Diversity and Ecology of the Acari

A special issue of Diversity (ISSN 1424-2818). This special issue belongs to the section "Animal Diversity".

Deadline for manuscript submissions: 31 December 2024 | Viewed by 2878

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Department of General Zoology, Faculty of Biology, Adam Mickiewicz University, 61-614 Poznań, Poland
Interests: acarology; bioindicators; ecology; nature conservation; Uropodina mites; zoogeography
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Special Issue Information

Dear Colleagues,

“Diversity” is a term that can aptly describe mites (Acari). This diversity has different dimensions. Firstly, ~63,000 mite species have already been described. However, based on the estimate number of 1,000,000 species globally, the number of known species is only a small fraction of the real diversity of these arthropods. It is supposed that the tropics are hotspots with a still unknown and extraordinary diversity of mites. This is confirmed by the fact that each year new species, genera and families are described from these regions. However, other areas of the world have also been insufficiently examined in this regard.

These little arthropods have already colonized almost all types of habitats. They can be found at any latitude, both in terrestrial and aquatic environments such as lakes, rivers, seas and oceans. As a result, they are also characterized by uniquely high morphological diversity, and different adaptation capabilities and life history strategies. Mites occur commonly in soil and humus, where they are the most numerous components of mesofauna and play a pivotal role in the process of humification. Many mite species are closely associated with other animals and plants, both as commensals and parasites, with which they form various close evolutionary correlations. Both free-living mites and those that are parasites are important elements of many ecosystems.

Mites have been the major research focus of many acarologists for a very long time. However, our knowledge about this group of organisms, regarding both their ecology and geographical distribution, is still obscure and fragmentary. The extent of our knowledge about mites varies between taxa, and the best-known species come from groups of high economic and health importance, such as parasites and pests. In the case of free-living mites, many species have been described on the basis of specimens from only one location, which may suggest their high endemism or the sparce occurrence of the species. On the other hand, the geographical range of occurrence of parasite mite species is directly dependent on the range of occurrence of the host organism. In such cases, the gradual extinction of the host species is a significant factor, which, in turn, often results in the extinction of the accompanying fauna, including parasitic mites. This phenomenon, in addition to the degradation of habitats, also leads to the loss of mite biodiversity.

This Special Issue, entitled “Diversity and Ecology of the Acari”, will present a brief review of the recent research in the field of acarology. We invite both original research and review papers that address the current research problems, as well as those that indicate research trends for the future.

Dr. Agnieszka Napierała
Guest Editor

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Published Papers (3 papers)

