Key Readings

(58) results
1995 EIS on Glen Canyon Dam Operations
The Glen Canyon Dam Final EIS analyzed baseline impacts of dam operations on downstream environmental and cultural resources from 1963 to 1990, and compared those baseline impacts to possible alternative operations of Glen Canyon Dam, including three alternatives that would provide steady flows from the dam and six alternatives that would provide various levels of […]
2020 Healy et al., Remarkable Response of Native Fishes to Invasive Trout Suppression Varies with Trout Density, Temperature, and Annual Hydrology
ABSTRACT: Recovery of imperiled fishes can be achieved through suppression of invasives, but outcomes may vary with environmental conditions. We studied the response of imperiled desert fishes to an invasive brown (Salmo trutta) and rainbow trout (Oncorhynchus mykiss) suppression program in a Colorado River tributary, with natural flow and longitudinal variation in thermal characteristics. We […]
Origins and Legal Basis of the GCDAMP
Links to GCES Reports
2019 USGS Managing Sand fs20193054
2018 Geomorphology of the Colorado River in Grand Canyon—what have we learned and what do we need to know?
2016 Glen Canyon Dam Adaptive Management Program Assessment Report
2015 Runge, et al., Decision Analysis to Support Development of the Glen Canyon Dam Long-Term Experimental and Management Plan
2015 Melis, Walters and Korman, Surprise and Opportunity for Learning in Grand Canyon, the Glen Canyon Dam Adaptive Management Program
2015 Adaptive Management, a Personal History
2015 AMWG Charter Renewal
ABSTRACT: This document renews the original 1997 Charter authorizing the Adaptive Management Work Group (AMWG), a federal advisory committee functioning as part of the Glen Canyon Dam Adaptive Management Program (GCDAMP). The 1992 Grand Canyon Protection Act directs the Secretary of the Interior to operate Glen Canyon Dam in such a manner as to protect, […]
2015 Finch et al., Assessing Juvenile Native Fish Demographic Responses to a Steady Flow Experiment in a Large Regulated River
2014 GCMRC status report
2014 Jack Schmidt Farewell
2014 Colorado River Campsite Monitoring, Grand Canyon National Park, Arizona, 1998–2012
2014 Yackulic, Yard, Korman and Van Haverbeke, A Quantitative Life History of Endangered Humpback Chub that Spawn in the Little Colorado River, Variation in Movement, Growth, and Survival
While the ecology and evolution of partial migratory systems (defined broadly to include skip spawning) have been well studied, we are only beginning to under- stand how partial migratory populations are responding to ongoing environmen- tal change. Environmental change can lead to differences in the fitness of residents and migrants, which could eventually lead to […]
2012 Some thoughts about the November 19 High Flow Experimental Release
2011 Some thoughts about the Glen Canyon Dam Adaptive Management Program and GCMRC’s role in that program
2010 Collaborative Planning and Adaptive Management in Glen Canyon: A Cautionary Tale
2010 Confluence of Values The Role of Science and Native Americans in the Glen Canyon Dam Adaptive Management Program
2009 Federal Advisory Committees: An Overview
2008 Pratson et al., Timing and Patterns of Basin Infilling as Documented in Lake Powell During a Drought
2008 Beyond Conjecture: Learning About Ecosystem Management from the Glen Canyon Dam Experiment
2008 Collaborative Management of Glen Canyon Dam: The Elevation of Social Engineering Over Law
2008 The Everglades Ecosystem and the Politics of Nature
2007 ROD Colorado River Interim Guidelines for Lower Basin Shortages and the Coordinated Operations for Lake Powell and Lake Mead Final EIS
2007 The state of the Colorado River ecosystem in Grand Canyon: Lessons from 10 years of adaptive ecosystem management
2006 Glen Canyon Unit
2005 Environmental History of the Colorado River: The Changing Focus of Science
2005 The State of the Colorado River Ecosystem in Grand Canyon A Report of the Grand Canyon Monitoring and Research Center 1991–2004
2003 Fairley, Changing River, Time, Culture, and the Transformation of Landscape in the Grand Canyon
ABSTRACT: This book is a response to the USGS’s call for a research design that could be used as a framework for prioritizing cultural resources in the Colorado River ecosystem below Glen Canyon Dam. Changing River includes summaries of current environmental conditions and previous research and brings together diverse archaeological opinions about Grand Canyon’s human […]
2001 Strategic Plan Glen Canyon Dam Adaptive Management Program Final Draft
2000 Thompson and Potochnik, Development of a Geomorphic Model to Predict Erosion of Pre-Dam Colorado River Terraces Containing Archaeological Resources
2000 Ecosystem Modeling for Evaluation of Adaptive Management Policies in the Grand Canyon
