(Figure 1) Sea urchin and anemone abundance from sites at North Vulvano Island

R1-R3 = reference sites away from the CO2 vents, and hence representative of 'present day' pCO2 conditions. S1-S3 = sites with increasing proximity to the vents thus provided a...R1-R3为远离二氧化碳喷口（CO2 vents）的对照采样位点，因此可代表“当前”状态下的二氧化碳分压（pCO2）条件。S1-S3为距离喷口逐渐靠近的采样位点，由此可提供……