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San Pedro River Watershed Maps (October 2008)

Series of 4 map exhibits illustrating conservation-related data on the status of this internationally-recognized desert river and riparian corridor. Maps include both the U.S. and Mexico portions of the San Pedro watershed depicting the following themes: Conservation Investments; Riparian Ecological Condition; Current and Formerly Perennial Stream Reaches; and a Water Budget.

Download file (21 MB)

San Pedro River Wet-Dry Maps (August 2008)

The San Pedro River wet/dry mapping dataset is a community effort to track the river’s health by monitoring the persistence of surface water during the driest time of each year. It is created by recording the end points of every wet section of the San Pedro River during June each year. Maps depict the wet portion of the San Pedro River.

• 2008 Wet-Dry Maps (updated 8/26/2008)
• 2007 Wet-Dry Maps (updated 4/14/2008)

Arizona Natural Infrastructure Composite (May 2008)

GIS data set that integrates 10 local, state, and regional datasets which identify open space lands and sensitive biological lands. This data set is a composite or simplification of the source data sets – the boundaries of all individual data layers have been dissolved into one composite data layer. Note: We did not integrate wildlife linkages data from 2 of the studies in this composite layer because we are awaiting to obtain permission from the source agencies.

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Ecological Implications of Verde River Flows (February 2008)

Presents a literature review and results of a May 2007 workshop where 35 subject experts from 16 agencies and institutions synthesized the state of knowledge for central Arizona’s Verde River. Report describes the river’s ecosystem, including its hydrology, geomorphology, riparian, and aquatic habitats, and fish and wildlife species – and how components would respond to changes in surface- and groundwater flows.

• Executive Summary (2.7 MB)
• Ecological Flows Report (4.1 MB)

State of the Las Ciénegas NCA, Part III: Condition of Riparian Habitats and Channel Geomorphology (February 2008)

Presents information on the condition of riparian habitats and compares these with objectives established in BLM’s Resource Management Plan. Includes 1) an analysis of data collected between 1990 and 2006 on the condition of the NCA’s riparian forests and stream channel geomorphology, 2) an ecological state-and-transition model that describes relationships between habitat types and disturbance forces, and 3) a review of monitoring protocols with options for making monitoring more informative and efficient.

Download file (7.4 MB)