A Hierarchical Framework of Aquatic Ecological Units in North America (nearctic Zone)

A Hierarchical Framework of Aquatic Ecological Units in North America (nearctic Zone) PDF

Author: James R. Maxwell

Publisher: Diane Publishing Company

Published: 1996

Total Pages: 72

ISBN-13: 9780788173745

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Presents a hierarchical framework for classifying and mapping aquatic ecological units based on biophysical factors that display low temporal variability at a given map scale, and strongly affect the types of ecosystem patterns and processes that occur in aquatic systems. It addresses the 3 major aquatic systems that occur widely: the riverine system of streams and rivers; the lacustrine system of lakes and open-water wetlands; and the ground-water system of aquifers. Hydrogeomorphic criteria are also proposed to refine existing wetlands classifications. Ensures a consistent framework in the classifying and mapping of aquatic systems. Charts and tables.

A Practitioner's Guide to Freshwater Biodiversity Conservation

A Practitioner's Guide to Freshwater Biodiversity Conservation PDF

Author: Nicole Silk

Publisher: Island Press

Published: 2013-04-10

Total Pages: 408

ISBN-13: 1597266191

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A Practitioner's Guide to Freshwater Biodiversity Conservation brings together knowledge and experience from conservation practitioners and experts around the world to help readers understand the global challenge of conserving biodiversity in freshwater ecosystems. More importantly, it offers specific strategies and suggestions for managers to use in establishing new conservation initiatives or improving the effectiveness of existing initiatives. The book: offers an understanding of fundamental issues by explaining how ecosystems are structured and how they support biodiversity; provides specific information and approaches for identifying areas most in need of protection; examines promising strategies that can help reduce biodiversity loss; and describes design considerations and methods for measuring success within an adaptive management framework. The book draws on experience and knowledge gained during a five-year project of The Nature Conservancy known as the Freshwater Initiative, which brought together a range of practitioners to create a learning laboratory for testing ideas, approaches, tools, strategies, and methods. For professionals involved with land or water management-including state and federal agency staff, scientists and researchers working with conservation organizations, students and faculty involved with freshwater issues or biodiversity conservation, and policymakers concerned with environmental issues-the book represents an important new source of information, ideas, and approaches.