scholarly journals Differentiation between Carex arenaria L. populations at the eastern range margin based on female and male glumes variation

2014 ◽  
Vol 69 (1) ◽  
pp. 65-74 ◽  
Author(s):  
Lech Urbaniak ◽  
Izabella Maik ◽  
Daromiła Urbaniak
Keyword(s):  
Migration Routes ◽  
The Baltic Sea ◽  
Carex Arenaria ◽  
Individual Character ◽  
Coefficients Of Variation ◽  
Territory Selection ◽  
The Baltic ◽  
Lower Silesia ◽  
Experimental Garden ◽  
Sea Coast

480 spikes from 16 populations of <em>Carex arenaria</em> L. planted in an experimental garden were collected and analysed for 4 female and 4 male glumes each. The characteristic of the interpopulational differentiation on the area of Poland was based on multivariate analysis, Student t-test and the coefficients of variation. The separateness of three populations from the isolated inland stations - 3(Góra), 11 (Tuczno), 15 (Poznań) and individual character of - 2 (Wisełka), 6 (Sobieszewo) from the coast and 9 (Ołobok) from Lower Silesia is shown. The lowest level of variation and in consequence a particular usefulness for taxonomic considerations have two characters - a and a' (length of female and male glumes). The obtained pattern of interpopulational differentiation may be caused by various factors - migration routes on the Polish territory; selection pressures associated with different ecological conditions present in fixed dunes along the Baltic Sea coast and in isolated inland stations, occupied by <em>C. arenaria</em>; reduction of an extensive primary populations to markedly smaller isolated subpopulations.

scholarly journals Analysis of the variability of nine natural Anthyllis vulneraria s. l. populations. Part II. Biometry of flowers

2015 ◽  
Vol 47 (4) ◽  
pp. 325-342
Author(s):  
K. Łukaszewska ◽  
J. Szweykowska ◽  
Z. Kaczmarek
Keyword(s):  
Baltic Sea ◽  
Natural Populations ◽  
Tatra Mountains ◽  
The Baltic Sea ◽  
Anthyllis Vulneraria ◽  
Vegetative Traits ◽  
The Baltic ◽  
The Tatra Mountains ◽  
Experimental Garden ◽  
Sea Coast

Variation of 1l vegetative traits has been studied in 9 natural populations of <i>Anthyllis vulneraria</i>. The analysis was performed in the field and then, for the second time, on samples of these populations grown in experimental garden in similar conditions. Three genetically different groups has been discovered: l - populations from the Tatra Mountains, 2 - from the Central Poland and Sudetes, 3 - from the Baltic Sea Coast.

Morphological and molecular characterization of adult worms of Leucochloridium paradoxum Carus, 1835 and L. perturbatum Pojmańska, 1969 (Digenea: Leucochloridiidae) from the great tit, Parus major L., 1758 and similarity with the sporocyst stages

2013 ◽  
Vol 88 (4) ◽  
pp. 506-510 ◽  
Author(s):  
I. Rząd ◽  
P. Hofsoe ◽  
R. Panicz ◽  
J.K. Nowakowski
Keyword(s):  
Parus Major ◽  
Morphological Characters ◽  
Great Tit ◽  
Molecular Techniques ◽  
Morphological Identification ◽  
The Baltic Sea ◽  
The Baltic ◽  
Morphological And Molecular Characterization ◽  
Sea Coast

AbstractUnlike the sporocyst stages, adult leucochloridiid digeneans are difficult to differentiate. Sporocyst broodsacs can be identified on the basis of their colour and banding pattern, but in the absence of broodsacs and when experimental infection cannot be performed, tentative morphological identification needs to be verified, and molecular techniques offer a tool to do this. In this study, adult leucochloridiid digeneans were collected from the great tit (Parus major) found dead at three localities at or near the Baltic Sea coast (Hel, Bukowo-Kopań and Szczecin) in northern Poland. On the basis of differences in their morphological characters, Hel specimens were tentatively assigned to Leucochloridium perturbatum, Bukowo-Kopań and Szczecin specimens being identified tentatively as L. paradoxum. Subsequent ribosomal DNA sequence analysis confirmed the identification of these leucochloridiid flukes. Nucleotide sequences discriminating between the two species were identical to those used by earlier authors as characteristic of two distinctly different sporocyst broodsacs representing L. perturbatum and L. paradoxum.

The Baltic Sea coast—A model of interrelations among geosphere, climate, and anthroposphere

2007 ◽  
Author(s):  
Jan Harff ◽  
Wolfram Lemke ◽  
Reinhard Lampe ◽  
Friedrich Lüth ◽  
Harald Lübke ◽  
...  
Keyword(s):  
Baltic Sea ◽  
The Baltic Sea ◽  
The Baltic ◽  
Sea Coast

Mastogloia jahniae sp. nov., a new diatom (Bacillariophyceae) from the Baltic Sea coast of Sweden

Phytotaxa ◽  
2021 ◽  
Vol 484 (1) ◽  
pp. 121-128
Author(s):  
ADIL Y. AL-HANDAL ◽  
ANGELA WULFF ◽  
CHIARA PENNESI
Keyword(s):  
New Species ◽  
Baltic Sea ◽  
East Coast ◽  
Central Area ◽  
The Baltic Sea ◽  
The Baltic ◽  
Brackish Water Species ◽  
Water Species ◽  
Sea Coast ◽  
Scanning Electron

Described is here Mastogloia jahniae sp. nov. a species new to science from Skatan on the Baltic Sea, east coast of Sweden. Description of this new species is based on light and scanning electron microscopy. The new species is classified in the Mastogloia section Ellipticae and is characterized by having radiating short and long striae around the central area, sinuous raphe branches and partecta displaced toward the middle of the valve by a siliceous flange. M. jahniae sp. nov. in terms of size is rather small whereas in terms of ecology appears an epipelic brackish water species. The new species was rather rare in all samples collected from Skatan and has not been found in the other adjacent regions sampled. A comparison with similar established Mastogloia species is provided.

