Index Catalog // ScholarsArchive@OSU

A comparison of daily water use estimates derived from constant-heat sap-flow probe values and gravimetric measurements in pot-grown saplings.

Creator:: McCulloh, Katherine A., Winter, Klaus, Meinzer, Frederick C., Garcia, Milton, Aranda, Jorge, and Lachenbruch, Barbara
Abstract:: Use of Granier-style heat dissipation sensors to measure sap flow is common in plant physiology, ecology and hydrology. There has been concern that any change to the original Granier design invalidates the empirical relationship between sap flux density and the temperature difference between the probes. Here, we compared daily water...
Resource Type:: Article
Full Text:: ,'-3 KLAUS WINTER: FREDERICK C. MEINZER? MILTON GARCIA? JORGE ARANDA~ and BARBARA LACHENBRUCH

The CO2 tracer clock for the Tropical Tropopause Layer

Creator:: Park, S., Jimenez, R., Daube, B. C., Pfister, L., Conway, T. J., Gottlieb, E. W., Chow, V. Y, Curran, D. J., Matross, D. M., Bright, A., Atlas, E. L., Bui, T. P., Gao, R.-S., Twohy, Cynthia, and Wofsy, S. C.
Abstract:: Observations of CO2 were made in the upper troposphere and lower stratosphere in the deep tropics in order to determine the patterns of large-scale vertical transport and age of air in the Tropical Tropopause Layer (TTL). Flights aboard the NASA WB-57F aircraft over Central America and adjacent ocean areas took...
Resource Type:: Article
Full Text:: acp-7-3989-2007.pdf Atmos. Chem. Phys., 7, 3989–4000

Microhabitat associations of northern flying squirrels in burned and thinned forest stands of the Sierra Nevada

Creator:: Meyer, Marc D., Kelt, Douglas A., and North, Malcolm P.
Abstract:: Prescribed burning and mechanical thinning are used to manage fuels within many western North American forest ecosystems, but few studies have examined the relative impacts of these treatments on forest wildlife. We sampled northern flying squirrels (Glaucomys sabrinus) and microhabitat variables in burned, thinned and control stands of mixed-conifer forest...
Resource Type:: Article
Full Text:: and Thinned Forest Stands of the Sierra Nevada MARC D. MEYER1 USDA Forest Service, Pacific Southwest

Large fluctuations of dissolved oxygen in the Indian and Pacific oceans during Dansgaard-Oeschger oscillations caused by variations of North Atlantic Deep Water Subduction: Paleoceanography

Creator:: Schmittner, Andreas, Galbraith, Eric D., Hostetler, Steven W., Pedersen, Thomas F., and Zhang, Rong
Abstract:: Paleoclimate records from glacial Indian and Pacific oceans sediments document millennial-scale fluctuations of subsurface dissolved oxygen levels and denitrification coherent with North Atlantic temperature oscillations. Yet the mechanism of this teleconnection between the remote ocean basins remains elusive. Here we present model simulations of the oxygen and nitrogen cycles that...
Resource Type:: Article
Full Text:: Atlantic Deep Water subduction 5 Andreas Schmittner,1 Eric D. Galbraith,2,3 Steven W. Hostetler,4,5 Thomas

Impact of climate forcing on ecosystem processes in the North Pacific Subtropical Gyre

Creator:: Corno, Guido, Karl, David M., Church, Matthew J., Letelier, Ricardo M., Lukas, Roger, Bidigare, Robert R., and Abbott, Mark R.
Abstract:: Measurements at the Hawaii Ocean Time-series (HOT) Station ALOHA (22 degrees 45'N, 158 degrees W) have revealed a significant, approximately 50% increase in euphotic zone depth-integrated rates of primary production ( PP; mol C fixed m(-2) d(-1)) based on in situ C-14 experiments. The character of the nearly two-decade increasing...
Resource Type:: Article
Full Text:: : Corno, G., D. M. Karl, M. J. Church, R. M. Letelier, R. Lukas, R. R. Bidigare, and M. R. Abbott (2007

