Reports

Reports and documents by IAE staff.  

Habitat sampling at Balboa, Fir Butte, Greenhill, and Vinci

Erin Gray   2012

This document summarizes habitat monitoring in the West Eugene Wetlands on land managed by the Bureau of Land Management Eugene District under a long term (10 year) land management implementation schedule, developed in 2005. In 2012, we monitored Balboa, Fir Butte, Greenhill, and Vinci to assess whether they were within the habitat targets for Threatened and Endangered species, as […]

Habitat sampling at Hansen, Long Tom, North Taylor, Speedway, and Turtle Swale

Erin C. Gray and Andrea S. Thorpe   2011

This document summarizes habitat monitoring in the West Eugene Wetlands on land managed by the Bureau of Land Management Eugene District under a long term (10 year) land management implementation schedule, developed in 2005. In 2011, we monitored Long Tom, North Taylor, Speedway, Turtle Swale, and two sites at Hansen to assess whether they were within the […]

Habitat sampling at Hanson, Long Tom, North Taylor, Speedway, and Turtle Swale

Andrea S. Thorpe   2008

The West Eugene Wetlands (WEW) Project is a cooperative venture by the Bureau of Land Management (BLM), Eugene District, and others to protect and restore wetland ecosystems in the southern Willamette Valley of Oregon. This unique program involves a partnership of federal, state, and local agencies and organizations to manage lands and resources in an […]

Habitat sampling at Fir Butte, Oxbow West, and Vinci

Andrea S. Thorpe   2007

The West Eugene Wetlands (WEW) Project is a cooperative venture by the Bureau of Land Management (BLM), Eugene District, and others to protect and restore wetland ecosystems in the southern Willamette Valley of Oregon. This unique program involves a partnership of federal, state, and local agencies and organizations to manage lands and resources in an […]

Threat assessment for Limnanthes pumila ssp. pumila on Table Rocks ACEC

Erin C. Gray, Denise E.L. Giles-Johnson, and M.A. Bahm   2015

Upper and Lower Table Rocks, located northeast of Medford, Oregon, are collectively designated as an Area of Critical Environmental Concern (ACEC) by the Bureau of Land Management (BLM). The Table Rocks are characterized primarily by vernal pool and mound habitats that support several rare species, including Limnanthes pumila ssp. pumila (née Limnanthes floccosa ssp. pumila), […]

Horse Rock Ridge habitat assessment: Second year report

Andrea S. Thorpe   2007

This report describes the first year of a three-year project at Horse Rock Ridge Area of Critical Environmental Concern/Research Natural Area (ACEC/RNA). The purpose of this project is to assess the current condition of high-priority ecosystems in the Horse Rock Ridge and prioritize native plant communities and invasive species for management action. High levels of […]

Controlling exotic grasses while maintaining native plant communities in fire- maintained wet prairies

Matt A. Bahm and Erin C. Gray   2015

Lomatium bradshawii is found in wet prairie habitats, and protected, good quality wet prairie remnants like the Fern Ridge Research Natural Area (RNA) are critical for the recovery of this species.  Wet prairie habitats at Fern Ridge RNA are currently managed using prescribed fire, which benefits the plant community by decreasing thatch and promoting germination by native species. Unfortunately, […]

Use of carbon addition in upland prairie restoration at Fern Ridge Natural Area

Erin C. Gray   2013

Fern Ridge Research Natural Area (RNA) is a cluster of remnant prairie sites within the southern Willamette Valley, managed by the Bureau of Land Management Eugene District. The Fern Ridge master plan provides these sites with wildlife habitat or environmentally sensitive land use designations. The current rare species management plan and Biological Opinion place primary emphasis on activities to benefit […]

Restoration of Willamette Valley upland prairies at Fern Ridge Lake

Erin C. Gray and Matt A. Bahm   2015

Fern Ridge Research Natural Area (RNA) is a cluster of remnant prairie sites within the southern Willamette Valley, managed by the Bureau of Land Management Eugene District. The Fern Ridge master plan provides these sites with wildlife habitat or environmentally sensitive land use designations. The current rare species management plan and Biological Opinion place primary emphasis on activities to benefit […]

Horse Rock Ridge Assessment, Seed Collection, and Restoration

Denise E. L. Johnson  

This report describes actions taken in 2012 and 2013 as part of a multi-year project at Horse Rock Ridge Area of Critical Environmental Concern/Research Natural Area (ACEC/RNA).  Started in 2006, the purpose of this project is to assess the current condition of high-priority ecosystems at Horse Rock Ridge, prioritize native plant communities and invasive species […]