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Keywords: Lizard
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Journal Articles
J Exp Biol (2020) 223 (12): jeb221630.
Published: 23 June 2020
... proteins, which are transported and deposited at the ovary. VTG may, however, serve non-nutritive anti-oxidant functions, a hypothesis supported by empirical work on aging and other life-history transitions in several taxa. We test this hypothesis in female painted dragon lizards ( Ctenophorus pictus...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (5): jeb188805.
Published: 1 March 2019
... architecture (e.g. muscle fiber length and cross-sectional area). Here, we investigate whether muscle architecture (mass, fiber length and physiological cross-sectional area), hindlimb segment dimensions, or both, explain variation in sprint speed across 14 species of Anolis lizards. Moreover, we test whether...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (4): jeb188359.
Published: 15 February 2019
... is frequently activated, e.g. persistent stressors that cause injury, it may be maladaptive to suppress immune function after early-life stress. Thus, the relationship between early-life stress and immune function may vary with population-level historical stressor exposure. We collected gravid fence lizards...
Journal Articles
J Exp Biol (2018) 221 (8): jeb176867.
Published: 23 April 2018
..., maintenance and production. We manipulated individual investment in performance by training Anolis carolinensis lizards for endurance or sprinting ability. We then measured energetic expenditure both at rest and immediately following exercise to test whether such training alters the maintenance and production...
Includes: Supplementary data
Journal Articles
J Exp Biol (2016) 219 (22): 3649–3655.
Published: 15 November 2016
... to locomotor biomechanics in non-human vertebrates. The secondarily diurnal gecko, Rhoptropus afer , shows changes in speed and posture in low light conditions. Visual acuity Locomotion Performance Kinematics Vision Gekkonidae Desert Fog Stability Lizard Compared with its behaviour...
Journal Articles
J Exp Biol (2016) 219 (21): 3473–3479.
Published: 1 November 2016
...Philipp Comanns; Philip C. Withers; Falk J. Esser; Werner Baumgartner ABSTRACT Moisture-harvesting lizards, such as the Australian thorny devil, Moloch horridus , have the remarkable ability to inhabit arid regions. Special skin structures, comprising a micro-structured surface with capillary...
Journal Articles
J Exp Biol (2016) 219 (16): 2416–2422.
Published: 15 August 2016
...Gary Gillis; Timothy E. Higham ABSTRACT Autotomy has evolved in many animal lineages as a means of predator escape, and involves the voluntary shedding of body parts. In vertebrates, caudal autotomy (or tail shedding) is the most common form, and it is particularly widespread in lizards. Here, we...
Journal Articles
J Exp Biol (2016) 219 (14): 2098–2102.
Published: 15 July 2016
...Paul L. Else ABSTRACT The thermal dependence (0–40°C) of Na + flux in isolated liver cells of three endotherms (mice, rat and rabbit) was compared with that of ectotherms in the form of a thermally tolerant amphibian (cane toad), a cold-water fish (rainbow trout) and a thermophilic reptile (lizard...
Journal Articles
J Exp Biol (2016) 219 (11): 1603–1607.
Published: 1 June 2016
... by treating individuals separately to reduce pseudoreplication, our approach resulted in high statistical power despite small sample sizes. We fitted lizard adhesive performance and bite force data to the Weibull distribution and found that it closely estimated maximum performance in both cases, illustrating...
Journal Articles
J Exp Biol (2016) 219 (3): 404–411.
Published: 1 February 2016
... Summary: During breathing, rotation of the ribs in green iguanas is nearly hinge-like, despite costal joints that permit more complex motions. Squamata Lizard Breathing Biomechanics X-ray Costovertebral joint Sternocostal joint Sternal rib Vertebral rib Breathing may seem like...
Includes: Supplementary data
Journal Articles
J Exp Biol (2015) 218 (6): 931–939.
Published: 15 March 2015
... depresses metabolic rate in blotched blue tongue lizards and limits exercise ability. Despite the developing fetuses compressing the lungs, gas diffusion ability was not altered. Ventilation Breathing pattern Oxygen consumption Gestation Lizard Reptile Pulmonary gas exchange Lung diffusion...
Journal Articles
J Exp Biol (2015) 218 (3): 440–450.
Published: 1 February 2015
... to enhance subsurface performance. Using X-ray imaging, we performed the first kinematic investigation of the subsurface locomotion of the long, slender shovel-nosed snake ( Chionactis occipitalis ) and compared its biomechanics with those of the shorter, limbed sandfish lizard ( Scincus scincus...
Includes: Supplementary data
Journal Articles
J Exp Biol (2014) 217 (5): 735–742.
Published: 1 March 2014
... with sprawled postures is unknown. We measured the limb lengths of seven species of lizard and their single-limb three-dimensional ground reaction forces during high-speed running. We found that all species relied on the hindlimb for producing accelerative forces. Braking forces were forelimb dominated in four...
Journal Articles
J Exp Biol (2013) 216 (22): 4290–4298.
Published: 15 November 2013
... lizard classically regarded as monomorphic when considering data from the visible region of the spectrum. Our results indicate a widespread presence of UV elements across the entire body of the lizards and these patterns vary significantly in intensity, size and frequency between sexes. These results...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (6): 1025–1030.
Published: 15 March 2013
...Anthony Herrel; Krystal A. Tolley; G. John Measey; Jessica M. da Silva; Daniel F. Potgieter; Elodie Boller; Renaud Boistel; Bieke Vanhooydonck SUMMARY Chameleons are highly specialized and mostly arboreal lizards characterized by a suite of derived characters. The grasping feet and tail are thought...
Journal Articles
J Exp Biol (2012) 215 (13): 2288–2300.
Published: 1 July 2012
...Kathleen L. Foster; Timothy E. Higham SUMMARY The range of inclines and perch diameters in arboreal habitats poses a number of functional challenges for locomotion. To effectively overcome these challenges, arboreal lizards execute complex locomotor behaviors involving both the forelimbs...
Journal Articles
J Exp Biol (2012) 215 (5): 731–735.
Published: 1 March 2012
... studied temperature and associated activity effects in male and female Australian painted dragon lizards ( Ctenophorus pictus ) by allowing the lizards to bask for 4 h versus 12 h, and scoring their associated activity (inactive versus active basking and foraging). As predicted, long-basking lizards...
Journal Articles
J Exp Biol (2012) 215 (5): 774–784.
Published: 1 March 2012
...Maria Jose Tulli; Virginia Abdala; Felix B. Cruz SUMMARY The variation in substrate structure is one of the most important determinants of the locomotor abilities of lizards. Lizards are found across a range of habitats, from large rocks to loose sand, each of them with conflicting mechanical...
Includes: Supplementary data
Journal Articles
J Exp Biol (2012) 215 (3): 435–441.
Published: 1 February 2012
...Timothy E. Higham; Anthony P. Russell SUMMARY Autotomy (voluntary loss of an appendage) is common among diverse groups of vertebrates and invertebrates, and much attention has been given to ecological and developmental aspects of tail autotomy in lizards. Although most studies have focused...
Journal Articles
J Exp Biol (2012) 215 (3): 442–453.
Published: 1 February 2012
..., and the relationship between burst locomotor kinematics and locomotor performance in a small terrestrial lizard ( Sceloporus woodi ). We focus only on stance phase joint angular kinematics. Sceloporus woodi exhibited considerable variation in hindlimb kinematics and performance across the first three strides of burst...
Includes: Supplementary data