Anna Yang, Linda M Haugen, David L Mausel, John Lampereur, Tommy Stueck, Rebecca A Montgomery, Jennifer Juzwik
Oak wilt, caused by the pathogen Bretziella fagacearum, is a destructive disease on oak (Quercus) species in the United States. Established methods to control the belowground spread of oak wilt are not appropriate in all circumstances; thus, forest health managers have a strong need for alternative methods for disease control. We evaluated the effectiveness of operational stump excavation treatments (i.e., “root rupture” method) applied between 2004 and 2014 to control belowground spread of oak wilt on two forests in northeast Wisconsin, USA. The root rupture method achieved a high level of disease control (≥85% of evaluated disease infection centers) for 5 years by harvesting red oak trees within infection centers and uprooting the stumps and associated root mass. The likelihood of disease control success depended on the initial size of the infection center that was treated, with larger infection centers being less likely to be contained with a single treatment than small infection centers. This study highlights the importance of early detection and prompt management in oak wilt suppression programs. Study Implications: Forest management agencies and organizations in the North Central United States continue to face oak wilt epidemics. No single tool or treatment method ensures complete containment of oak wilt; thus, most managers carefully consider all the tools and techniques available to them and determine what best suits their budget and land use priorities. Stump excavation (i.e., “root rupture” method) is a cost-effective treatment for halting belowground spread of the oak wilt fungus, Bretziella fagacearum, that can achieve a high level of disease control. In northern red oak (Quercus rubra) stands with high economic value, this treatment can be applied as a group selection, with the value of the timber potentially offsetting the cost of treatment. The opportunity for complete disease control decreases as oak wilt infection centers increase in size; thus, monitoring and early control actions are critical.
{"title":"Evaluation of the Root Rupture Method for Controlling Belowground Spread of the Oak Wilt Pathogen (Bretziella fagacearum) in Northeast Wisconsin, USA","authors":"Anna Yang, Linda M Haugen, David L Mausel, John Lampereur, Tommy Stueck, Rebecca A Montgomery, Jennifer Juzwik","doi":"10.1093/jofore/fvad055","DOIUrl":"https://doi.org/10.1093/jofore/fvad055","url":null,"abstract":"Oak wilt, caused by the pathogen Bretziella fagacearum, is a destructive disease on oak (Quercus) species in the United States. Established methods to control the belowground spread of oak wilt are not appropriate in all circumstances; thus, forest health managers have a strong need for alternative methods for disease control. We evaluated the effectiveness of operational stump excavation treatments (i.e., “root rupture” method) applied between 2004 and 2014 to control belowground spread of oak wilt on two forests in northeast Wisconsin, USA. The root rupture method achieved a high level of disease control (≥85% of evaluated disease infection centers) for 5 years by harvesting red oak trees within infection centers and uprooting the stumps and associated root mass. The likelihood of disease control success depended on the initial size of the infection center that was treated, with larger infection centers being less likely to be contained with a single treatment than small infection centers. This study highlights the importance of early detection and prompt management in oak wilt suppression programs. Study Implications: Forest management agencies and organizations in the North Central United States continue to face oak wilt epidemics. No single tool or treatment method ensures complete containment of oak wilt; thus, most managers carefully consider all the tools and techniques available to them and determine what best suits their budget and land use priorities. Stump excavation (i.e., “root rupture” method) is a cost-effective treatment for halting belowground spread of the oak wilt fungus, Bretziella fagacearum, that can achieve a high level of disease control. In northern red oak (Quercus rubra) stands with high economic value, this treatment can be applied as a group selection, with the value of the timber potentially offsetting the cost of treatment. The opportunity for complete disease control decreases as oak wilt infection centers increase in size; thus, monitoring and early control actions are critical.","PeriodicalId":15821,"journal":{"name":"Journal of Forestry","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140315480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nicholas P Dewez, Weimin Xi, Duston R Duffie, Mukti R Subedi, Tilak Chaudhary, Sandra Rideout-Hanzak, Ambrose O Anoruo, Thomas Estabrook
In 2011, the forestlands of Texas were affected by one of the most severe droughts in the state’s history, killing an estimated 65 million trees in the East Texas region. This study uses USDA Forest Service Forest Inventory and Analysis data and a standardized precipitation-evapotranspiration index to estimate major tree species responses to the 2011 drought in Texas’ four national forests. We used an analysis of variance and a linear mixed-effect model to evaluate factors contributing to tree mortality and growth. We found that tree mortality rates varied greatly during the drought period relative to predrought levels; higher stand age, higher stand density, and higher mean summer temperature contributed to tree mortality volume. Study Implications: Drought is a recurring disturbance agent and is likely to continue to increase in frequency and severity in the future. We provide an understanding of an exceptional drought as a disturbance agent and its impacts on tree mortality and resistance. The effects of the 2011 drought on national forests in Texas have not previously been evaluated. Texas’ national forests represent over 256,975 ha (635,000 ac) in the state’s eastern region and nearly 10% of all public land in Texas. Our results are useful to decision makers in developing strategies and protecting forestlands in the face of potential future droughts.
