scholarly journals Archaic Dialect of Chaffinch, Fringilla coelebs (Passeriformes, Fringillidae), Song in the Lower-Dnipro Area (South Ukraine) and Its Territorial Relations

Zoodiversity ◽  
2021 ◽  
Vol 55 (3) ◽  
pp. 265-276
Author(s):  
E. D. Yablonovska-Grishchenko ◽  
V. N. Grishchenko
Keyword(s):  
Cluster Analysis ◽  
Spatial Structure ◽  
Contact Area ◽  
Intermediate Position ◽  
South Eastern ◽  
Fringilla Coelebs ◽  
Song Dialect ◽  
Song Types ◽  
Southern Ukraine ◽  
Lower Stream

Archaic song dialect of Chaffinch (Fringilla coelebs Linnaeus, 1758) is located in the Lower-Dnipro Area. To describe it, we recorded 11673 songs of 2008 males from 43 localities in Southern Ukraine during 2004–2015. This dialect has compound spatial structure and connects with other dialects forming a well developed contact area with them. Its core was located in old forests of the lower stream of the Dnipro River. It has spread from them to the new forests in their outskirts. The complex is separated at dialect level in the cluster analysis. It includes considerable number of original song types. Their elements and structure demonstrate archaic features similar to those of other southern complexes but more modern than the old Carpathian and Danube dialects. It occupies the intermediate position between them and modern dialects of the Forest and Wood-and-Steppe Ukraine by the structure of song and is similar to the dialect of Crimean Chaffinch and the song complex of South-Eastern Ukraine.

scholarly journals ОПЫТ КЛАССИФИКАЦИИ ОСТРОВНЫХ СИСТЕМ НА ОСНОВЕ ВЫДЕЛЕНИЯ ГНЕЗДОВЫХ БИОТОПОВ

2011 ◽  
Vol 1 (02) ◽  
pp. 35
Author(s):  
А. V. Matsyura ◽  
М. V. Matsyura
Keyword(s):  
Cluster Analysis ◽  
Key Words ◽  
Breeding Birds ◽  
Southern Ukraine

<p>The key islands for the breeding birds within Southern Ukraine were considered. Principal abiotic features that determined the presence and distribution of the breeding waterbirds were discovered. The cluster analysis followed by the classification of the island was performed.</p> <p><em>Key words: islands, waterbirds, abiotic characteristics, cluster analysis</em><em>.</em></p>

scholarly journals Song Repertoire of the Crimean Chaffinch, Fringilla Coelebs (Fringillidae), and Comparative Analysis of the Vocalization Features of F. C. Solomkoi, F. C. Coelebs and F. C. Caucasica Subspecies

2012 ◽  
Vol 46 (6) ◽  
pp. 55-63
Author(s):  
A. N. Tsvelykh ◽  
E. D. Yablonovska-Grishchenko
Keyword(s):  
Comparative Analysis ◽  
Eastern Europe ◽  
Song Repertoire ◽  
Fringilla Coelebs ◽  
Song Types

Abstract Song repertoire of chaffinch F. c. solomkoi subspecies from Crimea was analyzed. We discerned 38 song types in Crimean chaffinches’ repertoire, 27 of them were more frequent. Comparing Crimean chaffinches’ songs with those of nominative subspecies from Eastern Europe showed no common songs. Comparison of individual song elements showed that songs of F. c. solomkoi consisted of 108 elements, of which 18 were distinctive to Crimean birds, 18 were specific to Crimean chaffinches and Carpa-thian F. c. coelebs population while absent in songs of chaffinches from Eastern Europe plains. Comparison of F. c. solomkoi songs with songs of Caucasian subspecies F. c.caucasica revealed no common types of songs. There are certain similarities in song structures between some Crimean chaffinches and hybrid popula-tion of F. c. caucasica and F. c. solomkoi from Northwest Caucasus. Other specifics of vocalization showed drastic differences in rain-call structures of all subspecies and no after-song “kit“ element for Caucasian sub-species

