Fauna of Oribatid mites (Acari, Oribatida) from the Movile Cave area (Dobrogea, Romania)

The paper discusses results of the investigations performed on the oribatid fauna collected from the Movile Cave area. 35 species, belonging to 25 genera and 17 families have been identified; among them 2 genera and 6 species are new for the Romanian fauna. The taxonomic and zoogeographical spectrum of the fauna was analyzed, as well as the occurrence of the species depending on depth

Redescription of Hemileius suramericanus (Acari, Oribatida, Scheloribatidae) with comments about Neotropical congeneric species

This paper represents the first redescription of Hemileius suramericanus (Hammer, 1958) (Oribatida, Scheloribatidae). Morphological and chaetotactic details are added to original Hammer's description. The species is compared with others Neotropical species of Hemileius and two new synonyms, H. laticlava and H. confundatus sensu Hammer, are proposed.Fil: Fredes, Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología; ArgentinaFil: Martínez, Pablo Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología; Argentin

Oribatid mites of the Balkan Pen­insula (Acari: Oribatida)

A summarizing work on the earlier recorded oribatid mites from the Balkan Peninsula is presented. Several additional new records are also given. Heminothrus targionii (Berlese, 1885) was found in the first time in Serbia and Heminothrus thori (Berlese, 1904) is the first record for Montenegro. The present work lists 727 species from the Balkan Peninsula; 107 species are recorded from Albania, 162 from Bosnia-Herzegovina, 349 from Bulgaria, 156 from Croatia, 246 from Greece, 154 from Macedonia, 84 from Montenegro, 102 from Serbia, 367 from Slovenia, 293 from Romania and 3 from European part of Turkey

Invasion by Exotic Earthworms Alters Litter- and Soil-dwelling Oribatid Mites

Exotic earthworms are drivers of biotic communities in invaded North American forest stands. Here we used ecologically important oribatid mite (Arachnida: Acari) communities, as model organisms to study the responses of litter- and soil-dwelling microarthropod communities to exotic earthworm invasion in a northern temperate forest. Litter- and soil-dwelling mites were sampled in 2008–2009 from forest areas: (1) with no earthworms; (2) those with epigeic and endogeic species, including Lumbricus rubellus Hoffmeister; and (3) those with epigeic, endogeic, and anecic earthworms including L. terrestris L. Species richness and diversity of litter- and soil-dwelling (0–2 cm soil depth) oribatid mites was 1–2 times higher in sites without earthworms than in sites with worms. Similarly, litter-dwelling oribatid mites were between 72 and 1,210 times more abundant in earthworm-free sites than in sites with worms. Among earthworm invaded sites, abundance of litter-dwelling oribatid mites in sites without the anecic L. terrestris was twice as high in May and 28 times higher in October, compared to sites with L. terrestris. Species richness, diversity, and abundance of oribatid mites were greater in litter-layers than in the soil-layers that showed a varied response to earthworm invasion. Species compositions of both litter- and soil-dwelling oribatid mite communities of forests with no earthworms were markedly different from those with earthworms. We conclude that exotic earthworm invasions are associated with significant declines of species diversity, numbers, and compositional shifts in litter- and soil-inhabiting communities. These faunal shifts may contribute to earthworm effects on soil processes and food web dynamics in historically earthworm-free, northern temperate forests

Studies on Moniezia benedeni (Moniez, 1879) and M. expansa (Rudolphi, 1810)

Imperial Users onl

WPŁYW NAWOŻENIA GNOJOWICĄ BYDLĘCĄ NA ROZTOCZE GLEBOWE (ACARI) ŁĄKI TRWAŁEJ W POLSCE

The effect of different doses of cattle liquid manure, with or without the VIT-TRA agent, on the mites of permanent meadow, with species analysis of oribatid mites (Acari, Oribatida) was investigated. Samples were taken from 13 plots, fertilized with cattle liquid manure in doses 40, 60 and 80 m3· ha-1 and VIT-TRA agent. The dose 40 m3· ha-1 increased the abundance of mites, comparing to the control plot, while doses 60 and 80 m3· ha-1 decreased it. The fungicidal agent, with medium and high dose of fertilizer, signifi cantly decreased the density of Oribatida, Gamasida and Actinedida in relation to small dose of fertilizer with this agent. The mites reacted in a similar way to the bactericidal agent, but acting of virocidal agent was indistinct. The Oribatida dominated among the mites, while the Actinedida and Gamasida were less abundant. Among the Oribatida the most abundant were: Parachipteria bella, Liebstadia humerata, Achipteria coleoptrata and Scheloribates laevigatus. The Oribatida preferred the lower part of grasses, and their density distinctly decreased with the soil depth.Zbadano wpływ nawożenia gnojowicą bydlęcą, z oraz bez dodatku środka VIT-TRA, na roztocze glebowe łąki trwałej, z gatunkową analizą mechowców (Acari, Oribatida). Próby do badań pobrano z 13 poletek doświadczalnych, nawożonych gnojowicą bydlęcą w dawkach 40, 60 i 80 m3· ha-1 oraz z dodatkiem preparatu dezynfekującego. Dawka 40 m3· ha-1 zwiększyła liczebność roztoczy, w tym dominujących mechowców w porównaniu z powierzchnią kontrolną, natomiast dawki 60 i 80 m3· ha-1 wpłynęły na nie ograniczająco. Dodatek środka grzybobójczego, przy średniej i wysokiej dawce nawozu, spowodował zmniejszenie liczebności Oribatida, Gamasida i Actinedida względem niskiej dawki nawozu z tym środkiem, co potwierdzono statystycznie. Podobną reakcję wywołał dodatek środka bakteriobójczego, natomiast preparat wirusobójczy działał niewyraźne. Wśród roztoczy dominowały Oribatida, natomiast Actinedida i Gamasida były mniej liczne. Wśród mechowców najliczniejsze były: Parachipteria bella, Liebstadia humerata, Achipteria coleoptrata i Scheloribates laevigatus. Mechowce preferowały dolny poziom traw, a ich zagęszczenie zmniejszało się wraz z głębokością

Oribatid assemblies of tropical high mountains on some points of the “Gondwana-Bridge” – a case study

This work is the first part of a series of studies, which introduces the methodological possibilities of coenological and zoogeographical indication and – following the climate, vegetation and elevation zones – the pattern-describing analysis of the main Oribatid sinusia of the world explored till our days.This current work is a case-study, which displays the comparison of 9 examination sites from 3 different geographical locations. On each location, three vegetation types have been examined: a plain rain-forest, a mossforest and a mountainous paramo. Analyses are based on the hitherto non-published genus-level database and coenological tables of the deceased János Balogh professor. Occurrence of 18 genera is going to be published as new data for the given zoogeographical region