...Andrea Gazzola; Alessandro Balestrieri; Giovanni Scribano; Andrea Fontana; Daniele Pellitteri-Rosa ABSTRACT Predation is a strong driver for the evolution of prey behaviour. To properly assess the actual risk of predation, anuran tadpoles mostly rely on water-borne chemical cues, and their ability...

... survivorship of tadpoles in the presence of predators when egg incubation (15 or 25°C) and tadpole acclimation temperature in microcosms (15 or 25°C) coincided at 15°C. Tadpoles that survived predation were smaller, and had faster burst swimming speeds than those kept in no-predator control conditions...

... bilayer. Brevinin-1SY transcripts were detected in tadpoles and were significantly increased during the later stages of development. Effects of environmental stress (24 h anoxia, 40% dehydration or 24 h frozen) on the mRNA levels of brevinin-1SY in the dorsal and ventral skin were examined. The brevinin...

... ) 27 11 2009 © 2010. 2010 locomotion organic acids pH performance swimming tadpoles Understanding the range of abiotic factors that limit the abundance and distribution of organisms is an important goal within the field of physiological ecology ( Garland and Carter, 1994...

...Hao Liu; Richard J. Wassersug; Keiji Kawachi ABSTRACT The hydrodynamics and undulating propulsion of tadpoles were studied using a newly developed two-dimensional computational fluid dynamics (CFD) modeling method. The mechanism of thrust generation associated with the flow patterns during swimming...

... beat frequency is approximately 10 Hz and, unlike for most aquatic vertebrates, is not correlated with specific swimming speed. At higher speeds, tail beat frequency and speed are positively correlated. Xenopus tadpoles show an increase in the maximum amplitude of the tail beat with increasing velocity...

...Richard J. Wassersug; Karin Von Seckendorf Hoff ABSTRACT The kinematics of swimming in tadpoles from four species of anurans (Rana catesbeiana Shaw, Rana septentrionalis Baird, Rana clamitans Latreille and Bufo americanus Holbrook) was studied using computer-assisted analysis of high speed (⩾200...

... are small. By contrast, body size markedly affected the aerial and the total of the larvae (see Fig. 2 ). At normoxic PO 2 , the small larvae depended more upon aerial than the large tadpoles. As the PO 2 declined, however, this relationship reversed and large larvae depended...