| spatial analysis of the distribution of ixodes dammini (acari: ixodidae) on white-tailed deer in ogle county, illinois. | the pattern of infestations of ixodes dammini on white-tailed deer in ogle county in illinois was studied through examinations of hunted deer from 1988 to 1990. the illinois geographic information system mapped the spatial distribution of tick infestations on deer and related it to a known endemic focus for i. dammini and borrelia burgdorferi (castle rock state park), and to a major waterway (rock river). second-order neighborhood analysis was used to analyze the spatial distribution of deer aro ... | 1992 | 1495039 |
| white-tailed deer as a potential reservoir of ehrlichia spp. | we determined the antibody prevalence to ehrlichia spp., in white-tailed deer (odocoileus virginianus) and the geographic distribution of seropositive animals in 84 counties in alabama, arkansas, florida, georgia, illinois, kentucky, louisiana, maryland, massachusetts, mississippi, missouri, north carolina, south carolina, tennessee, texas, virginia, and west virginia (usa). using an indirect fluorescent antibody test we detected antibodies (> or = 1:128) to this bacterium in 544 (43%) of 1269 d ... | 1994 | 8028099 |
| prion sequence polymorphisms and chronic wasting disease resistance in illinois white-tailed deer (odocoileus virginianus). | nucleic acid sequences of the prion gene (prnp) were examined and genotypes compiled for 76 white-tailed deer from northern illinois, which previously tested positive for chronic wasting disease (cwd), and 120 negative animals selected to control for geographic location and age. nine nucleotide polymorphisms, seven silent and two coding, were found in the sampled population. all observed polymorphisms except two of very low frequency were observed in both negative and positive animals, although ... | 2008 | 19164895 |
| detection of a novel reassortant epizootic hemorrhagic disease virus (ehdv) in the usa containing rna segments derived from both exotic (ehdv-6) and endemic (ehdv-2) serotypes. | epizootic hemorrhagic disease virus (ehdv) is a culicoides-transmitted orbivirus that infects domestic and wild ruminants and is provisionally thought to be distributed throughout africa, north america, australia, east asia and the middle east. historically, of the seven proposed serotypes of ehdv, only ehdv-1 and ehdv-2 have been reported from north america. in 2006, ehdv isolates were recovered from moribund or dead white-tailed deer (odocoileus virginianus) in indiana and illinois that could ... | 2010 | 19828758 |
| influence of landscape factors and management decisions on spatial and temporal patterns of the transmission of chronic wasting disease transmission in white-tailed deer. | chronic wasting disease (cwd) has been reported in white-tailed deer at the border of the us states of illinois and wisconsin since 2002. transmission of infectious prions between animals and from the environment has resulted in spatial and temporal structure observable in the spatio-temporal patterns of reported cases. case locations of 382 positive cases from 28,954 deer tested between 2002 and 2009 provided insight into the potential risk factors and landscape features associated with transmi ... | 2013 | 24258897 |
| county-level surveillance of white-tailed deer infestation by ixodes scapularis and dermacentor albipictus (acari: ixodidae) along the illinois river. | from 1998 to 2003, 4,935 hunter-killed deer in northern and central illinois were examined for ticks; 4,066 blacklegged ticks, ixodes scapularis say, and 6,530 winter ticks, dermacentor albipictus (packard) (acari: ixodidae), were collected. i. scapularis was the predominant tick species in the northern portion of the study area, with a decreasing north-to-south prevalence gradient. in contrast, d. albipictus was more common in the south with a decreasing south-to-north prevalence gradient. comp ... | 2006 | 17017213 |
| high prevalence of antibodies to neospora caninum in white-tailed deer (odocoileus virginianus). | serum samples of 400 white-tailed deer (odocoileus virginianus) from 16 preserves in northeastern illinois were tested for neospora caninum antibodies in the n. caninum agglutination test using mouse-derived n. caninum tachyzoites and mercaptoethanol. antibodies were found in 162 deer with titres of 1:40 (47 deer), 1:80 (32 deer), 1:160 (17 deer), 1:200 (eight deer), 1:400 (19 deer), 1:800 (17 deer) and > or = 1:1600 (22 deer). there were no significant differences in prevalence between age or s ... | 1999 | 10608458 |
