Technical Library

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Recovery of the Unique and Threatened Streaked Horned Lark in the Willamette Valley, Oregon: The Need for a Paradigm Shift to Financial Incentives and Targeted Regulation

The purpose of this opinion paper is to 1) provide context and critique of the recent Streaked Horned Lark (Eremophila alpestris strigata; hereafter lark) Endangered Species Act (ESA) listing (USFWS 2022), 2) highlight the challenges and inadequacies of the current approach to lark recovery, and 3) present an assessment of the pathway to lark recovery

Guide to Bees of the Willamette Valley

A comprehensive guide to bee genera of the Willamette Valley.

Field Guide to Select Lichens of Mount Pisgah

Thorough and accessible introductory guide to lichens covering 30 species; most applicable to oak habitats and oak/ash woodlands.

Oak Gall Wasps of Mount Pisgah

Nearly comprehensive guide to oak gall wasps (family: Cynipidae) in the ecoregion.

Guide to the Mima Mounds

Washington Geological Survey’s guide to the formation, history, and ecology of the Mima Mounds.

East Cascades Oak Partnership Strategic Plan 2020-2030

Our 2020-2030 Strategic Plan is the result of thousands of hours of study and conversation among state and federal public agencies, tribes, nonprofits, watershed councils, conservation districts, small businesses, private landowners, and interested citizens. When we started the planning process, our goals were to align ourselves around a shared vision for oak conservation, increase partner

Preference, performance, and chemical defense in an endangered butterfly using novel and ancestral host plants

Adoption of novel host plants by herbivorous insects can require new adaptations and may entail loss of adaptation to ancestral hosts. We examined relationships between an endangered subspecies of the butterfly Euphydryas editha (Taylor’s checkerspot) and three host plant species. Two of the hosts (Castilleja hispida, Castilleja levisecta) were used ancestrally while the other, Plantago lanceolata, is exotic

Minimizing conflict between airfield operations and lark conservation: a grass conversion demonstration project at Joint Base Lewis-McChord military base

In 2017, CNLM, with funding from USFWS, initiated a grass conversion demonstration project on Joint Base Lewis-McChord airfields. The goal was to replace the tall, exotic pasture grasses with native bunchgrasses at Gray Army and McChord Airfield on two 5-acre experimental plots. The project evaluated the feasibility of converting vegetation and investigate whether grass conversion

Draft Recovery Plan for Four Subspecies of Mazama Pocket Gopher

Four subspecies of Mazama pocket gopher (Roy Prairie pocket gopher [RPPG], Thomomys mazama glacialis; Olympia pocket gopher [OPG], T. m. pugetensis; Tenino pocket gopher [TPG], T. m. tumuli; and Yelm pocket gopher [YPG], T. m. yelmensis) found in Thurston and Pierce Counties, Washington, were listed in 2014 as threatened throughout their ranges under the Endangered

Coyote Creek South Breeding Birds and Streaked Horned Larks, 2020

The 309-acre Coyote Creek South property, owned by the Oregon Department of Fish and Wildlife (ODFW), is undergoing habitat restoration in cooperation with the Long Tom Watershed Council (LTWC). The habitat restoration includes conversion of former grass seed fields to wet prairie and vernal pool habitat. Phase 1 is 112 acres of wet prairie and