干旱区生态环境知识资源中心(Arid): Clonal mechanisms that matter in Agave fourcroydes and A. sisalana invasions in drylands: implications for their management

Arid

	Clonal mechanisms that matter in Agave fourcroydes and A. sisalana invasions in drylands: implications for their management
	Salinas-Bonillo, Maria J.; Torres-Garcia, M. Trinidad; Paniagua, M. Mar; Sanchez, M. Mar; Cabello, Javier
通讯作者	Salinas-Bonillo, MJ
来源期刊	MANAGEMENT OF BIOLOGICAL INVASIONS
ISSN	1989-8649
出版年	2023
卷号	14 期号:1
英文摘要	Clonal species Agave fourcroydes and A. sisalana from ancient crops have become invasive in Mediterranean drylands, posing a severe threat to ecologically valuable native plant communities. However, we barely know the relative contribution of clonal mechanisms underlying their invasive behaviour. Therefore, environmental managers must face this problem without scientific evidence on the most effective methods to eradicate or control these invasions. In this study, we monitored populations of A. fourcroydes and A. sisalana and carried out field and experimental plantings (in situ and under controlled environmental conditions) to assess the efficacy of three clonal mechanisms: shoots from rhizomes, shoots from rosettes, and aerial bulbils from floral scapes). Both species showed very similar performance in their clonal expansion. Shoot production from rhizomes was the primary mechanism for densifying Agave populations, emerging to the soil 1.5 +/- 2.1 shoots per individual. Moreover, we did not observe mortality of new shoots from rhizomes. These new clonal individuals seemed to ensure their survival by connecting to the mother plant (clonal integration). In addition, contractile roots, only recorded in shoots from rhizomes, could represent an advantage allowing them to react to harsh environmental conditions. Regarding shoots from rosettes, individuals produced 0.63 +/- 1.01 shoots on average, with no mortality recorded, but without guaranteeing the replacement of mother plants. Finally, bulbil production and their rooting under controlled and favourable conditions were very high, although their establishment success under arid conditions proved irrelevant. These results suggest that management actions should focus on the removal of shoots from rhizomes. This approach could be an efficient, feasible, and cost-effective medium-to long-term habitat management strategy to control these Agave invasions, with widespread application worldwide in similar invasion processes.
英文关键词	aerial bulbils arid lands expansion and densification control invasive plants habitat management rhizome vegetative propagation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000928353900001
WOS关键词	ALIEN PLANTS ; CONSEQUENCES ; ENVIRONMENTS ; METAANALYSIS ; INTEGRATION ; AGAVACEAE ; IMPACTS ; ROOTS ; SPAIN
WOS类目	Biodiversity Conservation
WOS研究方向	Biodiversity & Conservation
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397803
推荐引用方式 GB/T 7714	Salinas-Bonillo, Maria J.,Torres-Garcia, M. Trinidad,Paniagua, M. Mar,et al. Clonal mechanisms that matter in Agave fourcroydes and A. sisalana invasions in drylands: implications for their management[J],2023,14(1).
APA	Salinas-Bonillo, Maria J.,Torres-Garcia, M. Trinidad,Paniagua, M. Mar,Sanchez, M. Mar,&Cabello, Javier.(2023).Clonal mechanisms that matter in Agave fourcroydes and A. sisalana invasions in drylands: implications for their management.MANAGEMENT OF BIOLOGICAL INVASIONS,14(1).
MLA	Salinas-Bonillo, Maria J.,et al."Clonal mechanisms that matter in Agave fourcroydes and A. sisalana invasions in drylands: implications for their management".MANAGEMENT OF BIOLOGICAL INVASIONS 14.1(2023).