{"title":"Analysis of Forest Inventory Data Shows Disparity in Tree Mortality and Resistance in Texas National Forests","authors":"Nicholas P Dewez, Weimin Xi, Duston R Duffie, Mukti R Subedi, Tilak Chaudhary, Sandra Rideout-Hanzak, Ambrose O Anoruo, Thomas Estabrook","doi":"10.1093/jofore/fvad059","DOIUrl":"https://doi.org/10.1093/jofore/fvad059","url":null,"abstract":"In 2011, the forestlands of Texas were affected by one of the most severe droughts in the state’s history, killing an estimated 65 million trees in the East Texas region. This study uses USDA Forest Service Forest Inventory and Analysis data and a standardized precipitation-evapotranspiration index to estimate major tree species responses to the 2011 drought in Texas’ four national forests. We used an analysis of variance and a linear mixed-effect model to evaluate factors contributing to tree mortality and growth. We found that tree mortality rates varied greatly during the drought period relative to predrought levels; higher stand age, higher stand density, and higher mean summer temperature contributed to tree mortality volume. Study Implications: Drought is a recurring disturbance agent and is likely to continue to increase in frequency and severity in the future. We provide an understanding of an exceptional drought as a disturbance agent and its impacts on tree mortality and resistance. The effects of the 2011 drought on national forests in Texas have not previously been evaluated. Texas’ national forests represent over 256,975 ha (635,000 ac) in the state’s eastern region and nearly 10% of all public land in Texas. Our results are useful to decision makers in developing strategies and protecting forestlands in the face of potential future droughts.","PeriodicalId":15821,"journal":{"name":"Journal of Forestry","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139903354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Science and the Pace of Change","authors":"Brenda McComb","doi":"10.1093/jofore/fvae003","DOIUrl":"https://doi.org/10.1093/jofore/fvae003","url":null,"abstract":"","PeriodicalId":15821,"journal":{"name":"Journal of Forestry","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139964609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"2023 SAF National Convention Proceedings","authors":"","doi":"10.1093/jofore/fvae002","DOIUrl":"https://doi.org/10.1093/jofore/fvae002","url":null,"abstract":"","PeriodicalId":15821,"journal":{"name":"Journal of Forestry","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139847368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Emma L Briggs, Daniel U Greene, David C Clabo, Kamal J K Gandhi
Working pine (Pinus spp.) forests in the southern United States rely on herbicides to remove competing vegetation and improve productivity. We conducted a review of the effects of herbicides on understory plants in southern working forests. We also discuss the impacts of herbicides on insect taxa associated with understory vegetation and its litter layer, including Coleoptera (carabid beetles), Hemiptera (true bugs), Hymenoptera (bees/ants), Lepidoptera (moths/butterflies), and Orthoptera (grasshoppers). Herbicides have few reported long-term impacts on understory herbaceous cover and species richness/diversity when applied according to labeled uses and application rates. However, the method of chemical treatment (e.g., broadcast spray or banded application) may influence understory plant structure and composition. Responses of insects to herbicides were species- and taxa-specific and highly variable given their forage/habitat requirements and life histories. Long-term research is needed to evaluate the effects of herbicides on vegetation-associated insects to provide a comprehensive profile of herbicide nontarget impacts. Study Implications: Land managers rely on herbicides to remove competing vegetation and increase working forest productivity. Given the objective of sustainable forest management to conserve biodiversity, it is important to understand how biological communities respond to chemical applications in intensively managed forest ecosystems. Our review indicated that herbicides have few reported long-term impacts on understory plant communities when applied appropriately. Despite their taxonomic diversity, invertebrates were rarely included in assessments of forest herbicides. Further research is needed to assess the potential nontarget impacts of herbicide applications on forest insect communities.
