Index Catalog // ScholarsArchive@OSU

Carbon concentration of standing and downed woody detritus: Effects of tree taxa, decay class, position, and tissue type

Creator:: Harmon, Mark E., Fasth, Becky, Woodall, Christopher W., and Sexton, Jay
Abstract:: The degree to which carbon concentration (CC) of woody detritus varies by tree taxa, stage of decay, tissue type (i.e., bark versus wood), and vertical orientation was examined in samples of 60 tree species from the Northern Hemisphere. The mean CC of 257 study samples was 49.3% with a range...
Resource Type:: Article
Full Text:: Fasth a, Christopher W. Woodall b, Jay Sexton a aOregon State University, Department of Forest

Surface Flux Observations on the Southeastern Tropical Pacific Ocean and Attribution of SST Errors in Coupled Ocean–Atmosphere Models

Creator:: de Szoeke, Simon P., Fairall, Christopher W., Wolfe, Daniel E., Bariteau, Ludovic, and Zuidema, Paquita
Abstract:: A new dataset synthesizes in situ and remote sensing observations from research ships deployed to the southeastern tropical Pacific stratocumulus region for 7 years in boreal fall. Surface meteorology, turbulent and radiative fluxes, aerosols, cloud properties, and rawinsonde profiles were measured on nine ship transects along 20°S from 75° to...
Resource Type:: Article
Full Text:: CHRISTOPHER W. FAIRALL AND DANIEL E. WOLFE National Oceanic and Atmospheric Administration/Earth System

The MJO and Air-Sea Interaction in TOGA COARE and DYNAMO

Creator:: de Szoeke, Simon P., Edson, James B., Marion, June R., Fairall, Christopher W., and Bariteau, Ludovic
Abstract:: DYNAMO and TOGA-COARE observations and reanalysis-based surface flux products are used to test theories of atmosphere-ocean interaction that explain the Madden-Julian Oscillation (MJO). Negative intraseasonal outgoing longwave radiation, indicating deep convective clouds, is in phase with increased surface wind stress, decreased solar heating, and increased surface turbulent heat flux—mostly evaporation—from...
Resource Type:: Article

Density dependence and population regulation in marine fish: a large-scale, long-term field manipulation

Creator:: Hixon, Mark A., Anderson, Todd W., Buch, Kevin L., Johnson, Darren W., McLeod, J. Brock, and Stallings, Christopher D.
Abstract:: dependence and regulation of relatively large local populations? If so, what are the causative mechanisms and their implications? We conducted an eight-year multigeneration study of population dynamics of bicolor damselfish (Stegastes partitus) inhabiting four large coral reefs in the Bahamas. After a four-year baseline period, it was clear that two...
Resource Type:: Article
Full Text:: . BUCH,2,5 DARREN W. JOHNSON,1,6 J. BROCK MCLEOD,1,7 AND CHRISTOPHER D. STALLINGS 1,8 1Department of

A Call to Improve Methods for Estimating Tree Biomass for Regional and National Assessments

Creator:: Weiskittel, Aaron R., MacFarlane, David W., Radtke, Philip J., Affleck, David L.R., Temesgen, Hailemariam, Woodall, Christopher W., Westfall, James A., and Coulston, John W.
Abstract:: Tree biomass is typically estimated using statistical models. This review highlights five limitations of most tree biomass models, which include the following: (1) biomass data are costly to collect and alternative sampling methods are used; (2) belowground data and models are generally lacking; (3) models are often developed from small...
Resource Type:: Article
Full Text:: . Affleck, Hailemariam Temesgen, Christopher W. Woodall, James A. Westfall, and John W. Coulston Tree

Objective Determination of Feature Resolution in Two Sea Surface Temperature Analyses

Creator:: Reynolds, Richard W., Chelton, Dudley B., Roberts-Jones, Jonah, Martin, Matthew J., Menemenlis, Dimitris, and Merchant, Christopher John
Abstract:: Considerable effort is presently being devoted to producing high-resolution sea surface temperature (SST) analyses with a goal of spatial grid resolutions as low as 1 km. Because grid resolution is not the same as feature resolution, a method is needed to objectively determine the resolution capability and accuracy of SST...
Resource Type:: Article
Full Text:: Resolution in Two Sea Surface Temperature Analyses RICHARD W. REYNOLDS Cooperative Institute for Climate

