...Yohami Fernández; Nicolas J. Dowdy; William E. Conner ABSTRACT Tiger moth species vary greatly in the number of clicks they produce and the resultant duty cycle. Signals with higher duty cycles are expected to more effectively interfere with bat sonar. However, little is known about the minimum...

...Louis Lazure; M. Brock Fenton SUMMARY There are two very different approaches to laryngeal echolocation in bats. Although most bats separate pulse and echo in time by signalling at low duty cycles (LDCs), almost 20% of species produce calls at high duty cycles (HDCs) and separate pulse and echo...

... except for certain patterns perceived as safe. Neither cycle length nor duty cycle predicted hatching response, except at extreme values where no hatching occurred; the highest energy stimuli elicited little or no hatching. Both vibration duration and inter-vibration interval strongly affected...

... power for swimming. Even though the relaxation of the muscle has slowed greatly, warm-acclimated fish swim with the same tail-beat frequencies and the same stimulus duty cycles at cold temperatures, thereby not affording the slow-relaxing muscle any extra time to relax. We hypothesize that considerable...

... © 1993 by Company of Biologists 1993 swimming fish muscle contractile properties electromyography EMG duty cycle short-horned sculpin Myoxocephalus scorpius Subcarangiform swimming involves the alternate shortening and lengthening of myotomes on either side of the body...