{"title":"Herbicides Have Variable Effects on Understory Plant and Insect Communities in Southern United States Working Forests","authors":"Emma L Briggs, Daniel U Greene, David C Clabo, Kamal J K Gandhi","doi":"10.1093/jofore/fvad060","DOIUrl":"https://doi.org/10.1093/jofore/fvad060","url":null,"abstract":"Working pine (Pinus spp.) forests in the southern United States rely on herbicides to remove competing vegetation and improve productivity. We conducted a review of the effects of herbicides on understory plants in southern working forests. We also discuss the impacts of herbicides on insect taxa associated with understory vegetation and its litter layer, including Coleoptera (carabid beetles), Hemiptera (true bugs), Hymenoptera (bees/ants), Lepidoptera (moths/butterflies), and Orthoptera (grasshoppers). Herbicides have few reported long-term impacts on understory herbaceous cover and species richness/diversity when applied according to labeled uses and application rates. However, the method of chemical treatment (e.g., broadcast spray or banded application) may influence understory plant structure and composition. Responses of insects to herbicides were species- and taxa-specific and highly variable given their forage/habitat requirements and life histories. Long-term research is needed to evaluate the effects of herbicides on vegetation-associated insects to provide a comprehensive profile of herbicide nontarget impacts. Study Implications: Land managers rely on herbicides to remove competing vegetation and increase working forest productivity. Given the objective of sustainable forest management to conserve biodiversity, it is important to understand how biological communities respond to chemical applications in intensively managed forest ecosystems. Our review indicated that herbicides have few reported long-term impacts on understory plant communities when applied appropriately. Despite their taxonomic diversity, invertebrates were rarely included in assessments of forest herbicides. Further research is needed to assess the potential nontarget impacts of herbicide applications on forest insect communities.","PeriodicalId":15821,"journal":{"name":"Journal of Forestry","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139767317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"2023 SAF National Convention Proceedings","authors":"","doi":"10.1093/jofore/fvae002","DOIUrl":"https://doi.org/10.1093/jofore/fvae002","url":null,"abstract":"","PeriodicalId":15821,"journal":{"name":"Journal of Forestry","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139787524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
For a century, US Forest Service experimental forests and ranges (EFRs) have been a resource for scientists conducting long-term research relating to forestry and range management. Social science research has been limited, despite the history of occupation and current use of these sites for activities ranging from resource extraction and recreation to public education. This article encourages researchers to take advantage of the rich, though largely untapped, potential EFRs offer for social science by describing their many human dimensions and providing an overview of potential research topics. These topics include human uses, economics, historical studies, population and land-use change, human values, and interdisciplinary social-ecological studies. Lack of awareness among social scientists, limited budgets and networking, and the predominance of biophysical scientists who administer and conduct research at EFRs appear to be inhibiting the development of social science research there. We suggest ways of overcoming these barriers.
{"title":"US Forest Service Experimental Forests and Ranges: An Untapped Resource for Social Science","authors":"Susan Charnley, Lee K. Cerveny","doi":"10.1093/jof/109.6.313","DOIUrl":"https://doi.org/10.1093/jof/109.6.313","url":null,"abstract":"For a century, US Forest Service experimental forests and ranges (EFRs) have been a resource for scientists conducting long-term research relating to forestry and range management. Social science research has been limited, despite the history of occupation and current use of these sites for activities ranging from resource extraction and recreation to public education. This article encourages researchers to take advantage of the rich, though largely untapped, potential EFRs offer for social science by describing their many human dimensions and providing an overview of potential research topics. These topics include human uses, economics, historical studies, population and land-use change, human values, and interdisciplinary social-ecological studies. Lack of awareness among social scientists, limited budgets and networking, and the predominance of biophysical scientists who administer and conduct research at EFRs appear to be inhibiting the development of social science research there. We suggest ways of overcoming these barriers.","PeriodicalId":15821,"journal":{"name":"Journal of Forestry","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139645912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A pilot test was successfully employed during the summer of 1969 to estimate recreation use of the San Gorgonio Wilderness in California's San Bernardino National Forest. A stratified random-sampling model was used. Self-registration stations were placed on all trails into the area. Wilderness users were personally interviewed on randomly selected days and trails to determine rate of registration. The Wilderness received an estimated 59,816 visitor-days of use, and 77 percent of all user groups registered upon entering.
