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    Wyświetlanie 1-12 z 12
    Tytuł:
    Systematics and paleobiology of Carnivora and Hyaenodonta from the lower Miocene of Buluk, Kenya
    Autorzy:
    Morlo, M.
    Friscia, A.
    Miller, E.R.
    Locke, E.
    Nengo, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/2082322.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Mammalia
    Carnivora
    Amphicyonidae
    Hyainailouridae
    Viverridae
    guild structure
    Miocene
    Kenya
    Opis:
    Early Miocene carnivorous mammals from Buluk, Kenya, are described and discussed. Four taxa belonging to Hyaenodonta and four belonging to Carnivora are identified. Members of Hyaenodonta include Hyainailouros sulzeri, Hyainailouros cf. napakensis, a third taxon about the size of Leakitherium, represented only by postcranial material, and a fourth taxon represented by an edentulous jaw, in the size range of Sectisodon. Members of Carnivora include a new species of Cynelos jitu, which represents the largest species of Cynelos known. The first m2 of Cynelos macrodon is described, and the differentiation of this species from Cynelos ginsburgi and Cynelos peignei is confirmed. A third carnivoran species is represented by a mandibular fragment attributed to a viverrid similar to Mioprionodon, and a fourth taxon is represented by a feliform distal humerus, the size of that of a small cat. An ecomorphological guild structure analysis reveals that the Buluk carnivore have estimated body sizes spanning from <1 kg to >100 kg. Three very large species (>100 kg), and another two in the 30–100 kg range are present, while only two taxa are present in the 3–10 kg category. Carnivores in the 1–3 kg and the 10–30 kg categories are absent. Locomotor pattern could be obtained for only four taxa, and all are characterized by terrestrial locomotion. A minimum of three dietary classes (insectivorous, carnivorous, scavenging) are represented. The co-occurrence of multiple very large carnivores is not uncommon in early Miocene faunas, but the taphonomy of Buluk may also contribute to the favored preservation of larger and terrestrially adapted animals.
    Źródło:
    Acta Palaeontologica Polonica; 2021, 66, 2; 465-484
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A new genus of "miacid" carnivoran from the earliest Eocene of Europe and North America
    Autorzy:
    Smith, T.
    Smith, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/21490.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    paleontology
    new genus
    Carnivora
    systematics
    Gracilocyon
    Eocene
    Europe
    North America
    Opis:
    “Miacid” carnivorans comprise one of the modern mammal groups appearing around the Palaeocene–Eocene Thermal Maximum (PETM) in the Northern Hemisphere. Here we describe a new very small “miacid” carnivoran from the earliest Eocene of Dormaal, Belgium, that shares a particular dental morphology with the species “Miacis” winkleri and “Miacis” rosei from the early Eocene of North America. The three species present very gracile and sharp teeth, and are hereby placed in the new genus Gracilocyon. Comparative dental analysis of Gracilocyon with other early “miacids” contributes to better resolve the polarity of dental characters and indicates that this genus is one of the most primitive members of the family. Diversity of early modern carnivorans is greater than previously considered and early “miacids” seem to have dispersed into North America from two different geographic origins.
    Źródło:
    Acta Palaeontologica Polonica; 2010, 55, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Trichinella spp. (Nematoda) in free-living carnivores (Mammalia: Carnivora) from the Lower Silesia (Poland)
    Autorzy:
    Piekarska, J.
    Gorczykowski, M.
    Kicia, M.
    Pacon, J.
    Soltysiak, Z.
    Merta, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/6261.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Tematy:
    Trichinella
    Nematoda
    free living animal
    carnivore
    Mammalia
    Carnivora
    Lower Silesian region
    Polska
    Źródło:
    Annals of Parasitology; 2016, 62, Suppl.
    0043-5163
    Pojawia się w:
    Annals of Parasitology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Body mass estimation in amphicyonid carnivoran mammals: A multiple regression approach from the skull and skeleton
    Autorzy:
    Figueirido, B.
