–fungus complex involving the beech scale insect ( Cryptococcus fagisuga Lind.) and one of two canker fungi. Beech scale was introduced to Halifax, Nova Scotia around 1890, presumably with the fungus Neonectria coccinea var. faginata Lohm. The disease has subsequently spread through a large portion of the range of beech. We used historical maps of the extent of the advancing BBD front (defined by presence of scale insects) in North America to estimate its rate of spread as 14.7 ± 0.9 km/year. This estimate did not account for stochastic “jumps” by the scale
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Eckhardt, Lori, Mary Anne Sword Sayer, and Don Imm. "State of Pine Decline in the Southeastern United States." Southern Journal of Applied Forestry 34, no. 3 (2010): 138–41. http://dx.doi.org/10.1093/sjaf/34.3.138.

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Abstract Pine decline is an emerging forest health issue in the southeastern United States. Observations suggest pine decline is caused by environmental stress arising from competition, weather, insects and fungi, anthropogenic disturbances, and previous management. The problem is most severe for loblolly pine on sites that historically supported longleaf pine, are highly eroded, or are not managed. The purposes of this technical note are (1) to describe the symptomology and extent of pine decline in the southeastern United States; (2) to describe its connection with root disease, resource str
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Vindigni, M.A., A.D. Morris, D.A. Miller, and M.C. Kalcounis-Rueppell. "Use of modified water sources by bats in a managed pine landscape." Forest Ecology and Management 258, no. 9 (2009): 2056–61. https://doi.org/10.5281/zenodo.13470855.

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(Uploaded by Plazi for the Bat Literature Project) In eastern North Carolina, USA, intensively managed pine (Pinus spp.) forests, a primary forest type in the Southeastern United States, often are established where water levels are maintained via ditching. In these landscapes, water occurs in numerous linear ditches and several small ponds (heliponds), used by helicopters for the suppression of forest fires. Changes to the physical structure of water sources may be important to bats that use these sources for drinking and foraging. Therefore, we examined bat activity in a managed pine landscap
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Vindigni, M.A., A.D. Morris, D.A. Miller, and M.C. Kalcounis-Rueppell. "Use of modified water sources by bats in a managed pine landscape." Forest Ecology and Management 258, no. 9 (2009): 2056–61. https://doi.org/10.5281/zenodo.13470855.

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(Uploaded by Plazi for the Bat Literature Project) In eastern North Carolina, USA, intensively managed pine (Pinus spp.) forests, a primary forest type in the Southeastern United States, often are established where water levels are maintained via ditching. In these landscapes, water occurs in numerous linear ditches and several small ponds (heliponds), used by helicopters for the suppression of forest fires. Changes to the physical structure of water sources may be important to bats that use these sources for drinking and foraging. Therefore, we examined bat activity in a managed pine landscap
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Vindigni, M.A., A.D. Morris, D.A. Miller, and M.C. Kalcounis-Rueppell. "Use of modified water sources by bats in a managed pine landscape." Forest Ecology and Management 258, no. 9 (2009): 2056–61. https://doi.org/10.5281/zenodo.13470855.

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(Uploaded by Plazi for the Bat Literature Project) In eastern North Carolina, USA, intensively managed pine (Pinus spp.) forests, a primary forest type in the Southeastern United States, often are established where water levels are maintained via ditching. In these landscapes, water occurs in numerous linear ditches and several small ponds (heliponds), used by helicopters for the suppression of forest fires. Changes to the physical structure of water sources may be important to bats that use these sources for drinking and foraging. Therefore, we examined bat activity in a managed pine landscap
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Dissertationen zum Thema "Forest insects – United States"

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Leifer, Nancy Leigh. "Democratic Administration in the United States Forest Service." The University of Montana, 2008. http://etd.lib.umt.edu/theses/available/etd-09202007-123734/.

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Pluralism, the dominant theory in citizen involvement in the United States Forest Service since the 1950s, has prolonged the process of determining the public interest by promoting the use of appeals and lawsuits. The advent of more collaborative public involvement strategies in the past fifteen years offers the opportunity to assess whether participatory democracy offers a better paradigm for determining the public interest. This research focused on four cases of reported successful collaboration in Region One of the Forest Service and involved in-person interviews with 17 Forest Service offi
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Headley, Jeremy Arthur Teeter Lawrence Dale Laband David N. "Changing trade patterns of forest products in the United States." Auburn, Ala., 2007. http://repo.lib.auburn.edu/2007%20Fall%20Theses/Headley_Jeremy_24.pdf.

