| vector of trypanosoma copemani identified as ixodes sp. | summarya total of 41 ticks were collected from 15 quokkas on bald island and 2 ticks from a gilbert's potoroo from two peoples bay. three species of ixodid ticks ixodes australiensis, ixodes hirsti and ixodes myrmecobii were identified on the quokkas known to have a high prevalence of trypanosoma copemani. tick faeces from ticks isolated from 8 individual quokkas and a gilbert's potoroo were examined with one identified as positive for trypanosomes. faecal examination revealed trypanosomes simil ... | 2011 | 21518469 |
| a survey of ticks (acari: ixodidae) of companion animals in australia. | ticks are among the most important vectors of pathogens affecting companion animals, and also cause health problems such as tick paralysis, anaemia, dermatitis, and secondary infections. twenty ixodid species have previously been recorded on dogs, cats, and horses in australia, including rhipicephalus sanguineus, ixodes holocyclus and haemaphysalis longicornis, which transmit tick-borne diseases. a survey of hard ticks (acari: ixodidae) was conducted during 2012-2015 to investigate tick species ... | 2016 | 27160149 |
| observation of a novel babesia spp. in eastern grey kangaroos (macropus giganteus) in australia. | the roles and epidemiological features of tick-borne protozoans are not well elicited in wildlife. babesia spp. are documented in many domestic animals, including cattle, horses, pigs, dogs and cats. three cases affecting eastern grey kangaroos are described. the kangaroos exhibited neurological signs, depression and marked anaemia, and microscopic examination of blood smears revealed intraerythrocytic piroplasms. one to seven intraerythrocytic spherical, oval, pyriform and irregularly-shaped pa ... | 2012 | 24533316 |
| bothriocroton concolor (acari: ixodidae) on the kangaroo island kangaroo: a new host-parasite relationship. | in 2006, we examined kangaroo island kangaroos, macropusfuliginosusfuliginosus, for ticks. we collected three tick species: ixodes hirsti hassall, hemaphysalis bancrofti nuttall & warburton, and bothriocroton concolor (neumann). surprisingly, the specimens included eight females and one nymph of b. concolor, which had previously been considered strictly host specific to the echidna (tachyglossus sp.). this is the first record of b. concolor on the kangaroo island kangaroo. | 2007 | 17915525 |
| what attracts larval ixodes hirsti (acari: ixodidae) to their host? | ticks are extremely susceptible to desiccation when not on a host. even though ixodid ticks are capable of surviving extreme conditions, it is in the best interest of the tick to locate a host quickly. the aim of this study was to determine the host stimuli used by larval ixodes hirsti for location of their passerine host. additionally, we recorded the average questing height of larval ticks. we found that i. hirsti larvae were attracted to shade and heat, while they were unresponsive to host od ... | 2009 | 18979119 |
| keys for the morphological identification of the australian paralysis ticks (acari: ixodidae), with scanning electron micrographs. | the australian paralysis ticks (ixodes: sternalixodes) are of considerable medical and veterinary importance within australia. this is because of their ability to cause paralysis but also their capacity to transmit pathogens and induce allergic reactions. the available keys for the identification of the group (ixodes holocyclus neumann, ixodes cornuatus roberts, and ixodes hirsti hassall) are ambiguous and contain errors, making accurate identification of the group difficult. illustrations of va ... | 2017 | 28497302 |
| coevolutionary analyses of the relationships between piroplasmids and their hard tick hosts. | host-parasite coevolution is a key driver of biological diversity. to examine the evolutionary relationships between piroplasmids and their hard tick hosts, we calculated the molecular clock and conducted phylogenetic analyses of both groups. based on our results, we conclude that the divergence time of piroplasmids (∼56 mya) is later than divergence time of their hard tick hosts (∼86 mya). from analyses of the evolution of both piroplasmid and vector lineages and their association, we know that ... | 2013 | 24101988 |
| detection of theileria orientalis genotypes in haemaphysalis longicornis ticks from southern australia. | theileria are blood-borne intracellular protozoal parasites belonging to the phylum apicomplexa. previously considered a benign parasite in australia, outbreaks of clinical disease resulting from theileria orientalis genotypes have been reported in australia since 2006. since this time, outbreaks have become widespread in south-eastern australia, resulting in significant adverse impacts on local dairy and beef industries. this paper provides the first investigation into the possible biological a ... | 2015 | 25889204 |
| climate or host availability: what determines the seasonal abundance of ticks? | ticks can significantly affect the health and fitness of the host. seasonal population dynamics of ticks play a vital role in disease transmission and the shaping of life-history traits of both tick and host. in this study, we examine the seasonal population dynamics of ixodes hirsti in south australia. for 2 years, we measured the prevalence and intensity of i. hirsti on passerines on kangaroo island. ticks were present on birds from april to november and absent from december to march, with a p ... | 2008 | 18587670 |
| phylogenetic analysis of the australasian paralysis ticks and their relatives (ixodidae: ixodes: sternalixodes). | the australasian paralysis ticks and their relatives, ixodes latrielle, subgenus sternalixodes schulze, are some of the most important ticks in the region. however, very little is known about their phylogenetic relationships. the aim of this study was to elucidate the evolutionary relationships of members of the subgenus sternalixodes by undertaking phylogenetic analyses of morphological and molecular datasets. | 2017 | 28253889 |