| redescription of the female, description of the male, and several new records of amblyomma parkeri (acari: ixodidae), a south american tick species. | the tick amblyomma parkeri fonseca and aragão was described in 1952, based on female and immature ticks collected in the states of são paulo and santa catarina, brazil. thereafter, there has been no further report of a. parkeri, and the male has remained unknown. herein, we examined ticks collected on porcupines from a locality in the state of são paulo. some of the ticks were identified as amblyomma longirostre (koch, 1844), whereas others as a. parkeri, including male specimens, for which we p ... | 2009 | 19241123 |
| ticks (acari: ixodidae) infesting wild birds in the eastern amazon, northern brazil, with notes on rickettsial infection in ticks. | the aim of the study was to report tick infestations on wild birds in a region of the eastern brazilian amazon and evaluate the rickettsial infection of these ticks. wild birds captured by mist nets were examined for the presence of ticks, which were collected and identified to species by morphology or molecular methods. in addition, part of these ticks was individually tested by polymerase chain reaction targeting portions of the rickettsial genes glta and ompa. among 331 captured birds, repres ... | 2010 | 20140452 |
| 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 |
| host body size and the diversity of tick assemblages on neotropical vertebrates. | identifying the factors that influence the species diversity and distribution of ticks (acari: ixodida) across vertebrate host taxa is of fundamental ecological and medical importance. host body size is considered one of the most important determinants of tick abundance, with larger hosts having higher tick burdens. the species diversity of tick assemblages should also be greater on larger-bodied host species, but empirical studies testing this hypothesis are lacking. here, we evaluate this rela ... | 2016 | 27812506 |
| three-toed sloth as putative reservoir of coxiella burnetii, cayenne, french guiana. | | 0 | 25271976 |
| new tick records from the state of rondônia, western amazon, brazil. | from 2005 to 2012, ticks were collected from different hosts at different localities of the state of rondônia. the following 16 ixodid tick species were identified: ixodes fuscipes, amblyomma auricularium, amblyomma coelebs, amblyomma dubitatum, amblyomma geayi, amblyomma humerale, amblyomma latepunctatum, amblyomma longirostre, amblyomma naponense, amblyomma nodosum, amblyomma oblongoguttatum, amblyomma ovale, amblyomma romitii, amblyomma rotundatum, amblyomma scalpturatum, and amblyomma varium ... | 2014 | 23975565 |
| morphological description of the nymphal stage of amblyomma geayi and new nymphal records of amblyomma parkeri. | the external morphology of the nymph of amblyomma geayi neumann is described by optical and scanning electron microscopy. unfed nymphs were obtained from an engorged a. geayi female, which had been collected on a sloth (bradypus variegatus) from belém municipality, state of pará, northern brazil, and was kept under laboratory conditions. with the present description, we propose a modification of a taxonomic key published in 2010 for the amblyomma nymphs that occur in brazil, through the inclusio ... | 2013 | 23414796 |