Spinturnix

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Spinturnix
Spinturnix bechsteini.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Mesostigmata
Family: Spinturnicidae
Genus: Spinturnix
von Heyden, 1826 [1]
Synonyms
  • ParaspinturnixRudnick, 1960
  • Pteroptus Dufour, 1832
Spinturnix mite pulled from the wing membrane of a Mexican free-tailed bat Spinturnix Mite.jpg
Spinturnix mite pulled from the wing membrane of a Mexican free-tailed bat

Spinturnix is a genus of mites in the family Spinturnicidae. [2] Spinturnix mites are an ectoparasite found on species of bats. They live exclusively on the wing and tail membranes and are large enough to be seen with the naked eye. Spinturnix mites are a host specific species, meaning they have a few major host species that they prefer, as well as a few less frequently used hosts. [3] In short, these mites will not infect arbitrary bat species. Their selection of host tends to align with the host species that lives closest to their local environment. Spinturnix mites are found strictly on Microchiroptera. [4] These mites are hematophagous, meaning they feed on the blood of their host. They cannot survive without a host for more than a few hours. [5] Therefore, transmission of mites to other hosts must occur by close contact, such as a bat in a roost. [6]

Contents

Spinturnix mites are crab-like in appearance. Males have a shield-shaped plate on their underside and a pointed abdomen, while females have teardrop shaped shields and a rounded abdomen. [7] The adaptive claws of the mite allows it to grip the wing membrane and efficiently keep hold of their host, even when their host is in flight. [8]

Life cycle

Spinturnix reproduce sexually, but have been shown to align their reproductive cycle on that of its host, specifically by infesting newborns, which are a vulnerable host.

In Spinturnix mites, the egg and larva are embryonated and thus an active protonymph is born. The deuteronymph, which is the second stage of the life cycle, actively parasitizes and is similar to an adult mite in size and appearance. [9] It has been demonstrated that Spinturnix mites end their reproduction and metamorphosis in winter, when their host species go into hibernation cycles. The life cycle of these mites is extremely shortened, which contributes to the instinct to preserve the offspring. Spinturnix mites spend their entire life cycle on the host species. [10]

Distribution

Spinturnix mites can be found globally. They have been seen on bat species from North America to Asia to Europe to Africa. [11]

Host preference

Studies have shown that Spinturnix mites are more prevalent on female hosts than male hosts. There is a higher survival rate for the mites when on a female host. However, Spinturnix mites also show preference towards subadult male hosts. Young host bats that are still dependent on their mother also show a high infestation rate. These preferences demonstrate the Spinturnix mite's ability to detect the host that they find to be the most beneficial to their survival. [12]

Detailed image of a spinturnix mite. Parasite mite living on bats (Spinturnix bechsteini) (5021760226).jpg
Detailed image of a spinturnix mite.

Clinical significance

Spinturnix mites have a strong influence on the health and fitness of their host species of bats. These mites have the strongest impact during the maternity period of bat species. It has been demonstrated that pregnant or lactating bats have experienced increased oxygen consumption and weight loss due to Spinturnix infestations. [13] Due to their hematophagous nature, these mites can cause anemia, lethargy, and loss of appetite in bats as well. [14]

Species

These 51 species belong to the genus Spinturnix: [15] [16]

Related Research Articles

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Spinturnicidae is a family of mites in the order Mesostigmata. The mites are highly specialized parasites of wing or tail membrane or bats. Some species infest eyelids and eye canthi. The species of Spinturnicidae are found in bat habitats throughout the world, living all stages of life on bats.

Ancystropus is a genus of mites in the family Spinturnicidae. There are about seven described species in Ancystropus, found in Asia, the Middle East, Africa, and South Pacific islands.

Eyndhovenia is a genus of mites in the family Spinturnicidae. There are at least two described species in Eyndhovenia.

Meristaspis is a genus of mites in the family Spinturnicidae. There are about six described species in Meristaspis, found in Asia, Africa, the Middle East, Australia, and the Pacific islands.

Mesoperiglischrus is a genus of mites in the family Spinturnicidae. There are at least two described species in Mesoperiglischrus, found in the Neotropics.

Paraperiglischrus is a genus of mites in the family Spinturnicidae. There are at least four described species in Paraperiglischrus, found in Asia, Europe, Africa, Australia, and the Pacific Islands.

