Thermal acclimation of locomotor performance in tadpoles and adults of the aquatic frog Xenopus laevis

2000 ◽  
Vol 170 (2) ◽  
pp. 117-124 ◽  
Author(s):  
R. S. Wilson ◽  
R. S. James ◽  
I. A. Johnston
Keyword(s):  
Xenopus Laevis ◽  
Thermal Acclimation ◽  
Locomotor Performance

Thermal acclimation of locomotor performance in anuran amphibians

1986 ◽  
Vol 64 (9) ◽  
pp. 1956-1960 ◽  
Author(s):  
Kirk Miller ◽  
Gregory M. Zoghby
Keyword(s):  
Xenopus Laevis ◽  
Environmental Temperature ◽  
Thermal Acclimation ◽  
Bufo Marinus ◽  
Effect Of Temperature ◽  
Locomotor Performance ◽  
Temperature Changes ◽  
Leopard Frogs ◽  
Anuran Species ◽  
Improved Performance

Acclimation is the principal strategy employed by amphibians in coping with environmental temperature changes, yet acclimation has only rarely been shown to affect aspects of whole-organism function in amphibians. We examined the influence of a period of acclimation on the effect of temperature on locomotion in three anuran species. Giant toads, Bufo marinus, moved most quickly at 22 °C, and acclimation to that temperature further improved performance (inverse compensation). Leopard frogs, Ranapipiens, also moved most quickly at 22 °C, but acclimation to 12 °C improved locomotor performance at that temperature (positive compensation). Clawed frogs, Xenopus laevis, in contrast, moved most quickly at 12 °C and acclimation did not affect locomotor performance in this species (no compensation). Thus, while acclimation clearly affects locomotor performance in some anuran species, the direction of change differs among them.

Effects of temperature and food availability on selected body temperature and locomotor performance of Plestiodon (Eumeces) chinensis (Scincidae)

2010 ◽  
Vol 60 (3) ◽  
pp. 337-347 ◽  
Author(s):  
Bao-Jun Sun ◽  
Wei-Guo Du ◽  
Lin Shu
Keyword(s):  
Body Temperature ◽  
Thermal Treatment ◽  
Food Availability ◽  
Thermal Environment ◽  
Thermal Acclimation ◽  
Spatial Variations ◽  
Locomotor Performance ◽  
Temporal And Spatial Variations ◽  
Temporal And Spatial ◽  
Selected Body Temperature

AbstractRemarkable temporal and spatial variations occur on selected body temperature (Tsel) and locomotor performance for Plestiodon (Eumeces) chinensis, commonly known as Chinese skinks. However, the significance of these variations remains elusive. This study focuses on the effects of thermal environment and food availability on P. chinensis's Tsel and locomotor performance. The duration of thermal treatment (4h and 8h) displayed significant effects on Tsel, additionally the effects of thermal treatment were also dependent on food-availability. There was no significant variation in skink's Tsel under diverse thermal treatments when sufficient food was available. However, with insufficient food source, the Tsel decreased with decrease in the duration of thermal treatment. Thermal acclimation also affected locomotor performance of P. chinensis, as the 8h thermal treatment enhanced their locomotor performance. However, food availability alone had no significant impact on the locomotor performance. Therefore, the combination of thermal acclimation and food availability could cause variations in Tsel and locomotor performance of skinks, suggesting that thermal environment and food condition in nature are important factors involved in temporal and spatial variations for Tsel and locomotor performance.

scholarly journals Rapid Shifts in the Temperature Dependence of Locomotor Performance in an Invasive Frog, Xenopus laevis, Implications for Conservation

2020 ◽  
Vol 60 (2) ◽  
pp. 456-466 ◽  
Author(s):  
Laurie Araspin ◽  
Anna Serra Martinez ◽  
Carla Wagener ◽  
Julien Courant ◽  
Vivien Louppe ◽  
...  
Keyword(s):  
Xenopus Laevis ◽  
Prey Capture ◽  
Population Expansion ◽  
Global Scale ◽  
Abiotic Factor ◽  
Locomotor Performance ◽  
Invasive Population ◽  
Distribution Models ◽  
Thermal Dependence ◽  
Two Populations

Abstract Temperature is a critical abiotic factor impacting all aspects of the biology of organisms, especially in ectotherms. As such, it is an important determinant of the potential invasive ability of organisms and may limit population expansion unless organisms can physiologically respond to changes in temperature either through plasticity or by adapting to their novel environment. Here, we studied the African clawed frog, Xenopus laevis, which has become invasive on a global scale. We compared adults from an invasive population of western France with individuals from two populations in the native range in South Africa. We measured the thermal dependence of locomotor performance in adults given its relevance to dispersal, predator escape, and prey capture. Our results show significant differences in the limits of the 80% performance breadth interval for endurance with the French population showing a left shift in its limits congruent with the colder climate experienced in France. The French invasive population was introduced only about 40 years ago suggesting a rapid shift in the thermal physiology. Given that all individuals were acclimated under laboratory conditions at 23°C for 2 months this suggests that the invasive frogs have adapted to their new environment. These data may allow the refinement of physiologically informed species distribution models permitting better estimates of future ranges at risk of invasion.

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