    Perez-Claros, J.A.
    Hunt, R.M.Jr.
    Palmqvist, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/21366.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    body mass
    estimation
    amphicyonid
    mammal
    skull
    skeleton
    Mammalia
    Carnivora
    Amphicyonidae
    multiple regression
    paleontology
    Opis:
    The body masses of sixteen species of amphicyonids (Mammalia, Carnivora, Amphicyonidae) from the New and Old World were estimated on the basis of 86 osteological variables measured from the craniodental (N = 44) and postcranial (N = 42) skeleton of living species of Canidae and Ursidae. Given the absence of complete and well preserved skeletons of amphicyonids in the fossil record, multiple regression functions were derived separately from measurements taken from the mandible, the cranium and the major limb bones. The accuracy of the regression functions was evaluated using the percentage prediction error and the percentage standard error of the estimates. Mass values were calculated with these equations using measurements taken in adult individuals from a number of daphoenine and amphicyonine species. Results obtained show that three distinct size classes of amphicyonids emerged through the evolutionary history of the “beardog” family and that these size classes correlate with presumably different ecomorphs. Quantitative estimates of body size of amphicyonids are critical for deciphering the paleobiology of this poorly understood family of large fissiped carnivorans and can be used for placing it within a broader ecological context.
    Źródło:
    Acta Palaeontologica Polonica; 2011, 56, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An aberrant amphicyonid mammal from the latest Eocene of the Bose Basin, Guangxi, China
    Autorzy:
    Zhai, R
    Ciochon, R.L.
    Tong, Y.
    Savage, D.E.
    Morlo, M.
    Holroyd, P.A.
    Gunnell, G.F.
    Powiązania:
    https://bibliotekanauki.pl/articles/22578.pdf
    Data publikacji:
    2003
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Amphicyonidae
    Eocene
    mammal
    China
    Carnivora
    Guangxi
    amphicyonid mammal
    Nadu Formation
    Bose Basin
    paleontology
    Opis:
    A new genus and species of an amphicyonid from the Bose Basin of Guangxi, south China, is short−jawed with relatively bunodont cheek teeth that are characterized by reduction in cusp number. This taxon is the oldest record of an amphicyonid from south Asia and possibly for all of Asia. Despite its antiquity, it is derived in the development of brachygnathy and differs from other early amphicyonids that have shortened faces. Evidently brachygnathy was established in this species without loss of p1–2 or m2–3, which became single−rooted from a primitive double−rooted condition.
    Źródło:
    Acta Palaeontologica Polonica; 2003, 48, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ailurid carnivoran mammal Simocyon from the late Miocene of Spain and the systematics of the genus
    Autorzy:
    Peigne, S
    Salesa, M.J.
    Anton, M.
    Morales, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/21488.pdf
    Data publikacji:
    2005
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Ailuridae
    red panda
    Miocene
    mammal
    Mammalia
    Carnivora
    Simocyon
    Europe
    Ailurus fulgens
    Spain
    Madrid Basin
    paleontology
    Opis:
    We describe the most complete and best−preserved materials assigned to Simocyon from Spain. Specimens come from the late Miocene (Vallesian) locality of Batallones−1, Province of Madrid and are assigned to Simocyon batalleri. Cranial, mandibular and dental anatomy of S. batalleri from Batallones−1 is described and compared with those of known species of Simocyon. We review the systematic status and the definition of the species of Simocyon and we analyse the morphological variation within Simocyon. Three species are recognized as valid. S. batalleri is known from several Vallesian localities (mainly MN 10) of Spain. S. diaphorus, from the early Vallesian of Germany (Mammal Zone MN 9), is the geologically oldest European species. The type species S. primigenius is Turolian in age and known from several localities of Europe, North America, and China. The species includes the junior synonyms S. zdanskyi and S. marshi. The status of Simocyon hungaricus is not resolved. Simocyon simpsoni is excluded here from Simocyon and reassigned to its original generic name Protursus. On the basis of the material described here, we propose a differential diagnosis for Simocyon batalleri. This species is morphologically intermediate between the more primitive S. diaphorus, which has a less reduced p3; and the more derived S. primigenius, characterized by a modified mandible (e.g., more vertical and more expanded coronoid process, longer angular process). The evolution of the genus Simocyon is characterized by a trend toward a more crushing adaptation involving at least a modification of the posterior part of the mandible. A reconstruction of the skull and life appearance of Simocyon is proposed.
