Acknowledgements: We thank John McMillan, David Laibson, Colin Camerer, and three anonymous referees for useful comments. We thank Mandar Oak and Rosa Stipanovic for research assistance. For financial support, Frederick and Loewenstein thank the Integrated Study of the Human Dimensions of Global Change at Carnegie Mellon University (NSF Grant SBR-9521914), and O’Donoghue thanks the National Sci...

Oak savanna is one of the most endangered ecosystems of North America, with less than 0.02% of its original area remaining. Here we test whether oak savanna supports a unique community of ectomycorrhizal fungi, a higher diversity of ectomycorrhizal fungi or a greater proportional abundance of ascomycete fungi compared with adjacent areas where the absence of fire has resulted in oak savanna con...

1. Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831 2. The Institute for Functional Imaging of Materials, Oak Ridge National Laboratory, Oak Ridge, TN 37831 3. Department of Materials Science and Engineering, University of Tennessee, Knoxville, Knoxville TN 37996 4. Materials Sciences and Technology Division, Oak Ridge National Laboratory, Oak Ridge, T...

Oak regeneration problems have been noted in the Missouri Ozarks and elsewhere in the eastern United States. Alteration of disturbance regimes, competition from nonoak species, and high overstory stocking are believed to be major barriers that impede oak regeneration. We studied regeneration in upland oak forests that were harvested by both even-aged (clearcutting) and uneven-aged (single-tree ...

INTRODUCTION Radiographic pathology of severe osteoarthritis of the knee (OAK) such as severe osteophyte at tibial spine (TS), compartment narrowing, marginal osteophyte, and subchondral sclerosis is well known. Kellgren-Lawrence grading system, which is widely used to diagnose OAK, describes narrowing-marginal osteophyte in 4-grades but uses osteophyte at TS only as evidence of OAK without det...

Hengfu Yin, Chun Ju Chen, Jun Yang, David J. Weston, Jin-Gui Chen, Wellington Muchero, Ning Ye, Timothy J. Tschaplinski, Stan D. Wullschleger, Zong-Ming (Max) Cheng, Gerald A. Tuskan, and Xiaohan Yang 1Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA 2BioEnergy Science Center, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA 3Environmental Scien...

Background: Over the last decade, a significant area of Zagros forests, especially in Ilam Province, west Iran, has been affected by phenomenon oak decline. The most basic item for fighting decline these forests is to know site suitability, parameters affecting it, determining criteria and preparing map potential forests. In this study, efficiency Maxent on suitability Dalab Bankol important P....

Abstract Quercus ilex may be considered the queen tree of Mediterranean Basin, dominating coastal forest areas up to 2000 m above sea level at some sites. However, an increase in holm oak decline has been observed last decade. In this review, we analysed current literature answer following questions: what are traits that allow thrive environment, and main factors currently weakening species? fr...

this study was conducted to investigate the influences of raw or acetic acid-treated oak acornon the performance and cecal flora of broiler chickens. a total of 340 one-day-old male and female cobb 500 broiler chicks were used in a completely randomized design consisting of five treatments with four replicates and 17 chicks each. first group was fed with a corn-based diet (without oak acorn) as...

The black oaks of California include 4 tree species (California black oak, coast live oak, Shreve oak, interior live oak) that are known to hybridize. Complex patterns of population variation within each species are likely to result from these hybrid combinations and from subsequent introgressions. We have been studying population variation using biochemical and molecular markers and report res...