Index Catalog // ScholarsArchive@OSU

Patch colonization dynamics in Carolina chickadees (Poecile carolinensis) in a fragmented landscape: a manipulative study

Creator:: Groom, Jeremiah D. and Grubb, Thomas C.
Abstract:: Habitat and landscape features that influence the rate of interpatch movement and colonization may determine the likelihood that a species will persist in fragmented landscapes. We simulated patch extinction by removing Carolina Chickadees (Poecile carolinensis) from woodland fragments in an Ohio agricultural landscape in January 2002. We then monitored the...
Resource Type:: Article
Full Text:: FRACMENTED LANDSCAPE: A MANIPULATIVE STUDY JEREMIAH D . GROOM' AND THOMAS C . GRUBB, JR. Department of

Anomalous satellite-measured chlorophyll concentrations in the northern California Current in 2001-2002

Creator:: Thomas, Andrew C., Strub, P. Ted, and Brickley, Peter
Abstract:: Five years (1997–2002) of northern California Current SeaWiFS ocean color data put cold, low salinity hydrographic anomalies observed in summer 2002 into a spatial/temporal context and present their biological ramifications. Monthly mean chlorophyll concentrations were >1.0 mg m–3 larger than the previous 3 year average over the entire shelf from...
Resource Type:: Article
Full Text:: concentrations in the northern California Current in 2001–2002 Andrew C. Thomas School of Marine Sciences, Univ

Chlorophyll variability in eastern boundary currents

Creator:: Thomas, A. C., Carr, M. E., and Strub, P. Ted
Abstract:: The first three years of SeaWiFS data (1997-2000) provide the most complete quantification to date of chlorophyll seasonal variability along the full latitudinal extent of the four major eastern boundary currents (EBCs). Comparisons to previously published chlorophyll seasonal climatologies deduced from the relatively sparse coverage provided by the Coastal Zone...
Resource Type:: Article
Full Text:: ) the California (23ø-50øN), (b) the Peru-Chile (5ø-55øS), (c) the Canary (5ø-43øN) and (d) the

Underplanted conifer seedling survival and growth in thinned Douglas-fir stands

Creator:: Brandeis, Thomas James, Newton, Michael, and Cole, Elizabeth C.
Abstract:: In a multilevel study to determine limits to underplanted conifer seedling growth, Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), grand fir (Abies grandis (Dougl. ex D. Don) Lindl.), western redcedar (Thuja plicata Donn ex D. Don), and western hemlock (Tsuga heterophylla (Raf.) Sarg.) seedlings were planted beneath second-growth Douglas-fir stands that had...
Resource Type:: Article
Full Text:: thinned Douglas-fir stands1 Thomas J. Brandeis, Michael Newton, and Elizabeth C. Cole Abstract: In a

Seasonal food web models for the Oregon inner-shelf ecosystem : investigating the role of large jellyfish

Creator:: Ruzicka, James J., Brodeur, Richard D., and Wainwright, Thomas C.
Abstract:: Previously published in California Cooperative Oceanic Fisheries Investigations Progress Report, 2007, Vol.48; access courtesy of publisher and authors.
Resource Type:: Research Paper
Full Text:: ROLE OF LARGE JELLYFISH JAMES J. RUZICKA RICHARD D. BRODEUR AND THOMAS C. WAINWRIGHT Cooperative

Evolution of 1996-1999 La Niña and El Niño conditions off the western coast of South America: A remote sensing perspective

Creator:: Carr, Mary-Elena, Strub, P. Ted, Thomas, Andrew C., and Blanco, Jose Luis
Abstract:: We present the evolution of oceanographic conditions off the western coast of South America between 1996 and 1999, including the cold periods of 1996 and 1998–1999 and the 1997–1998 El Niño, using satellite observations of sea level, winds, sea surface temperature (SST), and chlorophyll concentration. Following a period of cold...
Resource Type:: Article
Full Text:: Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, Oregon, USA Andrew C. Thomas School

