Robillard Tony, Desutter-Grandcolas Laure
Muséum National d'Histoire Naturelle, Département Systématique et Evolution, USM601 MNHN and FRE2695 CNRS, Paris, France.
An Acad Bras Cienc. 2004 Jun;76(2):297-300. doi: 10.1590/s0001-37652004000200018. Epub 2004 Jun 8.
Evolution of dominant frequencies in songs of Eneopterinae crickets was studied with respect to phylogeny. Two characters are optimized on the tree: the first describes the frequency resulting from the vibration of the harp (Fda), and the second is due to the vibration of other tegminal areas (Fdb). Fda was found to be relatively stable through the subfamily. Its low ancestral state is replaced by a high Fda only once, resulting in high-frequency calling in [Cardiodactylus (Lebinthus-Agnotecous)]. A high Fdb component is added to the low ancestral Fda in Eneoptera guyanensis, resulting in frequency modulation. The onset of high Fd in this first subclade is accompanied by a high cladogenesis rate, which supports a hypothesis of adaptive radiation for high frequencies. The effectiveness of high-frequency calling is discussed in relation to the species behavior ecology.
关于系统发育，对螽斯科艾氏螽亚科鸣叫声的主频进化进行了研究。在树上优化了两个特征：第一个描述由琴弓振动产生的频率（Fda），第二个是由于其他翅脉区域的振动（Fdb）。发现Fda在整个亚科中相对稳定。其低祖先状态仅被一次高Fda所取代，导致[心形指螽属（莱氏螽属 - 隐螽属）]出现高频鸣叫。在圭亚那艾氏螽中，高Fdb成分被添加到低祖先Fda中，导致频率调制。在这个第一个亚分支中高Fd的出现伴随着高分支形成率，这支持了高频适应性辐射的假说。结合物种行为生态学讨论了高频鸣叫的有效性。
