Index Catalog // ScholarsArchive@OSU

Historical fire regime in the Little River watershed, southwestern Oregon

Creator:: Van Norman, Kelli J.
Abstract:: Disturbances are a prevalent and important part of ecosystems. Many landscape patterns that we find today were created, maintained, and changed by natural disturbance regimes. This is especially true for fire, which has historically been a common, natural disturbance in the western U.S forests and grasslands and many other parts...
Resource Type:: Masters Thesis

Quantifying Aboveground Biomass for Common Shrubs in Northeastern California

Creator:: Huff, Steven
Abstract:: Quantifying biomass is important for sustainable forest management. The purpose of this study is to obtain allometric relationships for seven species of shrubs common in northeastern California so that estimates of carbon and fuel loading may be better realized. Although some shrub biomass equations exist, such equations are limited in...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Steven Huff for the degree of Master of Science in Sustainable Forest

Nitrogen dynamics across silvicultural canopy gaps in young forests of western Oregon

Creator:: Thiel, Aaron L.
Abstract:: Silvicultural canopy gaps are emerging as an alternative management tool to accelerate development of complex forest structure in young, even-aged forests of the Pacific Northwest. I investigated patterns of nitrogen (N) availability along transects through 0.1 and 0.4 ha silvicultural gaps in three 50-70 year old Douglas-fir forests of western...
Resource Type:: Masters Thesis
Full Text:: Steven S. Perakis Silvicultural canopy gaps are emerging as an alternative management tool to

Nuclear and mitochondrial DNA polymorphism and phylogeny in the California closed-cone pines

Creator:: Wu, Junyuan
Abstract:: We studied genetic polymorphism and phylogeny using nuclear random amplified polymorphic DNA markers (RAPDs) and mitochondrial DNA (mtDNA) restriction fragment length polymorphisms (RFLPs) in the three California Closed-Cone Pines: Pinus attenuata Lemm., P. muricata D. Don, and P. radiata D. Don. A total of 343 to 384 trees derived from...
Resource Type:: Masters Thesis
Full Text:: Polymorphism and Phylogeny in the California Closed-Cone Pines Abstract approved- Steven H. Strauss We

Tree species-soils relationships in old-growth forests of the Oregon Coast Range

Creator:: Cross, Alison
Abstract:: Tree species directly and indirectly affect soil nutrient cycles. I sought to characterize soils and foliage associated with four common canopy tree species (Douglas-fir, western hemlock, western redcedar, and bigleaf maple) in mixed-species old-growth forests of the Oregon Coast Range and to determine whether and how soils differ among the...
Resource Type:: Masters Thesis
Full Text:: : __________________________________________________________________ Steven S. Perakis Tree species directly and indirectly affect soil nutrient cycles. I

Phylogeography, evolution, and conservation in forest-associated Pacific Northwest salamanders

Creator:: Wagner, R. Steven
Abstract:: Phylogeographic studies of six Pacific Northwest forest-associated salamanders provide insight into historical and contemporary processes on population genetic structure. Among Larch Mountain Salamanders (Plethodon larselli), cytochrome b mitochondrial (mtDNA) sequences (381 bp) and random amplified polymorphic DNA (RAPDs; 34 loci) supported separate Management Units for northern and southern populations (12...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF R. Steven Wagner for the

Seasonal dynamics and allometric considerations of feeding and food processing for macrozooplankton in the northeast Pacific Ocean

Creator:: Ellis, Steven G.
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Steven G. Ellis for the degree of

The influence of climate change and restoration on stream temperature

Creator:: Diabat, Mousa
Abstract:: Water temperature is an essential property of a stream. Temperature regulates physical and biochemical processes in aquatic habitats. Various factors related to climatic conditions, landscape characteristics, and channel structure directly influence stream temperature. Numerous studies indicate that increased average air temperature during the past century has led to stream warming...
Resource Type:: Dissertation
Full Text:: : _______________________________________________________________ Roy D. Haggerty Steven M. Wondzell Water temperature is an essential property

Spatial and temporal patterns of fire in the forests of the central Oregon Coast Range

Creator:: Impara, Peter C.
Abstract:: Fire history and fire regime were interpreted from tree ring analysis of 4320 stumps at 178 sites in a 25 by 55 km area in the central Oregon Coast Range. A total of 27 fire episodes were identified in a 516 year period, with sizes estimated at 18 to 544...
Resource Type:: Dissertation
Full Text:: thank my other committee members, Drs. Steven Garman, Jon Kimerling, and Kerry Ahearn, for their advice

Fire effects on vegetation diversity, structure, and successional dynamics in shrub-steppe and mixed conifer environments of the Hells Canyon, Idaho

Creator:: Havlina, Douglas William
Abstract:: The effects of fire severity on post-fire succession and shrub demography were quantified in shrub-steppe grasslands and subalpine forests in the Hells Canyon of the Payette National Forest, Idaho. Following the 1988 Eagle Bar Fire, species frequency, community diversity, fire adaptations, and stand ages were quantified at 12 plots in...
Resource Type:: Masters Thesis
Full Text:: life in general. Thank you to Drs. Paul Doescher, Ed Starkey, and Steven Davis for serving on my

ScholarsArchive@OSU

Historical fire regime in the Little River watershed, southwestern Oregon

Quantifying Aboveground Biomass for Common Shrubs in Northeastern California

Nitrogen dynamics across silvicultural canopy gaps in young forests of western Oregon

Nuclear and mitochondrial DNA polymorphism and phylogeny in the California closed-cone pines

Tree species-soils relationships in old-growth forests of the Oregon Coast Range

Phylogeography, evolution, and conservation in forest-associated Pacific Northwest salamanders

Seasonal dynamics and allometric considerations of feeding and food processing for macrozooplankton in the northeast Pacific Ocean

The influence of climate change and restoration on stream temperature

Spatial and temporal patterns of fire in the forests of the central Oregon Coast Range

Fire effects on vegetation diversity, structure, and successional dynamics in shrub-steppe and mixed conifer environments of the Hells Canyon, Idaho

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