Jennifer Ramp Neale

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Concentrations of many anthropogenic contaminants in the San Francisco Estuary exist at levels that have been associated with biological effects elsewhere, so there is a potential for them to cause biological effects in the Estuary. The purpose of this paper is to summarize information about biological effects on the Estuary's plankton, benthos, fish,(More)
The genus Sclerocactus (Cactaceae) consists of 15 species, which have a confused taxonomic history due to morphological similarities and distribution overlap. Habitat loss and hybridization are of concern and have established cause for genetic investigations to further understand the genus and develop conservation strategies. Thirteen variable(More)
Natural interspecific hybridization within plants is relatively common and plays an important evolutionary role. Hybridization between rare and common taxa is of concern due to questions of protection status related to hybrids. However, field based identification of hybrid plants can be challenging. Sclerocactus glaucus (Cactaceae), the Colorado hookless(More)
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