Evaluating Interior Spruce Genetic Resource Management Practices Through GIS-based Tracking of Seed Deployment Over Time in British Columbia PDF Download
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
To improve current understanding of how genetically improved stocks are spatially and temporally deployed, tree breeders, gene resource managers, and forestry research community can gain insights from an analysis of currently available geospatial data. This analysis can also help and provide the raw material for better understanding of the relationship between gene resource management (GRM) and issues related to climate change and other risks such as the current mountain pine beetle epidemic. GIS links the latest information management concepts and methods to assist GRM achieve higher genetic gain, resilience and conservation goals. According to the Chief Forester's standards for seed use and the target of the Forest Genetics Council of BC, 75% of seed use will be from selected seed sources. This research developed a GIS based method to monitor and assess the spatial temporal variability of seed deployment in one seed planning zone of interior spruce and employed map representations to visualize the spatial cluster dynamics of reforestation plantations in BC. The investigation of deployment areas and stem number of seed stock inform our knowledge of forest recovery in the context of gene resources management. Class A and B seed use increased dramatically after 1995 in the Prince George Seed Production Zone (SPZ). The A class ratio in PG total seed deployment is 48.1% from 1995 to 2004 with seed orchard 214 being the leading seed source for Sx reforestation in PG at the SPU level. The Sub-boreal spruce zone is the main natural habitat area of Sx, where intensive forest management activity undergoes as the plantation hotspots. Observed changes in genetic class indicate the intensive reforestation with selected seed sources. The applicability of GIS modeling methods is available at different SPZ levels and species scopes. The system construction of an updated GRM criteria and decision making support is noteworthy for BC foresters to more wisely harvest, recover, and m.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
To improve current understanding of how genetically improved stocks are spatially and temporally deployed, tree breeders, gene resource managers, and forestry research community can gain insights from an analysis of currently available geospatial data. This analysis can also help and provide the raw material for better understanding of the relationship between gene resource management (GRM) and issues related to climate change and other risks such as the current mountain pine beetle epidemic. GIS links the latest information management concepts and methods to assist GRM achieve higher genetic gain, resilience and conservation goals. According to the Chief Forester's standards for seed use and the target of the Forest Genetics Council of BC, 75% of seed use will be from selected seed sources. This research developed a GIS based method to monitor and assess the spatial temporal variability of seed deployment in one seed planning zone of interior spruce and employed map representations to visualize the spatial cluster dynamics of reforestation plantations in BC. The investigation of deployment areas and stem number of seed stock inform our knowledge of forest recovery in the context of gene resources management. Class A and B seed use increased dramatically after 1995 in the Prince George Seed Production Zone (SPZ). The A class ratio in PG total seed deployment is 48.1% from 1995 to 2004 with seed orchard 214 being the leading seed source for Sx reforestation in PG at the SPU level. The Sub-boreal spruce zone is the main natural habitat area of Sx, where intensive forest management activity undergoes as the plantation hotspots. Observed changes in genetic class indicate the intensive reforestation with selected seed sources. The applicability of GIS modeling methods is available at different SPZ levels and species scopes. The system construction of an updated GRM criteria and decision making support is noteworthy for BC foresters to more wisely harvest, recover, and m.
Author: Ilga M. Porth
Publisher: Springer Nature
ISBN: 3030210014
Category : Science
Languages : en
Pages : 225
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Book Description
This book offers comprehensive information on the genomics of spruces (Picea spp.), naturally abundant conifer tree species that are widely distributed in the Northern Hemisphere. Due to their tremendous ecological and economic importance, the management of forest genetic resources has chiefly focused on conservation and tree improvement. A draft genome sequence of the 20-gigabase Norway spruce genome was published in the journal Nature in 2013. Continuous efforts to improve the spruce genome assembly are underway, but are hindered by the inherent characteristics of conifer genomes: high amounts of repetitive sequences (introns and transposable elements) in the genome and large gene family expansions with regards to abiotic stress, secondary metabolism and spruces' defense responses to pathogens and herbivory. This book presents the latest information on the status of genome assemblies, provides detailed insights into transposable elements and methylation patterns, and highlights the extensive genomic resources available for inferring population genomics and climate adaptation, as well as emerging genomics tools for tree improvement programs. In addition, this volume features whole-genome comparisons among conifer species, and demonstrates how functional genomics can be used to improve gene function annotations. The book closes with an outlook on emerging fields of research in spruce genomics.
Author: Greg O'Neill
Publisher:
ISBN:
Category : Conifers
Languages : en
Pages : 64
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Book Description
"A well-designed seedlot selection system is central to the maintenance of healthy and productive forest plantations, particularly in an era of rapidly changing climates. Opportunities for improving the effectiveness and efficiency of seedlot selection in British Columbia are provided by new technologies, analysis techniques, and genetic data. We propose a climate-based system of seed transfer that is expected to better match seedlots to planting sites using new transfer functions to identify biogeoclimatic ecosystem classification units where each seedlot is anticipated to grow well. The system also: (1) facilitates the use of assisted migration to reduce climate change impacts to forest health and productivity; (2) allows for wider seedlot deployability; (3) increases ease of use; (4) simplifies system updating; (5) quantifies adaptation of seed source options to improve seed source deployment; (6) integrates with species selection."--Page iii.
