scholarly journals The Green Bamboo Pit Viper, Trimeresurus stejnegeri, Discriminates Chemical Stimuli Among Anuran Species

2021 ◽  
Vol 40 (2) ◽  
Author(s):  
Chun-Kai Yang ◽  
Akira Mori
Keyword(s):  
Anuran Species ◽  
Chemical Stimuli

The advertisement call of Allobates niputidea (Anura: Aromobatidae)

Zootaxa ◽  
2019 ◽  
Vol 4656 (1) ◽  
pp. 196-200
Author(s):  
ANA MARÍA OSPINA-L. ◽  
DANIELA MURILLO-BEDOYA ◽  
DANIELA GARCÍA-COBOS ◽  
ZUANIA COLÓN-PIÑEIRO ◽  
ANDRÉS ACOSTA-GALVIS
Keyword(s):  
Acoustic Signal ◽  
Phylogenetic Relationships ◽  
Advertisement Call ◽  
Evolutionary Processes ◽  
Behavioral Interactions ◽  
Diagnostic Characters ◽  
Anuran Species

In anurans, acoustic signal traits are useful for understanding patterns of evolutionary processes, behavioral interactions, and providing diagnostic characters for inferring phylogenetic relationships and delimiting species (Cocroft & Ryan 1995). The advertisement call, which is the vocalization emitted to attract females or segregate conspecific males, is the most conspicuous and studied acoustic signal (Toledo et. al. 2014). However, it remains unknown for many anuran species (Köhler et al. 2017; Guerra et al. 2018). 

Sexual influence on the control of breathing

1983 ◽  
Vol 54 (4) ◽  
pp. 874-879 ◽  
Author(s):  
D. P. White ◽  
N. J. Douglas ◽  
C. K. Pickett ◽  
J. V. Weil ◽  
C. W. Zwillich
Keyword(s):  
Ventilatory Response ◽  
Minute Ventilation ◽  
Premenopausal Women ◽  
Co2 Production ◽  
Menstrual Phase ◽  
Co2 Partial Pressure ◽  
Ventilatory Responses ◽  
Chemical Stimuli ◽  
Low Levels ◽  
Normal Women

Previous investigation has demonstrated that progesterone, a hormone found in premenopausal women, is a ventilatory stimulant. However, fragmentary data suggest that normal women may have lower ventilatory responses to chemical stimuli than men, in whom progesterone is found at low levels. As male-female differences have not been carefully studied, we undertook a systematic comparison of resting ventilation and ventilatory responses to chemical stimuli in men and women. Resting ventilation was found to correlate closely with CO2 production in all subjects (r = 0.71, P less than 0.001), but women tended to have a greater minute ventilation per milliliter of CO2 produced (P less than 0.05) and consequently a lower CO2 partial pressure (PCO2) (men 35.1 +/- 0.5 Torr, women 33.2 +/- 0.5 Torr; P less than 0.02). Women were also found to have lower tidal volumes, even when corrected from body surface area (BSA), and greater respiratory frequency than comparable males. The hypoxic ventilatory response (HVR) quantitated by the shape parameter A was significantly greater in men [167 +/- 22 (SE)] than in women (109 +/- 13; P less than 0.05). In men this hypoxic response was found to correlate closely with O2 consumption (r = 0.75, P less than 0.001) but with no measure of size or metabolic rate in women. The hypercapnic ventilatory response, expressed as the slope of ventilation vs. PCO2, was also greater in men (2.30 +/- 0.23) than in women (1.58 +/- 0.19, P less than 0.05). Finally women tended to have higher ventilatory responses in the luteal than in the follicular menstrual phase, but this was significant only for HVR (P less than 0.05). Women, with relatively higher resting ventilation, have lower responses to hypoxia and hypercapnia.

scholarly journals TRPM8 voltage sensor mutants reveal a mechanism for integrating thermal and chemical stimuli

2007 ◽  
Vol 3 (3) ◽  
pp. 174-182 ◽  
Author(s):  
Thomas Voets ◽  
Grzegorz Owsianik ◽  
Annelies Janssens ◽  
Karel Talavera ◽  
Bernd Nilius
Keyword(s):  
Voltage Sensor ◽  
Chemical Stimuli
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