Spatial structure of the macroand meiobenthic communities in homogenous conditions (on the example of the Pechora Sea)

2019 ◽  
Vol 59 (3) ◽  
pp. 405-412
Author(s):  
V. V. Kozlovskiy ◽  
M. V. Chikina ◽  
N. V. Shabalin ◽  
A. B. Basin ◽  
V. O. Mokievskiy ◽  
...  
Keyword(s):  
Grain Size ◽  
Spatial Structure ◽  
Bottom Water ◽  
Barents Sea ◽  
Water Layer ◽  
Bottom Water Layer ◽  
South Eastern ◽  
Leading Role ◽  
Serripes Groenlandicus ◽  
Historic Data

Spatial structure of the macroand meiobenthic communities of the south-eastern Barents Sea (also known as Pechora Sea) was investigated in 2003 during the expedition of the RV «Professor Shtokman». One grid of the stations was used for both benthic size classes. Community dominated by Serripes groenlandicus occupied the most part of the investigated polygon, Astarte borealis dominated the easternmost station. Described communities are in correspondence with historic data. In the meiobenthic communities, nematodes played a leading role, accounting for 86–94% of the total number. Nematode Richtersia inaequalis was dominant on most stations, at the northernmost station the nematodes Cervonema papillatum and Microlaimus affinis dominated. The temperature and the salinity of the near-bottom water layer were homogenous, macroand meiobenthic communities were not influenced by grain size. In contrast to our expectations, communities of the macroand meiobenthos were distributed independently of each other on the mesoscale area (30×11 km).

Chaffinch Song Repertoires and the Beau Geste Hypothesis

Behaviour ◽  
1983 ◽  
Vol 87 (3-4) ◽  
pp. 256-269 ◽  
Author(s):  
S.M. Dawson ◽  
P.F. Jenkins
Keyword(s):  
Song Type ◽  
Equal Frequency ◽  
Repertoire Size ◽  
Fringilla Coelebs ◽  
Song Rate ◽  
Significant Tendency ◽  
Song Types ◽  
Degree Of Similarity ◽  
Song Repertoires

AbstractThe aim of this investigation was to determine to what extent song repertoires and singing behaviour of chaffinches (Fringilla coelebs) evolved as a means by which resident birds deceive intruders into overestimating the density of residents, making the area appear less suitable for settlement. (1) The chaffinches studied did not show a significant tendency to change song posts synchronously any more than would be expected by chance. (2) Approximately 90% of song type/song post changes were asynchronous. (3) Half of the birds did not repeat their song types with equal frequency, nor did they distribute their singing effort evenly over all the song posts. (4) The degree of similarity between song types in the same repertoire and the degree of similarity between song types from different individuals were not found to be significantly different. (5) No correlation between song rate and repertoire size was found, but it was concluded that seasonal biases strongly restricted this facet of the investigation. On the basis of these findings it is concluded that the evolution of repertoires and singing behaviour in chaffinches seems unlikely to have occurred in conformity with the Beau Geste hypothesis.

scholarly journals Czekanowski’s Diagram and Spatial Data Cluster Analysis for Planning Sustainable Development of Rural Areas

2021 ◽  
Vol 13 (20) ◽  
pp. 11404
Author(s):  
Grzegorz Oleniacz
Keyword(s):  
Cluster Analysis ◽  
Sustainable Development ◽  
Spatial Structure ◽  
Spatial Data ◽  
Rural Areas ◽  
Structural Changes ◽  
Agricultural Land ◽  
Land Ownership ◽  
Land Consolidation ◽  
Result Interpretation

