Population asynchrony alone does not explain stability in species‐rich soil animal assemblages: The stabilizing role of forest age on oribatid mite communities

2020 ◽  
Vol 89 (6) ◽  
pp. 1520-1531
Author(s):  
Tancredi Caruso ◽  
Viesturs Melecis ◽  
Ugis Kagainis ◽  
Tom Bolger
2019 ◽  
Vol 27 (4) ◽  
pp. 334-341
Author(s):  
Y. Kulbachko ◽  
O. Didur ◽  
N. Khromykh ◽  
A. Pokhylenko ◽  
T. Lykholat ◽  
...  

The study of morpho-ecological organization of oribatid mite communities (Acariformes, Oribatida) inhabiting forest litter of recultivated areas in steppe zone conditions of Ukraine was performed. The role of the forest and forest floor litter in optimization of the ecological situation on degraded lands was demonstrated. The function of environment creation by oribatids, as primary destructors of dead plant matter, supporting such ecosystem services as soil fertility improvement and nutrients turnover was highlighted. The research was performed within different stratigraphic types of bulk edaphotops in the recultivated plot of “Pavlogradskaya” colliery (Pavlograd, Dnipropetrovsk region, Ukraine) planted with red juniper (Juniperus virginiana L.). Withdrawal and collection of mites was performed with thermoeclector. For determination of the domination structure in the mite communities, the Engelmann scale was used. Adaptive (morpho-ecological) groups of oribatid mites were diagnosed by Krivolutsky. It was established that the number of species of oribatid mites in the forest litter of the studied red juniper plantation varied from 16 to 25. Average density of oribatid mites varied from 4,720 to 25,327 ind./m2. Among such morpho-ecological groups as soil surface inhabitants, small soil pore inhabitants, deep soil forms, floor litter inhabitants and unspecified forms, identified in the coniferous litter, the share of unspecified forms increased from loess-like loam type (21% of total amount) to Calcic Chernozem types with different stratigraphy (41.0%, 70.0% and 70.4% accordingly). Deep soil forms in the forest floor litter of the studied red juniper plots were not identified for any of recultivation types. The obtained results expand our understanding of the role of oribatid mites in the processes of ecological rehabilitation of disturbed ecosystems in the conditions of modern nature management.


Author(s):  
J. A. Lunn

Abstract A description is provided for Mucor racemosus. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On soil, animal droppings, air, stored fruit and vegetables and associated with disorders of man and animals. DISEASE: Plants: Causes a spongy storage rot of various vegetables and fruit, e.g. sweet potatoes, potatoes and citrus, when kept at temperatures below 7°C (Chupp & Sherf, 1960). Man and animals: There are reports from bovine mycotic abortion (Austwick & Venn, 1962), avian pulmonary phycomycosis (RMVM 8, 596) and from skin in disease of guineapig (RMVM 7, 2000). However, doubt is cast on the role of M. racemosus as a pathogenic organism in warm blooded animals as it does not grow at 37°C. GEOGRAPHICAL DISTRIBUTION: World-wide. TRANSMISSION: By air-borne sporangiospores.


2019 ◽  
Vol 45 (4) ◽  
pp. 181-188
Author(s):  
Maka Murvanidze ◽  
Levan Mumladze ◽  
Nino Todria ◽  
Meri Salakaia ◽  
Mark Maraun

2011 ◽  
Vol 48 (2) ◽  
pp. 177-183 ◽  
Author(s):  
Stanisław Seniczak ◽  
Sławomir Kaczmarek ◽  
Anna Seniczak

Oribatid mites (Acari, Oribatida) of bushy patches in steppe vegetation of cape Tarkhankut in Crimea (Ukraine)The density, species number, and age structure of oribatid mites were investigated in bushy patches (elm, hawthorn, hawthorn with rose) in steppe vegetation of cape Tarkhankut (Crimea). In these patches, the density of mites in shrub litter, herbs and moss was higher, but species number was similar like in open steppe vegetation. Hawthorn increased the density distinctly more than hawthorn with rose or bushy elms. In bushy patches, the samples of moss were richer in mites than samples of shrub litter alone or with herbs. Among oribatid mites,Chamobatesc.f.spinosusandTrhypochthonius tectorumwere most abundant, but relatively abundant and common were alsoTectocepheus velatus, Oribatulasp. 1,Achipteria nitens, andBrachychthonius berlesei. In oribatid mite communities, adults dominated, but the age structure of populations greatly depended on vegetation type.


2015 ◽  
Vol 66 (1) ◽  
pp. 41-51 ◽  
Author(s):  
Levan Mumladze ◽  
Maka Murvanidze ◽  
Mark Maraun ◽  
Meri Salakaia

2012 ◽  
Vol 49 (1) ◽  
pp. 19-26 ◽  
Author(s):  
Stanisław Seniczak ◽  
Anna Seniczak

Abstract Oribatid mite communities were investigated in southern Italy in litter under yew, pine and cypress trees. These mites achieved the highest density in yew and cypress litter in a park in the inland town of Caserta, and the lowest density in pine litter at the coast of Capo Vaticano. In these mite communities, only 1-4 species were abundant, so the Shannon index H’ was rather low. The density of oribatid mites, species number, and dominance structure depended greatly on the kind of litter. The most abundant and common was Zygoribatula propinqua, but the highest density in yew litter was achieved by Oribatella superbula. In oribatid mite communities, the juveniles usually dominated, but the age structure of species greatly depended on the kind of litter.


2004 ◽  
Vol 78 (6) ◽  
pp. 1146-1153 ◽  
Author(s):  
Derek W. Kellogg ◽  
Edith L. Taylor

Despite their importance in breaking down lignified tissue today, much is still unknown about the role of mites in the fossil record, especially with reference to the Paleozoic–Mesozoic transition. This study examines permineralized peat from three localities in the central Transantarctic Mountains, ranging in age from Permian to Jurassic, for evidence of diversity and abundance of wood-boring mites. Evidence of mites, in the form of coprolites and tunnels in wood and other tissues, was found at all three localities; the Triassic site included more than 10 times as many wood borings as the Permian site. Our results supplement prior evidence of wood-boring mites during the Mesozoic and thereby fill in the known geologic range of this plant/animal interaction.


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