The life history of harvester ant colonies.

IF 5.4 2区 生物学 Q1 BIOLOGY
Deborah M Gordon
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引用次数: 0

Abstract

A long-term study of a population of desert seed-eating ant colonies of the red harvester ant, Pogonomyrmex barbatus, in New Mexico, USA, shows that a colony can live for 20-30 years-the lifespan of its founding queen. A colony's collective behaviour shifts in the course of its life history. These changes, generated by social interactions within the colony, adjust the behaviour of the colony as it grows older and larger, in response to its environment and neighbouring colonies. A worker lives only a year and performs different tasks as it ages, in response to interactions with other workers and the local surroundings. A colony's behaviour changes-becoming more stable and consistent-as the colony grows older, with more ants to participate in social interactions. A neighbourhood of colonies, often of similar age, grows old together. Colonies differ in how they regulate foraging behaviour collectively to manage water loss. These differences influence how foragers of neighbouring colonies partition foraging area. In a harsh but stable environment, the gradual behavioural shifts over a colony's lifespan allow it to adjust to slow changes in the composition of its neighbourhood and in environmental conditions.This article is part of the discussion meeting issue 'Understanding age and society using natural populations'.

收割蚁群的生活史。
对美国新墨西哥州一个沙漠食种蚁群--红收割蚁(Pogonomyrmex barbatus)--的长期研究表明,一个蚁群的寿命可达 20-30 年--这是其创始蚁后的寿命。蚁群的集体行为会在其生命历程中发生变化。这些变化是由蜂群内部的社会互动产生的,随着年龄的增长和规模的扩大,蜂群的行为也会随环境和邻近蜂群的变化而调整。一只工蚁的寿命只有一年,随着年龄的增长,它会执行不同的任务,以应对与其他工蚁和当地环境的互动。随着蚁群年龄的增长,有更多的蚂蚁参与社会互动,蚁群的行为也会发生变化,变得更加稳定和一致。蚁群的邻近地区通常蚁龄相近,它们会一起变老。蚁群在集体调节觅食行为以控制水分流失方面存在差异。这些差异会影响相邻蚁群的觅食者如何划分觅食区域。在一个严酷但稳定的环境中,蚁群在整个生命周期中逐渐发生的行为变化使其能够适应邻近蚁群组成和环境条件的缓慢变化。
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来源期刊
CiteScore
11.80
自引率
1.60%
发文量
365
审稿时长
3 months
期刊介绍: The journal publishes topics across the life sciences. As long as the core subject lies within the biological sciences, some issues may also include content crossing into other areas such as the physical sciences, social sciences, biophysics, policy, economics etc. Issues generally sit within four broad areas (although many issues sit across these areas): Organismal, environmental and evolutionary biology Neuroscience and cognition Cellular, molecular and developmental biology Health and disease.
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