Fecal Coliform Bacteria TMDL for the Wintering River in McHenry and McLean Counties, North Dakota PDF Download

Author: Heather A. Husband Duchscherer
Publisher:
ISBN:
Category : Enterobacteriaceae
Languages : en
Pages : 64

View

Book Description

Author: M. L. Rowe
Publisher:
ISBN:
Category : Groundwater
Languages : en
Pages : 52

View

Book Description

Author: Heather A. Husband Duchscherer
Publisher:
ISBN:
Category : Water
Languages : en
Pages : 98

View

Book Description

Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 1136

View

Book Description

Author: Shelby D. Gerking
Publisher: Elsevier
ISBN: 1483288528
Category : Nature
Languages : en
Pages : 443

View

Book Description
Feeding Ecology of Fish establishes a comprehensive framework for the variable ecological patterns exemplified by feeding fishes. The author, a former president of the American Fisheries Society, devotes special attention to synthesizing empirical studies in categorizing feeding patterns. This book shows how remarkably adaptable fish can be with regard to selecting food, often from trophic levels not usually occupied. Relying on a thorough literature survey, Feeding Ecology of Fish will be an invaluable reference for both fishery scientists and ecological theorists. - Organization by trophic level - Emphasis on empirical studies - Broad coverage of a diverse field

Author: Robert J. Behnke
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 310

View

Book Description

Author: Robert Naiman
Publisher: Springer Science & Business Media
ISBN: 9780387952468
Category : Science
Languages : en
Pages : 734

View

Book Description
As the vast expanses of natural forests and the great populations of salmonids are harvested to support a rapidly expanding human population, the need to understand streams as ecological systems and to manage them effectively becomes increasingly urgent. The unfortunate legacy of such natural resource exploitation is well documented. For several decades the Pacific coastal ecoregion of North America has served as a natural laboratory for scientific and managerial advancements in stream ecology, and much has been learned about how to better integrate ecological processes and characteristics with a human-dominated environment. These in sightful but hard-learned ecological and social lessons are the subject of this book. Integrating land and rivers as interactive components of ecosystems and watersheds has provided the ecological sciences with impor tant theoretical foundations. Even though scientific disciplines have begun to integrate land-based processes with streams and rivers, the institutions and processes charged with managing these systems have not done so successfully. As a result, many of the watersheds of the Pacific coastal ecoregion no longer support natural settings for environmental processes or the valuable natural resources those processes create. An important role for scientists, educators, and decision makers is to make the integration between ecology and con sumptive uses more widely understood, as well as useful for effective management.

Author: Heather A. Husband Duchscherer
Publisher:
ISBN:
Category : Bacterial pollution of water
Languages : en
Pages : 73

View

Book Description

Author: Robert J. Naiman
Publisher: Springer Science & Business Media
ISBN: 1461243823
Category : Technology & Engineering
Languages : en
Pages : 738

View

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: Robert C. Ehrhart
Publisher:
ISBN:
Category : Grazing
Languages : en
Pages : 104

View

Book Description