Alternative male spawning tactics and acoustic signals in the plainfin midshipman fish
Alternative male spawning tactics and acoustic signals in the plainfin midshipman fish
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平鳍见习官鱼的替代雄性产卵策略和声学信号
DOI：
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
A. Bass
中科院分区：
文献类型：
--
作者：
Rk Brantley;A. Bass
平鳍见习生Porichthys notatus有两个男性生殖变种，“I型”和“II型”，这是区分他们的物理特征。I型男性的身体质量是II型男性的8倍，相对于II型男性的声音（发声）肌肉质量是II型男性的6倍。相比之下，II型男性的睾丸比I型男性的睾丸大七倍。这项研究表明，特定形态的生殖模式，包括声学信号，为I型和II型男性。现场普查的巢表明，只有1型男性保持巢。第二类男性和女性短暂地出现在这些巢相互关联。在水族馆的红色视频和水听器记录显示，I型男性保持巢穴，并很容易发声。长时间的“嗡嗡声”和短时间的“咕噜声”序列分别在广告和竞争的背景下产生。第一类雄性会用嗡嗡声吸引雌性到它们的巢穴，成对产卵，然后独自守卫卵窝。相比之下，第二类男性既不声学求爱的女性，也没有保持可用的巢址，而是“潜行”或“卫星产卵”在巢的第一类男性。II型男性很少产生低幅度，短时间的呼噜声，在频谱，时间和幅度的特点，女性的呼噜声相似。II型男性似乎是专性的性寄生虫的巢建设，配偶呼叫，和鸡蛋守卫I型男性。因此，两种雄性变体的二形体和发声肌肉的特点，在平原鳍海军军官候补生的分歧，在他们的生殖策略和他们的声学信号的性质。
The plainfin midshipman Porichthys notatus has two male reproductive morphs, ‘Type I’ and ‘Type II’, which are distinguishable by their physical traits alone. Type I males are eight times larger in body mass than Type II males and have a six-fold larger relative sonic (vocal) muscle mass than Type II males. In contrast, the testicles of Type II males are seven times larger than those of Type I males. This study demonstrates morph-specific patterns of reproduction, including acoustic signals, for Type I and II males. Field censuses of nests showed that only Type 1 males maintained nests. Type II males and females transiently appeared in these nests in association with each other. Infra-red video and hydrophone recordings in aquaria showed that Type I males maintained nests and readily vocalized. Long-duration ‘hums’ and sequences of short-duration ‘grunts’ were produced during advertisement and agonistic contexts, respectively. Humming Type I males attracted females to their nests, pair-spawned, and then guarded egg clutches alone. By contrast, Type II males neither acoustically courted females nor maintained available nest sites, but rather ‘sneak-’ or ‘satellite-spawned’ at the nests of Type I males. Type II males infrequently produced low amplitude, short duration grunts that were similar in spectral, temporal and amplitude characteristics to the grunts of females. Type II males appear to be obligate sexual parasites of the nest-building, mate-calling, and egg-guarding Type I males. The dimorphic body and vocal muscle traits of the two male morphs in the plainfin midshipman are thus paralleled by a divergence in their reproductive tactics and the properties of their acoustic signals.
将社会和环境线索与两栖动物前脑的内分泌控制区域联系起来的感觉通路。
DOI：
10.1159/000114159
发表时间：
1993
期刊：
Brain, behavior and evolution
影响因子：
--
作者：
Wilczynski,W;Allison,JD;Marler,CA
通讯作者：
Marler,CA