Periglischrus is a genus of mites in the family Spinturnicidae. There are more than 30 described species in Periglischrus, found in South, Central, and North America, and in Africa.

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References

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  2. David Evans Walter (ed.). "Spinturnicidae Species Listing". Biology Catalog. Texas A&M University . Retrieved September 3, 2010.
  3. Giorgi MS, Arlettaz R, Guillaume F, Nusslé S, Ossola C, Vogel P, Christe P (March 2004). "Causal mechanisms underlying host specificity in bat ectoparasites". Oecologia. 138 (4): 648–54. doi:10.1007/s00442-003-1475-1. PMID   14714175. S2CID   6637966.
  4. Frank R, Kuhn T, Werblow A, Liston A, Kochmann J, Klimpel S (February 2015). "Parasite diversity of European Myotis species with special emphasis on Myotis myotis (Microchiroptera, Vespertilionidae) from a typical nursery roost". Parasites & Vectors. 8 (1): 101. doi: 10.1186/s13071-015-0707-7 . PMC   4336729 . PMID   25880235.
  5. Baulechner D, Becker NI, Encarnação JA (August 2013). "Host specificity in spinturnicid mites: do parasites share a long evolutionary history with their host?". Journal of Zoological Systematics and Evolutionary Research. 51 (3): 203–212. doi: 10.1111/jzs.12021 .
  6. Bruyndonckx N, Dubey S, Christe P (December 2010). "Fortuitous infestation or wide host range? The case of Spinturnicidae and their bat hosts: reply to Guiller and Deunff (2010)". Molecular Phylogenetics and Evolution. 57 (3): 1353–4. doi:10.1016/j.ympev.2010.10.001. PMID   20934522.
  7. Pocora I, Ševčík M, Uhrin M, Bashta AT, Pocora V (2013-03-01). "Morphometric notes and nymphal stages description of mite species from the Spinturnix myoti group (Mesostigmata: Spinturnicidae) from Romania and Ukraine". International Journal of Acarology. 39 (2): 153–159. doi:10.1080/01647954.2012.757251. ISSN   0164-7954. S2CID   84579458.
  8. Czenze ZJ, Broders HG (2011-10-20). "Ectoparasite Community Structure of Two Bats (Myotis lucifugus and M. septentrionalis) from the Maritimes of Canada". Journal of Parasitology Research. 2011: 341535. doi: 10.1155/2011/341535 . PMC   3199115 . PMID   22028951.
  9. Orlova MV, Orlov OL, Kazakov DV, Zhigalin AV (July 2018). "Peculiarities of the Seasonal Biology of Ectoparasites of the Genus Spinturnix von Heyden, 1826 (Mesostigmata: Gamasina: Spinturnicidae) in the Boreal Zone of the Palearctic Region". Biology Bulletin. 45 (4): 359–367. doi:10.1134/S1062359018040118. ISSN   1062-3590. S2CID   254278055.
  10. Christe P, Arlettaz R, Vogel P (May 2000). "Variation in intensity of a parasitic mite (Spinturnix myoti) in relation to the reproductive cycle and immunocompetence of its bat host (Myotis myotis)". Ecology Letters. 3 (3): 207–212. doi:10.1046/j.1461-0248.2000.00142.x. ISSN   1461-023X.
  11. Szubert-Kruszyńska A, Stańczak J, Cieniuch S, Podsiadły E, Postawa T, Michalik J (April 2019). "Bartonella and Rickettsia Infections in Haematophagous Spinturnix myoti Mites (Acari: Mesostigmata) and their Bat Host, Myotis myotis (Yangochiroptera: Vespertilionidae), from Poland". Microbial Ecology. 77 (3): 759–768. doi: 10.1007/s00248-018-1246-5 . PMC   6469609 . PMID   30151669.
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  13. van Schaik J, Kerth G, Bruyndonckx N, Christe P (January 2014). "The effect of host social system on parasite population genetic structure: comparative population genetics of two ectoparasitic mites and their bat hosts". BMC Evolutionary Biology. 14 (1): 18. doi: 10.1186/1471-2148-14-18 . PMC   3925363 . PMID   24479530.
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  15. Beron, Petar, ed. (2020). Acarorum Catalogus VI, Order Mesostigmata. Pensoft. doi: 10.3897/ab.e54206 . ISBN   978-619-248-006-6.
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