Multi-elemental and Strontium-Neodymium Isotopic Signatures in Charred Wood: Potential for Wood Provenance Studies

Neodymium and strontium isotopic study of Australasian tektites: New constraints on the provenance and age of target materials

Nd and Sr isotopic studies of Australasian tektites provide info~ation on the age and provenance of the target materials and allow us to characterize the target area and the impact process leading to tektite formation. ENd values of australites, splash-form indochinites, and Muong Nong-type indochinites are indistinguishable within analytical uncertainty and average -11.5 cu. Depleted mantle Nd...

Studies in Wood Decay

Circumstantial evidence is presented which indicates that Polyporus volvatus is parasitic. Cultures of Polyporus volvatus and Fomes igniarius may be obtained from the young sporophores by the tissue method. In Polyporus volvatus the presence of the following enzymes was demonstrated: esterase, maltase, lactase, sucrase, raffinase, diastase, inulase, cellulase, hemicellulase, glucosidase, rennet...

How to Make a Beetle Out of Wood: Multi-Elemental Stoichiometry of Wood Decay, Xylophagy and Fungivory

The majority of terrestrial biomass is wood, but the elemental composition of its potential consumers, xylophages, differs hugely from that of wood. This causes a severe nutritional imbalance. We studied the stoichiometric relationships of 11 elements (C, N, P, K, Ca, Mg, Fe, Zn, Mn, Cu, Na) in three species of pine-xylem-feeding insects, Stictoleptura rubra, Arhopalus rusticus (Coleoptera, Cer...

Potential for Introduction of Preservative Treated Wood in Wood Waste Recycling Streams and its Prevention

The Role of Allelopathy, Heat, and Charred Wood in the Germination of Chaparral Herbs1

Assistant Professor of Biology Whittier College, Whittier, California 90608,USA; and Assistant Professor of Biology, Occidental College, Los Angeles, California 90041 Abstract: The herbaceous flora of the chaparral includes annual and perennial species which differ in their temporal relationship to fire. Germination cues for these herb groups could be expected to reflect these temporal differen...