| levels of integration in mammalian dentitions: an analysis of correlations in nesophontes micrus (insectivora) and oryzomys couesi (rodentia). | | 1969 | 28562885 |
| living on the edge: roads and edge effects on small mammal populations. | 1. roads may affect wildlife populations through habitat loss and disturbances, as they create an abrupt linear edge, increasing the proportion of edge exposed to a different habitat. three types of edge effects have been recognized: abiotic, direct biotic, and indirect biotic. 2. we explored the direct biotic edge effects of 3- to 4-m wide roads, and also a previously unrecognized type of edge effect: social. we live-trapped two threatened endemic rodents from cozumel island (oryzomys couesi co ... | 2009 | 19426252 |
| experimental infections of oryzomys couesi with sympatric arboviruses from mexico. | coues rice rat (oryzomys couesi), a species abundant throughout central america, was evaluated experimentally for the ability to serve as an amplifying host for three arboviruses: patois (bunyaviridae, orthobunyavirus), nepuyo (orthobunyavirus), and venezuelan equine encephalitis virus subtype id (togaviridae, alphavirus). these three viruses have similar ecologies and are known to co-circulate in nature. animals from all three cohorts survived infection and developed viremia with no apparent si ... | 2010 | 20134016 |
| experimental infection of potential reservoir hosts with venezuelan equine encephalitis virus, mexico. | in 1993, an outbreak of encephalitis among 125 affected equids in coastal chiapas, mexico, resulted in a 50% case-fatality rate. the outbreak was attributed to venezuelan equine encephalitis virus (veev) subtype ie, not previously associated with equine disease and death. to better understand the ecology of this veev strain in chiapas, we experimentally infected 5 species of wild rodents and evaluated their competence as reservoir and amplifying hosts. rodents from 1 species (baiomys musculus) s ... | 2009 | 19331726 |
| genetic characterization and phylogeny of a hantavirus from western mexico. | hantaviruses can cause two serious illnesses when transmitted from their rodent reservoirs to humans; hantavirus pulmonary syndrome (hps) in the new world and hemorrhagic fever with renal syndrome in the old world. cases of hps were first recognized in the americas in small, focal outbreaks in rural populations in the southwestern usa in 1993. since that time, outbreaks as well as sporadic cases of hps have been recognized throughout the americas. remarkably, hps cases have not been reported in ... | 2008 | 17963942 |
| catacamas virus, a hantaviral species naturally associated with oryzomys couesi (coues' oryzomys) in honduras. | the primary objective of this study was to extend our knowledge of the geographical distribution, genetic diversity, and natural host associations of the hantaviruses indigenous to north america. antibody to a hantavirus was found in 5 (20.8%) of 24 coues' oryzomys (oryzomys couesi) and none of 41 other rodents captured near the town of catacamas in eastern honduras, and a hantavirus was isolated from one of the antibody-positive coues' oryzomys. analyses of nucleotide and amino acid sequence da ... | 2006 | 17124003 |
| swimming ability in three costa rican dry forest rodents. | we investigated the swimming abilities of three costa rican dry forest rodents (coues' rice rat. oryzomys couesi, hispid cotton rat, sigmodon hispidus, and spiny pocket mouse, liomys salvini) associated with a large marsh, laguna palo verde, using 90 s swim trials in a plastic container. swimming ability was evaluated by observing the use of limbs and tail in the water, inclination to the surface, and diving and floating behavior. rice rats could float, swim and dive, suggesting that they can ex ... | 2001 | 12189799 |