Index Catalog // ScholarsArchive@OSU

Amino Acid Uptake in Arbuscular Mycorrhizal Plants

Creator:: Whiteside, Matthew D., Garcia, Maria O., and Treseder, Kathleen K.
Abstract:: We examined the extent to which arbuscular mycorrhizal (AM) fungi root improved the acquisition of simple organic nitrogen (ON) compounds by their host plants. In a greenhouse-based study, we used quantum dots (fluorescent nanoparticles) to assess uptake of each of the 20 proteinaceous amino acids by AM-colonized versus uncolonized plants....
Resource Type:: Article
Full Text:: Plants Matthew D. Whiteside1, Maria O. Garcia2, Kathleen K. Treseder3* 1 Biology Department and

Evaluation and improvement of the Community Land Model (CLM4) in Oregon forests

Creator:: Hudiburg, T. W., Law, B. E., and Thornton, P. E.
Abstract:: Ecosystem process models are important tools for determining the interactive effects of global change and disturbance on forest carbon dynamics. Here we evaluated and improved terrestrial carbon cycling simulated by the Community Land Model (CLM4), the land model portion of the Community Earth System Model (CESM1.0.4). Our analysis was conducted...
Resource Type:: Article
Full Text:: Evaluation and improvement of the Community Land Model (CLM4) in Oregon forests T. W. Hudiburg1, B. E. Law2

Predation on an Upper Trophic Marine Predator, the Steller Sea Lion: Evaluating High Juvenile Mortality in a Density Dependent Conceptual Framework

Creator:: Horning, Markus and Mellish, Jo-Ann E.
Abstract:: The endangered western stock of the Steller sea lion (Eumetopias jubatus) - the largest of the eared seals - has declined by 80% from population levels encountered four decades ago. Current overall trends from the Gulf of Alaska to the Aleutian Islands appear neutral with strong regional heterogeneities. A published...
Resource Type:: Article
Full Text:: Markus Horning1,2*, Jo-Ann E. Mellish3,4 1 Department of Fisheries and Wildlife, Marine Mammal Institute

Amplification and dampening of soil respiration by changes in temperature variability

Creator:: Sierra, C. A., Harmon, M. E., Thomann, E., Perakis, S. S., and Loescher, H. W.
Abstract:: Accelerated release of carbon from soils is one of the most important feedbacks related to anthropogenically induced climate change. Studies addressing the mechanisms for soil carbon release through organic matter decomposition have focused on the effect of changes in the average temperature, with little attention to changes in temperature variability....
Resource Type:: Article
Full Text:: Amplification and dampening of soil respiration by changes in temperature variability C. A. Sierra1,*, M. E

How Effective Are DNA Barcodes in the Identification of African Rainforest Trees?

Creator:: Parmentier, Ingrid, Duminil, Jérôme, Kuzmina, Maria, Philippe, Morgane, Thomas, Duncan W., Kenfack, David, Chuyong, George B., Cruaud, Corinne, and Hardy, Olivier J.
Abstract:: Background: DNA barcoding of rain forest trees could potentially help biologists identify species and discover new ones. However, DNA barcodes cannot always distinguish between closely related species, and the size and completeness of barcode databases are key parameters for their successful application. We test the ability of rbcL, matK and...
Resource Type:: Article
Full Text:: Identification of African Rainforest Trees? Ingrid Parmentier1, Jérôme Duminil1,2, Maria Kuzmina3, Morgane

Intra‐ and inter‐annual variation in gray whale body condition on a foraging ground

Creator:: Soledade Lemos, Leila, Burnett, Jonathan D., Chandler, Todd E., Sumich, James L., and Torres, Leigh G.
Abstract:: Baleen whales store energy gained on foraging grounds to support reproduction and other metabolic needs while fasting for long periods during migration. Whale body condition can be used to monitor foraging success, and thus better understand and anticipate individual‐ and population‐level trends in reproduction and survival. We assessed the body...
Resource Type:: Article
Full Text:: foraging ground LEILA SOLEDADE LEMOS ,1,� JONATHAN D. BURNETT ,2 TODD E. CHANDLER,1 JAMES L. SUMICH ,3

