1.Perhaps the fact that many of these first studies considered only algae(水藻)of a size that could be collected in a net (net phytoplankton), a practice that overlooked the smaller phytoplankton(浮游植物群落)that we now know grazers are most likely to feed on, led to a de-emphasis of the role of grazers in subsequent research.

也学是早期的许多研究只考虑了一种大小足以被浮游植物网采集的水藻，而这种做法忽略了更小的浮游植物-现在我们知道食草动物很可能以它为生。这些事实和做法导致了在后面的研究中对食草动物的忽视。

2.The converse observation, of the absence of grazers(食草动物)in areas of high phytoPlankton(浮游植物群落)concentration, led Hardy to propose his principle of animal exclusion, which hypothesized that phytoplankton produced a repellent(驱虫剂)that excluded grazers from regions of high phytoplankton concentration.

相反的观察，即在浮游植物群落高度集中的地方缺乏食草动物的现象，使哈笛提出了他的"动物排除"理论，该理论假设浮游植物群落能产生一种驱虫剂赶走在浮游植物高度集中区域内的食草动物。