scholarly journals A comprehensive survey of Rhinonyssid mites (Mesostigmata: Rhinonyssidae) in Northwest Russia: New mite-host associations and prevalence data

2020 ◽  
Vol 8 ◽  
Author(s):  
Manuel De Rojas ◽  
Jorge Doña ◽  
Ivan Dimov

Rhinonyssid mites are permanent parasites of birds that inhabit their respiratory tract. There are around 600 species described worldwide and almost all species of birds are found to have embedded rhinonyssid mites. Despite their presumed relevance, these mites are largely unstudied due to the difficulty in sampling them and, therefore, the majority of mite-host associations and species-prevalence data are unknown. In this study, 179 mite specimens belonging to 27 species and eight genera were identified. Notably, 18 new mite-bird associations were documented for the first time, thus increasing the known host range for these mite species. In addition, mite-host associations found in this study were compared with known associations from these species of birds in the European part of Russia and in Europe. Overall, this study represents the largest survey to date carried out on rhinonyssid mites in Russia and one of the most comprehensive datasets on rhinonyssid host-range.

2018 ◽  
Vol 52 (1) ◽  
pp. 91-100
Author(s):  
E. Yu. Blagoveshchenskaya

The paper provides the results of seven-year study of downy mildew on Skadovsky Zvenigorod Biological Station of Moscow State University (ZBS MSU, Moscow Region). A total of 29 species of Peronosporales (Oomycota) were revealed during the study. An annotated list of species is presented, among them Peronospora anemones is recorded for the first time for Russia, P. chelidonii and P. stachydis are new for the European part of Russia, 8 species are new for the Moscow Region.


2013 ◽  
Vol 47 ◽  
pp. 68-73
Author(s):  
S. V. Volobuev

The corticioid basidiomycete Jaapia ochroleuca (Bres.) Nannf. et J. Erikss. is recorded for the first time in the European Russia from the «Bryansky Les» Nature Reserve (Bryansk Region). The taxonomic position of the species is defined briefly. Its morphological description and data on distribution and ecology are provided. The details of microscopic structure of the collected specimen are illustrated.


2020 ◽  
Vol 6 ◽  
pp. 423-428
Author(s):  
Alexey S. Sazhnev

The species Berosus geminus Reiche & Saulcy, 1856 (Hydrophilidae) is recorded for the first time for European part of Russia. A map with the general distribution of this species is provided.


2020 ◽  
Vol 57 ◽  
pp. 85-100
Author(s):  
Viktoria Tarasova ◽  
Liudmila Konoreva ◽  
Mikhail Zhurbenko ◽  
Tatiana Pystina ◽  
Sergei Chesnokov ◽  
...  

Thirty-one lichen-forming fungi, 12 lichenicolous fungi, and 5 non-lichenized fungi are reported as new for Arkhangelsk Region; 7 species are new for its mainland area. Micarea fallax is reported for the first time for Russia; M. laeta and M. pusilla are new for the European part of Russia. The second finding of Nicropuncta rugulosa for Russia is recorded; microconidia are first observed in this species. The records of ten species which have been included in the new edition of the Red Data Book of the Arkhangelsk Region (2020) are presented. Nephromopsis laureri from the Red Data Book of the Russian Federation (2008) and Leptogium rivulare from the IUCN Red List are reported for the first time for Arkhangelsk Region.


Zootaxa ◽  
2019 ◽  
Vol 4576 (2) ◽  
pp. 347
Author(s):  
ALEXEY V. SHAVRIN ◽  
EDUARD A. KHACHIKOV

New taxonomic, morphological and faunistic data for three Western Palaearctic species of the genus Acrolocha Thomson, 1858 are provided. Acrolocha caucasica Tóth, 1976 is redescribed and illustrated. The lectotype for A. pliginskii Bernhauer, 1912 is designated. Acrolocha amabilis (Heer, 1841) is recorded from Central European part of Russia and Georgia for the first time. 


Author(s):  
A. S. Volynkina ◽  
A. N. Kulichenko

Presented are the results of gene-typing of CCHF virus detected in clinical samples from CHF patients from the Stavropol, Rostov and Astrakhan Regions in 2011. For 28 samples determined are nucleotide sequences of the fragments 115–652 (S segment) and fragments 984–1469 (M segment). Philogenetic analysis of these nucleotide sequences demonstrated that typical strains circulated in 2011 in the regions under surveillance, importation of the new genetic variants of the virus did not take place. CCHF virus variant affiliated to the subgroup “Astrakhan-2” was detected in the clinical samples for the first time and characterized for its genome S- and M-segment fragments.


