Sürdürülebilir Kalkınma Amaçları

• 1

Araştırmacılar(3)

• Doğan, Salih
• Özbek, Hasan Hüseyİn
• Sevsay, Sevgi

• ArticleAçık Erişim2026/r/ebyu/19300
  Species of the genus Stigmaeus (Acariformes: Stigmaeidae) from the Karasu Valley (Türkiye): morphological examination and a taxonomic argument

  Doğan, Salih

  In the present work, morphological characteristics of species of the genus Stigmaeus Koch collected from the Karasu Valley in the Munzur Mountains (Türkiye) were examined. A total of 11 species of the Stigmaeus were identified in this study. Among them, S. dokeri, S. maraghehiensis and S. purpurascens are recorded for the first time from Türkiye. The protonymph and deutonymph stages of S. bifurcus, as well as the larva, protonymph and deutonymph stages of S. dokeri, are described for the first time. Furthermore, morphological variations were observed for the first time in S. dokeri and S. pulumurensis. The names Stigmaeus africanus Soliman & Gomaa, 1986, S. banksi Gomaa & Hassan, 1986, S. triramus Soliman & Gomaa, 1986 and S. zaheri Gomaa & Hassan, 1986 are considered nomina nuda. This study also highlights the importance of maintaining the current concept of the genus Stigmaeus for taxonomic stability. While the available molecular data suggest that some species may form distinct clades, single-locus analyses based on limited data sets are not yet considered sufficient to justify clear divisions at the genus level. Therefore, it has been suggested that a more balanced approach would be to cautiously consider the idea of dividing Stigmaeus into separate genera and to restructure it based on subgenera or natural species groups, in accordance with the concept of Berlese (1910), and the aim is to open this systematic framework for discussion. In this context, the proposal to reinterpret certain taxa such as Ledermuelleriopsis Willmann and Villersia Kuznetsov not as independent genera but as subgenera within Eustigmaeus Berlese has also been opened for discussion within the scope of this unifying approach. In conclusion, this study contributes to the diversity of Stigmaeus in Türkiye with new records, documents different developmental stages and morphological variation, clarifies the nomenclatural status of some species-names, and advocates a taxonomic framework that prioritises subgeneric re-structuring over generic-level splitting within Stigmaeidae systematics.

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• ArticleAçık Erişim2024/r/ebyu/19848
  First Description of Deutonymph Male of Eustigmaeus anauniensis (Canestrini) (Trombidiformes: Stigmaeidae)

  Doğan, Salih; Doğan, Sibel; Uğurlu, Şifanur; Polat, Nisanur

  With more than 130 species, Eustigmaeus Berlese is one of the most diverse genera in the family of Stigmaeidae. The genus has a worldwide distribution and is found in all zoogeographic regions with the exception of Antarctica. The adult female, adult male, deutonymph, protonymph, and larva of Eustigmaeus anauniensis (Canestrini) are known till now, but the immature male stage is unknown. In this study, five deutonymph male specimens of E. anauniensis were found in Türkiye. The description, illustrations of deutonymph males of E. anauniensis, and its measurements of some body parts were made. This is the first record of deutonymph male of E. anauniensis.

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• ArticleAçık Erişim2022/r/ebyu/20638
  Multivariate analysis of the effects of site factors on the distributions of raphignathoid mites (Acari: Raphignathoidea)

  Özkan, Kürşad; Doğan, Salih; Ceylan, Mervenur

  This study was carried out to examine the relationships between the distributions of raphignathoid mite (Acari: Raphignathoidea) species and their temporal and environmental site factors (i.e. season, habitat type, and altitude) in Pülümür Valley and its immediate environs, Turkey. Data was collected from 306 samples from the various locations in the study area. 70 raphignathoid mite species were identified. The most common raphignathoid species, genus, and family are Neognathus terrestris, Eustigmaeus, and Stigmaeidae, respectively. It has been also found that the greatest number of raphignathoid mite specimens has been encountered in autumn, followed by spring, summer, and winter, respectively.Before applying the statistical analysis, rare species (i.e., the species having less than 5% frequency value) were omitted from the data matrix. Thus, the first (original) matrix size was reduced from 70⨉306 to 20⨉242. Elevation is a continuous variable whereas seasons and habitat types are nominal data. Therefore, each of the seasons (winter, spring, summer, and autumn), and each of habitat types [i.e., litter, soil, soil and organic components, mixed material consisting of moss and liken, and the others (manure and ant nest)] were inserted as binary data [present (1), absent (0)] in the data matrix.Canonical Correspondence Analysis (CANOCA) was applied to define the species-site relationships. Findings indicate that Caligonella haddadi, Neognathus terrestris, Cryptognathus lagena, Raphignathus gracilis, and Stigmaeus devlethanensis are significantly associated with moss and lichen habitat whereas litter, grassy and mossy soil are more suitable habitat types for Favognathus amygdalus, F. cucurbita, Raphignathus kuznetzovi, Eustigmaeus dogani, E. pinnatus, E. segnis, Ledermuelleriopsis aminiae, L. ayyildizi, and Storchia robusta. In addition to this, three species Favognathus cucurbita, Eustigmaeus segnis, and Ledermuelleriopsis plumosus are positively and six species Caligonella humilis, Neognathus terrestris, Favognathus amygdalus, Raphignathus gracilis, Raphignathus kuznetzovi and Ledermuelleriopsis aminiae are negatively related to elevation.

