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Wyszukujesz frazę "Rissooidea" wg kryterium: Temat


Wyświetlanie 1-5 z 5
Tytuł:
Radiation in Bythinella Moquin-Tandon, 1856 (Mollusca: Gastropoda: Rissooidea) in the Balkans
Autorzy:
Falniowski, A.
Szarowska, M.
Gloer, P.
Pesic, V.
Georgiev, D.
Horsak, M.
Sirbu, I.
Powiązania:
https://bibliotekanauki.pl/articles/83201.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Tematy:
radiation
Bythinella
Mollusca
Gastropoda
Rissooidea
Balkan Peninsula
DNA
phylogenesis
taxonomy
speciation
locality
Opis:
61 sequences of cytochrome oxidase subunit 1 (COI), 570 bp long, from Central Europe (8), Slovenia (2), and from the Balkans (51: 6 from, Romania, 15 from Greece, 15 from Bulgaria, 6 from Serbia, and 9 from Montenegro), 33 of them new, together with 61 sequences of the ribosomal 18S, 450 bp long, all of them new, were analysed to infer the pattern of radiation of Bythinella in the Balkans. Thirty two nominal taxa of Bythinella (22 nominal species: B. austriaca, B. calimanica, B. charpentieri, B. compressa, B. dacica, B. dispersa, B. grossui, B. hansboetersi, B. luteola, B. micherdzinskii, B. molcsanyi, B. nonveilleri, B. pannonica, B. pesterica, B. radomani, B. rhodopensis, B. robiciana, B. schmidti, B. slaveyae, B. srednogorica, B. taraensis and B. viseuiana; one nominal subspecies: B. austriaca ehrmanni; and nine Greek species not yet described) were included, represented mostly by paratypes or at least topotypes, collected at 31 Balkan localities. The phylogeny, inferred on the combined data set with the ML approach, showed two large clades, although they were weakly supported. One of them comprised the Romanian and Montenegro populations, and one Serbian population, the other (less genetically diversified) consisted of one Serbian and all the Bulgarian/Greek populations. The origin of those two clades was dated, with the external data, to be more than 4.341±0753 MYA old, thus its origin was assigned to isolation by the Dacic Basin (part of Paratethys). All the Bulgarian populations presumably belong to one species, which may be assigned to the recent recolonisation of this territory from the south.
Źródło:
Folia Malacologica; 2012, 20, 1
1506-7629
Pojawia się w:
Folia Malacologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pseudamnicola exilis (Frauenfeld, 1863) in southern Greece: a remnant of a flock of species (Rissooidea: Hydrobiidae)?
Autorzy:
Szarowska, M.
Falniowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/83483.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Tematy:
Pseudamnicola exilis
Greece
Rissooidea
Hydrobiidae
phylogenesis
animal population
shell
morphology
gene flow
reproductive organ
diversity
Opis:
The morphology of shell, penis, and female reproductive organs was studied in five populations of Pseudamnicola exilis (Frauenfeld) from southern Peloponnese and Kithira Island (Greece). No interpopulation differences were found in any of the characters. Thirty eight sequences of mitochondrial cytochrome oxidase subunit I (COI) and nuclear ribosomal 18S RNA genes were analysed. In COI 19 haplotypes, high haplotypy diversity, low nucleotide diversity in each population, and restricted gene flow between populations were found. NCA indicated allopatric fragmentation for all populations, and long-distance colonisation and/or past fragmentation for populations 4 and 5. Mismatch distribution in the most polymorphic population 4 reflected a bottleneck followed by population growth. The values of K2P interpopulation distances, though relatively low, pointed to congeneric distinct species within the Rissooidea. The monophyly of Pseudamnicola/Adrioinsulana clade was confirmed. Most probably the studied populations of Pseudamnicola were part of a flock of vicariant species little differentiated in morphology and ecology, many of which must have disappeared due to human impact.
Źródło:
Folia Malacologica; 2011, 19, 3
1506-7629
Pojawia się w:
Folia Malacologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Early ontogeny and palaeoecology of the Mid-Miocene rissoid gastropods of the Central Paratethys
Autorzy:
Kowalke, T
Harzhauser, M.
Powiązania:
https://bibliotekanauki.pl/articles/21635.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Miocene
gastropod
Mohrensternia pfaffstaettensis
morphology
embryonic shell
Sarmatian
Mohrensternia hollabrunnensis
Gastropoda
ontogenesis
Caenogastropoda
rissoid gastropod
Badenian
paleoecology
Rissooidea
Littorinimorpha
Opis:
Twenty−six species of Rissoidae (Caenogastropoda: Littorinimorpha: Rissooidea) are described from the Badenian and Early Sarmatian of 14 localities in Austria and the Czech Republic (Molasse Basin, Styrian Basin, Vienna Basin) and from the Badenian of Coştei (Romania). For the first time, the early ontogenetic skeletal characters of these gastropods are described. Based on these features an indirect larval development with a planktotrophic veliger could be reconstructed for all investigated Mid−Miocene species. The status of Mohrensterniinae as a subfamily of the Rissoidae is confirmed by the morphology of the low conical protoconch, consisting of a fine spirally sculptured embryonic shell and a larval shell which is smooth except for growth lines. Transitions from embryonic shells to larval shells and from larval shells to teleoconchs are slightly thickened and indistinct. Whilst representatives of the subfamily Rissoinae characterise the marine Badenian assemblages, Mohrensterniinae predominate the Early Sarmatian faunas. We hypothesize that this take−over by the Mohrensterniinae was triggered by changes in the water chemistry towards polyhaline conditions. Consequently, the shift towards hypersaline conditions in the Late Sarmatian is mirrored by the abrupt decline of the subfamily. Four new species Rissoa costeiensis (Rissoinae) from the Badenian and Mohrensternia hollabrunnensis, Mohrensternia pfaffstaettensis, and Mohrensternia waldhofensis (Mohrensterniinae) from the Early Sarmatian are introduced.
Źródło:
Acta Palaeontologica Polonica; 2004, 49, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phylogenetic relationships of Alzoniella slovenica (Lozek et Brtek, 1964) (Caenogastropoda: Hydrobiidae)
Autorzy:
Szarowska, M.
Falniowski, A.
Steffek, J.
Powiązania:
https://bibliotekanauki.pl/articles/83587.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Tematy:
cytochrome oxidase subunit 1
mtDNA
phylogenetic relationship
Alzoniella slovenica
Caenogastropoda
Hydrobiidae
Rissooidea
morphology
phylogenesis
shell
radula
penis
reproductive organ
female
snail
Źródło:
Folia Malacologica; 2011, 19, 2
1506-7629
Pojawia się w:
Folia Malacologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Destroyed and threatened localities of rissooid snails (Gastropoda: Rissooidea) in Greece
Autorzy:
Szarowska, M.
Falniowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/83005.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Tematy:
rissooid snail
snail
Gastropoda
Rissooidea
Greece
locality
Belgrandiella
Daphniola
Graecorientalia
Grossuana
Horatia
Orientalina
Paladilhia
Pseudamnicola
Semisalsa
Trichonia
conservation
freshwater habitat
brackish water habitat
Opis:
In September 2003 we visited localities of rissooid snails in continental Greece, known from the literature. Nine springs (type localities included), situated in urbanized or cultivated areas, were destroyed, changed or under stress. Localities of Rissooidea in Greece need urgent protection, otherwise the snails may disappear altogether.
Źródło:
Folia Malacologica; 2011, 19, 1
1506-7629
Pojawia się w:
Folia Malacologica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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