scholarly journals Arthropods in trophic-cenosis structure of collared flycatcher consortium in conditions of forest ecosystems of North-Eastern Ukraine

2015 ◽  
Vol 23 (1) ◽  
pp. 74-85
Author(s):  
A. B. Chaplygina ◽  
V. N. Gramma ◽  
D. I. Bondarets ◽  
N. O. Savynska
2015 ◽  
Vol 26 (3-4) ◽  
pp. 14-20
Author(s):  
I. N. Kovalenko

The species composition of herb and shrub layer of the major forest ecosystems of the north-eastern Ukraine has been analyzed at the level of vegetation classes, and individual ecological optimum of the main species of herbs and shrubs has been determined in order to predict the dynamics of their populations in the region. Literature data and results of our own studies for the period of 2000–2010 have shown that in accordance with the ecofloristic classification in the region, 6 classes of forest vegetation can be distinguished, such as: Querceto-Fagetea Br.-Bl. (1937), Vaccinio-Piceetea Br.-Bl. (1939), Pulsatillo-Pinetea sylvestris Oberdorfer (1992), Quercetea robori-petreae Br.-Bl. et. Tx. (1963), Salicetea purpureae Moor (1958), Alnetea glutinosae Br. Bl. ex Tx. (1943). The analysis of the general monographs on ecofloristic classification made in the north-eastern Ukraine (Klika, 1955; Matuszkiewicz, 2001; Shelyah-Sosonko, 2002; Grygora, 2005; Solomakha, 2008; Goncharenko, 2009, 2010; Rogova et al., 2005, etc.), provided an opportunity to review the composition of the characteristic species for the six classes of vegetation, registered in the region. Thereby, species, that hardly ever occur in the region or are very rare, have been excluded from the list of characteristic species. Plant species, peculiar to forest communities of the north-eastern Ukraine, have been added. Woody plants and shrubs have been excluded from the analysis. For each species of the three central classes its individual ecological optimum has been estimated considering six factors: 1 – light availability, 2 – temperature, 3 – continentality, 4 – soil moisture, 5 – soil acidity, 6 – soil fertility. The point scale of Ellenberg (Ellenberg, 1952, 1996) with 12 points for soil moisture and 9 points for other environmental regimes has been taken as a basis. Due to the fact that the scale of Ellenberg fails to include all these species, and has a lot of gaps in the assessment of individual regimes, it has been supplemented by the point scale of Landolt (Landolt, 1977), in which the number of species is greater and the assessment of their optimum is more complete. Considering that that in the scale of Landolt all environmental factors are divided into 5 points, transformation of points into 12- or 9-integrated assessment of environmental regimes has been made. The indicated pattern of wide ecological amplitude in characteristic species of higher syntaxonomic units in forest vegetation is useful adaptive trait from the phytocoenogenesis point of view. If there is any change in the general soil-climatic conditions, forest phytocoenoses retain their integrity due to the change in their great number and even the floristic composition in the lower tiers. Grouping of classes Querceto-Fagetea Br.-Bl. (1937), Vaccinio-Piceetea Br.-Bl. (1939) and Pulsatillo-Pinetea Sylvestris Oberdorfer (1992) play the leading role in the formation of forest ecosystems in the north- eastern Ukraine. Plant species, peculiar to these classes and being part of herb and shrub layer, provide wide ecological amplitudes, covering at least 3–5-point scales of the main environmental factors. Global warming may result in significant changes in the composition and structure of plant populations that form herb and shrub layer of forest phytocenoses of vegetation classes, peculiar to the north-eastern Ukraine.


2009 ◽  
Vol 54 (1) ◽  
pp. 99-111 ◽  
Author(s):  
Zdeněk Bauer ◽  
Miroslav Trnka ◽  
Jana Bauerová ◽  
Martin Možný ◽  
Petr Štěpánek ◽  
...  

2020 ◽  
Vol 28 (1) ◽  
pp. 92-97 ◽  
Author(s):  
A. B. Chaplygina ◽  
O. Y. Pakhomov ◽  
H. A. Yevtushenko ◽  
V. V. Brygadyrenko

The сhaffinch (Fringilla coelebs Linnaeus, 1758; Passeriformes, Fringillidae) is one of the most colourful forest species of birds living in Europe, West Asia and North Africa. The diet of this species was studied as a contribution to the conservation of the population of this species in transformed forests of the north-eastern part of Ukraine. Four forest ecosystems were studied: three model sites in oak forests, transformed under intensive recreation pressure, and one model site in a pine-oak forest. A total of 39 invertebrate taxa, dominated by Insecta (93.0%) were found. The orders Coleoptera (32.6%) and Lepidoptera (63.5%) prevailed in the diet of finch nestlings, the highest number of taxa (52.3–76.2%) was represented by phytophages. The phytophagous species also constituted the majority of the consumed prey items (44.0–55.6%). Environmental conditions provided an important effect on the diet structure. The most favourable foraging conditions for the species were found in protected natural areas. According to the analysis, the finch foraging efficiency was similar in all the studied sites. The highest biodiversity indices were found in a protected area of Homilshanski Forests National Nature Park. Results of the research have indicated the crucial role of Fringilla coelebs in the population management of potentially dangerous agricultural pests.


