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    First record and molecular detection of Ornithodoros maritimus Vermeil & Marguet, 1967 in Türkiye with notes on other tick species collected on the Gull Island, Sinop
    (Springer, 2026) Ozsemir, Arif Cemal; Sonmez, Evrim; Zarrabi-Ahrabi, Salar; Gargili-Keles, Aysen; Akyildiz, Gurkan
    Ticks play an important role in the ecology of zoonotic diseases, however their diversity and host associations in insular ecosystems remain insufficiently documented in T & uuml;rkiye. We investigated tick occurrence on yellow-legged Gulls (Larus michahellis) and within their nesting environment on Gull Island (Sinop, T & uuml;rkiye) between March and June 2025. A total of 574 gull chicks and 833 nests were examined, yielding eight tick specimens. Morphological examination and molecular analyses revealed three noteworthy observations: (i) the detection of an adult Ixodes ricinus female attached to a yellow-legged gull chick, representing a rare avian host record, (ii) the presence of a questing male Hyalomma marginatum on the island floor, and (iii) the first record of Ornithodoros maritimus in T & uuml;rkiye, confirmed by mitochondrial 16 S rRNA sequencing and phylogenetic analysis. The findings suggest that small insular habitats can be intermittently colonized by tick species of medical relevance, likely through host-mediated dispersal, while also highlighting ecological constraints that may limit long-term population establishment. These observations contribute to the faunistic knowledge of ticks in T & uuml;rkiye and underscore the need for targeted surveillance of seabird-associated soft ticks along coastal ecosystems.