Visual signals or displacement activities? The function of visual displays in agonistic interactions in nocturnal tree frogs
Visual signals or displacement activities? The function of visual displays in agonistic interactions in nocturnal tree frogs
复制标题
视觉信号还是位移活动？
DOI：
10.1007/s10211-013-0160-6
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发表时间：
2014
期刊：
影响因子：
1.1
通讯作者：
F. Nomura
中科院分区：
文献类型：
--
作者：
Raíssa Furtado;F. Nomura
种内交流的效率直接影响到雄性生殖的成功。声音信号是夜间无尾两栖动物的主要通信形式。然而，视觉信号在社交互动中也很重要。我们在夜间活动的树蛙身上测试了这一假设，即开放环境有利于领土防御环境中的视觉信号。我们建立了三个处理组，每组8只雄性白纹伊蚊：(1)清晰的视觉，没有视觉障碍的镜子；(2)视觉障碍，遮盖一半的镜子；(3)对照，完全遮盖镜子。我们将行为反应分为定向/移动、视觉显示或声音信号。我们计算了每种处理中每种行为每分钟的平均排放率，并用单因素方差分析比较了不同处理之间的差异。方向和运动、视觉显示和广告呼叫在不同的治疗方法中没有差异。然而，视觉障碍治疗的攻击性叫声的发射明显高于清晰视觉治疗。控制组中攻击性电话的发生率最低。因此，对入侵者雄性的视觉识别足以让常驻的雄性调整它们发出的声音攻击性信号的频率，但不能调整视觉显示。因此，在夜间活动的树蛙的激动性相互作用中，识别入侵雄性并不是视觉信号进化所需的唯一特征。这表明，一些视觉显示可能不是直接用于交流，而是构成置换活动。
The efficiency of intraspecific communication directly affects male reproductive success. Acoustic signaling is the primary form of communication in nocturnal anurans. However, visual signaling can also be important in social interactions. We tested the hypothesis that open environments favor visual signals in a territorial defense context, in a nocturnal tree frog. We established three treatments each with eight males of Hypsiboas albomarginatus: (1) Clear Vision, with a mirror without visual obstacles; (2) Obstructed Vision, with half the mirror covered, and (3) Control, with mirror completely covered. We classified behavioral responses into orientation/locomotion, visual display, or acoustic signal. We calculated the mean emission rate per minute per behavior in each treatment and compared them among treatments using one-way ANOVA. Orientation and locomotion, visual display, and the advertisement call did not differ among treatments. However, the emission of aggressive calls in the Obstructed Vision treatment was significantly higher than in the Clear Vision treatment. The lowest rate of aggressive calls occurred in the Control. Thus, visual recognition of an intruder male was enough for resident males to adjust their rate of emission of acoustic aggressive signals, but not visual displays. Therefore, the recognition of the intruder male is not the only feature required for the evolution of visual signals in nocturnal tree frogs during agonistic interactions. This suggests that some visual displays may not be directly used for communication but rather constitute displacement activity.
DOI：
10.1073/pnas.0406407102
发表时间：
2005-02-15
影响因子：
11.1
作者：
Narins, PM;Grabul, DS;Hödl, W
通讯作者：
Hödl, W