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This article focuses on forestry herbicides in California national forests. California Indians continue the tradition of gathering of plant materials for food, medicine, and for ceremonial, or basketry uses. They are concerned about health risks associated with this traditional gathering, processing, and consuming of plant materials because of the potential exposure to herbicide residues from materials inadvertently gathered in or near herbicide treated areas of the National Forests. Glyphosate, triclopyr, and hexazinone are herbicides commonly applied before planting or in newly established conifer plantations to control competitive weeds.

Presents a study which used nucleotide sequences of mitochondrial DNA to analyze the phylogenetic relationships among populations of the genus Alviniconcha in hydrothermal areas in western Pacific. Materials and methods; Information on the populations of Alviniconcha gastropods; Summary of collection information for Alviniconcha specimens; Sequences of mitochondrial genes for cytochrome oxidase I.

The article presents a study on the residues of herbicides specifically glyphosate, triclopyr, and hexazinone in thirteen plant species in the areas of Eldorado, Lassen, Stanislus, and Sierra National Forests in California. The study was conducted to monitor plants that have potential exposures to herbicides in order to avoid Native Americans from collecting the said plant materials. The method of the study was carried out through collective sample of plant species and parts for discussion with Native Americans and site observation, and analytical method of the herbicides. The study reveals that 45 of 92 samples collected from inside treatment contained detectable residues of herbicides while 4 of 119 samples collected outside the treatment areas.

Analyzes the phylogenetic relationships of tube worms collected in Japan by nucleotide sequences. Analysis of the amino acid sequence; Occurrence of genetic differentiation; Identification of five species; Habitats of the species.