Changes in landscape values and expectations: What do we want and how do we measure it?
No abstract available.
Book chapter↗
Geology topics
W. L. Halvorson
Publications and source records attributed to W. L. Halvorson.
Sensitive Plants of San Nicolas Island, California (phase 1)
No abstract available at this time
Technical Report↗
Global change research program, Sonoran Desert, 1994 Annual Report
No abstract available at this time
Special Technical Report↗
Social science research plan: Lake Mead National Recreation Area
No abstract available at this time
Report↗
Review of the Air Quality Biological Effects Research Program, Saguaro National Monument, Arizona
No abstract available at this time
Technical Report↗
Restoration of denuded areas and iceplant areas on Santa Barbara Island, Channel Islands National Park
No abstract available at this time
Technical Report↗
Valley oak seedling growth associated with selected grass species
No abstract available at this time
General Technical Report↗
A roof rat bait station that excludes deer mice
Explore the source record for details and available documents.
Wildlife Society Bulletin↗
[Book review] North American terrestrial vegetation, by Michael G. Barbour and William Dwight Billings
Review of: North American Terrestrial Vegetation. Michael G. Barbour and William Dwight Billings. Cambridge University Press; 1st ed edition (March 25, 1988). 448 pages. ISBN: 978-0521261982.
Madroño↗
Valley oak inventory and monitoring at Santa Monica Mountains
No abstract available.
Natural Resource Report↗
Vegetation and floristics of Pinnacles National Monument
No abstract available at this time
Technical Report↗
Soils and vegetation of Santa Barbara Island, Channel Islands National Park, CA
The multifaceted development of an erosion surface on Santa Barbara Island, Channel Islands National Park, California, has led to this study of the relationship between soils and vegetation. A dry Mediterranean climate and past attempts at farming and introductions of alien species have led to vegetative degradation accompanied by both gully and surface erosion. Soil and vegetation analyses show this erosion to be in a location of transition. The soils are Typic Chromoxererts (Vertisol Order) with high clay, salinity, and sodium contents. The vegetation is ecotonal in nature, grading from a principally alien annual grassland with Avena fatua and Atriplex semibaccata to a shrub community dominated by the native Suaeda californica . Management toward revegetation and stabilization of this island ecosystem will be difficult with high clay, saline-sodic soils and disturbed vegetation.
California↗
Science and management in U. S. National Parks
No abstract available.
Bulletin of the Ecological Society of America↗
Valley oak long-term monitoring handbook. Report to the Superintendent, Santa Monica Mountains National Recreation Area
No abstract available at this time
Report↗