Leaf processing behaviour in Atta leafcutter ants: 90% of leaf cutting takes place inside the nest, and ants select pieces that require less cutting

Creator:: Garrett, Ryan W., Carlson, Katherine A., Goggans, Matthew Scott, Nesson, Michael H., Shepard, Christopher A., and Schofield, Robert M. S.
Abstract:: Leafcutter ants cut trimmings from plants, carry them to their underground nests and cut them into smaller pieces before inoculating them with a fungus that serves as a primary food source for the colony. Cutting is energetically costly, so the amount of cutting is important in understanding foraging energetics. Estimates...
Resource Type:: Article
Full Text:: cutting RyanW. Garrett1, Katherine A. Carlson1, Matthew Scott Goggans1, Michael H. Nesson2, Christopher A

Total Lipids, Lipid Classes, and Fatty Acids of Newly Settled Red King Crab (Paralithodes camtschaticus): Comparison of hatchery-cultured and wild crabs

Creator:: Copeman, Louise A., Stoner, Allan W., Ottmar, Michele L., Daly, Benjamin, Parrish, Christopher C., and Eckert, Ginny L.
Abstract:: Little is known about the nutrition or lipid metabolism of cold-water crabs, particularly in the North Pacific. We undertook a 2-part study to understand more completely the energetics and nutritional requirements of juvenile red king crab (RKC; Paralithodes canusehaticus). First, we investigated changes in proximate composition, total lipids (TLs), lipid...
Resource Type:: Article
Full Text:: ): COMPARISON OF HATCHERY-CULTURED AND WILD CRABS LOUISE A. COPEMAN,1* ALLAN W. STONER,2 MICHELE L. OTTMAR,2

Phylogeny of fish-infecting Calyptospora species (Apicomplexa: Eimeriorina)

Creator:: Whipps, Christopher M., Fournie, John W., Morrison, David A., Azevedo, Carlos, Matos, Edilson, Thebo, Per, and Kent, Michael L.
Abstract:: There are numerous species of apicomplexans that infect poikilothermic vertebrates, such as fishes, and possess unique morphological features that provide insight into the evolution of this important phylum of parasites. Here, the relationship of the fish-infecting Calyptospora species to other coccidians was investigated based on DNA sequence analysis. Genetic data...
Resource Type:: Article
Full Text:: species (Apicomplexa: Eimeriorina) Christopher M. Whipps & John W. Fournie & David A. Morrison & Carlos

Developing Models for the Forage Ratios of Culiseta melanura and Culex erraticus using Species Characteristics for Avian Hosts

Creator:: Estep, Laura K., McClure, Christopher J. W., Burkett-Cadena, Nathan D., Hassan, Hassan K., Unnasch, Thomas R., and Hill, Geoffrey E.
Abstract:: Studies of mosquito preferences for avian hosts have found that some bird species are at greater risk than others of being fed upon by mosquitoes. The ecological factors that determine this interspecific variation in avian host use by mosquitoes have been little studied, despite the possibility that such variation may...
Resource Type:: Article
Full Text:: Hosts LAURA K. ESTEP,1 CHRISTOPHER J. W. MCCLURE,2 NATHAN D. BURKETT-CADENA,3 HASSAN K. HASSAN,3

ScholarsArchive@OSU

Carbon concentration of standing and downed woody detritus: Effects of tree taxa, decay class, position, and tissue type

Surface Flux Observations on the Southeastern Tropical Pacific Ocean and Attribution of SST Errors in Coupled Ocean–Atmosphere Models

The MJO and Air-Sea Interaction in TOGA COARE and DYNAMO

Density dependence and population regulation in marine fish: a large-scale, long-term field manipulation

A Call to Improve Methods for Estimating Tree Biomass for Regional and National Assessments

Objective Determination of Feature Resolution in Two Sea Surface Temperature Analyses

Leaf processing behaviour in Atta leafcutter ants: 90% of leaf cutting takes place inside the nest, and ants select pieces that require less cutting

Total Lipids, Lipid Classes, and Fatty Acids of Newly Settled Red King Crab (Paralithodes camtschaticus): Comparison of hatchery-cultured and wild crabs

Phylogeny of fish-infecting Calyptospora species (Apicomplexa: Eimeriorina)

Developing Models for the Forage Ratios of Culiseta melanura and Culex erraticus using Species Characteristics for Avian Hosts

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