Author: Katharina J. Liepe
Publisher:
ISBN:
Category : Lodgepole pine
Languages : en
Pages : 74
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Book Description
This thesis investigates genetic variation of two commercially important conifers in western Canada, interior spruce and lodgepole pine. The goals were to quantify genetic diversity and geographic structure, to describe multitrait adaptation to local climates, and to use this information for the development of seed zones for Alberta and British Columbia. The study is based on common garden experiments in growth chambers simulating multiple environments. Genetic differences in phenology, frost hardiness and seedling growth were assessed for approximately 250 seed sources. The results show that 85% of the trait variation was found within populations of both species, while only 15-20% of the among-population variation (or 2-3% of the total variation) could be interpreted as multitrait adaptations to different macroclimatic regions. A key finding of this study is a remarkable degree of genetic diversity in climate-related adaptive traits, implying enough evolutionary capacity to adapt to new environmental conditions. Our results indicate that the current seed zones system can be simplified, especially in Alberta. No more than 20 seedzones for each, lodgepole pine and interior spruce, are required to guide reforestation across Alberta and British Columbia, substantially reducing logistics for seed management.
Author: Chang-Yi Xie
Publisher:
ISBN:
Category : Engelmann spruce
Languages : en
Pages : 38
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Book Description
Interior spruce (the white spruce/Engelmann spruce complex) is the most commonly planted tree in British Columbia and has the greatest value to the forest economy of the province. The Ministry of Forests initiated an ambitious breeding program for interior spruce in the late 1960s aimed at producing sufficient quantities of genetically improved seeds to meet demand for forest regeneration. The program started with designating three selection units across the complex, based mostly on biogeoclimatic information. In each unit, desirable phenotypes were selected and their genetic merit was tested in open pollinated progeny trials. This report summarizes 20-year test results on the performance & variability of the selected open-pollinated families in the East Kootenay selection unit. Results are presented regarding height growth, survival rates, diameter, stem volume, and variations in parameters among specific sites in the unit.
Author: Anna Maria Colangeli
Publisher:
ISBN: 9780662167563
Category : Engelmann spruce
Languages : en
Pages : 13
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Book Description
Author: G. Namkoong
Publisher: Springer Science & Business Media
ISBN: 1461238927
Category : Technology & Engineering
Languages : en
Pages : 186
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Book Description
It has become apparent, during discussions with students and colleagues in forest genetics, that a universal concern is the achievement of diverse goals of forestry from fiber production in industrial as well as farm forests to conserving forest ecosystems. Although we generally have several breeding methods available and several species to breed, we seek to satisfy multiple-use goals on diverse sites by management techniques that at best can only partially control edaphic environmental variation. The dominant approach, which was agriculturally motivated, has involved inten sive effort with complicated breeding plans on single species for uniform adaptability and single-product plantations. However, this is obviously neither the only, nor necessarily the best, solution for the genetic management of tree species, and thus our intent in this volume is to develop ways to achieve multiple objectives in tree breeding. We include an array of breeding plans from simple iterated designs to sets of multiple populations capable of using gene actions for different traits in different environments for uncertain futures. The presentation is organized around the development of breeding from single-to multiple-option plans, from single to multiple traits, from single to mUltiple environ ments, and from single to multiple populations. However, it is not a complete "How To" book, and includes neither exercises nor instructions on data handling. It also does not include discussion of all modes of reproduction and inheritance encountered in plants.
Author: Trevor Fenning
Publisher: Springer Science & Business Media
ISBN: 9400770766
Category : Technology & Engineering
Languages : en
Pages : 823
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Book Description
This book addresses the challenges and opportunities faced by the world’s forests posed by climate change, conservation objectives, and sustainable development needs including bioenergy, outlining the research and other efforts that are needed to understand these issues, along with the options and difficulties for dealing with them. It contains sections on sustainable forestry & conservation; forest resources worldwide; forests, forestry and climate change; the economics of forestry; tree breeding & commercial forestry; biotechnological approaches; genomic studies with forest trees; bio-energy, lignin & wood; and forest science, including ecological studies. The chapters are contributed by prominent organisations or individuals with an established record of achievement in these areas, and present their ideas on these topics with the aim of providing a ready source of information and guidance on these topics for politicians, policy makers and scientists for many years to come.
Author: U.S. Global Change Research Program
Publisher: Cambridge University Press
ISBN: 0521144078
Category : Business & Economics
Languages : en
Pages : 193
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Book Description
Summarizes the science of climate change and impacts on the United States, for the public and policymakers.
Author: Ontario. Ministry of Natural Resources
Publisher:
ISBN:
Category : Aspen
Languages : en
Pages : 164
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Book Description
