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昆虫是动物界分布最广、种类最多的一个类群,是无脊椎动物中唯一有翅的一个类群,也是陆生生物中最早具有飞翔能力的一个类群,具有扩散和迁飞的习性,是新领地的最早占领者、生态系统的开拓者,在生态系统中占据重要地位。甲虫由于身体强烈几丁质化,与其它昆虫相比,体壁相当坚硬,提高了对环境的抗逆性,分布相当广泛,成为昆虫纲最具多样性的一个类群,在生态系统中起着非常重要的作用。它们主要占据生态系统的第二营养级和第三营养级,处于食物链的中间,扮演了初级消费者和次级消费者的角色,连接着生产者和高级消费者,在维持食物链的连续以及保证物质循环、能量流动的顺利进行中起着不可替代的作用。一些腐食性或者碎食性甲虫扮演了分解者的角色。此外,一些访花类甲虫以及取食孢子或种子的甲虫对于植物的传粉以及促进植物与昆虫的协同进化具有重要意义。
Insects are the most widely distributed and most diverse species in the animal kingdom. They are the only group of invertebrates with wings and the earliest group of terrestrial species capable of flying. They have the habit of spreading and migrating. They are the new territory Of the earliest occupiers, pioneers of ecosystems, occupy an important position in the ecosystem. Beetles, due to their strong body chitinizing, have rather rigid body walls compared to other insects, increasing their resistance to the environment and their distribution is quite extensive and have become one of the most diverse groups of insects, playing an important role in ecosystems Very important role. They occupy mainly the second and trophic levels of ecosystems in the middle of the food chain and act as primary and secondary consumers, connecting producers and senior consumers, while maintaining the continuity of the food chain and ensuring Material circulation, the smooth flow of energy plays an irreplaceable role. Some rotten or fragmented beetles act as decomposers. In addition, some species of flower beetles, as well as beetles that take spores or seeds, are important for plant pollination and for the synergistic evolution of plants and insects.