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Research

8 pages, 1269 KiB  
Communication
Is Chorioptes texanus to Displace Chorioptes bovis? Notes on the Mites Causing Bovine Chorioptic Mange in Central Europe
by Steffen Rehbein and Martin Visser
Diversity 2024, 16(4), 199; https://doi.org/10.3390/d16040199 - 26 Mar 2024
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Abstract
Chorioptic mange is the most common type of bovine mange in central Europe, affecting mainly housed dairy cattle. Until 1976, when Chorioptes texanus were described for the first time from mangy cattle in Brazil, bovine chorioptic mange was thought to be caused only [...] Read more.
Chorioptic mange is the most common type of bovine mange in central Europe, affecting mainly housed dairy cattle. Until 1976, when Chorioptes texanus were described for the first time from mangy cattle in Brazil, bovine chorioptic mange was thought to be caused only by C. bovis mites. In Europe, C. texanus parasitism in cattle was for the first time reported in Germany in 1998. Following the repeated diagnosis of C. texanus mites in skin scrapings from local cattle in recent years, scrapings from cattle that were clinically suspicious for chorioptic mange were requested and provided during the years from 2019 to 2022 from Austria, France, Germany, and Switzerland (from 6, 17, 28, and 7 farms, respectively) and from dairy cows of 1 farm in Canada. Mites were isolated from the scrapings, cleared, and microscopically identified based on their morphology. Examination of scrapings revealed the presence of C. texanus in the cattle from 2 farms in Austria, 13 farms in France, 7 farms in Germany, 1 farm in Switzerland, and in the specimens from Canada. Chorioptes bovis mites were recovered only in scrapings from 5 farms in Germany and Psoroptes ovis mites in scrapings of cattle from 2 farms in France. The scrapings did not reveal co-infestations of C. bovis and C. texanus or of Chorioptes species and P. ovis. The records of C. texanus from Austria, France, Switzerland, and Canada constitute the first descriptions of this mite species in these countries. Although this investigation was based on an opportunistic collection of the material and was of small extent, the results suggest a widespread occurrence of C. texanus in central Europe and may emphasize the need for studies to closely investigate the nature of the causative agents of chorioptic mange in cattle and other hosts. Full article
(This article belongs to the Special Issue Diversity and Ecology of the Acari)
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11 pages, 935 KiB  
Article
Type of Material, Not Tree Hole Characteristics Shapes Uropodina Mites’ Species Composition in Excavated Tree Holes
by Grzegorz Hebda and Jerzy Błoszyk
Diversity 2024, 16(2), 114; https://doi.org/10.3390/d16020114 - 09 Feb 2024
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Abstract
Uropodina mites are organisms regularly found in the breeding sites of vertebrates. However, studies devoted to the nest dwellers of hole-nesting birds have been performed nearly exclusively in artificial places, i.e., nest boxes. Here, we describe an assemblage of mites from the Uropodina [...] Read more.
Uropodina mites are organisms regularly found in the breeding sites of vertebrates. However, studies devoted to the nest dwellers of hole-nesting birds have been performed nearly exclusively in artificial places, i.e., nest boxes. Here, we describe an assemblage of mites from the Uropodina group living in excavated tree holes. We performed this study in western Poland, sampling material from 49 tree holes excavated by great spotted and black woodpeckers. We divided the material extracted from the tree holes into three categories: wood debris, remnants of bird nests, and remnants of insects. In total, we found 12 species from the Uropodina group. The two most numerous species, Leiodinychus orbicularis and Chiropturopoda nidiphila, constituted ca. 93% of the assemblage. Two other species, Apionoseius infirmus and Uroobovella obovata, were also relatively frequent. Among the assessed factors (woodpecker species, tree hole characteristics, and type of material), only the presence of insect remains, predominantly bat guano, affected species diversity and mite abundance the most. Our study is the first to describe an assemblage of Uropodina species in excavated tree holes and discover two extremely rare mite species, Ch. nidiphila and Nanteria banatica, related to the presence of bat guano in these cavities. Full article
(This article belongs to the Special Issue Diversity and Ecology of the Acari)
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15 pages, 2571 KiB  
Article
Diversity of Quill Mites of the Family Syringophilidae (Acariformes: Prostigmata) Parasitizing Starlings of the Genus Lamprotornis (Passeriformes: Sturnidae)
by Maciej Skoracki, Milena Patan, Markus Unsoeld, Martin Hromada, Zbigniew Kwieciński and Iva Marcisova
Diversity 2024, 16(1), 51; https://doi.org/10.3390/d16010051 - 13 Jan 2024
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Abstract
Quill mites of the family Syringophilidae (Acariformes: Prostigmata) parasitizing starlings of the genus Lamprotornis Temminck (Aves: Passeriformes: Sturnidae) from the sub-Saharan region are comprehensively studied for the first time. Among them, two new species are described: (1) Syringophiloidus soponai Skoracki, Patan and Unsoeld [...] Read more.
Quill mites of the family Syringophilidae (Acariformes: Prostigmata) parasitizing starlings of the genus Lamprotornis Temminck (Aves: Passeriformes: Sturnidae) from the sub-Saharan region are comprehensively studied for the first time. Among them, two new species are described: (1) Syringophiloidus soponai Skoracki, Patan and Unsoeld sp. n., collected from four host species—Lamprotornis chalybaeus (Hemprich et Ehrenberg) (type host) in Kenya, Tanzania, and Ethiopia; L. superbus (Rüppell) in Kenya and Tanzania; L. chloropterus (Swainson) and L. unicolor (Shelley) both in Tanzania; (2) Syringophilopsis parasturni Skoracki, Patan and Unsoeld sp. n. collected from L. pulcher (Müller) and L. chalcurus (Nordmann), both in Senegal. Additionally, two Lamprotornis species, L. chalybaeus in Tanzania and Kenya and L. chloropterus in Kenya, are recorded as the new hosts for Picobia lamprotornis Klimovicova et al., 2004. We also discussed the diversity of the syringophilid mites associated with starlings. Full article
(This article belongs to the Special Issue Diversity and Ecology of the Acari)
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