2019 ◽  
Vol 14 (2) ◽  
pp. 172-179
Author(s):  
S. V. Volobuev ◽  
Yu. Yu. Ivanushenko ◽  
A. B. Ismailov

Aim. To obtain new data on the species diversity and ecological characteristics of the Tomentella fungi growing in the North‐Eastern Caucasus.Materials and methods. Sampling of research material was performed in October, 2018 during a route survey of forest ecosystems in the vicinity of Delichoban, the Derbent district, and across the territory of the Upper Gunib natural park, the Gunib district, in the Republic of Dagestan. Identification of the collected material was carried out by light microscopy in the Laboratory of Systematics and Geography of Fungi, V.L. Komarov Botanical Institute of the Russian Academy of Sciences.Results. 3 Tomentella species, which are new for the Republic of Dagestan, have been identified, including T. bryophila, T. ellisii and T. fibrosa. All the discovered species are given with a brief morphological description, details of localities and comments on the current taxonomic position.Conclusion. The Tomentella Pers. ex Pat. s. l. genus is currently represented by 12 species in the territory of the Republic of Dagestan: Tomentella bryophila, T. cinerascens, T. crinalis, T. ellisii, T. ferruginea, T. fibrosa, T. lateritia, T. pilosa, T. punicea, T. stuposa , T. subtestacea and T. umbrinospora. All these species are found across a wide range of altitudinal gradient. Further mycological studies, including those using the molecular and genetic approach, are needed to reveal species new for the region and to expand the understanding of the spatial, ecological and trophic structure of its mycobiota. 


2019 ◽  
Vol 27 (1) ◽  
pp. 51-55
Author(s):  
A. B. Chaplygina ◽  
O. Y. Pakhomov ◽  
V. V. Brygadyrenko

The diet spectrum of the song thrush (Turdus philomelos Brehm, 1831; Passeriformes, Turdidae) was studied with the aim of supporting the population of the species in transformed forests of North-Eastern Ukraine. Four forest ecosystems were surveyed: three model sites in oak woodlands with different stages of recreational digression, and the fourth model site in a pine-oak forest. A total of 45 invertebrate taxa with the dominance of Insecta (64.6%, n = 1321), Oligochaеta (16.7%), and Gastropoda (12.0%) were revealed in the diet of the song thrush. At the level of orders, Lepidoptera (66.2%) was dominant. In the qualitative structure of the song thrush nestling diet, the highest number of taxa (40.5–59.1%) was represented by phytophages. Phytophagous species also comprised the majority of the consumed prey items (44.7–80.3%). Environmental conditions are an important factor, affecting the diet composition of birds. The most favourable foraging conditions for the thrushes were revealed in natural protected areas. The analysis has shown a fairly even foraging efficiency of the thrushes in all the studied sites. The highest biodiversity indices were found in a protected area of the National Nature Park “Homilshanski Forests”. The results of the research indicate an important role of T. philomelos in the population management of potentially dangerous agricultural pests.


2020 ◽  
Vol 39 (4) ◽  
pp. 333-342
Author(s):  
Anzhela Chaplygina ◽  
Oleksandr Pakhomov

AbstractThe blackbird (Turdus merula Linnaeus, 1758; Passeriformes, Turdidae) diet was studied to contribute to the conservation of the species population in transformed forests of the north-eastern part of Ukraine. Four forest ecosystems were studied: 3 model sites in the oak forests, transformed under intensive recreation pressure, and 1 model site in a pine-oak forest. A total of 44 invertebrate taxa, dominated by Insecta (78.1%, n = 1075), were found. The order Lepidoptera (63.5%) prevailed. In the diet of blackbird nestlings, the highest number of taxa (37.1–52.2%) was represented by phytophages. The phytophagous species also constituted the majority of the consumed prey items (58.8–72.0%). Environmental conditions provided an important effect on the diet structure. The most favourable foraging conditions for the species were found in protected natural areas. According to the analysis, the blackbird foraging efficiency was similar in all the studied sites. The highest biodiversity indices were found in a protected area of Homilshanski Forests National Nature Park. Results of the research have indicated a crucial role of T. merula in the population management of potentially dangerous agricultural pests.


2016 ◽  
pp. 13-18
Author(s):  
I. Kovalenko

The species composition of grass and subshrub layer of basic forest phytocenoses in the north-eastern part of Ukraine is analyzed. Six classes of forest vegetation are identified according to the ecological-floristic classification in the studied region. A revision of plant species characteristics is made for them. It is found that typical plants of grass and subshrub layer are characterized by broad ecological amplitudes with respect to the main environmental factors (temperature, humidity, continentality). On the basis of data on individual ecological optimum of plant, one can expect the growth in the share of hydrophilic and thermophilic species along with the corresponding decrease in xerophilous and boreal plant species in grass and subshrub layer of forest ecosystems in the north-eastern part of Ukraine.


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