| zoonotic vector-borne bacterial pathogens in california mountain lions (puma concolor), 1987-2010. | sera collected from 442 mountain lions in 48 california counties between the years of 1987 and 2010 were tested using immunofluorescence assays and agglutination tests for the presence of antibodies reactive to yersinia pestis, francisella tularensis, bartonella henselae, borrelia burgdorferi, and anaplasma phagocytophilum antigens. data were analyzed for spatial and temporal trends in seropositivity. seroprevalences for b. burgdorferi (19.9%) and b. henselae (37.1%) were relatively high, with t ... | 2012 | 22925024 |
| potential oversummering and overwintering regions for the wheat stripe rust pathogen in the contiguous united states. | epidemics of wheat stripe rust, caused by puccinia striiformis f. sp. tritici (pst), are more frequent in the regions where pst can oversummer and overwinter. regions for potential oversummering and overwintering of pst were determined in the contiguous united states using a survival index (si) ranging from 0 (most unfavorable) to 10 (most favorable) developed based on long-term weather data. the pathogen can survive in cool summer in the most regions north of latitude 40°n, particularly washing ... | 2014 | 23722926 |
| the effects of perceptions of hazardous waste on migration: a laboratory experimental approach. | "this study develops a methodology that allows migration decision-making to be studied in a laboratory experimental setting. moreover, this methodology permits an examination of the importance of natural and man-made hazards in migration decisions--factors that have not been extensively studied as determinants of migration. the specific application is to the location of the u.s. nuclear waste repository at yucca mountain, nevada. empirical results suggest that the repository may influence emplo ... | 1997 | 12292900 |