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Bravo, Ramon. "NGO Influence on Forest Legislation: Experiences from Federal Forest Management in the United States." Thesis, Lund University, 2003. http://hdl.handle.net/10919/71596.

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In the last two decades, a concern on how federal forests in the United States are managed has provoked concerns among different stakeholders, including NGOs. The purpose of this thesis is to contribute to the understanding of NGO influence on forest management legislation. Eight aspects were selected and compared in different study cases referring to legislative proposals dealing with forest management in order to define success criteria for a legislative initiative. The study indicates that the following criteria are particularly important to fulfill in order to influence forest management l
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Ryan, Molly Michelle. "The house that Smokey built the Forest Service management of historic structures in wilderness /." Diss., [Missoula, Mont.] : The University of Montana, 2009. http://etd.lib.umt.edu/theses/available/etd-06252009-083658.

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Uhrig, Peter. "Public Perceptions of the Forest Products Industry in the United States." Virginia Tech, 1999. http://hdl.handle.net/10919/9781.

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Myths prevail among the general public about wood, forest products, and the condition of the environment in the United States. Research shows that most people are unaware about the proliferation of products that they use in their daily lives that are made out of or are derived from wood, about the amount (and shortcomings) of paper recycling in America, and the degree of environmental "friendliness" that wood and non-wood substitutes inherently possess. Students surveyed on Virginia Tech's campus could not state the main purpose of the United States Forest Service, nor could they identify the
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Susaeta, Larrain Andres Ignacio. "Economics of forest biomass based bioenergy in the southern United States." [Gainesville, Fla.] : University of Florida, 2009. http://purl.fcla.edu/fcla/etd/UFE0041024.

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Little, Nathan Shook. "LABORATORY AND FIELD STUDIES ON SUBTERRANEAN TERMITES NATIVE TO THE EASTERN UNITED STATES." MSSTATE, 2010. http://sun.library.msstate.edu/ETD-db/theses/available/etd-03172010-171157/.

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This study investigates modifications to AWPA Standard E18-06 to develop an above-ground field test for subterranean termites native to the eastern United States. AWPA Standard E18-06 was modified in two stages to progressively increase optimum conditions for subterranean termite feeding. Modification II, which incorporated the use of house bricks and feeder strips with a solid ventilated cover, had an increase in termite attack with less variation between tests. This study also investigates the effects of adding antioxidants, both natural and synthetic, and analogues which lack antioxidant pr
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Hirt, Paul Wayne. "A conspiracy of optimism: Sustained yield, multiple use, and intensive management on the national forests, 1945-1991." Diss., The University of Arizona, 1991. http://hdl.handle.net/10150/185680.

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This is a historical study of the intersection of political economy with natural resources management, as played out on the national forests between 1945-1991. Specifically, it focuses on two core national forest management policies; sustained yield and multiple use. These two policy directives represent an attempt by the public and elected officials to apply principles of sustainable development to publicly-owned forest lands, and to ensure that a wide variety of both market and nonmarket forest values are preserved for the benefit of present and future generations. Interest groups, the Fores
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Rogers, Nicole. "Long-Term Dynamics And Silviculture Of Northern Hardwood Forests In The Northeast United States." ScholarWorks @ UVM, 2020. https://scholarworks.uvm.edu/graddis/1187.

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Northern hardwood forests are a vast, temperate forest-type existing across much of northeastern North America. In the northeastern U.S., these forests are found from New York to Maine where they have central cultural, ecological, and economic significance. These ecosystems are incredibly variable across this region, growing on a range of sites and influenced by a suite of biotic and abiotic conditions. Developing management regimes that accommodate the ecological complexity of these forests has been the focus of silvicultural studies for decades; however, this work has been constrained by tem
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Chamberlain, James Luther. "The Management of National Forests of Eastern United States for Non-Timber Forest Products." Diss., Virginia Tech, 2000. http://hdl.handle.net/10919/30053.

