| sylvatic plague studies in southeast new mexico. ii. relationships of the desert cottontail and its fleas. | | 1978 | 633288 |
| experimental studies of st. louis encephalitis virus in vertebrates. | serologically negative birds and mammals of species, known from other studies to be exposed naturally to st. louis encephalitis (sle) virus in memphis, tennessee, and other selected species were inoculated experimentally with strains of sle virus to determine their potential as natural hosts. mosquitoes (culex sp.) were allowed to feed on some of the inoculated vertebrate species, held for 14 days, and tested for sle infection. the cardinals (richmondena cardinalis), robins (turdus migratorius), ... | 1985 | 3999258 |
| eimeria (protozoa: eimeriidae) of the cottontail rabbit sylvilagus audubonii in northeastern colorado, with descriptions of three new species. | | 1969 | 5817317 |
| outbreak of rabbit hemorrhagic disease virus 2 in the southwestern united states: first detections in southern california. | an outbreak of rabbit hemorrhagic disease virus 2 (rhdv2)-associated disease occurred in the southwestern united states following its first detection in new mexico in march 2020. the disease spread throughout several states and was diagnosed for the first time in california on may 11, 2020, in a black-tailed jackrabbit (lepus californicus). the following day, the california department of food and agriculture (cdfa) issued an order banning the entrance into california of several lagomorph species ... | 2021 | 33797311 |
| pathology of lagovirus europaeus gi.2/rhdv2/b (rabbit hemorrhagic disease virus 2) in native north american lagomorphs. | rabbit hemorrhagic disease, a notifiable foreign animal disease in the us, was reported for the first time in wild native north american lagomorphs in april 2020 in the southwestern us. affected species included the desert cottontail (sylvilagus audubonii), mountain cottontail (sylvilagus nuttallii), black-tailed jackrabbit (lepus californicus), and antelope jackrabbit (lepus alleni). desert cottontails (n=7) and black-tailed jackrabbits (n=7) collected in april and may 2020 were necropsied at t ... | 2021 | 33961043 |
| longitudinal study of bacterial infectious agents in a community of small mammals in new mexico. | background and objectives: vector-borne bacterial diseases represent a substantial public health burden and rodents have been recognized as important reservoir hosts for many zoonotic pathogens. this study investigates bacterial pathogens in a small mammal community of the southwestern united states of america. methods: a total of 473 samples from 13 wild rodent and 1 lagomorph species were tested for pathogens of public health significance: bartonella, brucella, yersinia, borrelia, rickettsia s ... | 2020 | 32159462 |
| clostridial enterotoxemia and coccidiosis in weanling cottontail rabbits ( sylvilagus audubonii, sylvilagus floridanus, sylvilagus nuttallii) from colorado, usa. | wild cottontail rabbits ( sylvilagus spp.), especially young individuals, are one of the most frequent wildlife species presented for rehabilitation at wildlife rehabilitation centers. these species are challenging to rehabilitate, with gastrointestinal (gi) disease being a major cause of morbidity and mortality during the weaning stage. two organisms, clostridium spiroforme and eimeria spp., are frequently associated with gi disease in young domestic rabbits ( oryctolagus cuniculus) and can res ... | 2019 | 30096028 |
| native lagomorphs suppress grass establishment in a shrub-encroached, semiarid grassland. | shrub encroachment into arid grasslands has been associated with reduced grass abundance, increased soil erosion, and local declines in biodiversity. livestock overgrazing and the associated reduction of fine fuels has been a primary driver of shrub encroachment in the southwestern united states, but shrublands continue to persist despite livestock removal and grassland restoration efforts. we hypothesized that an herbivory feedback from native mammals may contribute to continued suppression of ... | 2019 | 30680115 |
| weather and prey predict mammals' visitation to water. | throughout many arid lands of africa, australia and the united states, wildlife agencies provide water year-round for increasing game populations and enhancing biodiversity, despite concerns that water provisioning may favor species more dependent on water, increase predation, and reduce biodiversity. in part, understanding the effects of water provisioning requires identifying why and when animals visit water. employing this information, by matching water provisioning with use by target species ... | 2015 | 26560518 |
| cottontail rabbit papillomavirus infection in a desert cottontail (sylvilagus audubonii) from colorado, usa. | a wild-caught desert cottontail rabbit (sylvilagus audubonii) from colorado was observed to have large, pedunculated, dark cutaneous lesions on its abdomen and cylindrical masses on its mouth. morphologically, the masses were consistent with previous reports of virally induced papillomas. subsequent dna analysis indicated widespread infection with cottontail rabbit papillomavirus. | 2013 | 24502742 |
| host-specificity of myxoma virus: pathogenesis of south american and north american strains of myxoma virus in two north american lagomorph species. | the pathogenesis of south american and north american myxoma viruses was examined in two species of north american lagomorphs, sylvilagus nuttallii (mountain cottontail) and sylvilagus audubonii (desert cottontail) both of which have been shown to have the potential to transmit the south american type of myxoma virus. following infection with the south american strain (lausanne, lu), s. nuttallii developed both a local lesion and secondary lesions on the skin. they did not develop the classical ... | 2010 | 19836172 |
