Behavior of Japanese Tree Frog under Microgravity
نویسندگان
چکیده
منابع مشابه
Ionic currents in hair cells dissociated from frog semicircular canals after preconditioning under microgravity conditions.
The effects of microgravity on the biophysical properties of frog labyrinthine hair cells have been examined by analyzing calcium and potassium currents in isolated cells by the patch-clamp technique. The entire, anesthetized frog was exposed to vector-free gravity in a random positioning machine (RPM) and the functional modification induced on single hair cells, dissected from the crista ampul...
متن کامل[Spatial orientation under microgravity].
On Earth, humans are constantly exposed to the gravity. During head and body tilts, the otolith organs sense changes in head orientation with respect to the gravitational vertical. These graviceptors also transduce transient linear acceleration generated by translational head motion and centripetal acceleration during rotation about a distant axis. When individuals are rotated at a constant vel...
متن کاملModeling synchronized calling behavior of Japanese tree frogs.
We experimentally observed synchronized calling behavior of male Japanese tree frogs Hyla japonica; namely, while isolated single frogs called nearly periodically, a pair of interacting frogs called synchronously almost in antiphase or inphase. In this study, we propose two types of phase-oscillator models on different degrees of approximations, which can quantitatively explain the phase and fr...
متن کاملPopulation Ecology of the Pacific Tree Frog
We examined aspects of the population ecology of the Pacific Tree Frog (Hyla regilla) in a meadow of Corn Lily (Veratrum californicum) in the Sierra Nevada Mts. during July 2000. Using mark-recapture techniques we estimate the abundance of H. regilla to be 25±6.8 individuals which translates into a population density of 223.2±60.7 individuals per hectare. The sex ratio of the population of anim...
متن کاملReal-time studies on microalgae under microgravity.
Using remote sensing technique, we investigated real-time Nostoc sphaeroides Kütz (Cyanobacterium) in Closed System under microgravity by SHENZHOU-2 spacecraft in January 2001. The experiments had 1 g centrifuges in space for control and ground control group experiments were also carried out in the same equipments and under the same controlled condition. The data about the population growth of ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Biological Sciences in Space
سال: 1991
ISSN: 0914-9201,1349-967X
DOI: 10.2187/bss.5.185