scholarly journals Особливості структури комплексів фітосеїдних кліщів в рослинних асоціаціях міст

2017 ◽  
Vol 7 (4) ◽  
pp. 179-186
Author(s):  
S L. Grabovska ◽  
I. I. Mykolaiko ◽  
V. P. Mykolaiko
Keyword(s):  
Species Diversity ◽  
Dominant Species ◽  
Common Species ◽  
Mite Species ◽  
Herbaceous Plants ◽  
Species Structure ◽  
Predacious Mites ◽  
Phytoseiid Mites ◽  
Trees And Shrubs ◽  
Subdominant Species

20 species of 10 genera of mites of this family Phytoseiidae were found while studying a species composition on the plants of urban environment Amblyseius andersoni Chant, 1957; Amblyseius rademacheri Dosse, 1958; Neosiulus herbarius Wainstein, 1960; Neoseiulus reductus Wainstein, 1962; Euseius finlandicus, Oudemans, 1915; Kampimodromys aberrans Ouderman, 1930; Dubininellus echinus Wainstein et Arutunjan, 1970; Dubininellus juvenis Wainstein et Arutunjan, 1970; Typhlodromus cotoneastri Wainstein, 1961; Typhlodromus laurae Arutunjan, 1974; Typhloctonus aceri Collyer, 1957; Typhloctonus tiliarum Oudemans, 1930; Paraseiulus incognitus Wainstein et Arutunjan, 1967; Paraseiulus soleiger Ribaga, 1902; Amblydromella (s.str.) caudiglans Scheuten,1959; Amblydromella (s.str.) pirianykae Wainstein, 1972; Amblydromella (s.str.) rhenana Oudemans, 1905; Amblydromella clavata Wainstein, 1972; Amblydromella (Aphanoseius) verrucosa Wainstein, 1972; Galendromus longipilus Nesbitt, 1951. The peculiarities of their spreading in plant associations of Kyiv city, Uman city, Vasylkiv town, Brovary town (Ukraine) which differed from each other by various characteristics (population, area, urbanization degree, etc.) were determined. Total 68 species of plants were examined in the territory of Kyiv city where there were 40 species of trees and shrubs (including 2 types of conifers) and 28 species of herbaceous plants; 16 species of 10 genera of predacious phytoseiid mites were found. 14 species of 8 genera of mites were registered on 25 plant species in the territory of Brovary town (16 species of tree-and-shrub and 9 species of herbaceous plants) in the result of processing of collected materials. 10 species of 7 genera were identified while studying the current state of species diversity of predacious mites of Phytoseiidae family on 26 species of trees and shrubs of green urban plantations within Vasylkiv town. 12 species of 7 genera of Phytoseiidae mites were identified in the result of study of urban plantations in Uman city. Common species at studied areas were the following seven species: A. andersoni, A. rademacheri, E. finlandicus, K. aberrans, T. laurae, T. aceri, T. tiliarum. During the researches the domination index (Di). It was found that spreading of mites was different. Dominant species, subdominant species, subdominant of first order and minor members of species complexes were revealed while analysed the species structure of predacious phytoseiidae mites. E. finlandicus was the dominant in all research plots: Kyiv (Di = 51.63 %), Uman (Di = 60.32 %), Vasylkiv (Di = 15.65 %), Brovary (Di = 33.90 %). K. aberrans (Di = 15.52 %) and E. finlandicus was determined as dominant species n Vasylkiv town. K. aberrans (Di = 2.35 %) and T. aceri (Di = 1.30 %) had the status of subdominant species in research areas. We also have been studied the mite species diversity on the grass and shrubs. We studied the mites on the 93 species of plants where 55 were trees and shrubs (58.9 %) and 38 species were the herbaceous plants (41.1 %).

Spatial-typological structure of blackflies communities (Diptera: Simuliidae) of the River Tisa basin within of the Ukrainian Carpathians

2019 ◽  
Vol 15 (2) ◽  
pp. 59-70
Author(s):  
A. M. Tepliuk ◽  
K. B. Sukhomlin
Keyword(s):  
Species Diversity ◽  
High Altitude ◽  
River Basin ◽  
Dominant Species ◽  
Common Species ◽  
High Mountain ◽  
Typological Structure ◽  
Subdominant Species

