Foraging time was short in the non-patch area because there was a necessary process for animal to adaptive to strange environment.

• 当植物群落中有斑块存在的情况下,随斑块面积的增加,牛主要在斑块区域采食,刚进入样地时在个体区域采食时间短,因为牛对新的采食环境有一个适应的过程。