Pentaradial eukaryote suggests expansion of suspension feeding in White Sea-aged Ediacaran communities.
Pentaradial eukaryote suggests expansion of suspension feeding in White Sea-aged Ediacaran communities.
复制标题
DOI：
10.1038/s41598-021-83452-1
复制
发表时间：
2021-02-18
影响因子：
4.6
通讯作者：
Rahman IA
中科院分区：
文献类型：
--
作者：
Cracknell K;García-Bellido DC;Gehling JG;Ankor MJ;Darroch SAF;Rahman IA
悬浮摄食是现代海洋中的一项关键生态战略，它在中上层和底栖系统之间提供了联系。因此，确定悬浮摄食何时开始广泛传播是生态学和进化的一个关键研究领域，对理解现代海洋生物圈的起源具有重要意义。在这里，我们使用三维建模和计算流体动力学，以建立神秘的埃迪卡拉真核生物Arkarua的摄食模式。通过与两个寒武纪棘皮动物，寒武和叠层石比较，我们表明，Arkarua周围的流型强烈支持其解释为一个被动的悬浮馈线。Arkarua被添加到埃迪卡拉纪底栖悬浮物饲养者的数量越来越多，这表明中上层和底栖生态系统之间的能量联系可能扩大在白色海组合（~ 558-550马）。因此，广泛悬浮喂养的出现可能在随后的生态创新和升级浪潮中发挥了重要作用，最终导致寒武纪大爆发。
Suspension feeding is a key ecological strategy in modern oceans that provides a link between pelagic and benthic systems. Establishing when suspension feeding first became widespread is thus a crucial research area in ecology and evolution, with implications for understanding the origins of the modern marine biosphere. Here, we use three-dimensional modelling and computational fluid dynamics to establish the feeding mode of the enigmatic Ediacaran pentaradial eukaryote Arkarua. Through comparisons with two Cambrian echinoderms, Cambraster and Stromatocystites, we show that flow patterns around Arkarua strongly support its interpretation as a passive suspension feeder. Arkarua is added to the growing number of Ediacaran benthic suspension feeders, suggesting that the energy link between pelagic and benthic ecosystems was likely expanding in the White Sea assemblage (~ 558–550 Ma). The advent of widespread suspension feeding could therefore have played an important role in the subsequent waves of ecological innovation and escalation that culminated with the Cambrian explosion.
登录
查看更多内容
影响因子：
4.6
作者：
Buatois LA;Almond J;Mángano MG;Jensen S;Germs GJB
通讯作者：
Germs GJB
影响因子：
1.4
作者：
Gehling, JG;Rigby, JK
通讯作者：
Rigby, JK
DOI：
10.1098/rspb.2018.1724
发表时间：
2018-12-01
影响因子：
4.7
作者：
Boag, Thomas H.;Stockey, Richard G.;Sperling, Erik A.
通讯作者：
Sperling, Erik A.
影响因子：
1.6
作者：
BERNARD, FR
通讯作者：
BERNARD, FR
影响因子：
4.5
作者：
de Goeij, Jasper M.;Moodley, Leon;van Duyl, Fleur C.
通讯作者：
van Duyl, Fleur C.