Gender identification and growth of juvenile lesser prairie-chickens

Creator:: Pitman, James C., Hagen, Christian A., Robel, Robert J., Loughlin, Thomas M., and Applegate, Roger D.
Abstract:: The ability to ascertain gender and age of juvenile grouse is essential for determining gender-specific population age structure and studying timing of reproductive events, respectively. We examined outer rectrix feathers from juvenile Lesser Prairie-Chickens (Tympanuchus pallidicinctus) captured at 30–40 and 50–60 days post-hatching. Blood samples were collected from most chicks...
Resource Type:: Article
Full Text:: GROWTH OF JUVENILE LESSER PRAIRIE-CHICKENS JAMES C. PITMAN1,4, CHRISTIAN A. HAGEN1, ROBERT J. ROBEL1

Niche partitioning by lesser prairie-chickens Tympanuchus pallidicinctus and ring-necked pheasants Phasianus colchicus in southwestern Kansas.

Creator:: Hagen, Chrisitan A., Pitman, James C., Robel, Robert J., Loughin, Thomas M., and Applegate, Roger D.
Abstract:: We conducted this 2-year study to determine if lesser prairie-chickens Tympanuchus pallidicinctus and ring-necked pheasants Phasianus colchicus used the same habitats where their ranges overlapped in southwestern Kansas. Telemetry locations of 50 transmitter-equipped lesser prairie-chickens and 28 pheasants were used to monitor habitat use by the two species. Additionally, vegetation...
Resource Type:: Article
Full Text:: -chickenTympanuchuspallidicinctus and ring-necked pheasant Phasianus colchicus in southwestern Kansas Christian A. Hagen, James C

Oceanic molybdenum isotope fractionation: Diagenesis and hydrothermal ridge-flank alteration

Creator:: McManus, James, Nägler, Thomas F., Siebert, Christopher, Wheat, C. Geoffrey, and Hammond, Douglas E.
Abstract:: Isotopic analyses of dissolved molybdenum are presented for sediment pore waters from a reducing sedimentary basin and for fluids from a low-temperature ridge flank hydrothermal system. δ⁹⁸/⁹⁵Mo in these fluids range from 0.8 to 3.5%₀ (relative to a laboratory standard), demonstrating that marine sedimentary reactions significantly fractionate Mo isotopes. Within...
Resource Type:: Article
Full Text:: , Switzerland (naegler@geo.unibe.ch; siebert@geo.unibe.ch) C. Geoffrey Wheat Global Undersea Research Unit, P.O

Satellite-measured chlorophyll and temperature variability off northern Chile during the 1996-1998 La Nina and El Niño

Creator:: Thomas, A. C., Blanco, J. L., Carr, M. E., Strub, P. Ted, and Osses, J.
Abstract:: Time series of satellite measurements are used to describe patterns of surface temperature and chlorophyll associated with the 1996 cold La Nina phase and the 1997-1998 warm El Nino phase of the El Nino - Southern Oscillation cycle in the upwelling region off northern Chile. Surface temperature data are available...
Resource Type:: Article

ScholarsArchive@OSU

Patch colonization dynamics in Carolina chickadees (Poecile carolinensis) in a fragmented landscape: a manipulative study

Anomalous satellite-measured chlorophyll concentrations in the northern California Current in 2001-2002

Chlorophyll variability in eastern boundary currents

Underplanted conifer seedling survival and growth in thinned Douglas-fir stands

Seasonal food web models for the Oregon inner-shelf ecosystem : investigating the role of large jellyfish

Evolution of 1996-1999 La Niña and El Niño conditions off the western coast of South America: A remote sensing perspective

Gender identification and growth of juvenile lesser prairie-chickens

Niche partitioning by lesser prairie-chickens Tympanuchus pallidicinctus and ring-necked pheasants Phasianus colchicus in southwestern Kansas.

Oceanic molybdenum isotope fractionation: Diagenesis and hydrothermal ridge-flank alteration

Satellite-measured chlorophyll and temperature variability off northern Chile during the 1996-1998 La Nina and El Niño

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