    Źródło:
    Acta Palaeontologica Polonica; 2005, 50, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Paleoecology of the large carnivore guild from the late Pleistocene of Argentina
    Autorzy:
    Prevosti, F.J.
    Vizcaino, S.F.
    Powiązania:
    https://bibliotekanauki.pl/articles/23538.pdf
    Data publikacji:
    2006
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Carnivora
    carnivore
    Late Pleistocene
    Pleistocene
    South America
    paleoecology
    population density
    Argentina
    paleontology
    fossil carnivore
    locality
    biomass
    ecology
    Opis:
    The paleoecology of the South American fossil carnivores has not been as well studied as that of their northern relatives. One decade ago Fariña suggested that the fauna of Río Luján locality (Argentina, late Pleistocene–early Holocene) is not balanced because the metabolic requirements of the large carnivores are exceeded by the densities and biomass of the large herbivores. This conclusion is based on the calculation of densities using allometric functions between body mass and population abundance, and is a consequence of low carnivore richness versus high herbivore richness. In this paper we review the carnivore richness in the Lujanian of the Pampean Region, describe the paleoecology of these species including their probable prey choices, and review the available information on taphonomy, carnivore ecology, and macroecology to test the hypothesis of “imbalance” of the Río Luján fauna. The carnivore richness of the Río Luján fauna comprises five species: Smilodon populator, Panthera onca, Puma concolor, Arctotherium tarijense, and Dusicyon avus. Two other species are added when the whole Lujanian of the Buenos Aires province is included: Arctotherium bonariense and Canis nehringi. With the exception of D. avus and Arctotherium, these are hypercarnivores that could prey on large mammals (100–500 kg) and juveniles of megamammals (>1000 kg). S. populator could also hunt larger prey with body mass between 1000 and 2000 kg. The review of the “imbalance” hypothesis reveals contrary evidence and allows the proposal of alternative hypotheses. If high herbivore biomass occurred during the Lujanian, a higher density of carnivores could be supported than as inferred from the power function of body size and population density.
    Źródło:
    Acta Palaeontologica Polonica; 2006, 51, 3
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    New data on the prevalence of Trichodectes melis (Phthiraptera, Trichodectidae) on the European badger Meles meles (Carnivora, Mustelidae)
    Autorzy:
    Kozina, P.
    Golcz, A.
    Izdebska, J.N.
    Powiązania:
    https://bibliotekanauki.pl/articles/6543.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Tematy:
    new data
    prevalence
    Trichodectes melis
    ectoparasite
    distribution
    Phthiraptera
    Trichodectidae
    parasite
    European badger
    Meles meles
    Carnivora
    Mustelidae
    Bialowieza Forest
    Opis:
    Trichodectes melis is a specific ectoparasite of the European badger Meles meles. Distribution of this chewing louse is little known, although presumably it coincides with the range of its typical host. In Poland, it has been found in only a few stands in the western part of the country. It has recently been observed in the area of the Białowieża Primeval Forest, where 81 specimens of T. melis (48 females, 7 males and 26 nymph forms) were collected from two female European badgers, mainly from the fur of the head area. No symptoms of infestation were observed.