| serologic evidence of anaplasma marginale infection in illinois white-tailed deer. | a total of 175 deer and 54 cattle from crab orchard national wildlife refuge in southern illinois were tested for antibody to anaplasma marginale, using the capillary tube agglutination test. a total of 12 (6.9%) deer and 7 (13%) cattle were serologically positive. serologic prevalence in deer increased from 0 at 6 months of age to 14% at 2 1/2 or more years of age. cattle less than approximately 1 year of age were not seropositive. | 1982 | 7174438 |
| ticks on white-tailed deer fawns from southern illinois. | seventy-six white-tailed deer (odocoileus virginianus (zimmermann] fawns captured on crab orchard national wildlife refuge in southern illinois during june-july 1980-1983 were aged and examined for ticks. the prevalence of ticks (amblyomma americanum (linnaeus, 1758) and dermacentor variabilis (say, 1821] was 80%; intensity of infestation ranged from one to 123 ticks per fawn, averaging 21.6. tick intensity correlated poorly with age suggesting that there were other, more important determinants ... | 1984 | 6530716 |
| gastro-intestinal helminths in white-tailed deer (odocoileus virginianus) of illinois. | two deer populations, one in northern illinois the other in southern illinois, were examined by necropsy (n = 44 and 40 respectively) for helminth parasites of the gastro-intestinal tract and abdominal cavity. both herds were parasitized by apteragia odocoilei, haemonchus contortus, gongylonema pulchrum, setaria yehi, trichuris ovis, and moniezia benedeni. nematodirus sp. was found only in deer of northern illinois. ostertagia mossi, capillaria sp., cooperia sp., and oesophagostomum sp. were fou ... | 1979 | 501845 |
| the walk is never random: subtle landscape effects shape gene flow in a continuous white-tailed deer population in the midwestern united states. | one of the pervasive challenges in landscape genetics is detecting gene flow patterns within continuous populations of highly mobile wildlife. understanding population genetic structure within a continuous population can give insights into social structure, movement across the landscape and contact between populations, which influence ecological interactions, reproductive dynamics or pathogen transmission. we investigated the genetic structure of a large population of deer spanning the area of w ... | 2012 | 22882236 |
| evaluation of a wild white-tailed deer population management program for controlling chronic wasting disease in illinois, 2003-2008. | we evaluated population management programs for controlling chronic wasting disease (cwd) in wild white-tailed deer in illinois between november 2002 and march 2008. the intervention consisted of measures of deer removal from three deer population control programs: illinois department of natural resources culling, deer population control permits and nuisance deer removal permits. we included in the analysis a total of 14,650 white-tailed deer cwd test results. these data also included location a ... | 2013 | 23558033 |
| the importance of localized culling in stabilizing chronic wasting disease prevalence in white-tailed deer populations. | strategies to contain the spread of disease often are developed with incomplete knowledge of the possible outcomes but are intended to minimize the risks associated with delaying control. culling of game species by government agencies is one approach to control disease in wild populations but is unpopular with hunters and wildlife enthusiasts, politically unpalatable, and erodes public support for agencies responsible for wildlife management. we addressed the functional differences between hunti ... | 2014 | 24128754 |
| metals in obex and retropharyngeal lymph nodes of illinois white-tailed deer and their variations associated with cwd status. | prion proteins (prp(c)) are cell membrane glycoproteins that can be found in many cell types, but specially in neurons. many studies have suggested prp(c)'s participation in metal transport and cellular protection against stress in the central nervous system (cns). on the other hand prp(sc), the misfolded isoform of prp(c) and the pathogenic agent in transmissible spongiform encephalopathies (tse), has been associated with brain metal dyshomeostasis in prion diseases. thus, changes in metal conc ... | 2015 | 25695915 |
| chronic wasting disease in white-tailed deer: infection, mortality, and implications for heterogeneous transmission. | chronic wasting disease (cwd) is a fatal neurodegenerative disease affecting free-ranging and captive cervids that now occurs in 24 u.s. states and two canadian provinces. despite the potential threat of cwd to deer populations, little is known about the rates of infection and mortality caused by this disease. we used epidemiological models to estimate the force of infection and disease-associated mortality for white-tailed deer in the wisconsin and illinois cwd outbreaks. models were based on a ... | 2016 | 27870037 |