对应上文的algal population dynamic
所以zooplankton多的时候,grazing rates在不同的湖,分别是6.6%和114%。
说明zooplankton的作用有大有小,环境不同,作用不同。
Cladocerans had higher grazing rates than copepods, usually accounting for 80 percent of the community grazing rate.
These rates varied seasonally, reaching the lowest point in the winter and early spring.
Cladocerans和copepods的比较,目的是什么?
物种不同,rate的大小不同。
并且grazing rates会随季节变化,冬天和初春最低,这里的lowest和前文的什么对应?
Peak abundance,所以冬天和初春,和晚春夏天形成对比
Haneys thorough research provides convincing field evidence that grazers can exert significant pressure on phytoplankton population.
最后一句话对应本文第一句,也是在转折之后对于后半部分进行了总结,告诉我们grazers还是对于phytoplankton的数量有重要影响的。
第三篇:
Thomas Hardys impulses as a writer, all of which he indulged in his novels, were numerous and divergent, and they did not always work together in harmony.
TH作为一个作家的impulses的特点是什么?
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