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Author: Louren Kotow
Publisher:
ISBN: 9781267028914
Category :
Languages : en
Pages :
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Book Description
This study assessed the extent to which California's municipal forests were at risk from pest and disease threats. The two main tools used in the analysis were: Pest Vulnerability Matrix, a Microsoft Excel spreadsheet that illustrates pest-host interactions and overlap; and the US Forest Service's i-Tree Streets computer program that quantifies and monetizes municipal forest benefits and costs. The assessment applied these tools to data from 30 California munipalities' tree inventories. A report card concept was developed to identify and prioritize forest traits contributing to the population's vulnerability to loss. The analysis focused on four indicators: species/size diversity, age diversity, pest threat, and potential asset loss. We assigned letter grades (A-F) to each of the four indicators and a final grade to each city. Letter grades were determined from data such as: importance values, relative abundance of each taxon, age class distribution (juvenile, semi-mature, mature, senescent), pest scores, total benefit values and associated risk of loss. Also included in the assessment was data on the most severe pests, emerging pests, and counts of pests affecting the current inventory. The grades allow cities to compare themselves with other cities, as well as against an accepted standard. The report card reveals areas of proficiency and deficiency. Prioritized recommendations are presented concerning tree selection, monitoring, integrated pest management, and removal and replacement planning. The hope is that the report cards will promote greater awareness and more focused actions by managers to reduce the vulnerability of their municipal forests to pest threats.
Author: Louren Kotow
Publisher:
ISBN: 9781267028914
Category :
Languages : en
Pages :
Get Book Here
Book Description
This study assessed the extent to which California's municipal forests were at risk from pest and disease threats. The two main tools used in the analysis were: Pest Vulnerability Matrix, a Microsoft Excel spreadsheet that illustrates pest-host interactions and overlap; and the US Forest Service's i-Tree Streets computer program that quantifies and monetizes municipal forest benefits and costs. The assessment applied these tools to data from 30 California munipalities' tree inventories. A report card concept was developed to identify and prioritize forest traits contributing to the population's vulnerability to loss. The analysis focused on four indicators: species/size diversity, age diversity, pest threat, and potential asset loss. We assigned letter grades (A-F) to each of the four indicators and a final grade to each city. Letter grades were determined from data such as: importance values, relative abundance of each taxon, age class distribution (juvenile, semi-mature, mature, senescent), pest scores, total benefit values and associated risk of loss. Also included in the assessment was data on the most severe pests, emerging pests, and counts of pests affecting the current inventory. The grades allow cities to compare themselves with other cities, as well as against an accepted standard. The report card reveals areas of proficiency and deficiency. Prioritized recommendations are presented concerning tree selection, monitoring, integrated pest management, and removal and replacement planning. The hope is that the report cards will promote greater awareness and more focused actions by managers to reduce the vulnerability of their municipal forests to pest threats.
Author: California Environmental Protection Agency. Risk Assessment Advisory Committee
Publisher:
ISBN:
Category : Environmental health
Languages : en
Pages : 404
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Book Description
Author: Harold Mooney
Publisher: Univ of California Press
ISBN: 0520278801
Category : Nature
Languages : en
Pages : 1008
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Book Description
This long-anticipated reference and sourcebook for CaliforniaÕs remarkable ecological abundance provides an integrated assessment of each major ecosystem typeÑits distribution, structure, function, and management. A comprehensive synthesis of our knowledge about this biologically diverse state, Ecosystems of California covers the state from oceans to mountaintops using multiple lenses: past and present, flora and fauna, aquatic and terrestrial, natural and managed. Each chapter evaluates natural processes for a specific ecosystem, describes drivers of change, and discusses how that ecosystem may be altered in the future. This book also explores the drivers of CaliforniaÕs ecological patterns and the history of the stateÕs various ecosystems, outlining how the challenges of climate change and invasive species and opportunities for regulation and stewardship could potentially affect the stateÕs ecosystems. The text explicitly incorporates both human impacts and conservation and restoration efforts and shows how ecosystems support human well-being. Edited by two esteemed ecosystem ecologists and with overviews by leading experts on each ecosystem, this definitive work will be indispensable for natural resource management and conservation professionals as well as for undergraduate or graduate students of CaliforniaÕs environment and curious naturalists.
Author:
Publisher: Government Printing Office
ISBN: 9780160929908
Category : Forest health
Languages : en
Pages : 210
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Book Description
Author: California Environmental Protection Agency. Office of Environmental Health Hazard Assessment
Publisher:
ISBN:
Category : Environmental health
Languages : en
Pages : 117
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Book Description
Author: John M. Pye
Publisher:
ISBN:
Category : Ecological assessment (Biology)
Languages : en
Pages : 266
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Book Description
In July 2006, more than 170 researchers and managers from the United States, Canada, and Mexico convened in Boulder, Colorado, to discuss the state of the science in environmental threat assessment. This two-volume general technical report compiles peer-reviewed papers that were among those presented during the 3-day conference. Papers are organized by four broad topical sections--Land, Air and Water, Fire, and Pests/Biota--and are divided into syntheses and case studies. Land topics include discussions of forest land conversion and soil quality as well as investigations of species' responses to climate change. Air and water topics include discussions of forest vulnerability to severe weather and storm damage modeling. Fire topics include discussions of wildland arson and wildfire risk management as well as how people precieve wildfire risk and uncertainty. Pests/biota topics include discussions of risk mapping and probabilistic risk assessments as well as investigations of individual threats, including the southern pine beetle and Phytophora alni. Ultimately, this publication will foster exchange and collaboration between those who develop knowledge and tools for threat assessment and those who are responsible for managing forests and rangelands.
Author: California Environmental Protection Agency. Office of Environmental Health Hazard Assessment
Publisher:
ISBN:
Category : Environmental health
Languages : en
Pages : 201
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Book Description
Author:
Publisher: Government Printing Office
ISBN: 9780160934322
Category : Technology & Engineering
Languages : en
Pages : 226
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Book Description
The annual national report of the Forest Health Monitoring (FHM) Program of the Forest Service, U.S. Department of Agriculture, presents forest health status and trends from a national or multi-State regional perspective using a variety of sources, introduces new techniques for analyzing forest health data, and summarizes results of recently completed Evaluation Monitoring projects funded through the FHM national program.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 574
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Book Description
Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
ISBN: 0309482887
Category : Science
Languages : en
Pages : 241
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Book Description
The American chestnut, whitebark pine, and several species of ash in the eastern United States are just a few of the North American tree species that have been functionally lost or are in jeopardy of being lost due to outbreaks of pathogens and insect pests. New pressures in this century are putting even more trees at risk. Expanded human mobility and global trade are providing pathways for the introduction of nonnative pests for which native tree species may lack resistance. At the same time, climate change is extending the geographic range of both native and nonnative pest species. Biotechnology has the potential to help mitigate threats to North American forests from insects and pathogens through the introduction of pest-resistant traits to forest trees. However, challenges remain: the genetic mechanisms that underlie trees' resistance to pests are poorly understood; the complexity of tree genomes makes incorporating genetic changes a slow and difficult task; and there is a lack of information on the effects of releasing new genotypes into the environment. Forest Health and Biotechnology examines the potential use of biotechnology for mitigating threats to forest tree health and identifies the ecological, economic, and social implications of deploying biotechnology in forests. This report also develops a research agenda to address knowledge gaps about the application of the technology.