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首页> 外文期刊>Oecologia >Habitat-related microgeographic variation of worker size and colony size in the ant Cataglyphis cursor
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Habitat-related microgeographic variation of worker size and colony size in the ant Cataglyphis cursor

机译：蚂蚁Cataglyphis光标中与生境相关的工人大小和菌落大小的微地理变化

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摘要

In social insects, colony size is a crucial life-history trait thought to have major implications for the evolution of social complexity, especially in relation to worker size polymorphism. Yet, little is known about how ecological factors can affect and constrain colony. Here, we explored the pattern of colony-size and worker-size variation in the Mediterranean ant Cataglyphis cursor, in relation to the type of habitats colonized (seaside vs. vineyard). The high level of the water table in the seaside habitat could constrain the depth of C. cursor underground nests and directly constrain its colony size. If worker size increases with colony size, as observed in other ant species, larger colony size and larger workers should be found in the vineyard populations. By comparing worker size among 16 populations, we verified that workers were significantly larger in the vineyard populations. We further determined that the morphological similarities detected among populations from the same habitat type were not due to geographic or genetic proximity. In two populations from each habitat type, the depth of nests was positively correlated with colony size and colony size with worker size. Using a type II regression approach, we further showed that the difference between the two populations in the depth of nest was sufficient to explain the difference in colony size, and similarly, variation in colony size was sufficient to explain variation in worker size. Our results suggest that a single proximate ecological factor could lead to significant variation in major life-history parameters.
机译：在社会昆虫中，菌落的大小是一种重要的生活史特征，被认为对社会复杂性的演变具有重要意义，特别是与工人大小的多态性有关。然而，关于生态因素如何影响和限制殖民地的知之甚少。在这里，我们探索了地中海蚂蚁Cataglyphis游标中菌落大小和工人大小变化的模式，与被栖息的栖息地类型（海边与葡萄园）有关。海边栖息地中较高的地下水位可能会限制C.curs地下巢穴的深度，并直接限制其群落大小。如在其他蚂蚁物种中观察到的那样，如果工人的大小随菌落的大小而增加，那么应该在葡萄园种群中发现更大的菌落和更大的工人。通过比较16个种群中的工人规模，我们验证了葡萄园种群中的工人数量显着增加。我们进一步确定，在来自相同栖息地类型的种群中检测到的形态相似性不是由于地理或遗传上的接近。在每种生境类型的两个种群中，巢的深度与菌落的大小呈正相关，菌落的大小与工人的大小呈正相关。使用II型回归方法，我们进一步表明，两个种群之间巢深的差异足以解释菌落大小的差异，同样，菌落尺寸的变化足以解释工人大小的差异。我们的结果表明，一个单一的近生态因素可能会导致主要生命历史参数发生重大变化。

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  • 来源
    《Oecologia》 |2007年第2期|211-218|共8页
  • 作者

    Johanna Clémencet; Claudie Doums;

  • 作者单位

    Laboratoire Fonctionnement et Evolution des Systèmes Ecologiques UMR 7625 Université Pierre et Marie Curie Bat A 7ème étage CC 237 7 quai Saint-Bernard 75252 Paris Cedex 05 France;

    Laboratoire Fonctionnement et Evolution des Systèmes Ecologiques UMR 7625 Université Pierre et Marie Curie Bat A 7ème étage CC 237 7 quai Saint-Bernard 75252 Paris Cedex 05 France;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Worker size; Colony size; Nest structure; Dependent colony foundation; Social insect;

    机译：工人的大小;殖民地的大小;巢的结构;从属的殖民地基础;社交昆虫;

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