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Many products are harvested from the forests of the United States in addition to timber. These non-timber forest products (NTFPs) are plants, parts of plants, or fungi that are harvested from within and on the edges of natural, disturbed or managed forests. Often, NTFPs are harvested from public forests for the socio-economic benefit they provide to rural collectors. Social science and market research methods were used to examine the extent that NTFPs are addressed in national forest management plans, identify and explore issues that affect their management, and determine the attitudes and
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Bücher zum Thema "Forest insects – United States"

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Service, United States Forest, ed. Insects of eastern forests. The Service, 1985.

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C, Loomis Robert, Tucker Susan, Hofacker Thomas H, and United States. Forest Pest Management., eds. Insect and disease conditions in the United States, 1979-83. U.S. Dept. of Agriculture, Forest Service, State and Private Forestry, Forest Pest Management, 1985.

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United States. Forest Health Protection. 2003-2007 strategic plan: Forest Health Protection. U.S. Dept. of Agriculture, Forest Service, State and Private Forestry, Forest Health Protection, 2003.

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United States. Forest Health Protection. 2003-2007 strategic plan: Forest Health Protection. U.S. Dept. of Agriculture, Forest Service, State and Private Forestry, Forest Health Protection, 2003.

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Carol, Meisenbacher, Reardon Richard C, and United States. Forest Health Technology Enterprise Team, eds. Biological control of arthropod forest pests of the western United States: A review and recommendations. USDA Forest Service, Forest Health Technology Enterprise Team, 1998.

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L, Foltz John, and United States. Forest Health Technology Enterprise Team., eds. Classical biological control of pest insects of trees in the southern United States: A review and recommendations. USDA, Forest Service, Forest Health Technology Enterprise Team, 1997.

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H, Frank J. Classical biological control of pest insects of trees in the southern United States: A review and recommendations. USDA, Forest Service, Forest Health Technology Enterprise Team, 1997.

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Tucker, Susan, Robert C. Loomis, and Thomas H. Hofacker. Insect and disease conditions in the United States, 1979-83: What else is growing in our forests? The Service, 1985.

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Service, United States Forest, ed. Advancing knowledge of forests and rangelands: 1984 research accomplishments. U.S. Dept. of Agriculture, Forest Service, 1985.

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Rocky Mountain Research Station (Fort Collins, Colo.), ed. A history of forest entomology in the Intermountain and Rocky Mountain areas, 1901 to 1982. U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2007.

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Buchteile zum Thema "Forest insects – United States"

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Miniat, Chelcy Ford, Jennifer M. Fraterrigo, Steven T. Brantley, et al. "Impacts of Invasive Species on Forest and Grassland Ecosystem Processes in the United States." In Invasive Species in Forests and Rangelands of the United States. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45367-1_3.

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AbstractIn this chapter, we describe current understanding of and identify research gaps on how invasive species directly, and indirectly, affect ecosystem processes. Specifically, we focus on how invasive species can alter the terrestrial carbon, nitrogen, and hydrologic cycles and how changes to these terrestrial cycles cascade to affect water quantity and quality. While invasive species may alter other ecosystem processes, we focus on these due to their importance to policy, to the public, and to their likely interaction with climate change effects. For example, carbon sequestration and sur
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Koch, Jennifer, Dean E. Pearson, Cynthia D. Huebner, Michael K. Young, and Richard A. Sniezko. "Restoration of Landscapes and Habitats Affected by Established Invasive Species." In Invasive Species in Forests and Rangelands of the United States. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45367-1_8.

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AbstractPreventing invasions of aquatic and terrestrial habitats is the preferred and most cost-effective approach to address the invasive species threat (see Chap. 10.1007/978-3-030-45367-1_6). However, when prevention efforts fail, invasive species can become widespread and deeply embedded in native ecosystems, causing severe impacts (see Chaps. 10.1007/978-3-030-45367-1_2, 10.1007/978-3-030-45367-1_3, and 10.1007/978-3-030-45367-1_4). In such cases, invader control (see Chap. 10.1007/978-3-030-45367-1_7) accompanied by restoration facilitates recovery of native species and prevents reinvasi
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Haack, Robert A. "Forest insect trends along an acidic deposition gradient in the central United States." In Proceedings of the 8th International Symposium on Insect-Plant Relationships. Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-1654-1_14.

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Venette, Robert C., Doria R. Gordon, Jennifer Juzwik, et al. "Early Intervention Strategies for Invasive Species Management: Connections Between Risk Assessment, Prevention Efforts, Eradication, and Other Rapid Responses." In Invasive Species in Forests and Rangelands of the United States. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45367-1_6.

