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Bat Guano Virome: Predominance of Dietary Viruses from Insects and Plants plus Novel Mammalian Viruses
This initial characterization of the bat guano virome, the first metagenomic analysis of viruses in wild mammals using second-generation sequencing, showed the presence of previously unidentified viral species, genera, and possibly families. Expand
Pesticides and amphibian population declines in California, USA.
It is found that cholinesterase activity in tadpoles was depressed in mountainous areas east of the Central Valley compared with sites along the coast or north of the Valley, and evidence that pesticides are instrumental in declines of these species is provided. Expand
Comparative toxicity of chlorpyrifos, diazinon, malathion and their oxon derivatives to larval Rana boylii.
It is concluded that environmental concentrations of these pesticides can be harmful to R. boylii populations. Expand
Summertime transport of current‐use pesticides from California's Central Valley to the Sierra Nevada Mountain Range, USA
Aricultural activity in California's Central Valley may be an important source of pesticides that are transported in the air to the Sierra Nevada Mountain Range, USA. Pesticides applied to thisExpand
Collapse of a Regional Frog Fauna in the Yosemite Area of the California Sierra Nevada, USA
There has been much concern about widespread declines among amphibians, but efforts to determine the extent and magnitude of these declines have been hampered by scarcity of comparative inventoryExpand
The genetics of amphibian declines: population substructure and molecular differentiation in the Yosemite Toad, Bufo canorus (Anura, Bufonidae) based on single‐strand conformation polymorphism
A comprehensive survey of genetic variation across the range of the narrowly distributed Yosemite toad Bufo canorus, a declining amphibian restricted to the Sierra Nevada of California, suggests that management for B. canorus should focus at the individual pond level, and effective management may necessitate reintroductions if local extirpations occur. Expand
Oral Chytridiomycosis in the Mountain Yellow-Legged Frog (Rana muscosa)
The presence of B. dendrobatidis in larval and recently metamorphosed mountain yellow-legged frogs (Rana muscosa) in or near the Sierra Nevada Mountains of California is reported, an area where declines have been documented in all five species of native anurans. Expand
Disappearance of the cascades frog Rana cascadae at the southern end of its range, California, USA
The loss of frogs suggests that some common management practices in parks and wilderness areas may be endangering some of the species these areas are intended to protect, and similar local factors may account for amphibian declines reported elsewhere. Expand
Pesticides in mountain yellow-legged frogs (Rana muscosa) from the Sierra Nevada Mountains of California, USA.
In frog tissues, dichlorodiphenyldichloroethylene (DDE) concentration was one to two orders of magnitude higher than the other organochlorines (46+/-20 ng/g wet wt at Tablelands and 17+/-8 Sixty Lakes). Expand
Aggression, territoriality, and mating behaviour in North American treefrogs
The behaviour described for H. versicolor is compared with that seen in eight other species of North American Hyla and indicates that dominant males that lose vocal interactions or fights sometimes cease calling and remain silent within the territory of other, dominant males. Expand