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    Wyświetlanie 1-10 z 10
    Tytuł:
    Molluscs as technical models
    Autorzy:
    Samek, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/83907.pdf
    Data publikacji:
    2012
    Wydawca:
    Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
    Tematy:
    mollusc
    technical model
    animal morphology
    unusual structure
    phenomenon
    Źródło:
    Folia Malacologica; 2012, 20, 1
    1506-7629
    Pojawia się w:
    Folia Malacologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Representatives of the genus Monacha in Poland
    Autorzy:
    Pienkowska, J.R.
    Lesicki, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/83322.pdf
    Data publikacji:
    2012
    Wydawca:
    Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
    Tematy:
    Monacha
    snail
    Monacha cartusiana
    species distribution
    distribution range
    shell
    genitalia
    animal morphology
    morphology
    Polska
    Źródło:
    Folia Malacologica; 2012, 20, 1
    1506-7629
    Pojawia się w:
    Folia Malacologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Using scanning electron microscopy to study slug morphology
    Autorzy:
    Kaluski, T.
    Gawlak, M.
    Cieluch, P.
    Kozlowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/84768.pdf
    Data publikacji:
    2012
    Wydawca:
    Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
    Tematy:
    scanning electron microscopy
    slug
    Arion lusitanicus
    Arion rufus
    pest
    cultivated plant
    animal population
    animal morphology
    Źródło:
    Folia Malacologica; 2012, 20, 1
    1506-7629
    Pojawia się w:
    Folia Malacologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Epibiota associated with setae on Chinese mitten crab claws (Eriocheir sinensis H. Milne-Edwards, 1853): a first record
    Autorzy:
    Normant, M.
    Korthals, J.
    Szaniawska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/47515.pdf
    Data publikacji:
    2007
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    claw
    new habitat
    fresh water
    Eriocheir sinensis
    brackish water
    animal morphology
    Chinese mitten crab
    crab
    Opis:
    Eriocheir sinensis H. Milne-Edwards, 1853 is a non-native species found in European waters. Analyses of mitten crabs caught in brackish waters (Gulf of Gdańsk, Poland) and in freshwater (Havel River, Germany) have indicated that numerous epibionts (possibly temporary) inhabit the dense setal mats that cover the chelipeds. Of the 950 associates found on 22 crabs collected from brackish water, the most abundant were Nematoda (82.3%), followed by Bivalvia (10.3%), Crustacea (5.6%), Oligochaeta (1.2%) and Gastropoda (0.6%). In comparison, 1280 specimens (Chironomidae – 67.6% and Halacaridae – 32.4%), were identified from 13 crabs collected in freshwater. As this crab can migrate long distances, it is capable of transporting native and non-native species via its mittened claws to new habitats.
    Źródło:
    Oceanologia; 2007, 49, 1
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Morphometric description of the larynx in the dog (Canis familiaris)
    Morfometryczny opis krtani psa (Canis familiaris)
    Autorzy:
    Dzierzęcka, M.
    Charuta, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2600248.pdf
    Data publikacji:
    2021
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    dog
    animal anatomy
    larynx
    laryngeal cartilages
    morphology
    linear parameter
    Źródło:
    Acta Scientiarum Polonorum. Zootechnica; 2021, 20, 4; 43-50
    1644-0714
    Pojawia się w:
    Acta Scientiarum Polonorum. Zootechnica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of sperm concentration in an ejaculate on morphometric traits of spermatozoa in Duroc boars
    Autorzy:
    Kondracki, S.
    Wysokinska, A.
    Iwanina, M.
    Banaszewska, D.
    Sitarz, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/31784.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    sperm concentration
    ejaculate
    morphometry
    spermatozoon
    Duroc boar
    boar
    morphology
    animal reproduction
    mammal
    Opis:
    The experimental material consisted of 75 ejaculates collected form 8 Duroc boars. The ejaculates were divided into three groups according to sperm concentration in an ejaculate. An ejaculate was obtained from each boar monthly and it was used to make microscopic preparations to examine spermatozoa morphology. In each preparation morphometric measurements were taken of fifteen randomly selected spermatozoa characterized by normal morphology. The following measurements of spermatozoa were taken: length and width of the spermatozoa head, head area, length of the flagellum, perimeter of the spermatozoon head and total spermatozoon length. The results were used to calculate indicators of spermatozoa morphology. Moreover, assessments were made of frequency of morphological defects to isolate spermatozoa with primary and secondary abnormalities following the Blom classification system. It was found that the concentration of spermatozoa in the ejaculate influenced the morphometric characteristics of spermatozoa. Ejaculates with low sperm concentrations are characterized by larger spermatozoa as compared to ejaculates with high sperm concentrations. However, sperm concentration in the ejaculate does not much influence the shape of spermatozoa.
