The oak flora of North America north Mexico is both phylogenetically diverse and species-rich, including 92 species placed in five sections subgenus Quercus, the clade centered on Americas. Despite phylogenetic taxonomic progress genus over past 45 years, classification at subsectional level remains unchanged since early treatments by WL Trelease, AA Camus, CH Muller. In recent work, we used a ...

Higher biodiversity leads to more productive ecosystems which, in turn, supports more biodiversity. Ongoing global changes affect ecosystem productivity and, therefore, are expected to affect productivity-biodiversity relationships. However, the magnitude of these relationships may be affected by baseline biodiversity and its lifeforms. Cork oak (Quercus suber) woodlands are a highly biodiverse...

1. Andrzejczyk, T., Sewerniak, P., 2016. Soils and forest site types of the seed stands common (Quercus robur) sessile (Q. petraea) oaks in Poland. Sylwan 160(8), 674–683. (in Polish with English abstract) https://doi.org/10.26202/sylwa.... CrossRef Google Scholar

Phytophthora ramorum causes lethal canker diseases and extensive mortality in coast live oak (CLO) (Quercus agrifolia) and tanoak (Lithocarpus densiflorus). No practical controls are available for this disease in non-urban environments. Therefore, characterization of natural resistance is highly desirable. Variation in resistance to P. ramorum has been observed in CLO in both naturally infected...

*Amgen Inc, 1840 DeHavilland Drive, Thousand Oaks, California 91320; †Department of Neurology, UCLA School of Medicine, Los Angeles, California 90095; ‡Division of Hematology-Oncology, Department of Pediatrics, UCLA School of Medicine and Jonsson Comprehensive Cancer Center, Los Angeles, California 90095; and §Department of Pathology and Laboratory Medicine, UCLA School of Medicine, Los Angeles...

JOHN G. HOHMANN,1 THOMAS H. TEAL,2 DONALD K. CLIFTON,2 JAMES DAVIS,3 VICTOR J. HRUBY,4 GUOXIA HAN,4 AND ROBERT A. STEINER2,5 1Graduate Program in Neurobiology and Behavior, Departments of 2Obstetrics and Gynecology and 5Physiology and Biophysics, University of Washington, Seattle, Washington 98195; 3Amgen Corporation, Thousand Oaks, California 91320; and 4Department of Chemistry, University of ...