Defects in the spatial structure of agricultural land resulting from the common phenomenon of land fragmentation constitute one of the most important factors that contribute to the lack of rational land management. Reconstruction of the spatial structure of rural areas is essential for their sustainable development. The process of land consolidation is a tool that can arrange space and lead to the desired structural changes. It is reasonable to select objects for land consolidation in such a way as to obtain the best possible effect. This article presents an algorithm for grouping areas with the concentration of the external land ownership patchwork with the use of Czekanowski’s method of cluster analysis. The clusters determined this way can be treated as the whole objects subjected to land consolidation, for which the process will bring the greatest benefits in terms of the elimination of the external land ownership patchwork. The described algorithm is relatively simple to use and the graphical final form is easy for the result interpretation. It allows for multi-variant examination of the analyzed phenomenon and can be applied wherever there is access to reliable information from land registry and cadastral and GIS databases that are used to obtain a complete picture of the spatial and ownership structure of the analyzed areas.

scholarly journals The Use of Trajectory Cluster Analysis to Evaluate the Long-Range Transport of Black Carbon Aerosol in the South-Eastern Baltic Region

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Steigvilė Byčenkienė ◽  
Vadimas Dudoitis ◽  
Vidmantas Ulevicius
Keyword(s):  
Cluster Analysis ◽  
Black Carbon ◽  
Strong Impact ◽  
Baltic Region ◽  
The South ◽  
Air Masses ◽  
South Eastern ◽  
Black Carbon Aerosol ◽  
Concentration Weighted Trajectories ◽  
Eastern Baltic

Trajectory cluster analysis and source-receptor models (the potential source contribution function (PSCF), concentration weighted trajectories (CWT), and trajectory source apportionment (TSA)) were applied to investigate the source-receptor relationship for the aerosol black carbon (BC) measured at the coastal site (Preila, 55.55°N, 21.04°E) during 2013. The main sources and paths of advection to the south-eastern Baltic region and its relation to black carbon concentration were identified. The 72 h backward trajectories of air masses arriving at Preila from January to December 2013 were determined and were categorized by clustering them into six clusters. Subsequently, BC levels at Preila associated with each air mass cluster during this period were analyzed. The PSCF and CWT analysis shows that, on high BC concentration days, the air masses commonly originated and passed over southern regions of Europe before arriving at Preila in winter, while a strong impact of wildfires was observed in spring.

scholarly journals Biodiversity of polychaetous annelids from the peninsula of Cap Bon, northeast coast of Tunisia

Zoosymposia ◽  
2009 ◽  
Vol 2 (1) ◽  
pp. 587-600 ◽  
Author(s):  
SANA ZAÂBI ◽  
PATRICK GILLET ◽  
AHMED AFLI ◽  
MONCEF BOUMAIZA
Keyword(s):  
Cluster Analysis ◽  
Species Richness ◽  
Spatial Structure ◽  
Frequency Analysis ◽  
Temporal Variability ◽  
Diversity Index ◽  
Shallow Waters ◽  
Multivariate Methods ◽  
Deep Waters ◽  
Northeast Coast

in Tunisia, polychaete studies are very rare (Fauvel 1924 a, b; Westheide 1972; Zibrowius 1970, 1971; Cantone 1978; Ben Amor 1984; Zaâbi & Afli 2005). The aim of this study was to update and fill in gaps in data of polychaetes of Tunisia. Samples were taken aboard the research vessel R/V Hannibal with a Van Veen grab (0.1 m²) and a core (0.009 m²). Nine sites located on the peninsula of Cap Bon on the NE coast of Tunisia, from Sidi Daoud to Ras Lahmer, were sampled in 2005 and 2006. A total of 5,920 individuals in 29 families and 88 species of polychaetes were identified. Twenty-nine species were newly recorded for Tunisia, including the ampharetid Isolda pulchella O.F. Müller, 1858 and the paraonid Aricidea cerrutii (Laubier, 1966). Diversity parameters were established. Abundance and species richness were higher in shallow waters dominated by Protodorvillea kefersteini (McIntosh, 1869) and Malacoceros fuliginosus (Claparède, 1868) than in deep waters where Aponuphis fauveli (Rioja, 1918) and Euclymene palermitana (Grube, 1840) dominated. Multivariate methods, including the Shannon diversity index, cluster analysis, and rank frequency analysis, were used to characterize the spatial structure and temporal variability of the different communities.

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