An Observation of Clostridium perfringens in Greater Sage-Grouse

Creator:: Hagen, Christian A. and Bildfell, Robert J.
Abstract:: Mortality due to infectious diseases is seldom reported in the Greater Sage-Grouse (Centrocercus urophasianus). A case of necrotic enteritis associated with Clostridium perfringens type A is described in a free-ranging adult male sage-grouse in eastern Oregon. Clostridial enteritis is known to cause outbreaks of mortality in various domestic and wild...
Resource Type:: Article
Full Text:: . D. I. 1977. Sage grouse flock characteristics and habitat selection in winter. Journal of Wildlife

Multiproxy assessment of the western equatorial Pacific hydrography during the last 30 kyr

Creator:: de Garidel-Thoron, Thibault, Rosenthal, Yair, Beaufort, Luc, Bard, Edouard, Sonzogni, Corinne, and Mix, Alan C.
Abstract:: Sea surface temperature (SST) and salinity of the Western Pacific Warm Pool (WPWP) reflect global climate effects such as the El Niño–Southern Oscillation phenomenon. However, reconstructions of past changes in the WPWP from the geologic record vary depending on the specific proxy record used. Here we develop a multiproxy record...
Resource Type:: Article
Full Text:: November 2006; accepted 1 February 2007; published 26 July 2007. [1] Sea surface temperature (SST) and

Physiological and behavioral response to intra-abdominal transmitter implantation in Steller sea lions

Creator:: Mellish, Jo-Ann, Thornton, Jamie, and Horning, Markus
Abstract:: The absence of a direct, long-term measure of individual Steller sea lion survival led to the development of implanted, delayed transmission satellite tags specifically for this species (Life History Transmitter, LHX). To assess possible effects of implant procedures and LHX tags, we undertook a two-stage approach to monitor: 1) immediate...
Resource Type:: Article
Full Text:: , J., Petrauskas, L., Atkinson, S., Calkins, D., 2007. Physiological response to hot-branding in

Direct radiative effect of mineral dust and volcanic aerosols in a simple aerosol climate model

Creator:: Shell, Karen M. and Somerville, Richard C. J.
Abstract:: Airborne mineral dust can influence the climate by altering the radiative properties of the atmosphere, but the magnitude of the effect is uncertain. An idealized global model is developed to study the dust-climate system. The model determines the dust longwave and shortwave direct radiative forcing, as well as the resulting...
Resource Type:: Article
Full Text:: February 2006; revised 7 August 2006; accepted 12 September 2006; published 8 February 2007. [1] Airborne

Modeling the Winter–to–Summer Transition of Prokaryotic and Viral Abundance in the Arctic Ocean

Creator:: Winter, Christian, Payet, Jérôme P., and Suttle, Curtis A.
Abstract:: One of the challenges in oceanography is to understand the influence of environmental factors on the abundances of prokaryotes and viruses. Generally, conventional statistical methods resolve trends well, but more complex relationships are difficult to explore. In such cases, Artificial Neural Networks (ANNs) offer an alternative way for data analysis....
Resource Type:: Article
Full Text:: pone.0052794 1..14 Modeling the Winter–to–Summer Transition of

ScholarsArchive@OSU

A comparison of daily water use estimates derived from constant-heat sap-flow probe values and gravimetric measurements in pot-grown saplings.

The CO2 tracer clock for the Tropical Tropopause Layer

Microhabitat associations of northern flying squirrels in burned and thinned forest stands of the Sierra Nevada

Large fluctuations of dissolved oxygen in the Indian and Pacific oceans during Dansgaard-Oeschger oscillations caused by variations of North Atlantic Deep Water Subduction: Paleoceanography

Impact of climate forcing on ecosystem processes in the North Pacific Subtropical Gyre

An Observation of Clostridium perfringens in Greater Sage-Grouse

Multiproxy assessment of the western equatorial Pacific hydrography during the last 30 kyr

Physiological and behavioral response to intra-abdominal transmitter implantation in Steller sea lions

Direct radiative effect of mineral dust and volcanic aerosols in a simple aerosol climate model

Modeling the Winter–to–Summer Transition of Prokaryotic and Viral Abundance in the Arctic Ocean

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