Reports

Reports and documents by IAE staff.  

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Fritillaria gentneri population monitoring at Pickett Creek, Josephine County, Oregon

Denise E. L. Giles-Johnson, et al.   2013

Over the twelve years of this study we have noted a startling drop in the number of flowering individuals of Fritillaria gentneri at the Pickett Creek population in the Medford District of Oregon. At the initiation of the study, in 2002, the population numbered above 400 reproductive plants with an estimated population size of 13,294 […]

Lupinus oreganus on the BLM Roseburg District: population monitoring and restoration

Giles-Johnson, Denise E.L.   2013

This document reports preliminary findings and summarizes methods used in monitoring the threatened species Lupinus oreganus on the BLM Roseburg District. In 2013, the eleventh year of the project, we monitored L. oreganus populations by assessing foliar (leaf) cover (a measure of abundance) and counting racemes, and numbers of fruits produced at a total of […]

Demography and management of Willamette Daisy (Erigeron decumbens)

Denise E. L. Giles-Johnson   2013

The goal of this project is to combine careful demographic studies with experimental habitat management treatments in order to provide information on effective management of the endangered Willamette daisy (Erigeron decumbens ssp. decumbens). Specifically, we wish to assess the efficacy of various management techniques that will reduce the cover of invasive and woody plant species while […]

Climate change vulnerability assessment for West Eugene Wetland species

Thomas N. Kaye, Ian Pfingsten, Trevor Taylor and Emily Steel   2013

Local climate is one important factor that controls species distributions,range, phenology, and ability to compete with non-native species, among many effects. To preserve rare grassland species, manage and restore grassland habitat, and maintain communities that are resilient to climate change in the Pacific Northwest (PNW), land managers and restoration practitioners in the Willamette Valley (WV) need […]

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 […]

West Eugene Wetlands habitat sampling at Fir Butte, Oxbow West, and Vinci

Erin Gray and Scott Orr   2013

This document summarizes habitat monitoring in the West Eugene Wetlands on land managed by the BLM Eugene District. In 2013, we monitored Fir Butte, Oxbow West, and Vinci to assess whether they were within the habitat targets for Threatened and Endangered species. Monitoring in 2013 occurred in May, which was earlier than in previous years […]

Herbert Farm and Natural Area Restoration Plan – Phase 1: 2013-2017

Menke, Carolyn, Peter Moore and Melanie Gisler   2013

This 5-year restoration plan outlines habitat restoration activities to occur within the City of Corvallis Herbert Farm and Natural Area (HFNA). The HFNA is a 221 acre property in Benton County at the southern edge of Corvallis, and was purchased by the City of Corvallis (the City) in 2000. The Oregon Department of Fish and […]

Zena Forest: Richards Creek Riparian Restoration Plan Phase 1: 2014-2020

Moore, Peter, and Carolyn Menke   2013

This 7-year restoration plan outlines habitat restoration activities to occur within the Richards Creek catchment of Zena Forest. Zena Forest is a privately owned 1162 acre property in the Eola Hills, Polk County, Oregon, five miles north-west of Salem. The property is sustainably managed using uneven-age management and selective cutting. The Oregon Department of Fish […]

Population viability analysis for the clustered lady’s slipper (Cypripedium fasciculatum)

Erin C. gray, et al.   2012

The purpose of this project was to survey populations of clustered lady’s slipper in the Medford District BLM in order to expand on earlier analyses and better model the probability of extinction [Population Viability Analysis (PVA)] for this species. The data collected suggest an ongoing trend of population decline and local extinction. Our data set includes […]

Lupinus lepidus var. cusickii population monitoring in Denny Flat, Baker County, Oregon

Charlotte C. Trowbridge, et al.   2012

The purpose of this project was to locate and resample the previously established L. lepidus var. cusickii monitoring plots. Specifically, we compared current population size and plant performance with data from previous years and analyzed differences between plots that were fenced and plots that were open to ORVs and cattle. This will provide the BLM […]

Reintroduction of golden paintbrush to Oregon: 2012 annual report

Thomas N. Kaye, et al.   2012

This project supports the recovery of C. levisecta through full-scale reintroduction to prairie sites in Oregon’s Willamette Valley. This is a three-year project that begins with trial plantings at several locations to identify suitable locations for the species’ growth, followed by monitoring and additional plantings. This interim report summarizes information from the first full year […]

Effects of grazing and climate on Greene’s mariposa lily in the Cascade-Siskiyou National Monument

Carolyn Menke, et al.   2012

Calochortus greenei S. Wats., Greene’s mariposa lily, is listed by the United States Fish and Wildlife Service (USFWS) as a federal species of concern, and is proposed for listing as a threatened species in Oregon. It is also a Bureau of Land Management (BLM) special status species. This project aims to monitor  C. greenei populations […]

Abronia umbellata var. breviflora on the Oregon coast: Reintroduction and population monitoring

Denise E.L. Giles-Johnson and Thomas N. Kaye   2012

Pink sand-verbena (Abronia umbellata var. breviflora) is listed by the Oregon Department of Agriculture as endangered, and a Species of Concern by the U.S. Fish and Wildlife Service. Since the late 1970’s, the number of natural populations in Oregon has dwindled from around ten down to about five. The primary threats to the species include […]

Effects of prescribed fire for fuel reduction on Solanum parishii (Parish’s horse-nettle)

Erin C. Gray and Thomas N. Kaye   2012

This project evaluated the effects of fire and fire intensity on Solanum parishii (Parish’s horse-nettle) through comparisons of replicated burned and unburned plots at two sites in southern Oregon. This report also provides guidance for fuel reduction planning. Previous studies have shown that this species is among a group of plants that may benefit from wildfires (Copeland 2005), but […]

Population monitoring for Lupinus oreganus (Kincaid’s lupine) at Eagle’s Rest

Denise E. L. Giles-Johnson and Erin C. Gray   2012

This report documents the tenth year of monitoring for the Lupinus oreganus (Kincaid’s lupine) population located at Eagle’s Rest, managed by the Eugene District of the Bureau of Land Management (BLM). Monitoring will provide the BLM with information on population status and long-term trends and supply baseline data to help understand and predict the response […]