Name: Ecological Thresholds as a Basis for Defining Management Triggers for National Park Service Vital Signs?Case Studies for Dryland Ecosystems (en Inglés)
Price: 22300.00 CLP
Availability: InStock
Author: U. S. Department of the Interior
ISBN: 9781496183569

portada Ecological Thresholds as a Basis for Defining Management Triggers for National Park Service Vital Signs?Case Studies for Dryland Ecosystems (en Inglés)

Formato

Libro Físico

Editorial

Createspace Independent Publishing Platform

Autor

U. S. Department of the Interior

Idioma

Inglés

N° páginas

102

Encuadernación

Tapa Blanda

Dimensiones

27.9 x 21.6 x 0.5 cm

Peso

0.26 kg.

ISBN13

9781496183569

Categorías

Geografía física y topografía
Historia de la tierra

Ecological Thresholds as a Basis for Defining Management Triggers for National Park Service Vital Signs?Case Studies for Dryland Ecosystems (en Inglés)

U. S. Department Of The Interior (Autor) · Createspace Independent Publishing Platform · Tapa Blanda

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Reseña del libro "Ecological Thresholds as a Basis for Defining Management Triggers for National Park Service Vital Signs?Case Studies for Dryland Ecosystems (en Inglés)"

Threshold concepts are used in research and management of ecological systems to describe and interpret abrupt and persistent reorganization of ecosystem properties (Walker and Meyers, 2004; Groffman and others, 2006). Abrupt change, referred to as a threshold crossing, and the progression of reorganization can be triggered by one or more interactive disturbances such as land-use activities and climatic events (Paine and others, 1998). Threshold crossings occur when feedback mechanisms that typically absorb forces of change are replaced with those that promote development of alternative equilibria or states (Suding and others, 2004; Walker and Meyers, 2004; Briske and others, 2008). The alternative states that emerge from a threshold crossing vary and often exhibit reduced ecological integrity and value in terms of management goals relative to the original or reference system. Alternative stable states with some limited residual properties of the original system may develop along the progression after a crossing; an eventual outcome may be the complete loss of pre-threshold properties of the original ecosystem.