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"The study of wetlands from a land use change perspective has been selected as the second component of the Prime Resource Lands Project, Canada Land Use Monitoring Program. This report examines the existing information on wetland conversion, to serve as a basis for the design and focus of a national land use monitoring project"--Abstract.
"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.
"This paper reports on a study of land use change on wetlands within a portion of British Columbia's, Southwestern Fraser Lowland. Wetlands were identified on the basis of soil and habitat characteristics. A map of these wetland areas was superimposed on land use maps for 1967 and 1982 to obtain change data"--Abstract.
A classification system for Canadian wetlands based on the collective expertise and research of scientists across Canada. The system is provisional and subject to revision in future editions.
New focused text introduces readers to wetland ecosystems and systems approaches to studying wetlands With its comprehensive coverage of wetland science, management, and restoration, Mitsch and Gosselink's Wetlands has been the premier reference on wetlands for more than two decades. Now, the coverage of specific wetland ecosystem types from earlier editions of this acclaimed work has been updated, revised, and supplemented with additional content in order to create this new text focusing exclusively on wetland ecosystems. This book now complements Wetlands, Fourth Edition. Following an introduction to ecosystems in general and wetland ecosystems in particular, Wetland Ecosystems examines the major types of wetlands found throughout the world: coastal wetlands, freshwater marshes and forested swamps, and peatlands. The final chapter reviews three fundamental systems approaches to studying wetlands: mesocosms, full-scale experimental ecosystems, and mathematical modeling. This new text features: Updated descriptions of the hydrology, biogeochemistry, and biology of the main types of wetlands found in the world New content introducing general ecosystems, wetland ecosystems, whole ecosystem and mesocosm experiments with wetlands, and systems ecology and modeling A detailed description of the ecosystem services provided by wetlands A broad international scope, including many examples of wetlands located outside North America Two new coauthors offering new perspectives and additional insights into the latest ecosystem and modeling techniques An abundance of illustrations helps readers understand how different biological communities and the abiotic environment in wetland ecosystems interact and function. Tables and text boxes provide at-a-glance summaries of key information. Lastly, each chapter concludes with a list of recommended readings. This text has been designed as an introduction for students and professionals in wetland ecology and management, general ecology, environmental science, and natural resource management.
The impetus for this volume was the 2nd International Wetlands Conference which was held in June, 1984 at Trebon, Czechoslovakia. An overview of the worlds wetlands was one of the themes of the conference and it was decided that a useful follow-up would be a publication on the same topic. The initial goal was to cover as many of the worlds wetlands as possible in one volume and to have an emphasis on wetland ecology, biota, classification, and management. Individuals who made presentations at the Trebon confer ence were asked to prepare chapters and the editors also solicited other contributions. For a variety of reasons, the initial goal has been difficult to reach, especially coverage of the entire globe, and it has been necessary to publish the contributions in more than one volume. Volume 1 represents the com pletion of the first phase of the project and it covers most of the Western Hemisphere, Australia, most of Africa, the Indian subcontinent, the Mediter ranean region, and Papua New Guinea. Volume 2 will contain chapters on Western Europe, Northern Europe, Central Europe, most of northern and It is our hope that Volume western Asia, the Middle East, and Indonesia. 2 will appear in the near future and, if possible, a third volume will be published if authors can be secured to cover areas such as the Far East, other parts of the Indo-Pacific region, and New Zealand.
"This conference was created to provide a foundation for developing and implementing inventories to monitor changes and trends. It included recommendations formulated at the XVII I.U.F.R.O. World Congress in Kyoto, Japan in 1981. Because the wildland resources (timber, forage, wildlife, etc.) are being depleted most rapidly and are the most difficult to inventory, they have received the most attention"--Page 2.
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.