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首页> 外文期刊>Marine ecology progress series >Climate-driven synchrony across tree, bivalve, and rockfish growth-increment chronologies of the northeast Pacific
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Climate-driven synchrony across tree, bivalve, and rockfish growth-increment chronologies of the northeast Pacific

机译：气候驱动的东北太平洋树木，双壳类和石鱼生长增量同步

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摘要

Interrelationships are analyzed among growth-increment chronologies of yelloweye rockfish Sebastes ruberrimus, splitnose rockfish Sebastes diploproa, and the bivalve species Pacific geoduck Panopea abrupta in the northeast Pacific. The chronologies are annually resolved, multi-decadal in length, and range in location from central California through northern British Columbia. In a principal components analysis, the first component explained 52 % of the variance in the dataset and separated chronologies from the northern half of the study area from those in the southern half. The northern chronologies significantly and positively correlate with seasonally averaged records of the Multivariate ENSO Index (MEI) and the Pacific Decadal Oscillation (PDO), while the southern chronologies negatively correlate with the same variables, especially during the winter and spring. Such an inverse growth regime is consistent with primary and secondary productivity patterns in the northeast Pacific. The second principal component accounted for 23 % of the variance in the dataset and captured a growth pattern associated with climatic variability in the spring and summer months. Both principal components derived from the marine chronologies relate to tree-ring chronologies in western North America, due to shared sensitivities to climatic variability. Interrelationships among these chronologies underscore the synchronous and pervasive impacts of climate on very diverse taxa and ecosystems in western North America.
机译：分析了黄眼石鱼Sebastes ruberrimus，裂鼻石鱼Sebastes diploproa和东北太平洋双壳类太平洋象拔蚌Panopea abrupta之间的相互关系。这些年表每年解析一次，历时数十年，并且位置范围从加利福尼亚中部到不列颠哥伦比亚省北部。在主成分分析中，第一个成分解释了数据集中52％的方差，并将年代从研究区域的北半部分与南半部分分开。北部的年代与多元ENSO指数（MEI）和太平洋年代际涛动（PDO）的季节平均记录显着正相关，而南部的年代与相同变量负相关，尤其是在冬季和春季。这种反向增长机制与东北太平洋的初级和次级生产力模式是一致的。第二主成分占数据集变异的23％，并捕获了与春季和夏季月份的气候变异性相关的增长模式。由于对气候变化的共同敏感性，从海洋年代学得出的两个主要成分都与北美西部的树木年轮年代学有关。这些年代之间的相互关系强调了气候对北美西部非常多样化的生物分类和生态系统的同步和普遍影响。

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