" Lee says. To answer that question, he produced several artificial choruses made up of two noise bands centered on the call frequencies—one in which the sound was unmodulated, meaning that it didn't vary in sound intensity; one in which the two noise bands were modulated...
The average 3-D, horizontal and vertical jump error angles for phonotactic approaches with a sound similar to the natural advertisement call (1.1 and 2.2 kHz frequency components) were 23掳, 19掳 and 12掳, respectively. 3-D jump error angle distributions for the 1.4 + 2.2 kHz, 1.0 kHz ...
Directional hearing in the gray tree frog Hyla versicolor: Eardrum vibrations and phonotaxis We used laser vibrometry to study the vibrational frequency response of the eardrum of female gray tree frogs for different positions of the sound source i... Morten Buhl Jrgensen,H.Carl Gerhardt - 《Jour...
Breeding occurs march to late July. When they breed it’s usually in ponds, near trees and sometimes in shrubs. The males make a sound that is a usual call like a peep that will last for about 2 seconds. As soon as the female accepts the male she will give him a nudge and he wil...
Tree frogs have different colors and markings on their skins. Their eyes are different, too. Some have green eyes, some gray. Some frogs' eyes are deep red, and some are bright red. The sounds they make in spring and summer are different, too. One frog makes a ...
Outside, there is the stirring of birds among the leaves, or the sound of men going forth70 to their work, or the sigh and sob71 of the wind coming down from the hills and wandering round the silent house, as though it feared to wake the sleepers73 and yet must needs call forth ...
The gray tree frog mates over a temperature range of at least 9 degrees C. Gravid females, tested at two different temperatures, preferred synthetic mating... Howard,C.,Gerhardt - 《Science》 被引量: 604发表: 1978年 Sound Pattern Recognition in Some North American Treefrogs (Anura: Hylidae)...
JJ Schwartz,VT Marshall - 《Bioacoustics-the International Journal of Animal Sound & Its Recording》 被引量: 51发表: 2006年 Interference risk and the function of dynamic shifts in calling in the gray treefrog (Hyla versicolor). Male gray treefrogs call to attract females tinder challenging acoust...