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D. Haag-wackernagel – One of the best experts on this subject based on the ideXlab platform.

  • Host finding of the pigeon tick Argas reflexus.
    Medical and veterinary entomology, 2016
    Co-Authors: B. Boxler, Peter Odermatt, D. Haag-wackernagel

    Abstract:

    The medically and veterinary important feral pigeon tick Argas reflexus (Ixodida: Argasidae) Fabricius usually feeds on pigeons, but if its natural hosts are not available, it also enters dwellings to bite humans that can possibly react with severe allergic reactions. Argas reflexus is ecologically extremely successful as a result of some outstanding morphological, physiological, and ethological features. Yet, it is still unknown how the pigeon tick finds its hosts. Here, different host stimuli such as living nestlings as well as begging calls, body heat, smell, host breath and tick faeces, were tested under controlled laboratory conditions. Of all stimuli tested, only heat played a role in host-finding. The heat stimulus was then tested under natural conditions within a pigeon loft. The results showed that A. reflexus is able to find a host over short distances of only a few centimetres. Furthermore, it finds its host by random movements and recognizes a host only right before direct contact is made. The findings are useful for the control of A. reflexus in infested apartments, both to diagnose an infestation and to perform a success monitoring after disinfestation.

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B. Boxler – One of the best experts on this subject based on the ideXlab platform.

  • Host finding of the pigeon tick Argas reflexus.
    Medical and veterinary entomology, 2016
    Co-Authors: B. Boxler, Peter Odermatt, D. Haag-wackernagel

    Abstract:

    The medically and veterinary important feral pigeon tick Argas reflexus (Ixodida: Argasidae) Fabricius usually feeds on pigeons, but if its natural hosts are not available, it also enters dwellings to bite humans that can possibly react with severe allergic reactions. Argas reflexus is ecologically extremely successful as a result of some outstanding morphological, physiological, and ethological features. Yet, it is still unknown how the pigeon tick finds its hosts. Here, different host stimuli such as living nestlings as well as begging calls, body heat, smell, host breath and tick faeces, were tested under controlled laboratory conditions. Of all stimuli tested, only heat played a role in host-finding. The heat stimulus was then tested under natural conditions within a pigeon loft. The results showed that A. reflexus is able to find a host over short distances of only a few centimetres. Furthermore, it finds its host by random movements and recognizes a host only right before direct contact is made. The findings are useful for the control of A. reflexus in infested apartments, both to diagnose an infestation and to perform a success monitoring after disinfestation.

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T. N. Petney – One of the best experts on this subject based on the ideXlab platform.

  • Argas transgariepinus white 1846 figs 10 and 11
    , 2017
    Co-Authors: T. N. Petney, Miriam Pfaffle, Agustin Estradapena

    Abstract:

    Only limited information is available on this species. Other than some records used in its original description, only a few data on its distribution are available. It is an Argasid which has some peculiar morphological features, as described by Hoogstraal (1957). The larva has peritremes, a kind of elongated structure on the lateral and ventral sides of the idiosome, which are related to air exchange. These are most similar to those found in predatory and free-living mesostigmatid mites. This unusual feature, plus others found in the adult stage, provided enough background to create the subgenus SecretArgas.

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  • Argas vespertilionis latreille 1796 figs 8 and 9
    , 2017
    Co-Authors: T. N. Petney, T G T Jaenson, Miriam Pfaffle

    Abstract:

    Hoogstraal (1958) and Filippova (1966) provide detailed descriptions of the morphology of the different stages of A. vespertilionis.

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  • Argas reflexus fabricius 1794 figs 4 and 5
    , 2017
    Co-Authors: M P Pfaffle, T. N. Petney

    Abstract:

    The life cycle of A. reflexus comprises eggs, larvae, two to four nymphal stages and the adults. Laboratory studies showed that the number of nymphal instars seems to depend on the outside temperature, with cooler temperatures leading to fewer instars. The life cycle might be as long as 3–11 years in Central Europe. Hosts are predominantly domestic pigeons (Columba livia domestica). Other hosts include rock pigeons (C. livia), turtle doves (Streptopelia turtur), swifts, swallows, owls, crows, several passerine birds and chickens.

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