Results 171 to 180 of about 827 (199)
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Blood sampling technique in penguins (Sphenisciformes)
Veterinary Record, 1983The blood vessels in the flippers of members of the Sphenisciformes were studied with the aim of locating a suitable anatomical site for the collection of blood from this order. The optimal site was found to be the brachial vein on the ventral surface of the flipper. Blood samples were taken using this method from five different species.
H J, Samour +3 more
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Verwandtschaftsbeziehungen bei Pinguinen(Sphenisciformes)
Journal für Ornithologie, 1981Die Verwandtschaftsbeziehungen der Pinguine untereinander konnten bisher weder durch morphologische noch durch chemische Merkmale befriedigend geklart werden. Als weiterer Merkmalskomplex wird die Komposition der Burzelwachse von 11 Pinguinarten mit zumindest jeweils einem Vertreter samtlicher rezenten Pinguingattungen herangezogen.
Jürgen Jacob, Heinrich Hoerschelmann
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Flightlessness and Long Bone Allometry in Palaeognathiformes and Sphenisciformes
Netherlands Journal of Zoology, 1996Palaeognathiformes and Sphenisciformes are the only two major taxa that have lost the capacity for flying. Nevertheless, the consequences of this flightlessness are completely different. While Palaeognathiformes are all running birds, Sphenisciformes are adapted to swimming. To study the morphology of leg and wing bones, length, sagittal and transverse
Cubo, Jorge, Casinos, A.
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Skull morphometry of Pygoscelis (Sphenisciformes): inter and intraspecific variations
Polar Biology, 2006Morphological diversity of 47 pygoscelid skulls was tested empirically through geometric morphometrics approach. Using 14 landmarks, shape is analyzed independently of other aspects of the body form. The shape disparity within and between the three living species of Pygoscelis is explored as well as how the structure of the skull is related to food ...
Carolina Acosta Hospitaleche +1 more
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Biological Chemistry Hoppe-Seyler, 1988
The blood of the Rock-Hopper Penguin contains only one hemoglobin component, corresponding to the Hb A of other birds. The primary structures of the alpha- and beta-chains are presented. The chains were separated by high-performance liquid chromatography and cleaved either enzymatically (alpha) or both enzymatically and chemically (beta).
K, Huber +4 more
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The blood of the Rock-Hopper Penguin contains only one hemoglobin component, corresponding to the Hb A of other birds. The primary structures of the alpha- and beta-chains are presented. The chains were separated by high-performance liquid chromatography and cleaved either enzymatically (alpha) or both enzymatically and chemically (beta).
K, Huber +4 more
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Cladistics, 2005
AbstractThe phylogenetic relationships among the penguins have received little attention, despite their well‐known anatomy and the conspicuous nature of the group. Previous attempts have included datasets limited to few, mostly osteological characters, and one study was based on integumentary and breeding characters. We developed a morphological matrix
Sara Bertelli, Norberto P. Giannini
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AbstractThe phylogenetic relationships among the penguins have received little attention, despite their well‐known anatomy and the conspicuous nature of the group. Previous attempts have included datasets limited to few, mostly osteological characters, and one study was based on integumentary and breeding characters. We developed a morphological matrix
Sara Bertelli, Norberto P. Giannini
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Geobios, 2005
Abstract Modern penguins are typically small to medium-sized birds, and nearly all known modern specimens are smaller than the most archaic Paleogene relatives. Here we report an incomplete humerus, associated femur and tibiatarsus of a new spheniscid, Crossvallia unienwillia nov. gen.
Claudia P. Tambussi +3 more
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Abstract Modern penguins are typically small to medium-sized birds, and nearly all known modern specimens are smaller than the most archaic Paleogene relatives. Here we report an incomplete humerus, associated femur and tibiatarsus of a new spheniscid, Crossvallia unienwillia nov. gen.
Claudia P. Tambussi +3 more
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