Ants move to improve:: colonies of Leptothorax albipennis emigrate whenever they find a superior nest site
Ants move to improve:: colonies of Leptothorax albipennis emigrate whenever they find a superior nest site
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DOI：
10.1016/j.anbehav.2003.09.004
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发表时间：
2004-05-01
期刊：
影响因子：
2.5
通讯作者：
Shere, HNS
中科院分区：
文献类型：
--
作者：
Dornhaus, A;Franks, NR;Shere, HNS
高品质的住宅可能是决定健康的主要因素。然而，当需要进行房屋狩猎时，动物可能经常面临速度与准确性的权衡，因此无法广泛调查其环境以找到最佳地点。我们发现，即使在蚁群已经在巢穴中定居之后，Leptothorax albipennis 也能够通过继续调查来纠正仓促决定中所犯的错误。每当新的巢址的巢穴质量有足够的改善时，蜂群就会从完好无损的未受干扰的巢穴转移到另一个巢穴地点。因此，侦察蚁必须能够判断并比较新的空巢地点与蚁群当前居住的地点的质量。串联奔跑招募的大量蚂蚁引发了从完整巢穴的迁徙。这一证据可以解释为什么少数侦察兵能够在没有立即需要的情况下激励整个殖民地移动。与从被毁坏的巢穴迁徙时的行为相比，蚂蚁更注重准确性而不是速度，因为它们在开始迁徙之前会等待大量侦察兵就某一地点达成一致。他们可以在不增加风险的情况下做到这一点，因为蜂群的其余部分仍然安全地留在旧巢中。 (C) 2004 年动物行为研究协会。由 Elsevier Ltd 出版。保留所有紧身衣。
A high-quality home can be a major factor determining fitness. However, when house hunting becomes necessary, animals might often face a speed-versus-accuracy trade-off and therefore be unable to survey their environment extensively for the optimum site. We found that the ant Leptothorax albipennis was able to correct errors made in such a hurried decision by continuing to survey even after a colony had settled in a nest site. Colonies moved from intact undisturbed nests to another nest site whenever the new nest site presented a sufficient improvement in nest quality. Thus, scout ants must be able to judge and compare the quality of the new, empty nest site with the one currently inhabited by the colony. Emigrations from intact nests were initiated by high numbers of ants recruited by tandem runs. This evidence may explain how a small number of scouts can motivate an entire colony to move when there is no immediate need to do so. Compared with their behaviour in emigrations from destroyed nests, the ants favoured even more strongly accuracy over speed, because they waited for a larger number of scouts to agree on one site before starting the emigration. They could do this without increased risk because the rest of the colony remained safely in the old nest. (C) 2004 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All tights reserved.