A new instrument to measure plot-scale runoff

Creator:: Stewart, R. D., Liu, Z., Rupp, D. E., Higgins, C. W., and Selker, J. S.
Abstract:: Accurate measurement of the amount and timing of surface runoff at multiple scales is needed to understand fundamental hydrological processes. At the plot scale (i.e., length scales on the order of 1–10 m) current methods for direct measurement of runoff either store the water in a collection vessel, which is...
Resource Type:: Article
Full Text:: runoff A new instrument to measure plot-scale runoff Stewart, R. D., Liu, Z., Rupp, D. E., Higgins, C

Evaluating Paratransgenesis as a Potential Control Strategy for African Trypanosomiasis

Creator:: Medlock, Jan, Atkins, Katherine E., Thomas, David N., Aksoy, Serap, and Galvani, Alison P.
Abstract:: Genetic-modification strategies are currently being developed to reduce the transmission of vector-borne diseases, including African trypanosomiasis. For tsetse, the vector of African trypanosomiasis, a paratransgenic strategy is being considered: this approach involves modification of the commensal symbiotic bacteria Sodalis to express trypanosome-resistance-conferring products. Modified Sodalis can then be driven into...
Resource Type:: Article
Full Text:: Control Strategy for African Trypanosomiasis Jan Medlock1,2*, Katherine E. Atkins2, David N. Thomas2

Estimating heterotrophic respiration at large scales: challenges, approaches, and next steps

Creator:: Bond-Lamberty, Ben, Epron, Daniel, Harden, Jennifer, Harmon, Mark E., Hoffman, Forrest, Kumar, Jitendra, David McGuire, Anthony, and Vargas, Rodrigo
Abstract:: Heterotrophic respiration (HR), the aerobic and anaerobic processes mineralizing organic matter, is a key carbon flux but one impossible to measure at scales significantly larger than small experimental plots. This impedes our ability to understand carbon and nutrient cycles, benchmark models, or reliably upscale point measurements. Given that a new...
Resource Type:: Article
Full Text:: -Lamberty,1,† Daniel Epron,2 Jennifer Harden,3 Mark E. Harmon,4 Forrest Hoffman,5 Jitendra Kumar,5 Anthony

Does wildfire likelihood increase following insect outbreaks in conifer forests?

Creator:: Meigs, Garrett W., Campbell, John L., Zald, Harold S. J., Bailey, John D., Shaw, David C., and Kennedy, Robert E.
Abstract:: Although there is acute concern that insect-caused tree mortality increases the likelihood or severity of subsequent wildfire, previous studies have been mixed, with findings typically based on stand-scale simulations or individual events. This study investigates landscape- and regional-scale wildfire likelihood following outbreaks of the two most prevalent native insect pests...
Resource Type:: Article
Full Text:: ., & Kennedy, R. E. (2015). Does wildfire likelihood increase following insect outbreaks in conifer forests

ScholarsArchive@OSU

Amino Acid Uptake in Arbuscular Mycorrhizal Plants

Evaluation and improvement of the Community Land Model (CLM4) in Oregon forests

Predation on an Upper Trophic Marine Predator, the Steller Sea Lion: Evaluating High Juvenile Mortality in a Density Dependent Conceptual Framework

Amplification and dampening of soil respiration by changes in temperature variability

How Effective Are DNA Barcodes in the Identification of African Rainforest Trees?

Intra‐ and inter‐annual variation in gray whale body condition on a foraging ground

A new instrument to measure plot-scale runoff

Evaluating Paratransgenesis as a Potential Control Strategy for African Trypanosomiasis

Estimating heterotrophic respiration at large scales: challenges, approaches, and next steps

Does wildfire likelihood increase following insect outbreaks in conifer forests?

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