A 450 million years long latitudinal gradient in age‐dependent extinction,Ecology Letters

当前位置： X-MOL 学术 › Ecol. Lett. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

A 450 million years long latitudinal gradient in age‐dependent extinction
Ecology Letters ( IF 7.6 ) Pub Date : 2019-12-18 , DOI: 10.1111/ele.13441
Daniele Silvestro _{1,

2,

3} , Silvia Castiglione ₄ , Alessandro Mondanaro _{4,

5} , Carmela Serio ₄ , Marina Melchionna ₄ , Paolo Piras _{6,

7,

8} , Mirko Di Febbraro ₉ , Francesco Carotenuto ₄ , Lorenzo Rook ₅ , Pasquale Raia ₄

Affiliation

Leigh Van Valen famously stated that under constant conditions extinction probability is independent of species age. To test this 'law of constant extinction', we developed a new method using deep learning to infer age‐dependent extinction and analysed 450 myr of marine life across 21 invertebrate clades. We show that extinction rate significantly decreases with age in > 90% of the cases, indicating that most species died out soon after their appearance while those which survived experienced ever decreasing extinction risk. This age‐dependent extinction pattern is stronger towards the Equator and holds true when the potential effects of mass extinctions and taxonomic inflation are accounted for. These results suggest that the effect of biological interactions on age‐dependent extinction rate is more intense towards the tropics. We propose that the latitudinal diversity gradient and selection at the species level account for this exceptional, yet little recognised, macroevolutionary and macroecological pattern.

中文翻译：

一个4.5亿年的以年龄为基础的物种灭绝的纬度梯度

莱·范·瓦伦（Leigh Van Valen）著名地指出，在恒定条件下灭绝的概率与物种年龄无关。为了检验这种“持续灭绝法则”，我们开发了一种使用深度学习推断年龄依赖性灭绝的新方法，并分析了21个无脊椎动物进化枝中的450 myr海洋生物。我们显示，在超过90％的情况下，物种的灭绝率会随着年龄的增长而显着降低，这表明大多数物种在出现后很快就消失了，而存活下来的物种的灭绝风险却不断降低。这种与年龄有关的灭绝模式对赤道有更强的影响，当考虑到大规模灭绝和分类学通货膨胀的潜在影响时，这种情况仍然成立。这些结果表明，生物相互作用对依赖年龄的灭绝速率的影响在热带地区更为强烈。

更新日期：2019-12-19

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11