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Publications

Below is a list of WERC's peer-reviewed publications. If you are searching for a specific publication and cannot find it in this list, please contact werc_web@usgs.gov

Filter Total Items: 3776

Mechanism of smoke-induced seed germination in a post-fire chaparral annual Mechanism of smoke-induced seed germination in a post-fire chaparral annual

1  Smoke-stimulated germination in the post-fire flora of California chaparral does not appear to be triggered by nitrate. Application of freshly prepared unbuffered KNO3 solutions (pH c. 6.2) failed to enhance germination of five populations of Emmenanthe penduliflora or one Phacelia grandiflora population, regardless of light or stratification conditions. 2  KNO3 buffered at acidic pH...
Authors
Jon E. Keeley, C. J. Fotheringham

Heat content variation of Sierra Nevada conifers Heat content variation of Sierra Nevada conifers

A study of fuels of Siena Nevada conifer species showed that percent ash content, heat content with ash, and heat content without ash of needle and duff fuels significantly varied by species, fuel component, and developmental stage of the overstory. Ash and heat contents of woody fuels varied by species and fuel component but not by developmental stage. Bark fuels significantly differed...
Authors
J. W. van Wagdendonk, W.M. Sydoriak, J.M. Benedict

Metal and trace element burdens in two shorebird species at two sympatric wintering sites in southern California Metal and trace element burdens in two shorebird species at two sympatric wintering sites in southern California

In January and November, 1994, ten willets (Catoptrophorus semipalmatus) and ten black-bellied plovers (Pluvialis squatarola) were collected at a south-facing sandy beach at the North Island Naval Air Station (NASNI) and ten willets and three plovers were collected at the Tijuana Slough National Wildlife Refuge (TSNWR), 16 km to the southeast. Concentrations of 19 inorganic analytes were
Authors
Clifford A. Hui

Pathology of diseases in wild desert tortoises from California Pathology of diseases in wild desert tortoises from California

Twenty-four ill or dead desert tortoises (Gopherus agassizii) were received between March 1992 and July 1995 for necropsies from the Mojave and Colorado deserts of California (USA). Diseases observed in these animals included cutaneous dyskeratosis (n = 7); shell necrosis (n = 2); respiratory diseases (n = 7); urolithiasis (n = 3); and trauma (n = 5). In tortoises with cutaneous...
Authors
B.L. Homer, K.H. Berry, Mary E. Brown, G. Ellis, E.R. Jacobson
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