{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T19:24:21Z","timestamp":1789586661163,"version":"build-2803163510"},"reference-count":26,"publisher":"Cambridge University Press (CUP)","issue":"1","license":[{"start":{"date-parts":[[2018,6,20]],"date-time":"2018-06-20T00:00:00Z","timestamp":1529452800000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":["cambridge.org"],"crossmark-restriction":true},"short-container-title":["Parasitology"],"published-print":{"date-parts":[[2019,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Rhinonyssids are obligate haematophagous mites that parasitize the nasal cavity of vertebrates, and occur in a wide range of birds worldwide. Two species of nasal mites are known to occur in penguins: <jats:italic>Rhinonyssus sphenisci<\/jats:italic>, which has been recorded from Humboldt and Magellanic penguins (<jats:italic>Spheniscus humboldti<\/jats:italic> and <jats:italic>S. magellanicus<\/jats:italic>, respectively), and <jats:italic>Rhinonyssus schelli<\/jats:italic>, which has been recorded in Ad\u00e9lie and Gentoo penguins (<jats:italic>Pygoscelis adeliae<\/jats:italic> and <jats:italic>P. papua<\/jats:italic>, respectively). We examined the nasal cavity of African penguins (<jats:italic>Spheniscus demersus<\/jats:italic>) that died while under care at a rehabilitation centre (<jats:italic>N<\/jats:italic> = 40) or that were found dead at breeding colonies (<jats:italic>N<\/jats:italic> = 67). Nasal mites were found in the nasal cavity and\/or paranasal of sinuses of 21 penguins, some of which had signs of mild-to-moderate sinusitis. Prevalence was higher in juveniles (29%) and adults (27%) than in chicks (10%). Mean intensity was 5.9 \u00b1 12.9 mites per infected host (range 1\u201360). The mites presented morphological characteristics that were at times consistent with either <jats:italic>R. sphenisci<\/jats:italic> or <jats:italic>R. schelli<\/jats:italic>, and therefore we conservatively classified them as \u2018<jats:italic>R. sphenisci<\/jats:italic> sensu lato\u2019. Our morphometric results raise the question of whether the specific status of <jats:italic>R. schelli<\/jats:italic> is justified.<\/jats:p>","DOI":"10.1017\/s0031182018000999","type":"journal-article","created":{"date-parts":[[2018,6,20]],"date-time":"2018-06-20T02:31:56Z","timestamp":1529461916000},"page":"121-127","update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":9,"title":["Nasal mites (Mesostigmata: Rhinonyssidae) in African penguins (<i>Spheniscus demersus<\/i>)"],"prefix":"10.1017","volume":"146","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2359-4828","authenticated-orcid":false,"given":"Ralph Eric Thijl","family":"Vanstreels","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Heather","family":"Proctor","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Albert","family":"Snyman","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Renata","family":"Hurtado","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katrin","family":"Ludynia","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nola J.","family":"Parsons","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pierre A.","family":"Pistorius","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2018,6,20]]},"reference":[{"key":"S0031182018000999_ref22","first-page":"17","article-title":"Additional records of ectoparasites from Antarctica","volume":"25","author":"Wilson","year":"1971","journal-title":"Pacific Insects Monograph"},{"key":"S0031182018000999_ref20","first-page":"41","volume-title":"Entomology of Antarctica","author":"Wilson","year":"1967"},{"key":"S0031182018000999_ref18","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0110794"},{"key":"S0031182018000999_ref17","doi-asserted-by":"publisher","DOI":"10.1038\/nmeth.2089"},{"key":"S0031182018000999_ref16","first-page":"393","article-title":"Nasal mites of the English sparrow","volume":"4","author":"Porter","year":"1952","journal-title":"Texas Journal of Science"},{"key":"S0031182018000999_ref15","first-page":"1","volume-title":"Keys, Species and Host List, and Bibliography for Nasal Mites of North American Birds (Acarina-Rhinonyssinae, Turbinoptinae, Speleognathinae, and Cytoditidae). 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