High-latitude settings promote extreme longevity in fossil marine bivalves
High-latitude settings promote extreme longevity in fossil marine bivalves
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高纬度环境促进了海洋双壳类化石的极端长寿
DOI：
10.1017/pab.2017.5
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发表时间：
2017
期刊：
影响因子：
2.7
通讯作者：
Emily G. Artruc
中科院分区：
文献类型：
--
作者：
David K. Moss;L. Ivany;R. Silver;J. Schue;Emily G. Artruc
抽象的。
今天地球上最长寿的非殖民动物之一是一种双壳类动物，其寿命超过500年，生活在寒冷，季节性食物有限的环境中。在现代环境中，很难将温度和食物供应对寿命的影响分开，因为这两个条件是协变的。化石动物的寿命可以提供对环境在极端长寿进化中的作用的见解，这是现代分类群研究所不能提供的。我们研究双壳类从独特的，nonanalogue，温暖和高纬度的设置，南极洲西摩岛，在晚白垩世和古近纪的温室间隔。尽管有显著的取样限制，我们发现，所有11种研究都是缓慢增长和长寿，特别是当与现代双壳类生活在类似的温度设置。虽然凉爽的温度一直被认为是促进长寿的关键因素，但我们的研究结果表明，高纬度地区的低光照和季节性光照制度对热量限制起着重要作用。我们的生活史数据，跨越三个不同的家庭，强调长寿是由环境，而不仅仅是系统发育或生态因素。这些发现对现代和古代纬度多样性梯度都有影响，因为缓慢生长和长寿的共同相关性是延迟繁殖，这限制了进化变化的潜力。虽然现代双壳类的寿命已经得到了很好的研究，但化石双壳类的寿命数据却很少，而且主要是轶事。来自远古时期的生物生活史不仅可以阐明对寿命的控制，而且可以为我们对宏观进化模式的理解增添新的维度。
Abstract.
One of the longest-lived, noncolonial animals on the planet today is a bivalve that attains life spans in excess of 500 years and lives in a cold, seasonally food-limited setting. Separating the influence of temperature and food availability on life span in modern settings is difficult, as these two conditions covary. The life spans of fossil animals can provide insights into the role of environment in the evolution of extreme longevity that are not available from studies of modern taxa. We examine bivalves from the unique, nonanalogue, warm and high-latitude setting of Seymour Island, Antarctica, during the greenhouse intervals of the Late Cretaceous and Paleogene. Despite significant sampling limitations, we find that all 11 species examined are both slow growing and long-lived, especially when compared with modern bivalves living in similar temperature settings. While cool temperatures have long been thought to be a key factor in promoting longevity, our findings suggest an important role for caloric restriction brought about by the low and seasonal light regime of the high latitudes. Our life-history data, spanning three different families, emphasize that longevity is in part governed by environmental rather than solely phylogenetic or ecologic factors. Such findings have implications for both modern and ancient latitudinal diversity gradients, as a common correlate of slow growth and long life is delayed reproduction, which limits the potential for evolutionary change. While life spans of modern bivalves are well studied, data on life spans of fossil bivalves are sparse and largely anecdotal. Life histories of organisms from deep time can not only elucidate the controls on life span but also add a new dimension to our understanding of macroevolutionary patterns.
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影响因子：
29
作者：
Brandhorst S;Choi IY;Wei M;Cheng CW;Sedrakyan S;Navarrete G;Dubeau L;Yap LP;Park R;Vinciguerra M;Di Biase S;Mirzaei H;Mirisola MG;Childress P;Ji L;Groshen S;Penna F;Odetti P;Perin L;Conti PS;Ikeno Y;Kennedy BK;Cohen P;Morgan TE;Dorff TB;Longo VD
通讯作者：
Longo VD
对氧化应激的抵抗力与淡水珍珠贻贝、Margaritifera margaritifera 或三种 Unionid 物种的超长寿命无关
影响因子：
2.4
作者：
Ridgway I
通讯作者：
Ridgway I
DOI：
10.1093/gerona/glq172
发表时间：
2011-02
期刊：
The journals of gerontology. Series A, Biological sciences and medical sciences
影响因子：
--
作者：
I. Ridgway;Christopher A. Richardson;Steven N. Austad
通讯作者：
I. Ridgway;Christopher A. Richardson;Steven N. Austad
影响因子：
5.8
作者：
D. Kemp;S. Robinson;J. Crame;J. Francis;J. Ineson;R. Whittle;V. Bowman;C. O’Brien
通讯作者：
D. Kemp;S. Robinson;J. Crame;J. Francis;J. Ineson;R. Whittle;V. Bowman;C. O’Brien
影响因子：
3.3
作者：
Abele, Doris;Strahl, Julia;Philipp, Eva E. R.
通讯作者：
Philipp, Eva E. R.