Species Diversity of Scott Reef and Rowley Shoals Ecosystems Compared to Ocean Niño Index

Coral data was downloaded for the Rowley Shoals (RS) and Scott Reef (SR) systems in Northwest Australia (Gilmour et al. 2021). Data on the monthly input to Ocean Nino Index was used to compute the 3 month mean of the temperature anomaly (NOAA). Both datasets were combined to align the time periods. Then a Simpson’s diversity index was computed using the functions available in the vegan R package to draw the potential relationships between the temperature anomaly and coral species diversity.

本研究下载了澳大利亚西北部罗利浅滩（Rowley Shoals, RS）与斯科特礁（Scott Reef, SR）海域的珊瑚数据，相关数据源自Gilmour等人2021年的研究。本研究采用美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）发布的月度厄尔尼诺指数（Ocean Nino Index）原始数据，计算得到温度距平的3个月平均值。将上述两套数据集进行合并以对齐时间区间。随后借助vegan R包中的内置函数计算辛普森多样性指数（Simpson’s diversity index），以探究温度距平与珊瑚物种多样性之间的潜在关联。