{"title":"Estimating Recreation Use on the San Gorgonio Wilderness","authors":"George A. James, Hans T. Schreuder","doi":"10.1093/jof/69.8.490","DOIUrl":"https://doi.org/10.1093/jof/69.8.490","url":null,"abstract":"A pilot test was successfully employed during the summer of 1969 to estimate recreation use of the San Gorgonio Wilderness in California's San Bernardino National Forest. A stratified random-sampling model was used. Self-registration stations were placed on all trails into the area. Wilderness users were personally interviewed on randomly selected days and trails to determine rate of registration. The Wilderness received an estimated 59,816 visitor-days of use, and 77 percent of all user groups registered upon entering.","PeriodicalId":15821,"journal":{"name":"Journal of Forestry","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139646066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Understanding the knowledge and behavior of nonindustrial private forest landowners towards Port-Orford cedar (POC) root disease (Phytophthora lateralis), sudden oak death (Phytophthora ramorum), and disease-resistant seedlings can help target effective education and outreach programs. We surveyed two counties in Southern Oregon to gain knowledge about these pathogens, disease-resistant seedlings, landowner behavior, and landowner preferences regarding planting disease-resistant seedlings. Amenity-based management objectives were more associated with planting disease-resistant POC. Respondents were more likely to plant disease-resistant conifers than hardwoods. Disease-resistant planting preferences were associated with years owned and acres of ownership. Designing targeted education and outreach programs will be necessary to achieve broad scale adoption of disease management and restoration practices. Study implications: We present results from a survey of nonindustrial private forest (NIPF) landowners in two counties in Southern Oregon to determine general landowner characteristics and knowledge of two nonnative diseases, Port-Orford cedar root disease, caused by Phytophthora lateralis, and sudden oak death, caused by Phytophthora ramorum. NIPF landowners play meaningful roles in invasive disease management: recognizing and reporting symptoms of nonnative plant diseases with the objective of early detection and control, implementing management actions to help mitigate disease spread, and planting disease-resistant seedlings during restoration efforts. Understanding landowner knowledge about diseases is important for engaging them in insect and disease mitigation.
{"title":"Understanding Landowner Education Needs for Invasive Disease Prevention and Restoration Planting in Southern Oregon","authors":"Norma Kline, Tamara Cushing, Lauren Grand","doi":"10.1093/jofore/fvad061","DOIUrl":"https://doi.org/10.1093/jofore/fvad061","url":null,"abstract":"Understanding the knowledge and behavior of nonindustrial private forest landowners towards Port-Orford cedar (POC) root disease (Phytophthora lateralis), sudden oak death (Phytophthora ramorum), and disease-resistant seedlings can help target effective education and outreach programs. We surveyed two counties in Southern Oregon to gain knowledge about these pathogens, disease-resistant seedlings, landowner behavior, and landowner preferences regarding planting disease-resistant seedlings. Amenity-based management objectives were more associated with planting disease-resistant POC. Respondents were more likely to plant disease-resistant conifers than hardwoods. Disease-resistant planting preferences were associated with years owned and acres of ownership. Designing targeted education and outreach programs will be necessary to achieve broad scale adoption of disease management and restoration practices. Study implications: We present results from a survey of nonindustrial private forest (NIPF) landowners in two counties in Southern Oregon to determine general landowner characteristics and knowledge of two nonnative diseases, Port-Orford cedar root disease, caused by Phytophthora lateralis, and sudden oak death, caused by Phytophthora ramorum. NIPF landowners play meaningful roles in invasive disease management: recognizing and reporting symptoms of nonnative plant diseases with the objective of early detection and control, implementing management actions to help mitigate disease spread, and planting disease-resistant seedlings during restoration efforts. Understanding landowner knowledge about diseases is important for engaging them in insect and disease mitigation.","PeriodicalId":15821,"journal":{"name":"Journal of Forestry","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139506519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Francis A. Roesch, Todd A Schroeder, Charles A Price
