Author :
Publisher : National Technical Info Svc
Page : 648 pages
File Size : 27,20 MB
Release : 1998
Category : Technology & Engineering
ISBN :
This document is a cooperative effort among fifteen Federal agencies and partners to produce a common reference on stream corridor restoration. It responds to a growing national and international interest in restoring stream corridors.
Author : Drew Harvell
Publisher : University of California Press
Page : 232 pages
File Size : 37,62 MB
Release : 2021-03-16
Category : Science
ISBN : 0520382986
There is a growing crisis in our oceans: mysterious outbreaks of infectious disease are on the rise. Marine epidemics can cause mass die-offs of wildlife from the bottom to the top of food chains, impacting the health of ocean ecosystems as well as lives on land. Portending global environmental disaster, ocean outbreaks are fueled by warming seas, sewage dumping, unregulated aquaculture, and drifting plastic. Ocean Outbreak follows renowned scientist Drew Harvell and her colleagues into the field as they investigate how four iconic marine animals—corals, abalone, salmon, and starfish—have been devastated by disease. Based on over twenty years of research, this firsthand account of the sometimes gradual, sometimes exploding impact of disease on our ocean’s biodiversity ends with solutions and a call to action. Only through policy changes and the implementation of innovative solutions from nature can we reduce major outbreaks, save some ocean ecosystems, and protect our fragile environment.
Author : Joseph M. Wheaton
Publisher : Usu Restoration Consortium
Page : 0 pages
File Size : 23,60 MB
Release : 2019-06-29
Category : Science
ISBN : 9781543972993
The purpose of this design manual is to provide restoration practitioners with guidelines for implementing a subset of low-tech tools--namely beaver dam analogues (BDAs) and post-assisted log structures (PALS)--for initiating process-based restoration in structurally-starved riverscapes. While the concept of process-based restoration in riverscapes has been advocated for at least two decades, details and specific examples on how to implement it remain sparse. Here, we describe 'low-tech process-based restoration' as a practice of using simple, low unit-cost, structural additions (e.g. wood and beaver dams) to riverscapes to mimic functions and initiate specific processes. Hallmarks of this approach include: - An explicit focus on the processes that a low-tech restoration intervention is meant to promote.- A conscious effort to use cost-effective, low-tech treatments (e.g., hand-built, natural materials, non-engineered, short-term design life-spans) because of the need to efficiently scale-up application.- 'Letting the system do the work', which defers critical decision making to riverscapes and nature's ecosystem engineers.
Author : National Research Council
Publisher : National Academies Press
Page : 580 pages
File Size : 20,19 MB
Release : 1992-01-01
Category : Technology & Engineering
ISBN : 9780309045346
Aldo Leopold, father of the "land ethic," once said, "The time has come for science to busy itself with the earth itself. The first step is to reconstruct a sample of what we had to begin with." The concept he expressedâ€"restorationâ€"is defined in this comprehensive new volume that examines the prospects for repairing the damage society has done to the nation's aquatic resources: lakes, rivers and streams, and wetlands. Restoration of Aquatic Ecosystems outlines a national strategy for aquatic restoration, with practical recommendations, and features case studies of aquatic restoration activities around the country. The committee examines: Key concepts and techniques used in restoration. Common factors in successful restoration efforts. Threats to the health of the nation's aquatic ecosystems. Approaches to evaluation before, during, and after a restoration project. The emerging specialties of restoration and landscape ecology.
Author : Ellen Hanak
Publisher : Public Policy Instit. of CA
Page : 500 pages
File Size : 43,41 MB
Release : 2011
Category : Business & Economics
ISBN : 1582131414
Author : National Research Council
Publisher : National Academies Press
Page : 611 pages
File Size : 23,28 MB
Release : 2009-03-17
Category : Nature
ISBN : 0309125391
The rapid conversion of land to urban and suburban areas has profoundly altered how water flows during and following storm events, putting higher volumes of water and more pollutants into the nation's rivers, lakes, and estuaries. These changes have degraded water quality and habitat in virtually every urban stream system. The Clean Water Act regulatory framework for addressing sewage and industrial wastes is not well suited to the more difficult problem of stormwater discharges. This book calls for an entirely new permitting structure that would put authority and accountability for stormwater discharges at the municipal level. A number of additional actions, such as conserving natural areas, reducing hard surface cover (e.g., roads and parking lots), and retrofitting urban areas with features that hold and treat stormwater, are recommended.
Author : American Water Resources Association. Conference
Publisher :
Page : 582 pages
File Size : 46,92 MB
Release : 1999
Category : Nature
ISBN :
Author : Speed, Robert
Publisher : UNESCO Publishing
Page : 204 pages
File Size : 11,53 MB
Release : 2016-09-19
Category :
ISBN : 9231001655
Author : D.B. Lister & Associates
Publisher : Government of Canada, Fisheries and Oceans, 1980 (1983 printing)
Page : 112 pages
File Size : 37,69 MB
Release : 1980
Category : Fish habitat improvement
ISBN :
Author : Harold Mooney
Publisher : Univ of California Press
Page : 1008 pages
File Size : 41,59 MB
Release : 2016-01-19
Category : Nature
ISBN : 0520278801
This long-anticipated reference and sourcebook for CaliforniaÕs remarkable ecological abundance provides an integrated assessment of each major ecosystem typeÑits distribution, structure, function, and management. A comprehensive synthesis of our knowledge about this biologically diverse state, Ecosystems of California covers the state from oceans to mountaintops using multiple lenses: past and present, flora and fauna, aquatic and terrestrial, natural and managed. Each chapter evaluates natural processes for a specific ecosystem, describes drivers of change, and discusses how that ecosystem may be altered in the future. This book also explores the drivers of CaliforniaÕs ecological patterns and the history of the stateÕs various ecosystems, outlining how the challenges of climate change and invasive species and opportunities for regulation and stewardship could potentially affect the stateÕs ecosystems. The text explicitly incorporates both human impacts and conservation and restoration efforts and shows how ecosystems support human well-being. Edited by two esteemed ecosystem ecologists and with overviews by leading experts on each ecosystem, this definitive work will be indispensable for natural resource management and conservation professionals as well as for undergraduate or graduate students of CaliforniaÕs environment and curious naturalists.
