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March 1 - 31, 2004

1. Highlights of GCMRC activities:

Remote Sensing in the Grand Canyon: A photo of the Grand Canyon appeared on the cover of the February 2004 issue of Photogrammetric Engineering & Remote Sensing, the premier publication of the American Society for Photogrammetry and Remote Sensing. The explanation of the cover image describes a remote sensing mission conducted by the USGS - Grand Canyon Monitoring and Research Center (GCMRC) in conjunction with Photo Science, Inc. to collect high-resolution color aerial photography of 11 sites throughout the Grand Canyon. Contact: Michael Liszewski, Flagstaff, AZ, 928-556-7458, mjliszew@usgs.gov.

Plans for Monitoring and Research on the Colorado River: USGS scientists participated in a meeting of the Glen Canyon Dam Adaptive Management Program's Technical Work Group (TWG) in Phoenix, AZ, February 2-3. Among important items discussed were preliminary recommendations to the Adaptive Management Work Group regarding river flow patterns for 2005 as well as new kinds of experimentation following the current two year experimental operations approved by the Secretary of Interior in December of 2002. USGS - Grand Canyon Monitoring and Research Center Chief Jeff Lovich presented information regarding the development of a new 5 year strategic plan for the Science Center as well as timelines for development of more detailed plans for monitoring and research activities in the Colorado River ecosystem in Glen Canyon National Recreation Area and Grand Canyon National Park. Contact: Steve Gloss, Tucson, AZ, 520-670-5567, sgloss@usgs.gov.

Saltcedar Paper Published:USGS cooperator, Theodore Kennedy with the Northern Arizona University-Colorado Plateau Cooperative Ecosystems Studies Unit, published an article in the latest issue of the journal Freshwater Biology entitled, Saltcedar (Tamarix ramosissima) invasion alters organic matter dynamics in a desert stream. Freshwater Biology 49 (1) 65-76.]. A photo of the study site was featured on the cover of this issue. Contact: Theodore Kennedy, Flagstaff, AZ, 928-556-7284, tkennedy@usgs.gov.

2. GCMRC in the news:

USGS scientist Lew Coggins was interviewed by a reporter from the Flagstaff Daily Sun regarding research related to mechanical removal of trout in the Grand Canyon. Trout are not native to the Grand Canyon and prey upon the federally endangered humpback chub. USGS scientists are removing trout from a section of the Colorado River in Grand Canyon National Park to determine if the chub population will benefit from reduction of predators. Contact: Lew Coggins, Flagstaff, AZ, 928-556-7376, lcoggins@usgs.gov.

3. New publications received by the GCMRC library:

  1. Leap, L.M. and J.L. Dierker. 2003. Archaeological Site Monitoring and Management Activities along the Colorado River Corridor in Grand Canyon National Park. RCMP report No. 89, Flagstaff, Arizona. Electronic Access: http://www.gcmrc.gov/library/reports/cultural/Archaeology/Leap2003.pdf
  2. Leap, L.M. and J.L. Kunde. 2000. 2000 Summary Report: Archaeological Site Monitoring and Management Along the Colorado River Corridor in Grand Canyon National Park. RCMP report No. 68, Flagstaff, Arizona. Electronic Access: http://www.gcmrc.gov/library/reports/cultural/Archaeology/Leap2000.pdf
  3. Yard, H.K., C. Van Riper III, B.T. Brown, and M.J. Kearsley. 2004. Diets of Insectivorous Birds along the Colorado River in Grand Canyon, Arizona. The Condor 106 (1): 106-115. Electronic Access: http://www.gcmrc.gov/library/reports/biological/terrestrial/Yard2004.pdf
  4. Hueftle, Susan. 2000. Results of Lake Powell-Tailwater monitoring. Grand Canyon Monitoring and Research Center. Annual IWQP Report. Electronic Access: http://www.gcmrc.gov/library/reports/biological/Lake_Powell/Hueftle2000.pdf
  5. Johnstone, Helene C, Matt Laurette and Melissa Trammell. 2003. Native Fish Monitoring Activities in the Colorado River within Grand Canyon during 2002. Annual Report. Contract No. WRAG0046 Electronic Access: http://www.gcmrc.gov/library/reports/biological/Fish_studies/swca/01WRAG0046/johnstone2003.pdf
  6. Topping, David J., John C. Schmidt and L.E. Vierra, Jr. 2003. Computation and Analysis of the Instantaneous-Discharge Record for the Colorado River at Lees Ferry, Arizona-May 8, 1921, through September 30, 2000. USGS Professional Paper 1677. Electronic access: http://geopubs.wr.usgs.gov/open-file/pp1677/
  7. Barnhardt, Walter, Robert Kayen, David Rubin, and Diane Minasian. 2001. The internal structure of sand bars on the Colorado River, Grand Canyon, as determined by ground-penetrating radar. U.S. Geological Survey Open-File Report 01-425. Electronic access: http://geopubs.wr.usgs.gov/open-file/of01-425/
  8. Rogers, R. Scott, William R. Persons, T. McKinney. 2003. Effects of a 31,000-cfs spike flow and low steady flows on benthic biomass and drift composition in the Lee's Ferry tailwater. Cooperative Agreement No. 1425-98-FC-22390 (Mod 3). Electronic Access: http://www.gcmrc.gov/library/reports/biological/Foodbase/Rogers2003.pdf
  9. Rogers, R. Scott, David W. Speas, David L. Ward and Andy S. Makinster. 2003. Grand Canyon Long-term Non-native Fish Monitoring, 2002 Annual Report. Cooperative Agreement #02WRAG0030. Electronic Access: http://www.gcmrc.gov/library/reports/biological/Fish_studies/AZGame&Fish/2003/Rogers2003a.pdf
  10. Walters, Carl and Josh Korman. 1999. Cross-Scale Modeling of Riparian Ecosystem Responses to Hydrologic Management. Ecosystems 2(5): 411-421. Electronic Access: http://www.gcmrc.gov/library/reports/conceptual_model/walters1999a.pdf
  11. Walters, Carl and Josh Korman. 1999. Linking recruitment to trophic factors: revisiting the Beverton-Holt recruitment model from a life history and multispecies perspective. Reviews in Fish Biology and Fisheries 9(2): 187-202. Electronic Access: http://www.gcmrc.gov/library/reports/conceptual_model/walters1999.pdf
  12. Webb, Robert H., Peter G. Griffiths, and Tillie A. Klearman. 2003. Frequency of Debris Flows in Grand Canyon. USGS Fact Sheet 065-03. Electronic Access: http://www.gcmrc.gov/library/reports/physical/Coarse_Sed_Webb/Webb2003.pdf
  13. Wright, Patrick, Bill Geottlicher, and Mike Pucherelli. 2003. The Development of a 97,000 cfs Flow Line within the Grand Canyon using Geographic Information System Technology. Technical Memorandum No. 8260-03-04. Remote Sensing and GIS Group, Technical Service Center, Bureau of Reclamation, Denver, Colorado. Electronic Access: http://www.gcmrc.gov/library/reports/GIS/Wright2003.pdf

Contact Stephanie Wyse at the GCMRC library (928-556-7373) to obtain reprints of publications not available electronically.