The dynamics of social cohesion in response to simulated intergroup conflict in banded mongooses.
The dynamics of social cohesion in response to simulated intergroup conflict in banded mongooses.
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DOI：
10.1002/ece3.8475
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发表时间：
2021-12
影响因子：
2.6
通讯作者：
Cant MA
中科院分区：
文献类型：
--
作者：
Preston EFR;Thompson FJ;Kyabulima S;Croft DP;Cant MA
群际冲突在自然界中普遍存在，并对社会行为的演变产生强烈影响。冲突凝聚力假说预测，暴露于群体间冲突应导致社会凝聚力的增加，以提高群体的成功或在未来的冲突中的复原力。有证据支持这一预测，从研究的亲和反应外群体的威胁，在一些动物社会。然而，大多数这些研究都集中在短时间内的行为变化（暴露于外群体后的几分钟和几小时），因此很少有人知道的动态和持久性的反应，以群体间冲突的长期。我们通过模拟野生带状猫鼬（Mungos mungo）的群体间遭遇并在5天内测量这些遭遇之前，期间和之后的社会行为来研究这个问题。我们还用非威胁性刺激进行了对照试验带状猫鼬立即作出反应，入侵刺激发声，分组在一起，并推进的刺激。在模拟入侵后的前5分钟内，我们看到修饰水平有所升高，但在暴露后一小时内，修饰率急剧下降，这与我们的预期相反。在随后的两天里，梳理率保持在这个低迷的速度。在对照试验中，未观察到梳理的初始增加，但与较长时间段相比，梳理下降。梳理随着时间的推移而变化，但与入侵期间的模式不同，这表明入侵的影响超出了实验设置。梳理反应的动态是短暂的，比我们最初预期的更复杂。我们认为这一意外的结果可能与该系统中侵略性群体间遭遇的频率有关。由于控制试验和实验试验是在一年中的不同时间进行的，因此需要今后的工作来确认这些相对模式是否可以复制。我们的研究结果表明，外群威胁对该物种社会凝聚力的影响是短暂的，但不能证实长期的变化。冲突凝聚力假说预测，暴露于群体间冲突应导致社会凝聚力的增加，以提高群体的成功或在未来的冲突中的复原力。我们通过在野生带状猫鼬（Mungos mungo）中模拟组间接触和对照试验，并在5天内测量这些接触之前，期间和之后的社会行为来研究这个问题。我们的研究结果表明，外群威胁对该物种社会凝聚力的影响是短暂的;长期影响无法得到证实。
Intergroup conflict is widespread in nature and is proposed to have strong impacts on the evolution of social behavior. The conflict–cohesion hypothesis predicts that exposure to intergroup conflict should lead to increased social cohesion to improve group success or resilience in future conflicts. There is evidence to support this prediction from studies of affiliative responses to outgroup threats in some animal societies. However, most of these studies have focused on behavioral changes over short time periods (minutes and hours after exposure to an outgroup), and hence very little is known about the dynamics and durability of responses to intergroup conflict over the longer term. We investigated this question by simulating intergroup encounters in wild banded mongooses (Mungos mungo) and measuring social behavior before, during, and after these encounters over a 5‐day period. We also ran control trials with non‐threatening stimuli. Banded mongooses reacted immediately to intrusion stimuli by vocalizing, grouping together, and advancing on the stimulus. In the first 5 min after simulated intrusions, we saw an elevation in grooming levels, but in the hour after exposure grooming rates declined sharply, contrary to our expectation. In the two subsequent days, grooming rates remained at this depressed rate. In control trials, the initial increase in grooming was not seen, but grooming declined compared to the longer‐term time periods. Grooming changed across time, but not in the same pattern as during intrusions, suggesting that intrusions had an impact above and beyond that of the experimental setup. The dynamics of grooming responses were short lived and more complex than we initially expected. We suggest this unexpected result may be linked to the frequency of aggressive intergroup encounters in this system. As control and experimental trials were run at different times of year, future work would be needed to confirm that these relative patterns are replicable. Our results indicate short‐lived impacts of outgroup threat on measures of social cohesion in this species, but cannot confirm longer‐term changes. The conflict–cohesion hypothesis predicts that exposure to intergroup conflict should lead to increased social cohesion to improve group success or resilience in future conflicts. We investigated this question by simulating intergroup encounters, and control trials, in wild banded mongooses (Mungos mungo) and measuring social behavior before, during, and after these encounters over a 5‐day period. Our results indicate short‐lived impacts of outgroup threat on measures of social cohesion in this species; longer‐term impacts could not be confirmed.
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影响因子：
3.7
作者：
Brooks J;Onishi E;Clark IR;Bohn M;Yamamoto S
通讯作者：
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影响因子：
1.3
作者：
Birch, G.;Cant, M. A.;Thompson, F. J.
通讯作者：
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DOI：
10.1073/pnas.2011142118
发表时间：
2021-03-16
影响因子：
11.1
作者：
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通讯作者：
Dyble, Mark
影响因子：
2.4
作者：
Cassidy, Kira A.;MacNulty, Daniel R.;Mech, L. David
通讯作者：
Mech, L. David
影响因子：
2.5
作者：
di Sorrentino, Eugenia Polizzi;Schino, Gabriele;Aureli, Filippo
通讯作者：
Aureli, Filippo