2022 Southwestern Willow Flycatcher

An ArcGIS Online (AGOL) page containing historical and predictive maps developed by James Hatten of the USGS for the southwestern willow flycatcher habitat across the southwestern United States. The model outputs a range of probabilities for suitable and less suitable habitat in 20% probability classes. This project shows that the satellite model adequately predicts flycatcher habitat rangewide, but it lacks the ability to predict which patches will be occupied in a given year.

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Colorado Parks & Wildlife - Wildlife Species Profiles & Habitat Scorecards

The purpose of these profiles is to provide landowners and land managers with easy-to-use guidelines for understanding habitat needs of priority wetland-dependent wildlife. 

Please note that these profiles are limited to birds found in Mesa & Delta Counties.

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Tamarisk biocontrol alters bird community composition in the absence of cottonwood and willow vegetation
Invasive species disturb ecosystems and threaten biodiversity. Invasive species management, such as biological control, can cause additional disturbances, so quantifying how native species respond to invasive control is important to inform best management practices.   Mahoney et al. quantified southwestern bird communities in sites that varied in the amount of the non-native plant tamarisk (Tamarix spp.), before and after biological control efforts.
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Lessons Learned for Successful Watershed Partnerships in the Colorado River Basin

What are the key ingredients of successful collaborative partnerships? What worked well and what did not? If we had to do it all over again, what would we do differently? This document, based on interviews with stakeholders from 11 watershed partnerships in the Colorado River Basin, discusses the successes and challenges encountered from initial partnership formation to maintaining momentum over the years. It informs how RiversEdge West and other partners can continue contributing to the long-term success and viability of watershed partnerships.

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Renewing Our Rivers: Stream Corridor Restoration in Dryland Regions
Our rivers are in crisis and the need for river restoration has never been more urgent. Water security and biodiversity indices for all of the world’s major rivers have declined due to pollution, diversions, impoundments, fragmented flows, introduced and invasive species, and many other abuses.   Developing successful restoration responses are essential. Renewing Our Rivers addresses this need head-on with examples of how to design and implement stream-corridor restoration projects.
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Field Guide for Managing Kochia

Plant guide from the USDA-Natural Resources Conservation Service on managing Kochia. 

Casey, P.A. 2009. Plant guide for kochia (Kochia scoparia). USDA-Natural Resources Conservation Service, Kansas Plant Materials Center. Manhattan, KS.

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Low-Water Native Plants for Colorado Gardens - Western Slope: Below 7,000'

Many people have an interest in landscaping with native plants. The purpose of this booklet is to help people make the most successful choices, based on their location in Colorado. 

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Bringing Birds Home

Bringing Birds Home is a manual that describes how to proactively improve riparian habitat for bird species in Mesa County, Colorado.  

This guide was made possible by a grant from the Bird Conservancy of the Rockies and was produced by RiversEdge West, with help from the Grand Valley Audubon Society, Tucson Audubon Society, and Audubon Arizona.

 
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How to Tell the Difference Between Russian Olive and Silverleaf Buffaloberry

This 1-page handout describes the differences between invasive Russian olive and native silverleaf buffaloberry. Photos of distinctive characteristics are provided. 

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Waterjet Stinger
This document describes how to use a stinger, a tool to plant dormant unrooted cuttings of willows, cottonwoods, dogwoods, and other species.
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Riparian Restoration Cost Calculator

This resource developed by RiversEdge West (formerly Tamarisk Coalition) allows users to estimate tamarisk and Russian olive removal and restoration costs based on existing site parameters. 

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Suggested Methodologies for Cottonwood Pole, Willow Whip, and Longstem Plantings

This guide describes techniques for harvesting, storing, and planting various types of plant materials, including dormant cottonwood pole cuttings, willow whip cuttings, and longstem products. This guide was prepared by RiversEdge West (formerly Tamarisk Coalition), based on input provided by Los Lunas Plant Materials Center.  

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Wide-area estimates of saltcedar (Tamarix spp.) evapotranspiration on the lower Colorado River measured by heat balance and remote sensing methods

Nagler et al. test the assumption that removing saltcedar (Tamarix spp.) will save water and create environments more favourable to these native species. They compared sap flux measurements of water used by native species in contrast to saltcedar, and compared soil salinity, ground water depth and soil moisture across a gradient of 200–1500 m from the river's edge on a floodplain terrace at Cibola National Wildlife Refuge (CNWR).

Phreatophytes Under Stress: Transpiration and Stomatal Conductance of Saltcedar (Tamarix spp.) in a High-Salinity Environment

Glenn et al. measure transpiration and stomatal conductance to investigate the environmental constraints on an arid-zone riparian phreatophtye, saltcedar (Tamarix ramosissima and related species and hybrids), growing over a brackish aquifer along the Colorado River in the western U.S. Depth to groundwater, meteorological factors, salinity and soil hydraulic properties were compared at stress and non-stressed sites that differed in salinity of the aquifer, soil properties and water use characteristics, to identify the factors depressing water use at the stress site.

​​​​​​​Assessing the Potential Impact of Invasive Species Water Use on the Lower Colorado River

In this 2014 poster, Ryan and Harris report preliminary results on a study of evapotranspiration (ET) at the Cibola National wildlife Refuge. They ask whether groundwater responds to a massive change in ET of surface vegetation and assess baseline well and evapotranspiration data as a proxy for the anticipated tamarisk beetle migration.