Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Josef Weisgram"'
Autor:
Nikolay Natchev, Josef Weisgram, A. Rabanser, Dietmar Salaberger, Michaela Gumpenberger, Egon Heiss
Publikováno v:
Journal of Zoology. 280:156-162
The Spanish ribbed newt Pleurodeles waltl shows a bizzare defensive mechanism against predators. X-ray analysis before and after a simulated threat shows that this newt rotates its ribs anteriorly. The maximum measured angle to which the ribs moved w
Autor:
Christian Josef Beisser, Richard Gemel, Michaela Gumpenberger, Josef Weisgram, Peter Snelderwaard, Patrick Lemell
Publikováno v:
Amphibia-Reptilia. 31:97-107
The feeding apparatus of the fringed turtle Chelus fimbriatus (Schneider, 1783) was studied to elucidate the feeding mechanics of an aquatic feeding specialist that has never been investigated in detail before, regarding gross morphology. The skull a
Publikováno v:
Biotechnology & Biotechnological Equipment. 23:117-120
Modern digital high-speed film systems are able to capture sequences by extremely high frame rates – over 100 000 fr/s. The equipment costs for such systems are high but the operational costs are practically zero. An important advantage of digital
Publikováno v:
The Anatomical Record. :227-235
This study employed light microscopic (LM), scanning electron microscopic (SEM), and transmission electron microscopic (TEM) methods to provide detailed morphological information on the histological and ultrastructural features of the dorsal tongue e
Autor:
Christoph Lemell, Patrick Lemell, Robert Wochesländer, Michaela Gumpenberger, Josef Weisgram, Peter Snelderwaard
Publikováno v:
Journal of Experimental Biology. 205:1495-1506
SUMMARYThe kinematics of feeding on fish have been studied in the aquatic feeding specialist Chelus fimbriatus, the fringed turtle, to provide a basic description of complete feeding cycles. Anatomical findings supplement the kinematic results. High-
Publikováno v:
Tissue and Cell. 33:63-71
The ultrastructure of the dorsal lingual epithelium of the semi-aquatic West African mud turtle, Pelusios castaneus , is described. Our goal is to give additional information to previous studies of this species such as feeding pattern analysis and gr
Publikováno v:
Journal of Morphology. 244:127-135
Feeding mechanics of vertebrates depend on physical constraints of the surrounding media, water or air. Such functions are inseparably combined with form. The aim of this study is to show this linkage for the pleurodiran freshwater turtle Pelusios ca
Publikováno v:
Netherlands Journal of Zoology. 50:445-454
The kinematics of intraoral food transport of Testudo hermanni were investigated by radiographic video analysis. Small lead markers and contrastmedia marked food pellets were used to describe the movements of the hyolingual apparatus, the jaws, and t
Publikováno v:
Netherlands Journal of Zoology. 49:1-13
Feeding of Testudo hermanni boettgeri was studied by film analysis and anatomical examination of the musculature and skeleton elements involved. Film sequences were analysed to describe the movements of food item, neck, jaws, and tongue. The feeding
Publikováno v:
The Anatomical Record. 250:127-135
Background Turtles are adapted to different environments, such as freshwater, marine, and terrestrial habitats. Examination of histological and ultrastructural features of the dorsal lingual epithelium of the red-eared turtle, Trachemys scripta elega