A total of 46 species of blackflies from 2 genera were recorded in the watercourses of the Tisa River basin within Ukrainian Carpathians. In qualitative terms, the genus Simulium Latreille, 1802 predominates, with 42 species in 5 subgenera: Nevermannia Enderlein, 1921 (9 species), Eusimulium Roubaud, 1906 (2 species), Wilhelmia Enderlein, 1921 (4 species), Obuchovia Rubtsov, 1947 (2 species) and Simulium Latreille, 1802 (25 species). The genus Prosimulium Roubaud, 1906 is represented with only 4 species. Moreover, 33 species develop in streams (the index of the species diversity of Simpson (Is) is 0,094), and 32 species (Is – 0,087) of Simuliidae develop in rivers. There are 19 common species for both types of watercourses (the index of similarity of Chekanovsky-Sorensen (I) is 0.37). Only 14 species of blackflies develop in streams, and only 13 species develop in rivers. Two dominant species (S. (s.str.) intermedium, S. (s.str.) trifasciatum) and 4 subdominant species (S. (s.str.) argyreatum, S. (s.str.) ornatum, S. (s.str.) reptans, S. (s.str.) variegatum) form the nucleus of the fauna Simuliidae of the Tisa River basin. The species diversity of blackflies reaches 33 species (Is – 0,075) at watercourses of the low mountain level (at altitudes up to 499 m), is has 38 species (Is – 0,067) at the middle mountain level (500–999 m) and only 24 species (Is – 0,021) at high mountain level (above 1000 m). Only 6 species (S. (Eusimulium) velutinum, S.(Obuchovia) brevifile, S. (s.str.) noelleri, S. (s.str.) rostratum, S. (s.str.) tuberosum and S. (s.str.) voilense) develop in the watercourses of the low mountain level, 5 blackfly species (S. (Nevermannia) codreanui, S. (Wilhelmia) pseudoequinum, S. (s.str.) argenteostriatum, S. (s.str.) paramorsitans and S. (s.str.) vulgare) develop in the watercourses of the middle mountain level and 2 species blackflies (S. (Nevermannia) crenobium and S. (Nevermannia) oligotuberculatum) develop in the watercourses of the high mountain level. There are 16 species of Simuliidae common for this high altitude belts, among them S. (Nevermannia) vernum, S. (s.str.) fontanum, S.(s.str.) intermedium, S.(s.str.) ornatum and S. (s.str.) trifasciatum did not reveal the definite patterns of belonging to the specific altitudes, since their quantity was approximately the same at different heights.

scholarly journals Phytoseiid mites from Basilicata region (Southern Italy): species diversity, redescription of Typhloseiulus arzakanicus Arutunjan and a dichotomic key of the genus Typhloseiulus Chant and McMurtry 1994 (Parasitiformes, Phytoseiidae)

Acarologia ◽  
2017 ◽  
Vol 57 (4) ◽  
pp. 805-821
Author(s):  
Haralabos Tsolakis ◽  
Ernesto Ragusa
Keyword(s):  
Species Diversity ◽  
Plant Species ◽  
Southern Italy ◽  
Common Species ◽  
Cultivated Plants ◽  
Phytoseiid Mites ◽  
Kampimodromus Aberrans ◽  
Euseius Finlandicus ◽  
Basilicata Region ◽  
First Time

A survey of phytoseiid mites was carried out in the Basilicata region (Southern Italy) between 1976 and 2014 on wild and cultivated plants. A total of 38 species belonging to eleven genera and two subgenera were found on 59 plant species. The most common species was Euseius finlandicus (Oudemans) (39%) followed by Typhlodromus (Typhlodromus) exhilaratus Ragusa (32.2%), Kampimodromus aberrans (Oudemans) (27.1%), Typhlodromus (Anthoseius) cryptus (Athias-Henriot) (23.7%). Typhloseiulus arzakanicus (Arutunjan), found for first time in Italy, is redescribed here, while the male of this species is described for the first time. A dichotomic key of the species belonging to the genus Typhloseiulus is also given.

Experimental removal of a dominant species at two levels of soil fertility

1989 ◽  
Vol 67 (12) ◽  
pp. 3470-3477 ◽  
Author(s):  
Jessica Gurevitch ◽  
Robert S. Unnasch
Keyword(s):  
Species Richness ◽  
Species Diversity ◽  
Soil Fertility ◽  
Dominant Species ◽  
Dactylis Glomerata ◽  
Common Species ◽  
Herbaceous Plant ◽  
Old Field ◽  
Steep Decline ◽  
Dactylis Glomerata L

Fertilization of the soil in herbaceous plant communities has been observed to lead to an increase in productivity but a decline in species richness and diversity. We tested the hypothesis that the decline in diversity is due to increased competition from a dominant species by removing the dominant species, Dactylis glomerata L., from an old field community with and without fertilization. Fertilization without the removal of Dactylis resulted in a steep decline in species numbers and in species diversity. The removal of Dactylis when fertilizer was added prevented the decline in species richness. Removal of this dominant species led to an increase in species diversity, an increase in either the frequency or the abundance of almost half of the common species in the system, and an increase in the combined biomass of uncommon species. The response to the removal of Dactylis was greater at higher than at low soil fertility for most but not all variables. Key words: old-field, fertilization, competition, species diversity, community structure, Dactylis glomerata.