Simulating extreme sea levels at the Baltic Sea coast from synthetic cyclones

2020 ◽  
Author(s):  
Jani Särkkä ◽  
Jani Räihä ◽  
Matti Kämäräinen ◽  
Kirsti Jylhä
Keyword(s):  
Baltic Sea ◽  
Sea Level ◽  
Water Volume ◽  
The Baltic Sea ◽  
Data Set ◽  
Sea Levels ◽  
Extreme Sea Levels ◽  
Level Model ◽  
The Baltic ◽  
Sea Coast

&lt;p&gt;Coastal areas are under rapid changes. Management to face flooding hazards in changing climate is of great significance due to the major impact of flooding events in densely populated coastal regions, where also important and vulnerable infrastructure is located. The sea level of the Baltic Sea is affected by internal fluctuations caused by wind, air pressure and seiche oscillations, and by variations of the water volume due to the water exchange between the Baltic Sea and the North Sea through the Danish Straits. The highest sea level extremes are caused by cyclones moving over the region. The most vulnerable locations are at the ends of the bays. St. Petersburg, located at the eastern end of the Gulf of Finland, has experienced major sea floods in 1777, 1824 and 1924.&lt;/p&gt;&lt;p&gt;In order to study the effects of the depths and tracks of cyclones on the extreme sea levels, we have developed a method to generate cyclones for numerical sea level studies. A cyclone is modelled as a two-dimensional Gaussian function with adjustable horizontal size and depth. The cyclone moves through the Baltic Sea region with given direction and velocity. The output of this method is the gridded data set of mean sea level pressure and wind components which are used as an input for the sea level model. The internal variations of the Baltic Sea are calculated with a numerical barotropic sea level model, and the water volume variations are evaluated using a statistical sea level model based on wind speeds near the Danish Straits. The sea level model simulations allow us to study extremely rare but physically plausible sea level events that have not occurred during the observation period at the Baltic Sea coast. The simulation results are used to investigate extreme sea levels that could occur at selected sites at the Finnish coastline.&lt;/p&gt;

Modeling of Storm Induced Island Breaching at the Baltic Sea Coast

2006 ◽  
Author(s):  
Markus Witting ◽  
Peter Mewis ◽  
Ulrich Zanke
Keyword(s):  
Baltic Sea ◽  
The Baltic Sea ◽  
The Baltic ◽  
Sea Coast

scholarly journals The flies (Diptera) say that amber from the Gulf of Gdańsk, Bitterfeld and Rovno is the same Baltic amber

2013 ◽  
Vol 82 (4) ◽  
pp. 379-388 ◽  
Author(s):  
Jacek Szwedo ◽  
Elżbieta Sontag
Keyword(s):  
Species Composition ◽  
Baltic Sea ◽  
Geographical Origin ◽  
Baltic Amber ◽  
Gulf Of Gdańsk ◽  
The Baltic Sea ◽  
Biting Midges ◽  
Gulf Of Gdansk ◽  
The Baltic ◽  
Sea Coast

ABSTRACT Amber and its inclusions have been studied for over 200 years. Particular reverence was accorded the amber from the deposits around the Gulf of Gdańsk. As knowledge of amber increased, the problem of distinguishing amber from the various deposits along the Baltic Sea coast, but also in Germany, Belarus and Ukraine arose. Here we discuss the species composition of biting midges (Ceratopogonidae) from amber derived from different deposits, and discuss the use of regional names for Baltic amber yielding inclusions from the same taphocoenosis but of different geographical origin.

Description of a new fossil Statira Lepeletier et Audinet-Serville, 1828 (Coleoptera: Tenebrionidae: Lagriinae) from Baltic amber of the Sambian Peninsula

Zootaxa ◽  
2019 ◽  
Vol 4683 (4) ◽  
pp. 508-514 ◽  
Author(s):  
DMITRY TELNOV ◽  
ANDRIS BUKEJS ◽  
OTTÓ MERKL
Keyword(s):  
Baltic Sea ◽  
New World ◽  
Baltic Amber ◽  
The Baltic Sea ◽  
Kaliningrad Region ◽  
The Baltic ◽  
Sea Coast ◽  
Coleoptera Tenebrionidae

Statira baltica sp. nov. is described from Eocene Baltic amber found in the Baltic Sea coast, Yantarny settlement, Kaliningrad Region, Russia. This is the second described fossil member of the genus Statira Lepeletier et Audinet-Serville, 1828 and the tribe Lagriini Latreille, 1825, and the first from outside the New World. 

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