Habitat and Land Use Influences on the Index of Biotic Integrity (IBI) in Headwater Streams of the Huron River and Raisin River Watersheds in South-eastern Michigan, USA PDF Download
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Author: Matthew J. Diana
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 91
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Book Description
Author: Matthew J. Diana
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 91
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Book Description
Author: Robert M. Hughes
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 720
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Book Description
Linkages among landscape and associated physiochemical and biological characteristics of rivers are explored in the proceedings of a symposium, organized to foster communication among researchers, resource managers, and policy makers in landscape ecology, geographical information systems, and other related fields.
Author: Robert J. Naiman
Publisher: Springer Science & Business Media
ISBN: 1461243823
Category : Technology & Engineering
Languages : en
Pages : 738
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Book Description
Conceptual separation of humans and natural ecosystems is reflected in the thinking of most natural resource management professions, including for estry, wildlife management, fisheries, range management, and watershed management (Burch 1971). Such thinking can deny the reality of the human element in local, regional, and global ecosystems (Bonnicksen and Lee 1982, Klausner 1971, Vayda 1977). As complex organisms with highly developed cultural abilities to modify their environment, humans directly or indirectly affect almost all terrestrial and aquatic ecosystems (Bennett 1976). Conse quently, information for managing watershed ecosystems is incomplete without consideration of human institutions and activities. Sociologists have studied the relationships between human societies and the land base or ecosystems on which they depend for over 60 years (Field and Burch 1990). These studies are distinguished by (1) a holistic perspec tive that sees people and their environments as interacting systems, (2) flex ible approaches that permit either the environment or human society to be treated as the independent variable in analyzing of society-environment re lations, and (3) accumulation of a substantial body of knowledge about how the future welfare of a society is influenced by its uses (or misuses) of land and water (Firey 1990).
Author:
Publisher:
ISBN:
Category : Agricultural conservation
Languages : en
Pages : 380
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Book Description
"The bibliography is a guide to recent scientific literature covering effects of agricultural conservation practices on fish and wildlife. The citations listed here provide information on how conservation programs and practices designed to improve fish and wildlife habitat, as well as those intended for other purposes (e.g., water quality improvement), affect various aquatic and terrestrial fauna"--Abstract.
Author: Vincent H. Resh
Publisher: Greenwood
ISBN:
Category : Science
Languages : en
Pages : 648
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Book Description
Author: Canada. Environment Canada
Publisher:
ISBN:
Category : Biodiversity
Languages : en
Pages : 56
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Book Description
"In 1992, Canada became the first industrialized country to ratify the United Nations Convention on Biological Diversity, which came into force on December 29, 1993 (United Nations Environmental Program 1994). The Convention recognizes that biological diversity is an important asset to current and future generations,affirms that conserving biociiversity is a common concernof mankind, and notes that it is vital to anticipate,prevent and attack the causes of biodiversity loss at theirsource"--Introd.
Author:
Publisher:
ISBN:
Category : Earth sciences
Languages : en
Pages : 2
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Book Description
Author: Rattan Lal
Publisher: CRC Press
ISBN: 1482257858
Category : Nature
Languages : en
Pages : 351
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Book Description
Phosphorus is an essential plant nutrient, but global population growth has dramatically reduced the availability of phosphorus fertilizer resources. Despite this scarcity, there remain numerous problems associated with the excessive and inappropriate use of phosphorus leading to non-point source pollution and eutrophication of natural waters. Identifying appropriate systems for managing soil phosphorus and reducing the risks of eutrophication are needed to minimize the environmental risks. This book focuses on the availability and recycling of phosphorus; regulatory and policy issues of sustainable phosphorus use; and water quality management in agroecosystems pertaining to phosphorus. Sections are dedicated to global phosphorus reserves; cycling and pathways of phosphorus; phosphorus in agriculture; human dimensions and policy intervention; and research and development priorities. Phosphorus is a finite but crucial resource and is an essential element to all life. Sub-optimal availability and nutrient imbalance in the root zone can adversely impact plant growth, and the quality of food and feed grown on these soils. However, the proven reserves of phosphorus can hardly be adequate for a few centuries only. Yet, its misuse and mismanagement has caused severe problems of eutrophication of water and pollution of the environment. Thus, judicious management of soil phosphorus is essential. This volume is specifically devoted to availability and recycling of phosphorus, regulatory/policy issues of sustainable use of phosphorus, and management in agroecosystems in the context of maximizing the use efficiency and minimizing the environmental risks of water quality.
Author: Ro McConnell
Publisher: Cambridge University Press
ISBN: 9780521280648
Category : Nature
Languages : en
Pages : 404
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Book Description
The result of compiling widely scattered research on fish in tropical rivers, lakes and seas. A comprehensive overview of the ecology of fish communities in freshwater as well as marine environments.
Author: Thomas F. Nalepa
Publisher: CRC Press
ISBN: 143985436X
Category : Nature
Languages : en
Pages : 820
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Book Description
The introduction and rapid spread of two Eurasian mussel species, Dreissena polymorpha (zebra mussel) and Dreissena rostriformis bugensis (quagga mussel), in waters of North America has caused great concern among industrial and recreational water users. These invasive species can create substantial problems for raw water users such as water treatment facilities and power plants, and they can have other negative impacts by altering aquatic environments. In the 20 years since the first edition of this book was published, zebra mussels have continued to spread, and quagga mussels have become the greater threat in the Great Lakes, in deep regions of large lakes, and in the southwestern Unites States. Quagga mussels have also expanded greatly in eastern and western Europe since the first book edition was published. Quagga and Zebra Mussels: Biology, Impacts, and Control, Second Edition provides a broad view of the zebra/quagga mussel issue, offering a historic perspective and up-to-date information on mussel research. Comprising 48 chapters, this second edition includes reviews of mussel morphology, physiology, and behavior. It details mussel distribution and spread in Europe and across North America, and examines policy and regulatory responses, management strategies, and mitigation efforts. In addition, this book provides extensive coverage of the impact of invasive mussel species on freshwater ecosystems, including effects on water clarity, phytoplankton, water quality, food web changes, and consequences to other aquatic fauna. It also reviews and offers new insights on how zebra and quagga mussels respond and adapt to varying environmental conditions. This new edition includes seven video clips that complement chapter text and, through visual documentation, provide a greater understanding of mussel behavior and distribution.
