Index Catalog // ScholarsArchive@OSU

Canopy gaps affect the shape of Douglas-fir crowns in the western Cascades, Oregon

Creator:: Seidel, Dominik, Ruzicka, Kenneth J., and Puettmann, Klaus
Abstract:: Silvicultural regimes that aim at an increased stand structural diversity typically promote small-scale heterogeneity in horizontal and vertical structures, e.g. through the creation of gaps. We used terrestrial laser scanning (TLS) to investigate impacts of altered growing conditions on trees adjacent to artificial gaps as compared to responses of trees...
Resource Type:: Article
Full Text:: author. E-mail address: dominik.seidel@oregonstate.edu (D. Seidel). Dominik Seidel a,⇑, Kenneth J

General management principles and a checklist of strategies to guide forest biodiversity conservation

Creator:: Lindenmayer, D.B., Franklin, J.F., and Fischer, J.
Abstract:: Many indicators and criteria have been proposed to assess the sustainable management of forests but their scientific validity remains uncertain. Because the effects of forest disturbances (such as logging) are often specific to particular species, sites, landscapes, regions and forest types, management ‘‘shortcuts’’ such as indicator species, focal species and...
Resource Type:: Article
Full Text:: and Franklin, 2002). 438 B I O L O G I C A L C O N S E R V A T I O N 1 3 1 ( 2 0 0 6 ) 4 3 3 –4 4 5

Diversity and distribution of Frankia strains symbiotic with Ceanothus in California

Creator:: Oakley, Brian, North, Malcolm, Franklin, Jerry F., Hedlund, Brian P., and Staley, James T.
Abstract:: Frankia strains symbiotic with Ceanothus present an interesting opportunity to study the patterns and causes of Frankia diversity and distribution within a particular host infectivity group. We intensively sampled Frankia from nodules on Ceanothus plants along an elevational gradient in the southern Sierra Nevada of California, and we also collected...
Resource Type:: Article
Full Text:: Symbiotic with Ceanothus in California Brian Oakley,1* Malcolm North,2 Jerry F. Franklin,1 Brian P. Hedlund

Management of Riparian Buffers: Upslope Thinning with Downslope Impacts

Creator:: Ruzicka, Kenneth J., Jr., Puettmann, Klaus J., and Olson, Deanna H.
Abstract:: We examined the potential of using upslope density management to influence growth and drought tolerance of trees in untreated downslope riparian forests. Increment cores from Douglas-fir trees in three mature stands in western Oregon, USA, were collected and measured. Trees responded to an apparent edge effect up to 15 m...
Resource Type:: Article
Full Text:: Management of Riparian Buffers: Upslope Thinning with Downslope Impacts Kenneth J. Ruzicka Jr., Klaus J

Single photon timing system for picosecond fluorescence lifetime measurements

Creator:: Turko, Bojan T., Nairn, John A., and Sauer, Kenneth
Abstract:: A single‐photon timing system is described which is capable of extracting fluorescence lifetimes as short as 25 ps. The system is an improved version of an earlier apparatus. The new system uses a synchronously pumped, mode‐locked dye laser with 10‐ps pulses operating at 82‐MHz repetition rate. A fast photodetector and...
Resource Type:: Article
Full Text:: . Instrum. 38, 1105 (\967). 1 L. J. Schkolnick. Rev. Sci. Instrum. 39, 122 (1968). 8 D. T. Thompson and

Estimating Habitat-Specific Abundances of PIT-Tagged Juvenile Salmonids Using Mobile Antennas: A Comparison with Standard Electrofishing Techniques in a Small Stream

Creator:: Sloat, Matthew R., Baker, Peter F., and Ligon, Franklin K.
Abstract:: The use of passive integrated transponder (PIT) tags in ecological studies is increasingly common, but evaluations of their performance and range of application in the field are still emerging. Here, we compare habitat unit–scale abundance estimates of PIT-tagged juvenile coho salmon Oncorhynchus kisutch and steelhead O. mykiss derived from multiple-pass...
Resource Type:: Article
Full Text:: Stillwater Sciences, 2855 Telegraph Avenue, Suite 400, Berkeley, California 94705, USA Franklin K. Ligon