This article shows how probability sampling and citizen science efforts can complement each other, using the USDA Forest Service’s Forest Inventory and Analysis (FIA) program and the ongoing search by the National Register of Champion Trees (NRCT) for the largest specimen of each naturally occurring tree species in the United States as an example. We develop a ratio statistic (Zs) that uses the difference in size of the largest tree of a species from each database to order the tree species according to the assumed ease with which a larger specimen than the current national champion might be found. Our results show ninety-two candidate species that have been recorded by FIA for which there is no national champion and sixty-five species for which a new champion should be easy to find. In a supplemental table, we show ninety-four species listed as observable by FIA in the NRCT but not recorded in the FIA sample. Study Implications: An interest in forests and forestry is always accompanied by an interest in trees, especially very big trees. Two very different ways of learning about trees are analyzed concurrently in a way that reveals their complementarity. The two efforts are the probability sample, conducted by the USDA Forest Service’s Forest Inventory and Analysis (FIA) Program, and the citizen science effort known as the National Register of Champion Trees (NRCT). We develop a statistic that will help tree sleuths find champion trees and provide FIA practitioners with a quality control measure and an indication of which species would benefit from an increase in sample intensity.
本文以美国农业部林务局的森林资源清查与分析 (FIA) 计划和美国国家冠军树登记 (NRCT) 正在进行的寻找美国各自然生成树种最大标本的工作为例，说明概率取样和公民科学工作如何能够相辅相成。我们开发了一种比值统计量（Zs），利用每个数据库中某一树种最大树木的大小差异，根据找到比当前国家冠军树更大标本的假定难易程度对树种进行排序。我们的结果表明，在 FIA 记录的候选树种中，有 92 个树种没有全国冠军，有 65 个树种应该很容易找到新的冠军。在补充表格中，我们显示了九十四个被 FIA 列为可在 NRCT 中观察到但未在 FIA 样本中记录的物种。研究意义：对森林和林业的兴趣总是伴随着对树木，尤其是大树的兴趣。本研究同时分析了了解树木的两种截然不同的方法，揭示了它们之间的互补性。这两种方式分别是美国农业部林业局森林资源调查与分析项目（FIA）开展的概率抽样调查，以及被称为 "全国冠军树登记册"（NRCT）的公民科学调查。我们开发了一种统计方法，可以帮助树木侦探找到冠军树，并为森林资源清查与分析从业人员提供了一种质量控制措施，同时也表明了哪些树种可以从样本密度的增加中获益。
{"title":"The USDA Forest Service’s Forest Inventory and Analysis Database and the National Register of Champion Trees — A Potentially Symbiotic Relationship","authors":"Francis A. Roesch, Todd A Schroeder, Charles A Price","doi":"10.1093/jofore/fvad058","DOIUrl":"https://doi.org/10.1093/jofore/fvad058","url":null,"abstract":"\u0000 This article shows how probability sampling and citizen science efforts can complement each other, using the USDA Forest Service’s Forest Inventory and Analysis (FIA) program and the ongoing search by the National Register of Champion Trees (NRCT) for the largest specimen of each naturally occurring tree species in the United States as an example. We develop a ratio statistic (Zs) that uses the difference in size of the largest tree of a species from each database to order the tree species according to the assumed ease with which a larger specimen than the current national champion might be found. Our results show ninety-two candidate species that have been recorded by FIA for which there is no national champion and sixty-five species for which a new champion should be easy to find. In a supplemental table, we show ninety-four species listed as observable by FIA in the NRCT but not recorded in the FIA sample.\u0000 Study Implications: An interest in forests and forestry is always accompanied by an interest in trees, especially very big trees. Two very different ways of learning about trees are analyzed concurrently in a way that reveals their complementarity. The two efforts are the probability sample, conducted by the USDA Forest Service’s Forest Inventory and Analysis (FIA) Program, and the citizen science effort known as the National Register of Champion Trees (NRCT). We develop a statistic that will help tree sleuths find champion trees and provide FIA practitioners with a quality control measure and an indication of which species would benefit from an increase in sample intensity.","PeriodicalId":15821,"journal":{"name":"Journal of Forestry","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139438466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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