干旱区生态环境知识资源中心(Arid): The dispersal and spread of invasive alien Myrtillocactus geometrizans in the southern Karoo, South Africa

Arid

DOI	10.1016/j.sajb.2018.11.005
	The dispersal and spread of invasive alien Myrtillocactus geometrizans in the southern Karoo, South Africa
	Dean, W. R. J.1,2; Milton, S. J.1,3
通讯作者	Milton, S. J.
来源期刊	SOUTH AFRICAN JOURNAL OF BOTANY
ISSN	0254-6299
EISSN	1727-9321
出版年	2019
卷号	121 页码:210-215
英文摘要	The invasion of Cactaceae into semi-arid and arid ecosystems in South Africa is of conservation concern, particularly those species that produce juicy fruit that attract avian frugivores. Bird-dispersed Bilberry Cactus (Myrtillocactus geometrizans) is invading natural areas around the village of Prince Albert and appears to have originated from a cactus collection that was established about 40 years ago, and from there has spread locally over an area of about 1 km(2). We surveyed the invaded area, recording a GPS point and size data for each of 156 Bilberry Cactus plants. The height-class distributions of Bilberry Cactus plants recorded in our survey suggest that recruitment is episodic rather than continuous or annual, with clearly defined invasion, or survival events. As this cactus species matures slowly and recruits episodically, the rate of the invasion has been slow. However, the presence of suitable pollination and dispersal mutualists and indigenous shrubs that serve as protective host plants suggest that the populations will continue to grow and spread unless controlled. Moreover the large size of mature Bilberry Cactus plants is likely to have a negative effect on the small endemic succulents that share the same host plants. (C) 2018 SAAB. Published by Elsevier B.V. All rights reserved.
英文关键词	Bilberry Cactus Garden escapees Arid environment Nurse plant Population structure Succulent Karoo
类型	Article
语种	英语
国家	South Africa
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000467535700025
WOS关键词	POPULATIONS ; CACTACEAE
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218905
作者单位	1.Wolwekraal Conservat & Res Org, ZA-6930 Prince Albert, South Africa; 2.Univ Cape Town, DST NRF Ctr Excellence, Percy FitzPatrick Inst, Private Rag X3, ZA-7701 Rondebosch, South Africa; 3.Arid Lands Node, SAEON, Kimberley, South Africa
推荐引用方式 GB/T 7714	Dean, W. R. J.,Milton, S. J.. The dispersal and spread of invasive alien Myrtillocactus geometrizans in the southern Karoo, South Africa[J],2019,121:210-215.
APA	Dean, W. R. J.,&Milton, S. J..(2019).The dispersal and spread of invasive alien Myrtillocactus geometrizans in the southern Karoo, South Africa.SOUTH AFRICAN JOURNAL OF BOTANY,121,210-215.
MLA	Dean, W. R. J.,et al."The dispersal and spread of invasive alien Myrtillocactus geometrizans in the southern Karoo, South Africa".SOUTH AFRICAN JOURNAL OF BOTANY 121(2019):210-215.