| detection of babesia and anaplasma species in rabbits from texas and georgia, usa. | rabbits have been shown to harbor a suite of zoonotic organisms, including a babesia species, borrelia burgdorferi, and anaplasma phagocytophilum. in this study, we conducted a molecular survey for various tick-borne pathogens in three species of rabbits from texas and georgia. of 18 black-tailed jackrabbits (lepus californicus) tested from texas, six (28%) were polymerase chain reaction (pcr) positive for babesia, and nucleotide sequencing revealed two distinct species or strains. two jackrabbi ... | 2006 | 16584322 |
| phylogenetic relationships of cottontails (sylvilagus, lagomorpha): congruence of 12s rdna and cytogenetic data. | the genus sylvilagus, which comprises the new world cottontail rabbits, contains several commercially important as well as endangered (or threatened) species. understanding the evolution of this group is pertinent to their management and conservation. the purpose of this study was to examine the evolutionary history of the cottontails using sequence data from the mitochondrial 12s rrna gene. the 12s data provide a robust phylogeny which was supported under a variety of phylogenetic approaches an ... | 1997 | 9187089 |
| evolution of chromosomal variation in cottontails, genus sylvilagus (mammalia: lagomorpha). ii. sylvilagus audubonii, s. idahoensis, s. nuttallii, and s. palustris. | chromosomes from cultured fibroblasts of four cottontail species (sylvilagus audubonii, 2n = 42; s. idahoensis, 2n = 44; s. nuttallii, 2n = 42; and s. palustris, 2n = 38) were analyzed using g- and c-banding techniques. the evolutionary restructuring of the genomes of these species was traced by comparing their banded chromosomes to those of lepus saxatilis, a species of hare in which the leporid ancestral karyotype is thought to have been conserved. chromosomal evolution appears to have proceed ... | 1984 | 6510022 |
| acclimatization of thermoregulation in the desert cottontail, sylvilagus audubonii. | | 1973 | 4744934 |
| ectoparasites of sympatric cottontails (sylvilagus audubonii nelson) and jack rabbits (lepus californicus mearns) from the high plains of eastern new mexico. | eight species of ectoparasites were recovered from 35 sylvilagus audubonii and 35 lepus californicus occurring sympatrically near the clovis-portales area of eastern new mexico. recovered were anoplura (haemodipsus setoni), diptera (cuterebra lepusculi and cuterebra ruficrus), siphonaptera (echidnophaga gallinacea and euhoplopsyllus glacialis), and acari (ornithodoros parkeri, dermacentor parumapertus, and haemaphysalis leporispalustris). jaccard's index showed a 50% ectoparasitic overlap with h ... | 1988 | 3418460 |
| helminths of sympatric black-tailed jack rabbits (lepus californicus) and desert cottontails (sylvilagus audubonii) from the high plains of eastern new mexico. | thirty-five desert cottontails (sylvilagus audubonii) and 35 black-tailed jack rabbits (lepus californicus), occurring sympatrically near the clovis-portales area of eastern new mexico were infected with four species of eucestoda (adults of raillietina salmoni and raillietina selfi, larvae of taenia pisiformis and taenia serialis). raillietina salmoni and t. pisiformis more commonly infected s. audubonii. raillietina selfi was found in near equal prevalence in both host species. taenia serialis ... | 1988 | 3373649 |
| borrelia sp. infection in coyotes, black-tailed jack rabbits and desert cottontails in southern texas. | coyotes (canis latrans) from southern texas were sampled for antibodies to borrelia burgdorferi from 1980 to 1986; black-tailed jack rabbits (lepus californicus) and desert cottontails (sylvilagus audubonii) were sampled in 1986. coyote fetuses, adult coyote kidneys, and black-tailed jack rabbit and desert cottontail kidneys were cultured for b. burgdorferi in 1986. results of indirect immunofluorescent antibody (ifa) tests for b. burgdorferi in coyotes were as follows (number positive at a dilu ... | 1989 | 2644452 |
| persistence of mosquito-borne viruses in kern county, california, 1983-1988. | the persistence of arboviruses was studied from 1983 to 1988 in mixed agriculture, marsh, riparian, and foothill habitats in kern county, ca. western equine encephalomyelitis (wee) virus was isolated frequently during 1983 from culex tarsalis and aedes melanimon and was detected by the seroconversion of sentinel chickens. wee virus then disappeared, even though vector competence studies during 1984-1986 showed that cx. tarsalis was able to transmit wee virus. st. louis encephalitis (sle) virus w ... | 1990 | 2240370 |
| sacral variability in tailless species: homo sapiens and ochotona princeps. | homo sapiens is variable in number of sacral vertebrae, and this variability can lead to obstetrical complication. this study uses the comparative method to test the hypothesis that sacral variability in h. sapiens is associated with absence of a tail. three species of lagomorphs are studied: ochotona princeps (n = 271), which is tailless, and lepus californicus (n = 212) and sylvilagus audubonii (n = 206), which have tails. results show that o. princeps has (1) higher diversity index for number ... | 2017 | 28406565 |