Riparian grasslands dominated by big sacaton (Sporobolus wrightii) once covered floodplains across the southwest, but have been reduced to some 5% of their historical extent. Sacaton stands that remain provide key resources for watershed function, wildlife, and livestock—yet may need special management to sustain these benefits. This report describes mapping methods and management recommendations that can be applied to riparian grasslands throughout the region. By examining sacaton grasslands in the Las Cienegas National Conservation Area, this project also refines methods for evaluating ecological condition, and provides managers at this site with detailed maps of both high-quality habitat and restoration needs.Download file (5.6 MB)
This user-friendly field guide can help people of all skill levels identify 50 native and exotic perennial grasses, plus several annual species. This guide grew out of citizen science involvement tracking grassland health at the Las Cienegas National Conservation Area in southeastern Arizona. Some species illustrated here occur across the West; others are local specialties.Download file (8 MB)
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)
This study analyzed 15 years of data on the endangered Gila topminnow (Poeciliopsis occidentalis occidentalis) to determine the population status and trend at Las Cienegas. We also tested alternative monitoring protocol to provide managers with more timely and reliable information on topminnow populations.Download file (1.5 MB)
Jointly authored by BLM and TNC, this report summarizes the monitoring information used and decision-making process for the 2005-2006 grazing plan at Las Ciénegas National Conservation Area. The report details how BLM, with input from partners, advisory teams, and the grazing permittee, are using upland monitoring data and pasture reconnaissance to make grazing management decisions.Download file (5 MB)
Summarizes work completed to assist the Bureau of Land Management in the development and implementation of a science-based adaptive management and monitoring program to evaluate progress toward objectives established in BLM’s Resource Management Plan. Includes 1) an analysis of data collected between 1995 and 2004 on the condition and trend of the NCA’s grasslands, 2) a review of monitoring protocols, and 3) an outline of the adaptive management process implemented by BLM in 2004/2005.Download file (1 MB)
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