Reports and documents by IAE staff.
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This report summarizes Abronia umbellata subsp. breviflora (pink sand-verbena) research along the Oregon coast since 1997, including seeding and transplantation experiments and population monitoring at several beach and dune habitats. In 2015 our actions and observations included activities at: Tahkenitch, Siltcoos Creek, Overlook North and Overlook South managed by the Forest Service, and Coos Bay North Spit and New River managed by the Coos Bay BLM.
Assessing the status and extent of Lupinus lepidus var. cusickii in Denny Flat, Baker County, OregonGray, E.C., M.A. Bahm and D.E.L. Giles 2015
We conducted a full census of the 5 known Lupinus lepidus var. cusickii sites managed by the Vale District of the Bureau of Land Management. In 2015, we also remonitored permanent monitoring transects and established several new transects to examine plant community and L. lepidus var. cusickii population trends over time. This species can have […]
This report covers efforts to introduce and augment populations of four rare species to sites in the West Eugene Wetlands. The report details the current status of seed production beds at the National Resources Conservation Service Plant Materials Center, which include federally listed Bradshaw’s lomatium, Kincaid’s lupine, Willamette daisy, and Bureau sensitive shaggy horkelia. The […]
This report covers habitat restoration actions undertaken at 15 Bureau of Land Management sites in the West Eugene Wetlands. The actions benefit a host of rare plants, including federally listed Bradshaw’s lomatium, Willamette daisy, Kincaid’s lupine. Actions included removal of encroaching woody species, tree girdling, and fence repair.
Habitat and population monitoring for Chloropyron maritimum ssp. palustre and Limonium californicum on the Coos Bay North SpitGiles, Denise E.L., Erin C. Gray, Matt A. Bahm, and Thomas N. Kaye 2015
EXECUTIVE SUMMARY In 2015 the estimated number of Chloropyron maritimum ssp. palustre plants on the Coos Bay North Spit land managed by the Coos Bay District of the Bureau of Land Management is ~1,516,000 (462,000 in the protected area and 1,053,000 in the unprotected area). This is the on par with the highest population estimate […]
Practical guidelines for wetland prairie restoration in the Willamette Valley, Oregon: Field-tested methods and techniquesKrueger, Jeffrey J., S.T. Bois, T.N. Kaye, D.M. Steeck, T.H. Taylor 2014
The science of wetland prairie restoration has made significant strides in recent years, building on lessons learned locally in Oregon and Washington and on applied research and practice from around the country. The content of this guide is based on a variety of sources including the findings of several EPA funded replicated field experiments conducted […]
This report documents research conducted on population dynamics and habitat for of Kincaid’s lupine (Lupinus oreganus), a threatened species in the legume family, and Hitchcock’s blue-eyed grass (Sisyrinchium hitchcockii), a federal species of concern, at Oak Basin. Kincaid’s lupine serves as the primary larval host plant for the endangered Fender’s blue butterfly (Icaricia icarioides fenderi). […]
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 2014, we monitored Long Tom, Oxbow West, Speedway, and Vinci to assess whether they were within the habitat targets for Threatened and Endangered […]
Assessing the status and extent of Lupinus lepidus var. cusickii in Denny Flat, Baker County, OregonErin Gray, Denise Giles-Johnson, and Matt Bahm 2014
In 2014, we resurveyed extant subpopulations of Cusick’s lupine in Denny Flat (those surveyed in 2010), to yield updated information on the status and extent of this population. In total, approximately 152 acres of L. lepidus var. cusickii habitat were surveyed. Surveyed areas included sites with and without long-term monitoring plots, conducting a complete census […]