Oak woodlands of Mediterranean ecosystems, a major component of biodiversity hotspots in Europe and North America, have undergone significant land-use change in recent centuries, including an increase in grazing intensity due to the widespread presence of cattle. Simultaneously, a decrease in oak regeneration has been observed, suggesting a link between cattle grazing intensity and limited oak ...

this experiment was carried out to investigate the effect of adaptation period to oak leave's tannin on rumen ph and ammonia, rumen microbial population, gas production and dry matter true digestibility (ivtdmd) in alamout goat’s rumen (with no previous history of oak leaf consumption) compared with markhoz goat (with previous history of oak leaf consumption). the goats were fed either oak...

Recent mortality in coast live oak (Quercus agrifolia), California black oak (Q. kelloggii), and tanoak (Lithocarpus densiflorus) exceeds historical levels in forests affected by the pathogen Phytophthora ramorum. We assessed the balance between recent mortality and seedling populations in these species to examine the status of regeneration in stands with varying levels of mortality caused by P...

Managers are often concerned about oak mortality in maturing mixed-oak forests, but they often lack explicit information about mortality risk for oaks that differ in species, size, crown class, competitive status, and growth rate. In eastern North America, tree species in the red oak group (Quercus Section Lobatae) are typically shorter lived than those in the white oak group (Section Quercus),...

A spatially explicit forest succession and disturbance model is used to delineate the extent and dispersion of oak decline under two fire regimes over a 150-year period. The objectives of this study are to delineate potential current and future oak decline areas using species composition and age structure data in combination with ecological land types, and to investigate how relatively frequent...

1 Aix Marseille Univ, CNRS, CINaM, Marseille, France, 2 Aix Marseille Univ, CNRS, Centrale Marseille, Institut Fresnel, Marseille, France, 3 Quantum Information Science, Computational Sciences and Engineering Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States, 4 BioEnergy Science Center (BESC), Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States,...

Tian Lan,1, ∗ C. W. Li,2 O. Hellman,1 J. A. Muñoz,1 H. Smith,1 D. L. Abernathy,3 and B. Fultz1 1Department of Applied Physics and Materials Science, California Institute of Technology, Pasadena, California 91125, USA 2Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA 3Quantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ri...

J. A. Sheikh, Y. Sun, and P. M. Walker Department of Physics, University of Surrey, Surrey, Guildford, GU2 5XH, England Tata Institute of Fundamental Research, Colaba, Bombay, 400 005, India Joint Institute for Heavy Ion Research, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996 Physics Division, O...

O. Delaire,1 A. F. May,2 M. A. McGuire,3 W. D. Porter,3 M. S. Lucas,1 M. B. Stone,1 D. L. Abernathy,1 V. A. Ravi,4,5 S. A. Firdosy,4 and G. J. Snyder2 1Neutron Scattering Science Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA 2California Institute of Technology, Pasadena, California 91125, USA 3Materials Science and Technology Division, Oak Ridge National Laboratory, O...

Quercus robur L. (pedunculate oak) and Quercus petraea (Matt.) Liebl. (sessile oak) are two European oak species of great economic and ecological importance. Even though both oaks have wide ecological amplitudes of suitable growing conditions, forests dominated by oaks often fail to regenerate naturally. The regeneration performance of both oak species is assumed to be subject to a variety of v...