    Źródło:
    Annals of Parasitology; 2014, 60, 4
    0043-5163
    Pojawia się w:
    Annals of Parasitology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Morphological disparity in Plio-Pleistocene large carnivore guilds from Italian Peninsula
    Autorzy:
    Meloro, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/22061.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Carnivora
    Italian Peninsula
    Italy
    morphological diversity
    Pleistocene
    Plio-Pleistocene
    Quaternary
    geometrical morphometry
    large mammal
    mandible shape
    paleontology
    morphological variability
    taxonomy
    Opis:
    Communities of large mammals exhibit changes in morphological diversity through space and time; changes that are possibly correlated to distinct aspects of the physical environment. Here, I explore shape changes in the trophic apparatus of large carnivore guilds, comparing extant communities with Quaternary ones, from peninsular Italy. Mandibular shape is quantified through geometric morphometrics and its disparity is computed for each carnivore guild. Patterns of morphospace occupation through space and time reveal that extant carnivore guilds are negatively influenced by number of artiodactyls. Very productive ecosystems show low values of morphological disparity because species tend to occupy central regions of the morphospace rather than extreme areas. Disparity of mandibular corpus shape remains relatively stable throughout the Quaternary in the large carnivore communities of the Italian peninsula. They exhibit similar values to extant guilds because the trophic apparatus did not evolved important morphological novelties. Interestingly, carnivore guilds of the late Pliocene (3.5 Ma) and early Pleistocene (0.8 Ma) show over−dispersed or random morphospace occupation because of a depleted fauna, precluding successive structural changes. The same applies for the extant European carnivore guild as a result of recent extinctions without replacement.
    Źródło:
    Acta Palaeontologica Polonica; 2011, 56, 1
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena występowania i tendencji zmian liczebności dużych i średnich ssaków w polskich parkach narodowych
    The occurence and tendencies for change in the numbers of mammals in Polish national parks
    Autorzy:
    Jamrozy, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/1013462.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    zmiany liczebnosci
    fauna
    drapiezne
    parzystokopytne
    ssaki
    Polska
    Rodentia
    lesnictwo
    parki narodowe
    ochrona przyrody
    Lagomorpha
    wystepowanie
    zajeczaki
    Artiodactyla
    Carnivora
    gryzonie
    polish national parks
    mammals
    lagomorphs
    carnivores
    even−toed ungulates
    big rodents
    occurrence
    population trends
    Opis:
    Paper presents the results of evaluation of the occurrence and population trends of mammals in 23 Polish national parks. Investigation was based on survey carried out among national park field workers. 29 large and medium−sized mammal species were found in Polish national parks. Growth in the populations of beaver Castor fiber, fox Vulpes vulpes, otter Lutra lutra as well as wild boar Sus scrofa were observed. A clear population regression was recognised for muskrat Ondatra zibethicus and brown hare Lepus europaeus.
    Źródło:
    Sylwan; 2008, 152, 02; 36-44
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zróżnicowanie regionalne i waloryzacja polskich parków narodowych pod względem występowania dużych i średnich ssaków
    Regional diversity and valorisation of Polish national parks according to the occurence of large and medium mammals
    Autorzy:
    Jamrozy, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/1015615.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    zmiany liczebnosci
    fauna
    gatunki obce
    drapiezne
    parzystokopytne
    ssaki
    inwentaryzacja przyrodnicza
    Rodentia
    lesnictwo
    parki narodowe
    Lagomorpha
    wystepowanie
    zajeczaki
    Artiodactyla
    zroznicowanie regionalne
    gatunki rzadkie
    Carnivora
    gryzonie
    polish national parks
    large and medium mammals
    distribution
    population trends
    regional differences
    valorisation of national parks
    Opis:
    The paper presents research on the number of large and middle−sized mammal species and changes in their populations (1996−2005) in Polish national parks. The greatest number of native mammalian fauna was found in the Carpathian and the eastern national parks. Clearly the smallest number of mammalian species were recognised in the southern uplands, north−western and especially the Sudety region parks. Non−native species of large mammals, which were almost non−existent in the Carpathian parks, occurred in the remaining regions – primarily in the north−western part of the country. The number of native mammalian species in Polish national parks was positively correlated with longitude and in the mountains − negatively correlated with latitude.
    Źródło:
    Sylwan; 2008, 152, 06; 53-62
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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