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• ArticleAçık Erişim2020/r/ebyu/22161
  Türkiye Akar Faunasının Yeni Bir Üyesi: Molothrognathus bahariensis Ueckermann ve Khanjani (Acari: Caligonellidae)

  Doğan, Salih; Doğan, Sibel

  Türkiye akar faunası için yeni kayıt olan, Molothrognathus bahariensis Ueckermann ve Khanjani (Acari: Caligonellidae)’in, Pülümür Vadisi’nden (Türkiye) alınan yosun örneğinde bulunan iki dişi ve bir deutonimfinin tanımı gözden geçirilmiş ve türün faz-kontrast mikroskobik görüntüleri sunulmuştur.

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• CorrectionYalnız künye2020/r/ebyu/21981
  Correction: Raphignathoidea (Acari: Trombidiformes) of Turkey: A review of progress on the systematics, with an updated checklist

  Doğan, Salih

  A family name was misspelt on pages 133 and 139(Table 2) in Doğan (2019): ‘EUPALOSELLIDAE’should be ‘EUPALOPSELLIDAE’

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• ArticleYalnız künye2020/r/ebyu/21978
  A new species of the genus Stigmaeus Koch (Acari, Stigmaeidae) from Pülümür Valley (Turkey)

  Doğan, Salih; Doğan, Sibel

  Stigmaeus pulumurensis sp. nov. collected in soil and litter samples taken from Pülümür Valley in Tunceli (Turkey), was described as new to the science. In addition, drawings and phase contrast microscopic images of the new species were given. The new species resembles Stigmaeus tokatensis Dönel, Doğan, Sevsay and Bal by the presence of apodemal marking, all dorsal setae except setae f1 and h1-3 on the striated integument and suranal shields entire. However, it differs from the latter by: the absence of one setae on genu IV, the presence of punctuated patterns on the both sides of the prodorsum and the genital shield, and the location on the different shields of aggenital setae.

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• ArticleYalnız künye2020/r/ebyu/21977
  First record of the mite species of Leptus (L.) esmailii (Acari: Erythraeidae) parasitising on sunn pest (Eurygaster integriceps) from Turkey

  Sevsay, Sevgi; Pamuk, Efe

  The larvae of Leptus (L.) esmailii Saboori and Ostovan given as ectoparasitic on sunn pest, Eurygaster integriceps Puton (Hemiptera: Scutelleridae) from Iran were collected from the same species host in Turkey. The larvae were briefly described and compared with the specimens which are previously given from Iran, also light microscope images of important parts of the specimens were presented here. This study is the second record of the genus Leptus from Turkey.

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• ArticleYalnız künye2020/r/ebyu/21971
  A new species of the genus Trombidium (Acari: Trombidioidea) parasitic on a spider species in Turkey

  Elverici, Mert; Sevsay, Sevgi; Buğa, Evren

  Trombidium demirsoyi sp. nov. Sevsay and Buğa is described andillustrated from larvae collected as ectoparasites on Zodarion thoni Nosek, 1905 and off-host from the soil in ÇanakkaleProvince, Turkey. This is the first record of a species of the spider familyZodariidae as a host for an ectoparasitic larva of a Trombidium Fabricius species.

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• ArticleAçık Erişim2020/r/ebyu/21964
  Türkiye’den yeni bir Favognathus (Acariformes: Cryptognathidae) türü ve cinsin diğer üyeleri hakkında bazı taksonomik yorumlar

  Doğan, Salih; Doğan, Sibel

  Bu çalışmada, (1) Türkiye’den Favognathus rosulatus sp. nov. türünün tanımı yapılmıştır. (2) Favognathus dakotaensis türünün Türkiye’den ilk kaydı verilmiştir. (3) Daha önce Cryptognathus cinsine ait olan ve Mısır’dan tanımlananiki türün (Favognathus aegyptiaca comb. nov. ve Favognathus rosetta comb. nov.) Favognathus cinsine dâhil edilmesiuygun görülmüştür. (4) Flechtmann (1971) tarafından verilen Favognathus agapictus ile Chaudhri vd. (1979) tarafındanverilen Favognathus dama isimlerinin Uluslararası Zoolojik İsimlendirme Yasası’na (ICZN – International Code of Zoological Nomenclature) göre taksonomik olarak geçerliliğinin olmadığı belirlenmiştir. Flechtmann (1971) ve Chaudhri vd.(1979), ICZN'ye göre zoolojik isimlendirme amacıyla yayımlanmış sayılmamalıdır ve bu çalışmalarda geçen F. agapictusve F. dama çıplak isimler olarak kabul edilmelidir. (5) Bagheri vd. (2015) tarafından İran’dan kaydedilen Favognathusorbiculatus türünün Favognathus kamili türüne aktarılması uygun görülmüştür.

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• ArticleAçık Erişim2020/r/ebyu/21963
  Türkiye faunası için yeni stigmaeid akarlar (Acariformes: Raphignathoidea: Stigmaeidae)

  Doğan, Salih; Doğan, Sibel

  Pülümür Vadisi’nden (Türkiye) toplanan akarlar içerisinden Stigmaeidae familyasına ait örnekler incelenmiştir.İncelenen örneklerden toplam altı stigmaeid akar türü bu çalışmada değerlendirilmiştir. Bunlardan; Eustigmaeus capitatus Stathakis, Kapaxidi & Papadoulis, Eustigmaeus nahidae Gheblealivand & Bagheri ile Mediolata aegyptiaca (Zaher &Soliman) Türkiye faunası için yeni olarak tespit edilmiştir. Ayrıca Eustigmaeus dogani Khanjani, Fayaz, Mirmoayedi &Ghaedi, Stigmaeus glabrisetus Summers’ın dötonimf evreleri ile Villersia sudetica Willmann’ın larvası ilk defa bu çalışmada tanımlanmıştır. Tespit edilen bu türler Pülümür Vadisi’nden ilk kez kaydedilmiştir. Türlerin ölçümleri yapılarak tanımları toplanan örnekler üzerinden gözden geçirilmiş ve fotoğraflarına yer verilmiştir.

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