comments on reproduction in the deer mouse of wyoming. | | 1964 | 14248841 |
prevalence of yersinia pestis in rodents and fleas associated with black-tailed prairie dogs (cynomys ludovicianus) at thunder basin national grassland, wyoming. | rodents (and their fleas) that are associated with prairie dogs are considered important for the maintenance and transmission of the bacterium (yersinia pestis) that causes plague. our goal was to identify rodent and flea species that were potentially involved in a plague epizootic in black-tailed prairie dogs at thunder basin national grassland. we collected blood samples and ectoparasites from rodents trapped at off- and on-colony grids at thunder basin national grassland between 2002 and 2004 ... | 2008 | 18689663 |
plague in a complex of white-tailed prairie dogs and associated small mammals in wyoming. | fleas were collected from white-tailed prairie dogs (cynomys leucurus) and other small mammals trapped on six grids during a field study near meeteetse (wyoming, usa) in 1989 and 1990 to investigate the dynamics of plague in this rodent population. fleas were identified and tested for yersinia pestis by mouse inoculation. yersinia pestis-positive fleas were found on prairie dogs and in their burrows. flea species on prairie dogs changed from spring to late summer. white-tailed prairie dog number ... | 1997 | 9391955 |
mitochondrial dna phylogeography in northern grasshopper mice (onychomys leucogaster)--the influence of quaternary climatic oscillations on population dispersion and divergence. | the details of mitochondrial dna (mtdna) phylogenetic structure of the northern grasshopper mouse onychomys leucogaster were examined using populations from a postulated area of endemism that includes three arid regions (colorado plateaus, interior plains, and wyoming basins) in western north america. fifteen tetra- and heptanucleotide restriction enzymes were used to assay restriction-site variation in a 2150-bp pcr-amplified fragment of mtdna representing the nd2 and part of the coi gene regio ... | 1993 | 8167852 |
using extant patterns of dental variation to identify species in the primate fossil record: a case study of middle eocene omomys from the bridger basin, southwestern wyoming. | patterns of extant primate dental variation provide important data for interpreting taxonomic boundaries in fossil forms. here i use dental data from several well-known living primates (as well as data from selected eocene forms) to evaluate dental variation in middle eocene omomys, the first north american fossil primate identified by paleontologists. measurements were collected from a sample of 148 omomyid dental specimens recovered from bridger b localities in the bridger basin, wyoming. most ... | 2008 | 18246298 |