scholarly journals Phytoseiid mites on conifers

2010 ◽  
pp. 65-69
Author(s):  
Zsuzsanna Hajdú ◽  
Árpád Szabó ◽  
Béla Pénzes
Keyword(s):  
Species Diversity ◽  
Picea Glauca ◽  
Mite Species ◽  
Phytoseiid Mite ◽  
Phytoseiid Mites ◽  
Amblyseius Andersoni ◽  
Coniferous Trees ◽  
Juniperus Scopulorum ◽  
University Of Budapest

The abundance and species diversity of phytoseiids were studied in the evergreen collection of the Corvinus University of Budapest at Soroksár from March to August 2010. 329 phytoseiid mite specimens were collected from 15 cultivars of coniferous trees belonging to the following 4 genera: Juniperus, Abies, Picea and Pinus. 6 phytoseiid mite species have been identified: Amblyseius andersoni (Koch, 1957), Amblyseius tenuis Westerboer 1963, Anthoseius bakeri (Garman, 1948), Anthoseius involutus Livshitz et Kuznetzov 1972, Typhlodromus baccetti Lombardinii 1960 and Typhlodromus cotoneastri Wainstein 1963. The dominant phytoseiid species were Amblyseius andersoni and Anthoseius involutus.Amblyseius tenuis and Typhlodromus baccettii are new to the Hungarian fauna. Typhlodromus baccettii was found on Juniperus scopulorum 'Silver Star' and 'Moonglow' while Amblyseius tenuis was collected from Picea glauca 'Alberta Globe'.

To the species structure of predatory phytoseiid mites (Parasitiformes, Phytoseiidae) of state reserve “Elanetskyi Step”

2018 ◽  
Vol 14 (1) ◽  
pp. 39-43
Author(s):  
V. Yu. Bondarev
Keyword(s):  
Common Species ◽  
Species Structure ◽  
Phytoseiid Mites ◽  
First Order ◽  
Plant Feeding ◽  
Plant Associations ◽  
The Family ◽  
Different Types ◽  
First Time ◽  
Predatory Phytoseiid Mites

As material for this work the gatherings of the author executed in 2016 year. On 43 species of plants 85 samples in which 249 copies of phytoseiid mites are revealed are taken. For the statistical analysis used an occurrence index (P1, %) and an index of domination of Paliya-Kovnatski (Di). Species structure of predatory phytoseiid mites (Parasitiformes: Phytoseiidae) in plant associations of state reserve "Elanetskyi step" (Mykolaiv region, Ukraine) were studied at the first time. 21 species of 7 genera of the family are detected (A. andersoni, A. herbarius, A. maior, N. marginatus, N. reductus, N. tauricus, E. finlandicus, D. echinus, T. tiliarum, P. intermixtus, P. soleiger, A. caudiglans, A. rapida, A. pirianykae, A. recki, A. verrucosa, A. spectata, T. cotoneastri, T. laurae, T. tiliae). Frequency of occurrence and fidelity to different types of plant communities for each species of mites were determined. Amlydromella (s. str.) recki, the most common species, was with occurrence index 35.3%. The species Amblydromella (s. str.) rapida, Amblydromella (Litoseia) spectata, and Paraseiulus intermixtus were the rare species (one specimen of each species was presented at collections). Amblydromella (s. str.) recki was the dominant in the complex of plant-feeding predatory mites. Three species, A. pirianykae, A. andersoni and E. finlandicus, were the subdominants. Typhlodromus cotoneastri was the subdominant of the first order. The remaining 16 species were the secondary members of the complex.

scholarly journals Changes in acanthocephalan infection of the Antarctic fish Notothenia coriiceps in Admiralty Bay, King George Island, over 29 years

2012 ◽  
Vol 33 (1) ◽  
pp. 99-108 ◽  
Author(s):  
Zdzisław Laskowski ◽  
Małgorzata Korczak-Abshire ◽  
Krzysztof Zdzitowiecki
Keyword(s):  
Dominant Species ◽  
Antarctic Fish ◽  
Common Species ◽  
South Shetland Islands ◽  
King George Island ◽  
Admiralty Bay ◽  
Shetland Islands ◽  
Notothenia Coriiceps ◽  
The Antarctic ◽  
Subdominant Species

