Varanus exanthematicus
Patterns of cardiovascular and ventilatory response to elevated metabolic states in the lizard Varanus exanthematicus
... been shown to occur in the snake Python molurus (Overgaard et al., 1999), the lizard Varanus exanthematicus (Hartzler et al., 2000) and the alligator Alligator mississipiensis (M. Busk, J. Overgaard, J. W. ...
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Metabolic and blood gas dependence on digestive state in the Savannah monitor lizard Varanus exanthematicus: an assessment of the alkaline tide
... change in arterial pH. However, these reptiles rely on anaerobic metabolism to a large extent, so to test the generality of the postprandial metabolic and acid–base response in reptiles it is necessary to examine a ...
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Ventilation and pulmonary gas exchange during exercise in the savannah monitor lizard (Varanus exanthematicus)
... factors have been shown to be important limitations in many mammals during maximal exercise (Hammond et al. 1986; Hopkins et al. 1994; Wagner et al. 1989). We hypothesized that, in varanid lizards compared with mammals, ...
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Effect of temperature on chemosensitive locus coeruleus neurons of savannah monitor lizards, Varanus exanthematicus
... Juvenile savannah monitor lizards, Varanus exanthematicus (Bosc 1792) ( N =46; 62.8±6.09 g) of both sexes were housed in tanks with access to basking areas for thermoregulation (temperature range: 25 – ...
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Chronic electrical stimulation drives mitochondrial biogenesis in skeletal muscle of a lizard, Varanus exanthematicus
... Our control values for mitochondrial volume density in un- stimulated muscle are similar to those reported for hindlimb muscle of Cuban iguanas (2.94%; Cyclura nubila) (Conley et al., 1989) and from the ‘white’ portion ...
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Elevated intra abdominal pressure limits venous return during exercise in Varanus exanthematicus
... In Varanus exanthematicus the two renal portal veins (carrying blood from the hind limbs, tail and pubic region) fuse to form the post caval vein just before its entry into the right lobe of the ...
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Prey transport kinematics in Tupinambis teguixin and Varanus exanthematicus: conservation of feeding behavior in ‘chemosensory tongued’ lizards
... Fig. 1. (A) Phylogeny of lizards indicating the position of the study species (savannah monitor Varanus exanthematicus, Varanidae; gold tegu Tupinambis teguixin, Teiidae). Black bars indicate the presence ...
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Ventricular Haemodynamics in the Monitor Lizard Varanus Exanthematicus: Pulmonary and Systemic Pressure Separation
... Intracardiac pressure measurements show the ventricle to be functionally divided throughout systole into a high pressure pump cavum arteriosum: 'mean' pressure 89 cm H2O perfusing the sy[r] ...
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Estimation of shunting, systemic and pulmonary output of the heart, and regional blood flow distribution in unanaesthetized lizards (Varanus exanthematicus) by injection of radioactively labelled microspheres
... b Ventricular systemic output and ventricular pulmonary output In the two test animals the systemic distribution of two MS injected into the pulmonary venous return was almost identical [r] ...
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The mechanism of intracardiac shunting in the lizard Varanus exanthematicus
... This model is based on two main features of the functional anatomy of the heart of Varanus: the pressure separation during systole between lung and systemic circulation at the muscular r[r] ...
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Strain gauge measurement of mesokinetic movement in the lizard Varanus exanthematicus
... Feeding behaviour Strain recordings from along the mesokinetic joint were made during the strike, prey manipulation, inertial thrust and pharyngeal compression stages of feeding Smith, 1[r] ...
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Oxygen transfer during aerobic exercise in a varanid lizard Varanus mertensi is limited by the circulation
... A number of studies have searched for the component(s) that limit oxygen transfer and hence aerobic metabolism in exercising varanid lizards, a group that is considered to have one of the highest aerobic scopes amongst ...
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Postprandial exercise: prioritization or additivity of the metabolic responses?
... similar pattern was previously found in exercising postprandial pythons (Secor et al., 2000). This greater extraction efficiency is reflected in hypoventilation during both rest and exercise. How might this increased ...
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Ventilation and gas exchange in lizards during treadmill exercise
... for Varanus exanthematicus clearly conflict with the hypothesis of an ancestral conflict between ventilation and ...of Varanus exanthematicus to breathe effectively during locomotion is due to ...
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Diet and Habitat Requirements of the Philippine Endemic Frugivorous Monitor Lizard Varanus bitatawa
... The diet of V. bitatawa is similar to that of its sister species V. olivaceus, supplementing fruit with animals (Bennett, 2008) rather than the strict herbivory and folivory diet indicated by low levels of nitrogen ...
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Oxygen and Carbon Dioxide Transport Characteristics of the Blood of the Nile Monitor Lizard (Varanus Niloticus)
... OXYGEN AND CARBON DIOXIDE TRANSPORT CHARACTERISTICS OF THE BLOOD OF THE NILE MONITOR LIZARD VARANUS NILOTICUS BY JAMES W.. HICKS*, ATSUSHI ISHIMATSUf AND NORBERT HEISLER Abteilung Physio[r] ...
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Parasitic worms in reptiles from Tasmania and the islands of Bass Strait
... intensity in the hot dry inland areas of Australia in the larger species of Varanus monitor lizards which are absent from Tasmania and the Bass Strait islands, they are widespread in V v[r] ...
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Passive body movement and gas exchange in the frilled lizard (Chlamydosaurus kingii) and goanna (Varanus gouldii)
... The saccular lung in lizards is large and highly compliant compared with mammalian lungs, and these properties led us to question to what extent body movements could affect pulmonary gas exchange and the partial pressure ...
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Morphological variation of Ommatobrephus lobatum from Varanus bengalensis and Tropidonotus piscator in District Sidhi (M.P.) India
... Abstract: The aim of this paper is to increase the knowledge of the diversity of digenean parasites from rana tigrina collected in sidhi district madhya Pradesh, India. About 200 parasites representing Ommatobrephus ...
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Ventricular Outflow Dynamics in the Lizard, Varanus Niloticus: Responses to Hypoxia, Hypercarbia and Diving
... Blood flow and blood pressure have been measured in the right aorta and left pulmonary artery of the semi-aquatic lizard, Varanus niloticus, during normal breathing, during hypercarbic a[r] ...
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