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AbstractManaging invasive species becomes increasingly difficult and expensive as populations of new pathogens, plants, insects, and other animals (i.e., pests) spread and reach high densities. Research over the past decade confirms the value of early intervention strategies intended to (1) prevent invasive species from arriving within an endangered area or (2) detect and respond quickly to new species incursions (Baker et al. 2009; Ewel et al. 1999; Holden et al. 2016; Leung et al. 2014). The goal of such biosecurity approaches is to keep or return the density of invasive species to zero so t
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McRoberts, Ronald E., and Patrick D. Miles. "United States of America." In National Forest Inventories. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-44015-6_45.

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McRoberts, Ronald E. "United States of America (USA)." In Managing Forest Ecosystems. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-56201-8_27.

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Carlson, Jaime, Ramon Olivas, Bradford Gentry, and Anton Chiono. "United States Legislative Proposals on Forest Carbon." In Managing Forest Carbon in a Changing Climate. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-2232-3_16.

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Ebinger, John E. "Forest Communities of the Midwestern United States." In Conservation in Highly Fragmented Landscapes. Springer New York, 1997. http://dx.doi.org/10.1007/978-1-4757-0656-7_1.

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Donovan, Geoffrey H., Thomas C. Brown, and Lisa Dale. "Incentives and Wildfire Management in the United States." In The Economics of Forest Disturbances. Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-4370-3_16.

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Burton, Glenn W. "Integrating Forest Trees with Improved Pastures." In Range Resources of the Southeastern United States. American Society of Agronomy and Crop Science Society of America, 2015. http://dx.doi.org/10.2134/asaspecpub21.c5.

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Konferenzberichte zum Thema "Forest insects – United States"

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Hoque, Mohammad Ehsanul, and Mehmet Kurum. "GNSS-T Forest Transmissivity Simulations Based on LiDAR-Derived Tree Structure." In 2025 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM). IEEE, 2025. https://doi.org/10.23919/usnc-ursinrsm66067.2025.10907203.

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Sisenis, Linards, Irina Pilvere, Baiba Jansone, Dace Brizga, and Edgars Dubrovskis. "ASSESSMENT OF THE QUALITY AND PRODUCTIVITY OF LODGEPOLE PINE GROWN IN THE WESTERN PART OF LATVIA." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/3.1/s14.42.

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The research aims to examine the pace of growth of lodgepole pine, the amount of damage caused by biungulates and the quality of trunks for lodgepole pine provenances growing in the western part of Latvia in the areas around Ugale and Kuldiga, identifying the most damage-resistant and promising provenances for cultivation in Latvia. In Latvia, foresters and plant breeders have been working for years to increase the quality and productivity of local tree species, while assessing various forest stand management patterns and trying to reduce the rotation period of stands. Nowadays, because of cli
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Bedoya, Julian, and Diana M. Rincon. "Wing Geometry and Dynamic Similarity in Insect Flight." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-32283.

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The study of insect and bird flight has always been a curiosity, but it is yet to be described as plentifully as fixed wing aerodynamics. The United States military has expressed an interest in this topic, providing some institutions with funding. The main intention for this type of research is to develop small robots resembling insects or birds for use in exploration, surveillance and intelligence. While conceptually these applications could be accomplished with fixed-wing aircraft, there is a tremendous lack of stealth in these vehicles. The velocities associated with the required lift force
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Sing, Sharlene E. "An overview of biological control programs against invasive insects and plants for protection of forested ecosystems in the United States." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.94666.

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Marone, Palma Ann. "Regulatory aspects of insects in food in the United States and Europe." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.109257.

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Naeher, LP, O. Adetona, DB Hall, et al. "Forest Firefighter PM2.5Exposure during Prescribed Forest Burns in the Southeastern United States." In American Thoracic Society 2009 International Conference, May 15-20, 2009 • San Diego, California. American Thoracic Society, 2009. http://dx.doi.org/10.1164/ajrccm-conference.2009.179.1_meetingabstracts.a3663.

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Limar, I., and V. Khodorchuk. "Industrial breeding of edible insects in the context of food security of Ukraine." In international scientific-practical conference. MYKOLAYIV NATIONAL AGRARIAN UNIVERSITY, 2024. http://dx.doi.org/10.31521/978-617-7149-78-0-90.

