Wetland Distribution and Conversion in Southern Ontario
Wetland Distribution and Conversion in Southern Ontario

Author: Elizabeth A. Snell

Publisher:

Published: 1987

Total Pages: 66

ISBN-13:

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"Concern over the ongoing conversion of wetlands is growing. Information on the location, extent, and quality of remaining wetlands is needed to assist in developing future policy and management actions aimed at retaining wetland values. In addition, knowledge of wetland conversion rates and trends is important in assessing the current status of wetlands"--Abstract.

An Examination of Wetland Conversion and Resulting Effects on Landscape Connectivity in Southern Ontario Municipalities
An Examination of Wetland Conversion and Resulting Effects on Landscape Connectivity in Southern Ontario Municipalities

Author: Waverley Birch

Publisher:

Published: 2019

Total Pages:

ISBN-13:

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The few wetlands that remain in the human-dominated landscape of southern Ontario are affected by degradation and conversion to other land use and land cover types. Conversion has negative impacts on wetland-provisioned ecosystem services, such as aquatic species habitat, water filtration and flood prevention. Impacts on the latter services are especially concerning, given the increase of flood events that likely will be exacerbated by a changing climate. Stormwater management (SWM) ponds are constructed to control urban runoff, but do not have the same form and function as wetlands. This study examined recent (2002-2011) trends and drivers of wetland conversion (i.e. wetland loss and SWM pond gain) in seven southern Ontario municipalities. Following this, a Markov model was constructed to project future conversion given specific land use and land cover types. Network analytical approaches were then used to investigate effects of conversion on landscape connectivity. Results show that most wetlands lost were smaller than 2 hectares. While the total area of SWM ponds gained was greater than that of wetlands lost, the size of the average SWM pond gained was less than the size of the average wetland lost. Wetland conversion is projected to continue under all examined land use and land cover types, with losses particularly high in extractive and urban land uses. Overall, wetland conversion corresponded with decreased connectivity. Wetlands appeared to be more connected over the landscape compared to SWM ponds. However, SWM ponds likely acted as stepping-stones between wetlands and compensated somewhat for connectivity losses. The results provide further evidence for the need to halt wetland losses, especially for small wetlands, while showing the potential for connectivity improvements by SWM ponds. By conserving wetlands, policy makers can help to protect human life and property that rely on the critical ecosystem services provided by wetlands.

Wetlands
Wetlands

Author: George Mulamoottil

Publisher: CRC Press

Published: 2017-12-14

Total Pages: 328

ISBN-13: 135140444X

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An understanding of environmental gradients (physical, chemical, hydrological, and biological) is a prerequisite to the accurate delineation of wetland boundaries. Presenting the wide-ranging views of academicians, environmentalists, policy makers, consultants, planners, engineers, hydrologists, biologists, geochemists, ecologists, and conservationists, Wetlands: Environmental Gradients, Boundaries, and Buffers focuses on current topics and research related to wetland delineation; summarizes the main issues of concern; and provides recommendations on research needs. In addition to integrating the most important research and theoretical aspects, this book includes a strong prescriptive component, providing practicing professionals with specific guidance on defining the true dimensions of a wetland area.

Making Ontario
Making Ontario

Author: John David Wood

Publisher: McGill-Queen's Press - MQUP

Published: 2000

Total Pages: 248

ISBN-13: 9780773520486

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The colony that became Ontario arose almost spontaneously out of the confusion and uncertainty following the American Revolution, as a quickly chosen refuge for some 10,000 Loyalists who had to leave their former homes. After the War of 1812 settlers began to spread throughout the inter-lake peninsula that was to become southern Ontario and by the middle of the nineteenth century expansion had led to a diversifying agriculture and an increasingly open farming landscape that replaced a mature forest ecosystem. The scale of the change from forest to cropland profoundly affected what had been for many decades a rich environment for life forms, from large herbivores down to microscopic creatures. In Making Ontario David Wood shows that the most effective agent of change in the first century of Ontario's development was not the locomotive but settlers' attempts to change the forest into agricultural land. Wood traces the various threads that went into creating a successful farming colony while documenting the sacrifice of the forest ecosystem to the demands of progress, progress that prepared the ground for the railway. Making Ontario provides a detailed focus on environmental modification at a time of great changes. It is liberally illustrated with analytical maps based on archival research. J. David Wood is professor of geography and urban studies at Atkinson College, York University.

Browsing Science Research at the Federal Level in Canada
Browsing Science Research at the Federal Level in Canada

Author: Brian B. Wilks

Publisher: University of Toronto Press

Published: 2004-01-01

Total Pages: 664

ISBN-13: 9780802088116

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Wilks provides a historical background, list of publications, and description of activities for most of the major science initiatives undertaken at the federal level. He surveys a wide range of government documents and monographic and serial science collections used by both faculty and students.

Northern Forested Wetlands Ecology and Management
Northern Forested Wetlands Ecology and Management

Author: Carl C. Trettin

Publisher: Routledge

Published: 2018-12-19

Total Pages: 512

ISBN-13: 1351427911

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Forested wetlands are a major component of northern landscapes, important both for their ecological functions and their socioeconomic values. Historically, these lands have been used for timber and fiber products, hunting, fishing, trapping, food gathering, and recreation. There are many questions about the use and management of these lands in the future, particularly with respect to forest products, hydrology and water quality, plant and wildlife ecology, landscape dynamics, and wetland restoration. Northern Forested Wetlands: Ecology and Management provides a synthesis of current research and literature. It examines the status, distribution, and use of these wetland resources. The book focuses on understanding the role of wetlands in the landscape and on how to manage these wetlands and sustain their important functions. This is a primary reference text for the study and management of northern forested wetlands, providing a forum for information discovered by researchers and managers from many nations.

Climate Change and Managed Ecosystems
Climate Change and Managed Ecosystems

Author: Jagtar Bhatti

Publisher: CRC Press

Published: 2005-12-20

Total Pages: 465

ISBN-13: 142003779X

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Featuring contributions from leading experts in the field, Climate Change and Managed Ecosystems examines the effects of global climate change on intensively constructed or reconstructed ecosystems, focusing on land use changes in relation to forestry, agriculture, and wetlands including peatlands. The book begins by discussing the fragility of eco