• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nature >The rewards of restraint in the collective regulation of foraging by harvester ant colonies
【24h】

The rewards of restraint in the collective regulation of foraging by harvester ant colonies

机译：限制收割蚁群对觅食的集体调节所带来的收益

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

蚁群有时被当成超级生物，即它们在群落层rn面上会受到自然选择的影响。在对“红色收获rn蚊”(Pogonomyrmex barbatLJs)的集体行为与rn群落中生殖成功率之间的关系所做的一项长期rn(27年)研究中，Deborah Gordon发现，它们rn的确能表现出这种超级生物特性。在干旱时rn期，“收获蚁”的觅食往往不像它们在食物丰rn富时那么多：它们似乎是等待时机，直到状rn况改善。这种懂得克制的特征会传给它们的rn子群落，说明它的确可被看作是一个群落层rn面的特征。%Collective behaviour, arising from local interactions, allows groups to respond to changing conditions. Long-term studies have shown that the traits of individual mammals and birds are associated with their reproductive success, but little is known about the evolutionary ecology of collective behaviour in natural populations. An ant colony operates without central control, regulating its activity through a network of local interactions. This work shows that variation among harvester ant (Pogonomyrmex barba-tus) colonies in collective response to changing conditions8 is related to variation in colony lifetime reproductive success in the production of offspring colonies. Desiccation costs are high for harvester ants foraging in the desert. More successful colonies tend to forage less when conditions are dry, and show relatively stable foraging activity when conditions are more humid. Restraint from foraging does not compromise a colony's long-term survival; colonies that fail to forage at all on many days survive as long, over the colony's 20-30-year lifespan, as those that forage more regularly. Sensitivity to conditions in which to reduce foraging activity may be transmissible from parent to offspring colony. These results indicate that natural selection is shaping the collective behaviour that regulates foraging activity, and that the selection pressure, related to climate, may grow stronger if the current drought in their habitat persists.
机译：蚁群有时被当成超级生物，即它们在群落层rn面上会受到自然选择的影响。在对“红色收获rn蚊”(Pogonomyrmex barbatLJs)的集体行为与rn群落中生殖成功率之间的关系所做的一项长期rn(27年)研究中，Deborah Gordon发现，它们rn的确能表现出这种超级生物特性。在干旱时rn期，“收获蚁”的觅食往往不像它们在食物丰rn富时那么多：它们似乎是等待时机，直到状rn况改善。这种懂得克制的特征会传给它们的rn子群落，说明它的确可被看作是一个群落层rn面的特征。%Collective behaviour, arising from local interactions, allows groups to respond to changing conditions. Long-term studies have shown that the traits of individual mammals and birds are associated with their reproductive success, but little is known about the evolutionary ecology of collective behaviour in natural populations. An ant colony operates without central control, regulating its activity through a network of local interactions. This work shows that variation among harvester ant (Pogonomyrmex barba-tus) colonies in collective response to changing conditions8 is related to variation in colony lifetime reproductive success in the production of offspring colonies. Desiccation costs are high for harvester ants foraging in the desert. More successful colonies tend to forage less when conditions are dry, and show relatively stable foraging activity when conditions are more humid. Restraint from foraging does not compromise a colony's long-term survival; colonies that fail to forage at all on many days survive as long, over the colony's 20-30-year lifespan, as those that forage more regularly. Sensitivity to conditions in which to reduce foraging activity may be transmissible from parent to offspring colony. These results indicate that natural selection is shaping the collective behaviour that regulates foraging activity, and that the selection pressure, related to climate, may grow stronger if the current drought in their habitat persists.

著录项

  • 来源
    《Nature》 |2013年第7452期|91-93a2|共4页
  • 作者

    Deborah M. Gordon;

  • 作者单位

    Department of Biology, Stanford University, Stanford, California 94305-5020, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号