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We collected information on the life history requirements of four rare south Puget Sound butterflies in 1998-1999; the mardon skipper (Polites mardon), Puget blue (Plebejus icarioides blackmorei), Whulge checkerspot (Euphydryas editha […]
Streaked Horned Lark Habitat Management and Monitoring at the Willamette Valley National Wildlife Refuge Complex -2018 Annual Report
The Willamette Valley NWR Complex provided several hundred acres of potentially suitable habitat for breeding streaked horned larks (SHLA) during 2018. Habitat was provided at all 3 of the Complex refuges: […]
Research on habitat manipulation and management of Fender’s Blue Butterfly Areas: Final Report, prepared for Oregon Field Office, The Nature Conservancy, Oregon Natural Heritage Program, Portland, Oregon
We report first-year results from two field experiments evaluating the effectiveness of various techniques for the control of pest plants of Fender’s blue butterfly habitat. In the woody-plant study, we monitored […]
Effects of fire, mowing, and mowing with herbicide on native prairie of Baskett Butte, Baskett Slough National Wildlife Refuge
We report results from a field experiment evaluating the effectiveness of mowing, mowing and herbicides, and burning on woody plants, key native and non-native grasses and forbs, and the Fender’s blue […]
West Eugene Native Wetland Restoration Research Project: Seed Dormancy, Germination, and Establishment
Seed size, abundance, viability, dormancy, and germination requirements strongly influence plant establishment and therefore are important considerations in restoration of native vegetation. These characteristics provide criteria for selection of suitable species, […]
Regeneration Biology of Erigeron decumbens var. decumbens, An Endangered Plant of the Willamette Valley
Understanding the regeneration biology of Erigeron decumbens var. decumbens, is essential for developing appropriate management and restoration efforts. Seed production of Erigeron decumbens was high (160-220 seeds/head). However, very few of […]
Prescribed cattle grazing as a tool for native prairie management: Lessons from the Tualatin River basin, Oregon
Land managers of prairie and savanna sites in the Willamette-Puget Trough-Georgia Basin (WPG) ecoregion are tasked with reestablishing native species, managing the threat of invasive species, and encouraging or introducing regular […]
Controls on the distribution and resilience of Quercus garryana: ecophysiological evidence of oak’s water‐limitation tolerance
The composition of forests in Western North America is changing. The decline in the shade‐intolerant Oregon white oak (Quercus garryana var. garryana) is attributed to increased competition with the tall‐growing Douglas […]
Best Management Practices for the Puget Sound lowlands This how-to practitioner guide is a set of best management practices(BMPs) for native pollinator habitat restoration in the Puget Sound region. It is […]
The Center for Natural Lands Management’s Conservation Nursery Program is a cooperative conservation infrastructure project, which provides native grassland seed services primarily in Western Washington. Our core mission is the regional […]