COSEWIC Assessment and Update Status Report on the American Chestnut, Castanea Dentata in Canada [electronic Resource]
COSEWIC Assessment and Update Status Report on the American Chestnut, Castanea Dentata in Canada [electronic Resource]

Author: John D. Ambrose

Publisher:

Published: 2005

Total Pages: 19

ISBN-13: 9780662395454

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This report evaluates the status of the American chestnut (Castanea dentata). Remnants of once large populations of this tree still survive across most of its historical range in southern Ontario as well as most of the states within its range to the south. The report provides general information on the species (name and classification, description) and describes the following: distribution; habitat; biology; population sizes and trends; limiting factors and threats; special significance of the species; existing protection or other status.

Hardwood Reforestation and Restoration
Hardwood Reforestation and Restoration

Author: Daniel Gagnon

Publisher: MDPI

Published: 2019-04-25

Total Pages: 192

ISBN-13: 3038977306

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Hardwood-dominated temperate forests (mostly in Eastern North America, Europe, North East Asia) provide valuable renewable timber and numerous ecosystem services. Many of these forests have been subjected to harvesting or conversion to agriculture, sometimes over centuries, that have greatly reduced their former extent and diversity. Natural regeneration following harvesting or during post-agricultural succession has often failed to restore these forests adequately. Past harvesting practices and the valuable timber of some species have led to a reduction in their abundance. The loss of apex predators has caused herbivore populations to increase and exert intense browsing pressure on hardwood regeneration, often preventing it. Particularly important are fruit, nut and acorn bearing species, because of their vital role in forest food webs and biodiversity. Restoring hardwood species to natural forests in which they were formerly more abundant will require a number of forest management actions (e.g., resistant hybrids, deer exclosures/protectors, enrichment planting, underplanting, etc.). Similarly, reforesting areas that were once natural forests will also require new silvicultural knowledge. Global warming trends will intensify the need for interventions to maintain the diversity and function of temperate hardwood forests, as well as for increase hardwood reforestation.

Forest Health and Biotechnology
Forest Health and Biotechnology

Author: National Academies of Sciences, Engineering, and Medicine

Publisher: National Academies Press

Published: 2019-04-01

Total Pages: 241

ISBN-13: 0309482887

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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.

Synthetic Seeds
Synthetic Seeds

Author: Mohammad Faisal

Publisher: Springer Nature

Published: 2019-11-23

Total Pages: 487

ISBN-13: 3030246310

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This book introduces the reader to synthetic or artificial seeds, which refer to alginate encapsulated somatic embryos, vegetative buds or any other micropropagules that can be used as seeds and converted into plantlets after propagating under in vitro or in vivo conditions. Moreover, synthetic seeds retain their potential for regeneration even after low-temperature storage. The production of synthetic or artificial seeds using micropropagules opens up new vistas in agricultural biotechnology. Encapsulated propagules could be used for in vitro regeneration and mass multiplication at reasonable cost. In addition, these propagules may be used for germplasm preservation of elite plant species and the exchange of plant materials between national and international laboratories. This book offers state-of-the-art findings on methods, applications and prospects of synthetic or artificial seeds.

Non-timber Forest Products in Ontario
Non-timber Forest Products in Ontario

Author: Gina H. Mohammed

Publisher: Sault Ste. Marie : Ontario Forest Research Institute

Published: 1999

Total Pages: 74

ISBN-13:

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This report reviews commercial and non-commercial non-timber forest products in Ontario, beginning with an introduction discussing the kinds of such products and their importance. Non-timber products are reviewed in the following categories: food products such as maple products, berries, honey, mushrooms, nuts, and wild rice; herbal & personal care products such as medicinal plants; materials & manufacturing products, including specialty wood products and essential oils; environmental products such as fuel wood, biological pesticides, and recycled wood waste; landscape & garden products such as landscape plans, mulches, and soil amendments; and decorative & aesthetic products such as Christmas trees, floral & foliage products, cones, and Native crafts. Issues associated with the development of non-timber forest products are then discussed, including sustainability, health & safety, and economic viability. Finally, recommendations are made that may help to advance the non-timber forest sector in Ontario.

Southern Fruit-producing Woody Plants Used by Wildlife
Southern Fruit-producing Woody Plants Used by Wildlife

Author: Southern Forest Experiment Station (New Orleans, La.)

Publisher:

Published: 1977

Total Pages: 244

ISBN-13:

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Describes and provides illustrations of 106 woody plant species that produce fruit useful to wildlife in southern forests. It also includes information about plant growth requirements, management, and nutritional quality. Trees, shrubs, and vines that produce fleshy fruits or nuts are emphasized.

Field Manual of Michigan Flora
Field Manual of Michigan Flora

Author: Edward G. Voss

Publisher: University of Michigan Press

Published: 2012-02-08

Total Pages: 1005

ISBN-13: 0472118110

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A comprehensive guide to Michigan’s wild-growing seed plants

Trees of Ontario, Including Tall Shrubs
Trees of Ontario, Including Tall Shrubs

Author: Linda Kershaw

Publisher: Lone Pine Publishing

Published: 2001

Total Pages: 240

ISBN-13: 9781551052748

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TREES OF ONTARIO is a comprehensive guide to all native and naturalized trees and tall shrubs in the province. Includes 213 species from 31 families: * Notes of interest on edible fruits and on human and wildlife use of the trees * 574 colour photos and illustrations show each tree's bark, leaves, flowers, fruits or cones, and overall shape * Identification is easy with tips for distinguishing similar species * Range maps and habitat descriptions * Illustrated keys based on leaf, flower, fruit and winter characteristics * Name origins and French names * Illustrated glossary. * Keep this handy book in your backpack for easy reference on hikes and walks, or put it on your cottage bookshelf.