干旱区生态环境知识资源中心(Arid): Mapping rangeland ecosystems vulnerability to Lantana camara invasion in semi-arid savannahs in South Africa

Arid

DOI	10.1111/aje.12951
	Mapping rangeland ecosystems vulnerability to Lantana camara invasion in semi-arid savannahs in South Africa
	Dube, Timothy; Maluleke, Xivutiso Glenny; Mutanga, Onisimo
通讯作者	Dube, T (corresponding author)，Univ Western Cape, Inst Water Studies, Dept Earth Sci, Private Bag X17, ZA-7535 Bellville, South Africa.
来源期刊	AFRICAN JOURNAL OF ECOLOGY
ISSN	0141-6707
EISSN	1365-2028
出版年	2022-01
英文摘要	We mapped and modelled the potential areas vulnerable to Lantana camara (L. camara) invasion in semi-arid savannah ecosystems in the communal lands of Bushbuckridge and Kruger National Park, South Africa. Specifically, we modelled potentially vulnerable areas based on remotely sensed data and environmental variables. The Maximal Entropy (Maxent) algorithm was used to model the vulnerable area. The reliability of the modelled results was assessed using Skills Statistic (TSS), Area Under Curve (AUC) and Kappa statistics. According to the results, Bushbuckridge communal lands are more susceptible to L. camara invasions than Kruger National Park. The risk of L. camara invasion in the study site was modelled with high accuracy (AUC score of 0.95) using the best model (Model 7), which is a composite of all model variables (remote sensing and environmental variables). The spatial distribution maps derived from Maxent showed that L. camara was more likely to invade communal lands than protected areas. Using remotely sensed spectral indices as standalone model variables (Model 4) showed the lowest accuracy, with an AUC score of 0.85. Overall, model input variables such as elevation had a significant influence on the spatial distribution of L. camara in the study area.
英文关键词	environmental variables invasive plants encroachment L camara Maxent rangeland ecosystems semi-arid environments
类型	Article ; Early Access
语种	英语
开放获取类型	Green Published
收录类别	SCI-E
WOS记录号	WOS:000742014500001
WOS关键词	SPECIES DISTRIBUTION MODELS ; POTENTIAL DISTRIBUTION ; ABOVEGROUND BIOMASS ; SPECTRAL RESOLUTION ; SAMPLE-SIZE ; LAND-COVER ; TRADE-OFFS ; CLIMATE ; DISTRIBUTIONS ; PERFORMANCE
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377141
作者单位	[Dube, Timothy] Univ Western Cape, Inst Water Studies, Dept Earth Sci, Private Bag X17, ZA-7535 Bellville, South Africa; [Maluleke, Xivutiso Glenny; Mutanga, Onisimo] Univ KwaZulu Natal, Sch Agr Earth & Environm Sci, Geog & Environm Sci, Pietermaritzburg, South Africa
推荐引用方式 GB/T 7714	Dube, Timothy,Maluleke, Xivutiso Glenny,Mutanga, Onisimo. Mapping rangeland ecosystems vulnerability to Lantana camara invasion in semi-arid savannahs in South Africa[J],2022.
APA	Dube, Timothy,Maluleke, Xivutiso Glenny,&Mutanga, Onisimo.(2022).Mapping rangeland ecosystems vulnerability to Lantana camara invasion in semi-arid savannahs in South Africa.AFRICAN JOURNAL OF ECOLOGY.
MLA	Dube, Timothy,et al."Mapping rangeland ecosystems vulnerability to Lantana camara invasion in semi-arid savannahs in South Africa".AFRICAN JOURNAL OF ECOLOGY (2022).