They would not change significantly only if there were certain human activities. With the land growing up, some terrestrial animals (such as insect larvae) immigrate, which leads to the changes of species composition and hierarchical diversity.
在较长时间尺度下，优势种Ⅱ未发生重大变化，表明河口潮间带湿地低、中、高潮滩发育完成后，各潮区优势种Ⅱ形成，有一定的稳定性，在无人为干扰下不会随时间发生较重大的改变；而伴随成陆过程，较为适应陆生的底栖动物(昆虫幼虫等)迁入，是造成种类组成、分类学多样性变化的主要因素。
参考来源 - 长江河口大型底栖动物及其优势种探讨·2,447,543篇论文数据，部分数据来源于NoteExpress
In nature Bettas subsist almost exclusively on insects and insect larvae.
在自然界斗鱼生存几乎完全以昆虫和昆虫幼虫。
They are mainly small fish for food, followed by aquatic insect larvae, and so on.
它们主要以小型鱼类为食，其次为水栖昆虫的幼虫等。
In fact, the animal uses its middle finger to find and harvest insect larvae in trees.
然而实际上这种动物的长中指是作为捕食昆虫的工具。 每当夜晚降临，它会潜伏在树中，用它长长的中指迅速敲击树干，通过倾听声音判别含有幼虫的部分。
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