Dale Griffin, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 87
Anthrax and the geochemistry of soils in the contiguous United States Anthrax and the geochemistry of soils in the contiguous United States
Soil geochemical data from sample sites in counties that reported occurrences of anthrax in wildlife and livestock since 2000 were evaluated against counties within the same states (MN, MT, ND, NV, OR, SD and TX) that did not report occurrences. These data identified the elements, calcium (Ca), manganese (Mn), phosphorus (P) and strontium (Sr), as having statistically significant...
Authors
Dale W. Griffin, Erin E. Silvestri, Charlena Y. Bowling, Timothy Boe, David B. Smith, Tonya L. Nichols
The transport of nonindigenous microorganisms into caves by human visitation: a case study at Carlsbad Caverns National Park The transport of nonindigenous microorganisms into caves by human visitation: a case study at Carlsbad Caverns National Park
A series of atmospheric investigations was conducted in Carlsbad Cavern to determine if human visitation is a possible cause for the contamination of the cave system with non-indigenous microorganisms. In 2004, site-specific culture-based data demonstrated that Staphylococcus spp. colony-forming units (CFUs) were the most prevalent members of the atmospheric community along the paved...
Authors
Dale W. Griffin, Michael A. Gray, Michael B. Lyles, Diana E. Northup
USGS/EPA collection protocol for bacterial pathogens in soil USGS/EPA collection protocol for bacterial pathogens in soil
This Sample Collection Procedure (SCP) describes the activities and considerations for the collection of bacterial pathogens from representative surface soil samples (0-5 cm). This sampling depth can be reached without the use of a drill rig, direct-push technology, or other mechanized equipment. This procedure can be used in most soil types but is limited to sampling at or near the...
Authors
Dale W. Griffin, F.L. Shaefer, Charlena Bowling, Dino Mattorano, Tonya Nichols, Erin Silvestri
The global dispersion of pathogenic microorganisms by dust storms and its relevance to agriculture The global dispersion of pathogenic microorganisms by dust storms and its relevance to agriculture
Dust storms move an estimated 500–5000 Tg of soil through Earth’s atmosphere every year. Dust-storm transport of topsoils may have positive effects such as fertilization of aquatic and terrestrial ecosystems and the evolution of soils in proximal and distal environments. Negative effects may include the stripping of nutrient-rich topsoils from source regions, sandblasting of plant life...
Authors
Cristina Gonzalez-Martin, Nuria Teigell-Perez, Basilio Valladares, Dale W. Griffin
The quest for extraterrestrial life: what about the viruses? The quest for extraterrestrial life: what about the viruses?
Recently, viruses have been recognized as the most numerous entities and the primary drivers of evolution on Earth. Historically, viruses have been mostly ignored in the field of astrobiology due to the view that they are not alive in the classical sense and if encountered would not present risk due to their host-specific nature. What we currently know of viruses is that we are most...
Authors
Dale Warren Griffin
Impacts of migratory Sandhill Cranes (Grus canadensis) on microbial water quality in the central Platte River, Nebraska, USA Impacts of migratory Sandhill Cranes (Grus canadensis) on microbial water quality in the central Platte River, Nebraska, USA
Wild birds have been shown to be significant sources of numerous types of pathogens that are relevant to humans and agriculture. The presence of large numbers of migratory birds in such a sensitive and important ecosystem as the Platte River in central Nebraska, USA, could potentially serve a significant source of bird-derived pathogens in the water/sediment and riverine environment. In...
Authors
Jason R. Vogel, Dale W. Griffin, Hon S. Ip, Nicholas J. Ashbolt, Matthew T. Moser, Jingrang Lu, Mary K. Beitz, Hodon Ryu, Jorge W. Santo Domingo
Science and Products
Filter Total Items: 87
Anthrax and the geochemistry of soils in the contiguous United States Anthrax and the geochemistry of soils in the contiguous United States
Soil geochemical data from sample sites in counties that reported occurrences of anthrax in wildlife and livestock since 2000 were evaluated against counties within the same states (MN, MT, ND, NV, OR, SD and TX) that did not report occurrences. These data identified the elements, calcium (Ca), manganese (Mn), phosphorus (P) and strontium (Sr), as having statistically significant...
Authors
Dale W. Griffin, Erin E. Silvestri, Charlena Y. Bowling, Timothy Boe, David B. Smith, Tonya L. Nichols
The transport of nonindigenous microorganisms into caves by human visitation: a case study at Carlsbad Caverns National Park The transport of nonindigenous microorganisms into caves by human visitation: a case study at Carlsbad Caverns National Park
A series of atmospheric investigations was conducted in Carlsbad Cavern to determine if human visitation is a possible cause for the contamination of the cave system with non-indigenous microorganisms. In 2004, site-specific culture-based data demonstrated that Staphylococcus spp. colony-forming units (CFUs) were the most prevalent members of the atmospheric community along the paved...
Authors
Dale W. Griffin, Michael A. Gray, Michael B. Lyles, Diana E. Northup
USGS/EPA collection protocol for bacterial pathogens in soil USGS/EPA collection protocol for bacterial pathogens in soil
This Sample Collection Procedure (SCP) describes the activities and considerations for the collection of bacterial pathogens from representative surface soil samples (0-5 cm). This sampling depth can be reached without the use of a drill rig, direct-push technology, or other mechanized equipment. This procedure can be used in most soil types but is limited to sampling at or near the...
Authors
Dale W. Griffin, F.L. Shaefer, Charlena Bowling, Dino Mattorano, Tonya Nichols, Erin Silvestri
The global dispersion of pathogenic microorganisms by dust storms and its relevance to agriculture The global dispersion of pathogenic microorganisms by dust storms and its relevance to agriculture
Dust storms move an estimated 500–5000 Tg of soil through Earth’s atmosphere every year. Dust-storm transport of topsoils may have positive effects such as fertilization of aquatic and terrestrial ecosystems and the evolution of soils in proximal and distal environments. Negative effects may include the stripping of nutrient-rich topsoils from source regions, sandblasting of plant life...
Authors
Cristina Gonzalez-Martin, Nuria Teigell-Perez, Basilio Valladares, Dale W. Griffin
The quest for extraterrestrial life: what about the viruses? The quest for extraterrestrial life: what about the viruses?
Recently, viruses have been recognized as the most numerous entities and the primary drivers of evolution on Earth. Historically, viruses have been mostly ignored in the field of astrobiology due to the view that they are not alive in the classical sense and if encountered would not present risk due to their host-specific nature. What we currently know of viruses is that we are most...
Authors
Dale Warren Griffin
Impacts of migratory Sandhill Cranes (Grus canadensis) on microbial water quality in the central Platte River, Nebraska, USA Impacts of migratory Sandhill Cranes (Grus canadensis) on microbial water quality in the central Platte River, Nebraska, USA
Wild birds have been shown to be significant sources of numerous types of pathogens that are relevant to humans and agriculture. The presence of large numbers of migratory birds in such a sensitive and important ecosystem as the Platte River in central Nebraska, USA, could potentially serve a significant source of bird-derived pathogens in the water/sediment and riverine environment. In...
Authors
Jason R. Vogel, Dale W. Griffin, Hon S. Ip, Nicholas J. Ashbolt, Matthew T. Moser, Jingrang Lu, Mary K. Beitz, Hodon Ryu, Jorge W. Santo Domingo