A two-signal, two-receiver signalling system: Snake mobbing in the Arabian babbler
Guggenberger, M.; Keynan, O.; Yovel, Y. · animal behavior and cognition · 2026-09-06 · 原文
DOI：10.64898/2026.08.25.747098作者：3 位
Mobbing is a collective antipredator behaviour in which animals approach and harass a threat while coordinating signals to alert conspecifics, recruit allies, or deter predators. In group-living Arabian babblers (Argya squamiceps), snake mobbing relies on two signals that differ in receivers: acoustic "zwick" calls inaudible to the snake and visual wing-lift displays perceived by both conspecifics and the snake, raising the question of whether each signal has one receiver or involves a more complex structure. We elicited snake-mobbing events with dummy vipers and recorded babbler groups using a synchronized acoustic camera enabling individual caller identification and postural analysis. We examined mob formation, the effect of group size on signalling, and the interplay between the two signal types. First signalling (recruitment) order was independent of sex, age and rank. Individual call rate decreased as group size increased, supporting the hypotheses of social buffering and predation risk dilution. Mobbing individuals responded faster (with signalling) to a joint visual-acoustic conspecific display and the onset of a visual display than to an acoustic-only signal. When coupled,
讲义
讲义·推断 依据「原文」自动生成的结构化摘要（推断），非原文表述；以原文为准。
1. 人话版
Mobbing is a collective antipredator behaviour in which animals approach and harass a threat while coordinating signals to alert conspecifics, recruit allies, or deter predators.
In group-living Arabian babblers (Argya squamiceps), snake mobbing relies on two signals that differ in receivers: acoustic "zwick" calls inaudible to the snake and visual wing-lift displays perceived by both conspecifics and the snake, raising the question of whether each signal has one receiver or involves a more complex structure.
2. 领域脉络
本文类目：animal behavior and cognition，属于其所在研究脉络的最新进展。
3. 机制拆解
We elicited snake-mobbing events with dummy vipers and recorded babbler groups using a synchronized acoustic camera enabling individual caller identification and postural analysis.
We examined mob formation, the effect of group size on signalling, and the interplay between the two signal types.
First signalling (recruitment) order was independent of sex, age and rank.
4. 证据与数字
摘要未给出量化结果——留意原文的实验与数据。
5. 反例与边界
Mobbing individuals responded faster (with signalling) to a joint visual-acoustic conspecific display and the onset of a visual display than to an acoustic-only signal.
6. 跨领域连接与意外收获
思考本文机制能否迁移到你正在跟进的问题。
7. 可复用方法
把本文机制与你手头项目对照，找一个两周内能验证的最小实验。
8. 术语表
精读时把不熟的术语记入此处，作为下次回忆的锚点。