Environmental Predictors of Diversity in Recent Planktonic Foraminifera as Recorded in Marine Sediments.
Environmental Predictors of Diversity in Recent Planktonic Foraminifera as Recorded in Marine Sediments.
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DOI：
10.1371/journal.pone.0165522
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发表时间：
2016
期刊：
影响因子：
3.7
通讯作者：
Purvis A
中科院分区：
文献类型：
--
作者：
Fenton IS;Pearson PN;Dunkley Jones T;Purvis A
全球多样性格局被认为是环境和历史因素共同作用的结果。本研究测试了一套生态和进化的假设，提出来解释全球变化，在当今的核心顶多样性的macroacetoprostonic有孔虫，一个分支，一个特殊的化石记录。在这一组中，海洋表面沉积物组合被认为是准确的，虽然百年至千年的时间平均，代表最近的多样性模式。为捕捉海洋温度、结构、生产力和季节性而选择的环境变量被用来模拟世界各海洋的一系列多样性措施。空间自回归模型表明，同样广泛的一套环境变量是重要的，在形成四个基本上独立的多样性措施（稀有物种丰富度，辛普森的均匀度，功能丰富度和平均进化年龄）。在所有四种多样性测量中，海洋表面温度解释了最大部分的多样性，但不是以生态学代谢理论预测的方式。垂直结构可以通过分层的强度而不是通过混合层的深度与增加的多样性联系起来。有有限的证据表明，季节性营业额解释多样性模式。有证据表明，在低纬度地区的功能冗余。深时稳定性的进化机制得到了不同的支持，而热带以外模型的证据相对较少。这些结果表明，浮游有孔虫的多样性模式不能用任何一个环境变量或提出的机制来解释，而是反映了多个过程的一致行动。
Global diversity patterns are thought to result from a combination of environmental and historical factors. This study tests the set of ecological and evolutionary hypotheses proposed to explain the global variation in present-day coretop diversity in the macroperforate planktonic foraminifera, a clade with an exceptional fossil record. Within this group, marine surface sediment assemblages are thought to represent an accurate, although centennial to millennial time-averaged, representation of recent diversity patterns. Environmental variables chosen to capture ocean temperature, structure, productivity and seasonality were used to model a range of diversity measures across the world’s oceans. Spatial autoregressive models showed that the same broad suite of environmental variables were important in shaping each of the four largely independent diversity measures (rarefied species richness, Simpson’s evenness, functional richness and mean evolutionary age). Sea-surface temperature explains the largest portion of diversity in all four diversity measures, but not in the way predicted by the metabolic theory of ecology. Vertical structure could be linked to increased diversity through the strength of stratification, but not through the depth of the mixed layer. There is limited evidence that seasonal turnover explains diversity patterns. There is evidence for functional redundancy in the low-latitude sites. The evolutionary mechanism of deep-time stability finds mixed support whilst there is relatively little evidence for an out-of-the-tropics model. These results suggest the diversity patterns of planktonic foraminifera cannot be explained by any one environmental variable or proposed mechanism, but instead reflect multiple processes acting in concert.
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影响因子：
2.9
作者：
BERGER, WH
通讯作者：
BERGER, WH
影响因子：
1.9
作者：
Al-Saboui, Nadia;Kucera, Michal;Schmidt, Daniela N.
通讯作者：
Schmidt, Daniela N.
影响因子：
1.9
作者：
Aurahs, Ralf;Treis, Yvonne;Kucera, Michal
通讯作者：
Kucera, Michal
DOI：
10.1111/j.1439-0469.2005.00311.x
发表时间：
2005-08-01
影响因子：
1.9
作者：
Brayard, A;Escarguel, G;Bucher, H
通讯作者：
Bucher, H
影响因子：
1.9
作者：
BE, AWH;BISHOP, JKB;GARDNER, WD
通讯作者：
GARDNER, WD