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科学通报  2014 

生物多样性丧失机制研究进展

DOI: 10.1360/972013-557, PP. 430-437

Keywords: 物种多样性,遗传多样性,生态系统多样性,多样性丧失,人类活动,保护基因组学

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Abstract:

生物多样性是地球上所有生命形式的总称,包括物种多样性、遗传多样性以及生态系统多样性.其中,物种多样性是核心,它既体现了生物与环境之间的复杂关系,又体现了生物资源的丰富性;物种的保护是生物多样性保护的主要内容.生态系统内的物质循环和能量流动是通过许多错综复杂的食物链和食物网完成的,而动物有机体在此过程中起关键作用.因此,物种多样性,特别是动物种类多样性将直接影响整个生态系统的功能.然而,随着世界人口的持续增长和经济全球化的快速发展,人类社会对地球上的生物多样性造成了愈来愈显著的影响,在这一过程中产生的诸如栖息地丧失与破碎化、过度利用、环境污染、气候变化等现象已对物种的生存产生了严重威胁.本文以生物多样性丧失为主线,回顾了近10多年来在该方向的主要进展,重点关注人类活动对物种多样性的影响,分析了生物多样性丧失的主要原因、特征及其危害,介绍了生物多样性研究的最新方法,并根据我国生物多样性的现状提出了未来生物多样性研究中需要重点关注的科学问题.

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