为了评估全球变暖对海洋环境中生态系统过程的影响,以周边纤毛虫群落为试验生物动物,在22℃(对照)的连续增温梯度下,研究了周边微生物定植动态的变化,25℃,28℃,31℃,和34℃。结果表明:(1)试验纤毛虫群落在22~28℃的水温条件下,在定殖过程中总体表现出相似的时间模式;(2)定殖动力学发生显著转变,在温度升高6℃的情况下,定殖曲线对麦克阿瑟-威尔逊模型方程的拟合度不合格,(3)试验水生生态系统的负荷或同化能力随着水温的升高而降低。因此,这项研究表明,持续变暖可能会显著驱动海洋生态系统中外周纤毛虫的定殖动态。
In order to evaluate the influence of global warming on the ecosystem processes in marine environments, the changes in colonization dynamics of periphytic microbiota were studied using the periphytic ciliate communities as the test organism fauna under a continuous warming gradient of 22℃ (control), 25℃, 28℃, 31℃, and 34 ℃. The results demonstrated that (1) the test ciliate communities generally showed a similar temporal pattern in within the colonization process under the water temperatures from 22 up to 28℃; however, (2) the colonization dynamics were significantly changed, and the fitness of colonization curves to the MacArthur-Wilson model equation was failed under the temperature increased by 6 ℃, and (3) the loading or assimilative capacity of the test aquatic ecosystem was decreased with the increase of water temperature. Therefore, this study suggests that continuous warming may significantly drive the colonization dynamics of periphytic ciliates in marine ecosystems.