Changes in acanthocephalan infection of the Antarctic fishNotothenia coriicepsin Admiralty Bay, King George Island, over 29 yearsA comparison between the levels of infection with Acanthocephala of the fishNotothenia coriicepsin Admiralty Bay (South Shetland Islands, Antarctic) in 1978/79 and 2007/08 is presented. The same eight acanthocephalan species, three echinorhynchids maturing in fish,Aspersentis megarhynchus(dominant species),Metacanthocephalus johnstoni(subdominant species) andM. dalmori(common species), and five polymorphids maturing in mammals and birds,Corynosoma hamanni, C. pseudohamanni(both co-dominant species),C. arctocephaliandC. bullosum(both common species), andC. shackletoni(rare species), were found. Echinorhynchids were more numerous in 2007/08 (mean abundance 46.54 versus 35.35 in 1978/79), whereas polymorphids more numerous in 1978/79 (mean abundance 74.35versus36.40 in 2007/08). The overall results therefore demonstrated that echinorhynchids were more numerous than polymorphids in 2007/08 and the reverse was true in 1978/79. This situation is dependent mainly upon the decreased infections withC. hamanni, C. pseudohamanniandC. bullosum, and to a lesser degree upon the increasing of infections withM. johnstoni.The decrease of the threeCorynosomaspp. is possibly associated with the decreasing of populations of final hosts, seals, on the shore of Admiralty Bay in the vicinity ofArctowskiStation.

Relationship between Species Diversity of Herbaceous Plants in the Shelterbelt and Environment Factors

2011 ◽  
Vol 28 (1) ◽  
pp. 118-125 ◽  
Author(s):  
Jia ZHANG ◽  
Sheng-yu LI ◽  
Zheng-zhong JIN ◽  
Jia-qiang LEI
Keyword(s):  
Species Diversity ◽  
Herbaceous Plants ◽  
Environment Factors

Oil pollution studies of the Solbergstrand mesocosms

1987 ◽  
Vol 316 (1181) ◽  
pp. 641-654 ◽  
Keyword(s):  
Dominant Species ◽  
Oil Pollution ◽  
Benthic Communities ◽  
Ascophyllum Nodosum ◽  
Diesel Oil ◽  
Benthic Macrofauna ◽  
Sediment Chemistry ◽  
Littorina Littorea ◽  
Species Structure ◽  
Laminaria Digitata

Two medium-scale ecosystems (mesocosms) were built on the Oslofjord: one a hard-bottom intertidal system and the other a subtidal soft-sediment system. The hard-bottom mesocosm consists of four basins, two controls and two which were dosed with diesel-oil (129 μg 1 -1 a high oil (HO) dose and 29 μg 1 -1 a low oil (LO) dose). Both oil doses caused high mortality of Mytilus edulis and growth was reduced in the macroalgae Ascophyllum nodosum and Laminaria digitata . Recruitment of Littorina littorea was also affected by oil so that populations declined over time. Subtidal benthic communities have been established in the mesocosm and show variations in sediment chemistry within the range found in the field. Although recruitment of benthic macrofauna is reduced, dominant species and species structure remain closely similar to that in the field over six months. Bioturbation effects studied in the mesocosm have shown the important influence of large, rare species in structuring benthic communities, a finding which would not be possible in nature by diving or by the use ofsubmersibles. Preliminary results from a community taken from 200 m depth and established in the mesocosm suggest that it is now possible to do detailed manipulation experiments on communities simulating the whole continental shelf.

Dominant species can produce a negative relationship between species diversity and ecosystem function

Oikos ◽  
2009 ◽  
Vol 118 (5) ◽  
pp. 723-732 ◽  
Author(s):  
Robert P. Creed ◽  
Robert P. Cherry ◽  
James R. Pflaum ◽  
Chris J. Wood
Keyword(s):  
Species Diversity ◽  
Ecosystem Function ◽  
Dominant Species ◽  
Negative Relationship

scholarly journals Diversity and Community Structure of Oribatid Mites (Acari, Oribatei) at Memorial Complexes of a Megapolis

2013 ◽  
Vol 47 (4) ◽  
pp. 291-297
Author(s):  
L. A. Kolodochka ◽  
O. S. Shevchenko
Keyword(s):  
Community Structure ◽  
Species Diversity ◽  
Species Complex ◽  
Common Species ◽  
Oribatid Mites ◽  
Direct Relation ◽  
City Center ◽  
Degree Of Dominance ◽  
Different Types ◽  
The City

Abstract In different types of substrate (soil, litter, lichens and mosses) collected at three memorial complexes (cemeteries) of Kyiv (Ukraine), 70 species from 57 genera, 34 families of oribatid mites were found. A few eurytopic species capable of tolerance to different types of pollution make up an essential part in each species complex. The species diversity and complexity of oribatid community structure at researched areas increased with distance from the city center. There was no direct relation between the degree of dominance of most common species and the cemetery’s relative remoteness from the center of the city.

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