Wilson John R U, Dormontt Eleanor E, Prentis Peter J, Lowe Andrew J, Richardson David M
Centre for Invasion Biology, Department of Botany and Zoology, Stellenbosch University, Matieland 7602, South Africa.
Trends Ecol Evol. 2009 Mar;24(3):136-44. doi: 10.1016/j.tree.2008.10.007. Epub 2009 Jan 27.
Biological invasions are caused by human-mediated extra-range dispersal and, unlike natural extra-range dispersal, are often the result of multiple introductions from multiple sources to multiple locations. The processes and opportunities that result in propagules moving from one area to another can be used more broadly to differentiate all types of extra-range dispersal. By examining key properties of dispersal pathways (notably propagule pressure, genetic diversity and the potential for simultaneous movement of coevolved species), the establishment and evolutionary trajectories of extra-range dispersal can be better understood. Moreover, elucidation of the mechanistic properties of dispersal pathways is crucial for scientists and managers who wish to assist, minimise or prevent future movements of organisms.
生物入侵是由人类介导的跨区域扩散引起的，与自然跨区域扩散不同，它通常是多种来源的多次引入到多个地点的结果。导致繁殖体从一个地区转移到另一个地区的过程和机会可以更广泛地用于区分所有类型的跨区域扩散。通过研究扩散途径的关键特性（特别是繁殖体压力、遗传多样性以及协同进化物种同时移动的可能性），可以更好地理解跨区域扩散的建立和进化轨迹。此外，阐明扩散途径的机制特性对于希望协助、减少或防止生物体未来移动的科学家和管理人员至关重要。