2000 Doelle, Final Report, Cultural Resource Program Assessment
ABSTRACT: As called for in its operational plan, the Cultural Program of the Grand Canyon Monitoring and Research Center convened a Protocol Evaluation Panel (PEP). The Bureau of Reclamation co-sponsored this PEP. In 1994, a Programmatic Agreement (PA) was developed by the Advisory Council on Historic Preservation with the following parties: Bureau of Reclamation, National […]
1999 Downstream: Adaptive Management of Glen Canyon Dam and the Colorado River Ecosystem
1999 Conservation Ecology: Appraising Adaptive Management
1998 Schmidt, Webb, Valdez, Marzolf and Stevens. Science and Values in River Restoration in the Grand Canyon
1997 Challenges in adaptive management of riparian and coastal ecosystems
1997 AMWG Charter Original
ABSTRACT: This document establishes the Adaptive Management Work Group (AMWG), a federal advisory committee functioning as part of the Glen Canyon Dam Adaptive Management Program (GCDAMP). The 1992 Grand Canyon Protection Act directs the Secretary of the Interior to operate Glen Canyon Dam in such a manner as to protect, mitigate adverse impacts to, and […]
1996 River Resource Management in the Grand Canyon
1996 ROD on Glen Canyon Dam Operations Final EIS
The 1996 RoD formally adopted the preferred alternative from the 1995 EIS stipulating the Modified Low Fluctuating Flow Alternative for operating Glen Canyon Dam. It also initiated the Glen Canyon Dam Adaptive Management Program (GCDAMP) by establishing the Adaptive Management Work Group (AMWG) under the Federal Advisory Committee Act (FACA). AMWG’s stipulated purpose was to […]
1995 Programmatic Agreement on Cultural Resources
ABSTRACT: This is the original cultural resources compliance document that was prepared in conjunction with the 1996 Environmental Impact Statement on the operations of Glen Canyon Dam. Broadly, it stipulated that cultural resources along the Colorado River corridor would be identified and evaluated for National Register eligibility, a Monitoring and Remedial Action Plan would be […]
1995 Operation of Glen Canyon Dam Colorado River Storage Project Arizona Final EIS
This final environmental impact statement (EIS) analyzes the impacts of operations from 1963 to 1990 (baseline conditions) and alternative operations of Glen Canyon Dam on downstream environmental and cultural resources of Glen and Grand Canyons. Alternative operations evaluated include three that would provide steady flows and six, including no action, that would provide various levels of fluctuating flows. Additional measures have been combined with the alternative operations, where appropriate, either to mitigate adverse impacts of the alternative or to enhance...
1994 Review of the Draft Federal Long-Term Monitoring Plan for the Colorado River below Glen Canyon Dam
1990 Large-Scale Management Experiments and Learning by Doing
1990 Wegner, A Brief History of the Glen Canyon Environmental Studies. In National Research Council, Colorado River Ecology and Dam Management Proceedings of a Symposium May 24-25, 1990, Santa Fe, New Mexico
1988 Glen Canyon Environmental Studies: Executive Review Committee Final Report
This report contains recommendations of the Executive Review Committee (ERC) (a management and policy level group representing the Bureau of Reclamation (BOR), National Park Service (NPS), Fish & Wildlife Service (FWS), the Department of the Interior (USDI),and the Western Area Power Administration (Western)) to the Depart- ment of the Interior regarding future actions to be taken based on the results of the Glen Canyon Environmental Studies.
1987 River and Dam Management: A Review of the Bureau of Reclamation’s Glen Canyon Environmental Studies
1987 Bishop, et al., Glen Canyon Dam Releases and Downstream Recreation, An Analysis of User Preferences and Economic Values
ABSTRACT: This study assesses the impact of Glen Canyon Dam releases on rafting (white-water boating and day-use rafters) and angling recreationists in Glen Canyon and Grand Canyon National Park using attribute and contingent valuation surveys. Several sources of information were utilized in this study: knowledgeable people (fishing quides, rafting guides, resource managers, and GCES researchers), […]
1986 Adaptive Management of Renewable Resources An overview of an IlASA book
1981 Howard and Dolan, Geomorphology of the Colorado River in the Grand Canyon
1980 Turner and Karpiscak, Recent Vegetation Changes Along the Colorado River Between Glen Canyon Dam and Lake Mead, Arizona
1978 Holling et al Adaptive Environmental Assessment and Management
1976 Carothers and Aitchison, An Ecological Survey of the Riparian Zone
1974 Dolan Howard and Gallenson Man’s Impact on the Colorado River in the Grand Canyon