Facilitative and competive effects of a N-fixing shrub on white fir saplings

Creator:: Oakley, Brian B., North, Malcolm P., and Franklin, Jerry F.
Abstract:: In Sierra Nevada forests, shrubs are considered strong soil moisture competitors with regenerating trees, reducing seedling establishment, and slowing growth. Recent studies, however, suggest that in some circumstances shrubs can facilitate tree establishment and growth by modifying harsh microclimate conditions; increasing acquisition of water, carbon, and/or nutrients via shared mycorrhizal...
Resource Type:: Article
Full Text:: . Franklin b a College of Forest Resources, Box 352100, University of Washington, Seattle, WA 98195, United

Facilitative and competitive effecs of a N-fixing shrub on white fir saplings

Creator:: Oakley, Brian B., North, Malcolm P., and Franklin, Jerry F.
Abstract:: In Sierra Nevada forests, shrubs are considered strong soil moisture competitors with regenerating trees, reducing seedling establishment, and slowing growth. Recent studies, however, suggest that in some circumstances shrubs can facilitate tree establishment and growth by modifying harsh microclimate conditions; increasing acquisition of water, carbon, and/or nutrients via shared mycorrhizal...
Resource Type:: Article
Full Text:: . Franklin b a College of Forest Resources, Box 352100, University of Washington, Seattle, WA 98195, United

Beyond smoke and mirrors: a synthesis of fire policy and science

Creator:: Dellasala, Dominick A., Williams, Jack E., Deacon Williams, Cindy, and Franklin, Jerry F.
Abstract:: Fire performs many beneficial ecosystem functions in dry forests and rangelands across much of North America. In the last century, however, the role of fire has been dramatically altered by numerous anthropogenic factors acting as root causes of the current fire crisis, including widespread logging, road building, fire suppression, habitat...
Resource Type:: Article
Full Text:: . FRANKLIN§ ∗World Wildlife Fund, 116 Lithia Way, Suite 7, Ashland, OR 97520, U.S.A., dellasal@wwfks.org

The effects of fire on soil nitrogen associated with patches of the actinorhizal shrub Ceanothus cordulatus

Creator:: Oakley, Brian B., North, Malcolm P., and Franklin, Jerry F.
Abstract:: Nitrogen is a limiting resource in many temperate forests and nitrogen-fixing plants are usually limited to the early stages of post-disturbance succession. In fire-dependent Sierra Nevada forests, however, Ceanothus cordulatus is relatively abundant even in old-growth forest conditions which are at least partly maintained by fire.We conducted a field experiment...
Resource Type:: Article
Full Text:: Schowalter T In press Vegetation and ecological charac- teristics of mixed-conifer and red-fir forests at the

ScholarsArchive@OSU

Canopy gaps affect the shape of Douglas-fir crowns in the western Cascades, Oregon

General management principles and a checklist of strategies to guide forest biodiversity conservation

Diversity and distribution of Frankia strains symbiotic with Ceanothus in California

Management of Riparian Buffers: Upslope Thinning with Downslope Impacts

Single photon timing system for picosecond fluorescence lifetime measurements

Estimating Habitat-Specific Abundances of PIT-Tagged Juvenile Salmonids Using Mobile Antennas: A Comparison with Standard Electrofishing Techniques in a Small Stream

Facilitative and competive effects of a N-fixing shrub on white fir saplings

Facilitative and competitive effecs of a N-fixing shrub on white fir saplings

Beyond smoke and mirrors: a synthesis of fire policy and science

The effects of fire on soil nitrogen associated with patches of the actinorhizal shrub Ceanothus cordulatus

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