Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 6 of 6

Full-Text Articles in Physical Sciences and Mathematics

Historical Vegetation Of Central Southwest Oregon, Based On Glo Survey Notes : Final Report To Usdi Bureau Of Land Management, Medford District, O. Eugene Hickman, John A. Christy Oct 2011

Historical Vegetation Of Central Southwest Oregon, Based On Glo Survey Notes : Final Report To Usdi Bureau Of Land Management, Medford District, O. Eugene Hickman, John A. Christy

Institute for Natural Resources Publications

Historical vegetation at the time of European settlement is of great interest to both the public and land managers, but is poorly documented. One source of data are the earliest land survey records of the General Land Office (GLO). Rectangular township surveys in Southwest Oregon were initiated in the mid 1850’s as settlers began to claim homesteads in the Bear Creek Valley surrounding what is now Medford. We examined GLO land survey field notes and plats (maps) accompanying the surveys, transcribed GLO landscape data into an Access database, and classified the data set into very general vegetation types for mapping. …


Integrating Ecosystem Services, River Restoration And Community: A Case Study At Fisher's Bend, Michael Carlson Oct 2011

Integrating Ecosystem Services, River Restoration And Community: A Case Study At Fisher's Bend, Michael Carlson

Environmental Science and Management Professional Master's Project Reports

Natural areas and ecosystem services at the edge of urban areas are threatened by increasing development. This paper examines how community based restoration partnerships can work to identify, protect and restore ecosystem services provided by salmon and our local rivers. Floodplains provide a wide range of ecosystem services to urban and rural communities and we should work collaboratively to protect and restore them. Floodplains are especially valuable and important for salmon recovery. By using a case study, we explore the process and feasibility of restoring off-channel salmon habitat at Fisher's Bend in the lower Clackamas river. A feasibility study was …


Mapping Conservation Opportunity Areas For The Intertwine's Regional Conservation Strategy, Theresa Burcsu, James S. Kagan Jun 2011

Mapping Conservation Opportunity Areas For The Intertwine's Regional Conservation Strategy, Theresa Burcsu, James S. Kagan

Institute for Natural Resources Publications

As part of efforts to develop the Regional Conservation Strategy (RCS) for the greater Portland-Vancouver region, Oregon State University’s Institute for Natural Resources (INR) was asked to use spatial modeling to identify conservation opportunity areas (COAs). To complete the project, INR analysts proposed a strategy that would map high value areas using a landscape approach that is focused on relatively high spatial resolution data sets available for the whole metropolitan region. The approach creates 2 main metrics: one focused on terrestrial organisms and the other focused on aquatic and riparian organisms. These are combined to create a map of highly …


Interview With Robert Costanza, Institute For Sustainable Solutions, 2011 (Audio), Robert Costanza Feb 2011

Interview With Robert Costanza, Institute For Sustainable Solutions, 2011 (Audio), Robert Costanza

All Sustainability History Project Oral Histories

Interview of Dr. Robert Costanza by Noah Sharpsteen at Portland State University on February 22nd, 2011.

The interview index is available for download.


Can Salmonids (Oncorhynchus Spp.) Be Identified To Species Using Vertebral Morphometrics?, Harriet R. Huber, Jeffery C. Jorgensen, Virginia L. Butler, Greg Baker, Rebecca Stevens Jan 2011

Can Salmonids (Oncorhynchus Spp.) Be Identified To Species Using Vertebral Morphometrics?, Harriet R. Huber, Jeffery C. Jorgensen, Virginia L. Butler, Greg Baker, Rebecca Stevens

Anthropology Faculty Publications and Presentations

Remains of anadromous Pacific salmon and trout (genus Oncorhynchus) are common in archaeological sites from California to Alaska; however, morphological similarity generally precludes species identification, limiting the range of questions that salmonid remains can address in relation to past human use and ongoing efforts in conservation biology. We developed a relatively simple, rapid, and non-destructive way to classify salmon and trout vertebrae from archaeological contexts to species using length, height and the ratio of length to height. Modern reference material was obtained from all seven anadromous Oncorhynchus species native to the west coast of North America. A minimum of ten …


The Sociology Of Landowner Interest In Restoring Fire-Adapted, Biodiverse Habitats In The Wildland-Urban Interface Of Oregon's Willamette Valley Ecoregion, Max Nielsen-Pincus Jan 2011

The Sociology Of Landowner Interest In Restoring Fire-Adapted, Biodiverse Habitats In The Wildland-Urban Interface Of Oregon's Willamette Valley Ecoregion, Max Nielsen-Pincus

Environmental Science and Management Faculty Publications and Presentations

In many parts of the world, the combined effects of wildfire, climate change, and population growth in the wildland-urban interface pose increasing risks to both people and biodiversity. These risks are exemplified in western Oregon’s Willamette Valley Ecoregion, where population is projected to double by 2050 and climate change is expected to increase wildfire risk. Restoring elements of the region’s historic fire-adapted prairie, savanna, and woodland habitats may help to reduce future wildfire risk and help conserve the region’s threatened biodiversity. We report on a mail survey (n = 939) examining the socio-demographic factors influencing private landowners’ likelihood of restoring …