1969 ◽  
Vol 74 (3) ◽  
pp. 237-251
Author(s):  
Forrest W. Howard ◽  
Edwin Abreu-Rodríguez ◽  
Harold A. Denmark

The coconut mite, Aceria guerreronis Keifer, was collected for the first time in Puerto Rico in 1977. It was reported for the first time in Florida in 1984, although it may have been present in the state since the 1950s. On the basis of damage symptoms observed during 1986-87, the coconut mite was distributed in almost all plantings of coconut in Puerto Rico. The percentage of trees with symptoms was highest on the west coast, where planting density is highest. During the same period, the percentage of coconut palms infested with coconut mites varied from 66 to 98% at different sites on the Florida Keys. On the Florida mainland, the percentage of trees with coconut mite damage was usually less than 7%. At several sites on the Florida mainland revisited in 1988, coconut mites had spread locally. At Playa Tres Hermanos in Añasco, Puerto Rico, and Bahía Honda Key, Florida, where monthly sampling was conducted, coconut mite population fluctuations did not appear to be strongly associated with dry and wet periods or mean daily temperatures. A list of mite species associated with the coconut mite was reported. It included four species reported for the first time in Puerto Rico. In Puerto Rico, Bdella distincta preyed on both coconut mite and Steneotarsonemus furcatus. In Florida, Amblyseius largoensis, Neoseiulos mumai, and N. paspalivorus were observed preying on coconut mites. However, these predators apparently do not significantly affect coconut mite populations. Tarsonemus sp. inflicted damage on the coconut similar to that caused by the coconut mite. Coconut mites beneath tepals of coconuts exposed to —1.5° C for 5.5 hours were not affected adversely by this treatment. Some eggs remained viable after exposure to —3° C up to 5 hours. Coconut mites survived at 5° C for 10 days. Thus, coconut mites are capable of surviving most winters on the Florida mainland.


2020 ◽  
pp. 171-178
Author(s):  
Evgeniy Nikolayevich Sechin ◽  
Oleg Anatolyevich Marakaev ◽  
Gavriil Borisovich Gavrilov

For the first time, the phytosterol state of the underground and aboveground organs of the tuberoid species of the orchid Dactylorhiza maculata (L.) Soó (Orchidaceae), which grows in the natural conditions of the Central European part of Russia, was studied using gas chromatography with a mass spectrometric detector. The plant material contains cycloartenol, cycloeukalenol, campesterol, brassicasterin, β-sitosterol, stigmasterol and ergosterol, which was found in underground organs and belong to mycosymbiont. The ergosterol content in the adventitious roots is five times higher compared to the endings of stem root tuberoids. The phytosterols content of the aboveground organs of D. maculata is more diverse than that of the underground organs. The basic sterol of D. maculata is β-sitosterol (60%), which is present in all organs. Also a high amount was noted for cycloartenol (20%), which is absent in the stem. Cycloeukalenol (7%) was found in inflorescences and leaves, campesterol (2%) in inflorescences, brassicasterin (5%) in the adventitious roots, stigmasterol (5%) in the leaves. Differences in the sterol statuses of organs can be explained by the biochemical characteristics of their tissues and the uneven functional significance of the identified compounds for the growth and development of generative individuals of D. maculata in the budding phase. The results obtained indicate the diversity of phytosterol compounds and their uneven content in various organs of the studied plant object.


2014 ◽  
Vol 48 ◽  
pp. 130-145
Author(s):  
V. M. Kotkova

The paper provides the first data on aphyllophoraceous fungi of the Verkhne-Vashkinskiy Natural Forest (Krasnoborsk District, Arkhangelsk Region). Among 197 species of fungi collected there, Aporpium macroporum, Cerinomyces crustulinus, Clavulinopsis laeticolor, Hydnum umbilicatum, Hymenochaete cruenta, Hyphoderma clavigerum, H. guttuliferum, Junghuhnia fimbriatella, Leucogyrophana sororia, Perenniporia narymica, Rhizochaete filamentosa, Tomentella galzinii, Tomentella terrestris, Trechispora byssinella, Vararia racemosa are new for the region. Steccherinum straminellum (Bres.) Melo is recorded for the first time for the European part of Russia. A total 4 localities of Ganoderma lucidum from Red Data Book of Russian Federation (Krasnaya…, 2008b) and 3 localities of Hericium coralloides from Red Data Book of Arkhangelsk Region (Krasnaya…, 2008a) were found.


Zootaxa ◽  
2017 ◽  
Vol 4282 (1) ◽  
pp. 179 ◽  
Author(s):  
MACIEJ SKORACKI

The fauna of quill mites of the family Syringophilidae (Acariformes: Cheyletoidea) parasitizing birds in Mexico is surveyed. Three new species of the genus Syringophiloidus Kethley are described: S. amazilia sp. nov. from Amazilia candida (Bonaer & Mulsant) (Apodiformes: Trochilidae), S. cincli sp. nov. from Cinclus mexicanus Swainson (Passeriformes: Cinclidae), and S. sporophila sp. nov. from Sporophila torqueola (Bonaparte) (Passeriformes: Thraupidae). Additionally, six quill mite species are found for the first time in Mexico and several new host associations are recorded. The syringophilid fauna presently recorded in Mexico is summarized. 


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