Role of huge geometric circular structures in the reproduction of a marine pufferfish.

Role of huge geometric circular structures in the reproduction of a marine pufferfish.
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DOI:
10.1038/srep02106
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发表时间:
2013
期刊:
影响因子:
4.6
通讯作者:
Ito, Kimiaki
Ito, Kimiaki
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Kawase, Hiroshi;Okata, Yoji;Ito, Kimiaki

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我们报告说,雄性河豚(Torquigener sp.,Tetraodontidae)在海底建造大型几何圆形结构,在女性择偶中发挥重要作用。雄鸟以各种角度在径向挖谷,建造由径向排列的峰和谷包围的巢。此外,它们在巢穴中形成了由细沙颗粒组成的不规则图案。圆形结构不仅影响雌虫的择偶行为,而且还能在巢内聚集沙粒,这对雌虫的择偶行为有重要影响。奇怪的是,雄企鹅从不重复使用巢穴,总是花费巨大的建设成本建造一个新的圆形结构。这是因为山谷中可能没有足够的细沙粒供多个繁殖周期使用。
We report that male pufferfishes (Torquigener sp., Tetraodontidae) constructed large geometric circular structures on the seabed that played an important role in female mate choice. Males dug valleys at various angles in a radial direction, constructing nests surrounded by radially aligned peaks and valleys. Furthermore, they created irregular patterns in the nest comprising fine sand particles. The circular structure not only influences female mate choice but also functions to gather fine sand particles in nests, which are important in female mate choice. Strangely enough, the males never reuse the nest, always constructing a new circular structure at the huge cost of construction. This is because the valleys may not contain sufficient fine sand particles for multiple reproductive cycles.
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