摘要
扩散是生物个体之间相互远离的单线性运动,是许多物种在其生活史特定阶段的一个重要过程.当环境发生变化时,物种会通过扩散寻找更适合自身生存与繁殖的生境.文章对扩散的概念、研究方法及小型哺乳动物的扩散原因进行了综述;比较了小型哺乳动物扩散的5种行为机制;探讨了影响扩散的因素及其进化意义;对小型哺乳动物扩散未来的研究方向进行了展望.研究小型哺乳动物的扩散,有利于进一步了解物种对群落形成的影响,对探究物种进化和保护濒危物种也具有重要意义.
The diffusion was regarded as a single linear movement that moved far away from each other and was an important process for many species at a particular stage of their life cycles.When the environment changed,species would disperse to find a more suitable habitat for survival and reproduction.It was summarized the concept,research methods and the causes of the small mammal′s dispersion,compared five dispersal mechanisms,and discussed the influencing factors and evolutionary significance of dispersion.It was prospected for future research direction of small mammalian proliferation.It was suggested that comparative studies should be conducted to reveal the differences between species and the formation of communities,thereby it would provide basic information for species evolution and protection of endangered species.
作者
王艳妮
孙佼
杨文敏
WANG Yanni;SUN Jiao;YANG Wenmin(College of Chemistry and Life Sciences,Zhejiang Normal University,Jinhua 321004,China)
出处
《浙江师范大学学报（自然科学版）》
CAS
2020年第1期66-71,共6页
Journal of Zhejiang Normal University:Natural Sciences
基金
国家自然科学基金资助项目(31200323)
关键词
扩散行为
遗传进化
基因流
小型哺乳动物
dispersal behavior
genetic evolution
gene flow
small mammals