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Historically, some regions of the world have eaten insects. Edible insects are a source of complete protein. Currently, commercial promotion of edible insects is observed in European countries and in the United States. In the conditions of Ukraine, the industrial breeding of insects for food consumption can be considered as a component of the country's food security
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Miles, P. D., R. E. McRoberts, K. E. Skog, W. D. Shepperd, J. S. Vissage, and B. J. Stokes. "Accessing and extending the utility of United States forest inventory data." In Proceedings. 15th International Workshop on Database and Expert Systems Applications, 2004. IEEE, 2004. http://dx.doi.org/10.1109/dexa.2004.1333537.

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Peterson, Matthew, Meredith Brown, Irina Tezaur, and Diana Bull. "Pathway Detection using Random Forest Regressor Feature Importances." In CIS ERB - Albuquerque, New Mexico, United States of America - March - 2023. US DOE, 2023. http://dx.doi.org/10.2172/2431730.

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Booth, Adam, Brian Buma, David De Guzman, et al. "LANDSLIDE-FOREST INTERACTIONS GOVERNING THE POST-GLACIAL LANDSCAPE EVOLUTION OF SOUTHEAST ALASKA, UNITED STATES." In GSA Connects 2022 meeting in Denver, Colorado. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022am-382217.

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Berichte der Organisationen zum Thema "Forest insects – United States"

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Vogt, James T., Kamal J. K. Gandhi, Don C. Bragg, Rabiu Olatinwo, and Kier D. Klepzig. Interactions Between Weather-Related Disturbance and Forest Insects and Diseases in the Southern United States. U.S. Department of Agriculture, Forest Service, Southern Research Station, 2020. http://dx.doi.org/10.2737/srs-gtr-255.

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Hicke, Jeffrey A., Benjamin C. Bright, Ryan P. Hanavan, et al. Remote sensing of forest insect and disease outbreaks in the western United States: Tree, stand, and landscape responses and technologies and methods for detection and attribution. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2024. http://dx.doi.org/10.2737/rmrs-gtr-443.

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Pfisterer, Nathan, and Nathan Beane. Estimating present value cost of invasive Emerald Ash Borer (Agrilus planipennis) on USACE project lands. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/46475.

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Annotation:
The US Army Corps of Engineers (USACE) is responsible for stewardship of approximately 12.5 million acres across the United States. USACE’s Environmental Stewardship program mission is to protect, preserve, and restore significant ecological resources on USACE project lands. Since the early 2000s, non-native and invasive Emerald Ash Borer (EAB) has killed hundreds of millions of ash trees in the US, becoming the most destructive and costly invasive forest insect in North America. This research effort estimates the cost of managing EAB damage to USACE projects including treatment, removal, or r
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Finco, Mark V., and Barry T. Wilson. Forest Atlas of the United States. Edited by Charles H. Perry. U.S. Department of Agriculture, Forest Service, 2022. http://dx.doi.org/10.2737/fs-1172.

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Powell, Douglas S., Joanne L. Faulkner, David R. Darr, Zhiliang Zhu, and Douglas W. MacCleery. Forest resources of the United States, 1992. U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1993. http://dx.doi.org/10.2737/rm-gtr-234.

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Lockman, I. Blakey, and Holly S. J. Kearns. Forest root diseases across the United States. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2016. http://dx.doi.org/10.2737/rmrs-gtr-342.

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7

Smith, W. Brad, John S. Vissage, David R. Darr, and Raymond M. Sheffield. Forest Resources of the United States, 1997. U.S. Department of Agriculture, Forest Service, North Central Research Station, 2001. http://dx.doi.org/10.2737/nc-gtr-219.

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Smith, W. Brad, Patrick D. Miles, John S. Vissage, and Scott A. Pugh. Forest Resources of the United States, 2002. U.S. Department of Agriculture, Forest Service, North Central Research Station, 2004. http://dx.doi.org/10.2737/nc-gtr-241.

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Waddell, Karen L., Danlel D. Oswald, and Douglas S. Powell. Forest statistics of the United States, 1987. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 1989. http://dx.doi.org/10.2737/pnw-rb-168.

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Smith, W. Brad, Patrick D. Miles, Charles H. Perry, and Scott A. Pugh. Forest Resources of the United States, 2007. U.S. Department of Agriculture, Forest Service, Washington Office, 2017. http://dx.doi.org/10.2737/wo-gtr-78.

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