Thermoregulatory Behavior ofAnaxyrus americanusin Response to Infection withBatrachochytrium dendrobatidis

Copeia ◽  
2016 ◽  
Vol 104 (3) ◽  
pp. 746-751 ◽  
Author(s):  
Stephanie A. Karavlan ◽  
Matthew D. Venesky
Keyword(s):  
Thermoregulatory Behavior

scholarly journals Thermoregulatory behavior and high thermal preference buffer impact of climate change in a Namib Desert lizard

Ecosphere ◽  
2017 ◽  
Vol 8 (12) ◽  
pp. e02033 ◽  
Author(s):  
Sebastian Kirchhof ◽  
Robyn S. Hetem ◽  
Hilary M. Lease ◽  
Donald B. Miles ◽  
Duncan Mitchell ◽  
...  
Keyword(s):  
Climate Change ◽  
Thermal Preference ◽  
Namib Desert ◽  
Thermoregulatory Behavior ◽  
Impact Of Climate Change ◽  
Desert Lizard

COEVOLUTION OF COLOR PATTERN AND THERMOREGULATORY BEHAVIOR IN POLYMORPHIC PYGMY GRASSHOPPERS TETRIX UNDULATA

Evolution ◽  
2002 ◽  
Vol 56 (2) ◽  
pp. 349 ◽  
Author(s):  
Anders Forsman ◽  
Karin Ringblom ◽  
Emilio Civantos ◽  
Jonas Ahnesjö
Keyword(s):  
Color Pattern ◽  
Thermoregulatory Behavior

Thermal sensitivity of reptilian melatonin rhythms: "cold" tuatara vs. "warm" skink

1989 ◽  
Vol 256 (5) ◽  
pp. R1160-R1163 ◽  
Author(s):  
B. T. Firth ◽  
M. B. Thompson ◽  
D. J. Kennaway ◽  
I. Belan
Keyword(s):  
Environmental Conditions ◽  
Thermal Sensitivity ◽  
Cold Temperature ◽  
Daily Rhythm ◽  
Threshold Temperature ◽  
Daily Rhythms ◽  
Thermoregulatory Behavior ◽  
Lower Amplitude ◽  
Sphenodon Punctatus ◽  
Reptilian Species

Daily rhythms in plasma melatonin levels were compared in two ecologically diverse reptilian species under natural environmental conditions in autumn. The nocturnal, cold temperature-adapted tuatara (Sphenodon punctatus) had a melatonin rhythm of much lower amplitude than did the diurnal desert-adapted sleepy lizard (Tiliqua rugosa). Experiments in controlled laboratory environments showed that, although both species are capable of attaining a comparable melatonin peak (approximately 750 pmol/l), the threshold temperature at which a significant daily rhythm occurs is approximately 15 degrees C in S. punctatus compared with approximately 25 degrees C in T. rugosa. This difference probably reflects the disparate thermoregulatory adaptations of the two species, S. punctatus favoring mean activity temperatures of 11.5 degrees C and T. rugosa, 32.5 degrees C. In ectotherms such as reptiles, therefore, species-typical thermoregulatory behavior may provide thermal cues that interact with photoperiod to provide the appropriate melatonin signal for the regulation of annual physiological cycles.

scholarly journals The study of thermoregulatory behavior of reptiles by of implantation temperature recorders

2016 ◽  
pp. 69-76
Author(s):  
Nikolay A. Litvinov ◽  
◽  
Maria K. Panova ◽  
Gennadiy A. Okulov ◽  
◽  
...  
Keyword(s):  
Thermoregulatory Behavior ◽  
Implantation Temperature

Brain regions expressing Fos during thermoregulatory behavior in rats

2003 ◽  
Vol 285 (5) ◽  
pp. R1116-R1123 ◽  
Author(s):  
Megumi Maruyama ◽  
Maiko Nishi ◽  
Masahiro Konishi ◽  
Yuko Takashige ◽  
Kei Nagashima ◽  
...  
Keyword(s):  
Escape Behavior ◽  
Immunohistochemical Analysis ◽  
Brain Regions ◽  
Active Group ◽  
Behavioral Thermoregulation ◽  
Preoptic Nucleus ◽  
Thermoregulatory Behavior ◽  
Temperature Changes ◽  
Dorsomedial Hypothalamus ◽  
Fos Protein

We surveyed the neural substrata for behavioral thermoregulation with immunohistochemical analysis of the expression of Fos protein in the rat brain. We used an operant system in which a rat exposed to heat (40°C) could get cold air (0°C) for 30 s when it moved into the reward area. Rats moved in and out of the reward area of the system periodically and thus maintained their body temperature at a normal level. In the rats performing heat escape behavior (active group), strong Fos immunoreactivity (Fos-IR) was found in the median preoptic nucleus (MnPO), parastrial nucleus (PS), and dorsomedial hypothalamus (DMH) compared with the controls. Another group of rats (passive group) were given the same temperature changes, regardless of the rat's movement, as those obtained by rats of the active group. Fos-IR in the MnPO was also seen in this group. The present results suggest that the PS and DMH play an important role in the genesis of thermoregulatory behavior, whereas the MnPO may be important for detecting changes in ambient and/or body temperatures.

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