| [interrelatio of acari ixodidae and hosts of edentata of the serra da canastra, minas gerais, brazil]. | we received for examination a small colection of ticks captured in the national park of the serra da canastra (mg), between 1979 and 1980. the authors demonstrated the existence of a broad co-accomodation of amblyomma pseudoconcolor on edentata of the family dasypodidae, being dasypodini the tribe more adjusted to this infestation. in conformity to the figs 1 and 2, dasypodini are probably the real hosts of a. pseudoconcolor and also the oldest hosts. for the first time, a. pseudoconcolor is als ... | 1989 | 2319951 |
| ticks (acari: ixodidae) associated with wild animals in the pantanal region of brazil. | this paper describes the identification of ticks from wild animals of the pantanal region in brazil as part of a comprehensive study about established and emerging tick-host relationships and related pathological aspects. eighty-one animals were captured (representing 13 species, six orders), and ticks were found on 63 (78%). tick species identified included boophilus microplus (canestrini), amblyomma cajennense (f.), amblyomma parvum aragão, amblyomma pseudoconcolor aragão, amblyomma scalpturat ... | 2000 | 11126563 |
| hosts and distribution of amblyomma auricularium (conil 1878) and amblyomma pseudoconcolor aragão, 1908 (acari: ixodidae). | collections of amblyomma auricularium (conil 1878) and a. pseudoconcolor aragão, 1908 are discussed in relation to distribution and hosts. three tick collections (two from argentina and a third from the usa) house a total of 574 a. auricularium (307 males, 162 females, 73 nymphs and 32 larvae) and 179 a. pseudoconcolor (96 males, 74 females, 4 nymphs and 5 larvae). apart from an adult a. pseudoconcolor found on a bird, nothura maculosa temminck, 1815, all ticks were found on mammals. the great m ... | 2003 | 14580065 |
| successful infestation by amblyomma pseudoconcolor and a. cooperi (acari: ixodidae) on horses. | the host relationships for most species of the genus amblyomma are poorly known in brazil. the ability of a. pseudoconcolor and a. cooperi to successfully feed on horses was investigated during ongoing research on the life cycle of these two species, which are primarily associated with wildlife. results of these experiments suggest that horses are potential hosts for the adult stages of both species. | 2004 | 15604498 |
| comments on controversial tick (acari: ixodida) species names and species described or resurrected from 2003 to 2008. | there are numerous discrepancies in recent published lists of the ticks of the world. here we review the controversial names, presenting evidence for or against their validity and excluding some altogether. we also address spelling errors and present a list of 17 species described or resurrected during the years 2003-2008. we consider the following 35 tick species names to be invalid: argas fischeri audouin, 1826, ornithodoros boliviensis kohls and clifford, 1964, ornithodoros steini (schulze, 1 ... | 2009 | 19169832 |
| detection of "candidatus rickettsia sp. strain argentina"and rickettsia bellii in amblyomma ticks (acari: ixodidae) from northern argentina. | ixodid ticks were collected from vegetation and from humans, wild and domestic mammals in a rural area in the semi-arid argentine chaco in late spring 2006 to evaluate their potential role as vectors of spotted fever group (sfg) rickettsiae. a total of 233 adult ticks, identified as amblyomma parvum, amblyomma tigrinum and amblyomma pseudoconcolor, was examined for rickettsia spp. we identified an sfg rickettsia of unknown pathogenicity, "candidatus rickettsia sp. strain argentina", in a. parvum ... | 2010 | 20186466 |
| isolation of rickettsia parkeri and identification of a novel spotted fever group rickettsia sp. from gulf coast ticks (amblyomma maculatum) in the united states. | until recently, amblyomma maculatum (the gulf coast tick) had garnered little attention compared to other species of human-biting ticks in the united states. a. maculatum is now recognized as the principal vector of rickettsia parkeri, a pathogenic spotted fever group rickettsia (sfgr) that causes an eschar-associated illness in humans that resembles rocky mountain spotted fever. a novel sfgr, distinct from other recognized rickettsia spp., has also been detected recently in a. maculatum specime ... | 2010 | 20208020 |
| vector potential and population dynamics for amblyomma inornatum. | we studied the natural life cycle of amblyomma inornatum and its vector potential in south texas. this tick is distributed throughout south texas and most of central america. a. inornatum represented 1.91% of the ticks collected by carbon dioxide traps during a study of free-living ticks in the tamaulipan biotic province in south texas. the life cycle of a. inornatum in south texas showed a clear seasonal pattern consistent with one generation per year. nymphs emerged in the spring with a peak i ... | 2015 | 25881916 |
| update on tick-borne rickettsioses around the world: a geographic approach. | tick-borne rickettsioses are caused by obligate intracellular bacteria belonging to the spotted fever group of the genus rickettsia. these zoonoses are among the oldest known vector-borne diseases. however, in the past 25 years, the scope and importance of the recognized tick-associated rickettsial pathogens have increased dramatically, making this complex of diseases an ideal paradigm for the understanding of emerging and reemerging infections. several species of tick-borne rickettsiae that wer ... | 0 | 24092850 |
| candidatus rickettsia andeanae, a spotted fever group agent infecting amblyomma parvum ticks in two brazilian biomes. | adult ticks of the species amblyomma parvum were collected from the vegetation in the pantanal biome (state of mato grosso do sul) and from horses in the cerrado biome (state of piauí) in brazil. the ticks were individually tested for rickettsial infection via polymerase chain reaction (pcr) targeting three rickettsial genes, glta, ompa and ompb. overall, 63.5% (40/63) and 66.7% (2/3) of a. parvum ticks from pantanal and cerrado, respectively, contained rickettsial dna, which were all confirmed ... | 0 | 24714968 |