Hödl Walter
Zoologisches Institut der Universität Wien, Dr. Karl Lueger-Ring 1, A-1010, Wien, Austria.
Oecologia. 1977 Dec;28(4):351-363. doi: 10.1007/BF00345990.
The acoustic behaviour of 15 sympatric and synchronically breeding species of frogs in an area of floating meadows near Manaus (Brazil) was studied for a period of 8 months. The calling positions of each species can be identified with certain physiognomic types of vegetation.Sound analyses were used to compare the mating calls. The main variables are dominant frequency, call duration and pulse repetition rate. Each of the 15 species has a distinct mating call and differs from the acoustic behaviour of each other one. Eleven species are separated in their dominant frequency ranges within their specific calling sites. Species sharing emphasised frequency ranges within identical calling sites differ greatly in at least two temporal variables.The roles of calling position, spectral, and temporal features of mating calls in species recognition and premating reproductive isolation are discussed.
在巴西马瑙斯附近一片浮水草地地区，对15种同域且同步繁殖的蛙类的声学行为进行了为期8个月的研究。每个物种的鸣叫位置可通过特定的植被地貌类型来识别。运用声音分析来比较求偶叫声。主要变量包括主频、叫声持续时间和脉冲重复率。这15个物种中的每一个都有独特的求偶叫声，且彼此的声学行为有所不同。11个物种在其特定鸣叫地点的主频范围内相互分开。在相同鸣叫地点共享突出频率范围的物种在至少两个时间变量上有很大差异。文中讨论了鸣叫位置、频谱以及求偶叫声的时间特征在物种识别和交配前生殖隔离中的作用。