    Źródło:
    Polish Journal of Veterinary Sciences; 2011, 14, 1
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    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:
    Morphological features of Cloacotaenia megalops (Nitzsch in Creplin, 1829) (Cestoda, Hymenolepididae) from different hosts
    Charakterystyka morfometryczna Cloacotaenia megalops (Nitzsch in Creplin, 1829) (Cestoda, Hymenolepididae) z różnych żywicieli
    Autorzy:
    Nowak, M.
    Krolaczyk, K.
    Kavetska, K.
    Pilarczyk, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/839131.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Tematy:
    Anatinae
    Cloacotaenia megalops
    animal parasite
    bird
    host impact
    morphology
    tapeworm
    West Pomeranian region
    Polska
    Cestoda
    Hymenolepididae
    host
    parasite
    Źródło:
    Annals of Parasitology; 2011, 57, 1
    0043-5163
    Pojawia się w:
    Annals of Parasitology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Morphological features of Cloacotaenia megalops (Nitzsch in Creplin, 1829) (Cestoda, Hymenolepididae) from different hosts
    Charakterystyka morfometryczna Cloacotaenia megalops (Nitzsch in Creplin, 1829) (Cestoda, Hymenolepididae) z różnych żywicieli
    Autorzy:
    Nowak, M.
    Królaczyk, K.
    Kavetska, K.
    Pilarczyk, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/2143302.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Tematy:
    Anatinae
    Cloacotaenia megalops
    animal parasite
    bird
    host impact
    morphology
    tapeworm
    West Pomeranian region
    Polska
    Cestoda
    Hymenolepididae
    host
    parasite
    Opis:
    The tapeworm species Cloacotaenia megalops (Nitzsch in Creplin, 1829) is characterized by a very specific morphology. A particularly distinct feature is a large almost square scolex in which four fleshy suction cups are embedded and a rudimentary rostellum. During standard studies of wild duck cestode fauna in northwestern Poland, some morphological differences were observed among specimens, mainly in the shape of scolices and hermaphroditic proglottids of C. megalops isolated from different bird species. This paper attempts to demonstrate the impact of the host species on morphology of the parasite. The study material consisted of 39 individuals of C. megalops (19 from Aythya fuligula, 10 from Anas platyrhynchos, 4 from Bucephala clangula, 4 from Aythya marila and 2 from A. ferina). The isolated parasites were fixed and stored in 70% ethanol and solid preparations were made. Selected external and internal structures of the parasite were measured and photographed using a Zeiss microscope, a microscope camera Opta Tech 2.1 and Opta View 6.0.2.2. It was stated that the sizes of the most important elements of the parasite morphology are generally consistent with those presented in the available literature, nevertheless some differences were observed in both morphology and sizes of some anatomical structures, especially in the form of scolices and hermaphroditic proglottids between specimens isolated from hosts representing three different eco-tribes (Aythyini, Anatini and Mergini).
    Źródło:
    Wiadomości Parazytologiczne; 2011, 57, 1; 31-36
    0043-5163
    Pojawia się w:
    Wiadomości Parazytologiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Piggyback whorls: A new theoretical morphologic model reveals constructional linkages among morphological characters in ammonoids
    Autorzy:
    Ubukata, T
    Tanabe, K.
    Shigeta, Y.
    Maeda, H.
    Mapes, R.H.
    Powiązania:
    https://bibliotekanauki.pl/articles/20269.pdf
    Data publikacji:
    2008
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    morphospace
    morphology
    morphological data
    fossil animal
    constructional linkage
    ammonoid
    paleontology
    cross-sectional shape
    computer simulation
    shell growth
    morphological diversity
    Opis:
    A new theoretical morphological model is proposed for the analysis of growth, form and morphospace of ammonoid shells. In this model, the shape of a radial cross section through the shell is simulated by “piggybacking” of successive whorls. The “piggyback whorls model” is defined in terms of the enlarging rate of the perimeter and the proportion of the dorsal wall to the whorl periphery, if an isometric relationship is assumed between perimeter and area of the cross−sectioned whorl. Allometric coefficients on these growth parameters determine how compressed and evolute shells are formed. The present model successfully reproduced some correlations among purely geometric variables that have been reported in previous works and were also observed in our biometric analyses. This model yields a hypothesis of “constructional linkages” between aperture shape and coiling geometry that might provide a functional coupling between hydrostatic and hydrodynamic characters. The model may partly explain Buckman’s Law of Covariation between rib features and shell shapes.
    Źródło:
    Acta Palaeontologica Polonica; 2008, 53, 1
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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