Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/ece3.4649 |
Ensemble approach for potential habitat mapping of invasive Prosopis spp. in Turkana, Kenya | |
Ng, Wai-Tim1; de Oliveira Silva, Alexsandro Candido2; Rima, Purity3,4; Atzberger, Clement1; Immitzer, Markus1 | |
通讯作者 | Ng, Wai-Tim |
来源期刊 | ECOLOGY AND EVOLUTION
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ISSN | 2045-7758 |
出版年 | 2018 |
卷号 | 8期号:23页码:11921-11931 |
英文摘要 | Aim Prosopis spp. are an invasive alien plant species native to the Americas and well adapted to thrive in arid environments. In Kenya, several remote-sensing studies conclude that the genus is well established throughout the country and is rapidly invading new areas. This research aims to model the potential habitat of Prosopis spp. by using an ensemble model consisting of four species distribution models. Furthermore, environmental and expert knowledge-based variables are assessed. Location Turkana County, Kenya. Methods We collected and assessed a large number of environmental and expert knowledge-based variables through variable correlation, collinearity, and bias tests. The variables were used for an ensemble model consisting of four species distribution models: (a) logistic regression, (b) maximum entropy, (c) random forest, and (d) Bayesian networks. The models were evaluated through a block cross-validation providing statistical measures. Results The best predictors for Prosopis spp. habitat are distance from water and built-up areas, soil type, elevation, lithology, and temperature seasonality. All species distribution models achieved high accuracies while the ensemble model achieved the highest scores. Highly and moderately suitable Prosopis spp. habitat covers 6% and 9% of the study area, respectively. Main conclusions Both ensemble and individual models predict a high risk of continued invasion, confirming local observations and conceptions. Findings are valuable to stakeholders for managing invaded area, protecting areas at risk, and to raise awareness. |
英文关键词 | ensemble modeling expert knowledge invasive alien species Prosopis species distribution modeling |
类型 | Article |
语种 | 英语 |
国家 | Austria ; Brazil ; Kenya |
收录类别 | SCI-E |
WOS记录号 | WOS:000454107200046 |
WOS关键词 | SPECIES DISTRIBUTION MODELS ; ALIEN PLANT ; MESQUITE ; DISTRIBUTIONS ; ENVIRONMENTS ; EQUILIBRIUM ; MANAGEMENT ; RESOLUTION ; IMPACT ; COSTS |
WOS类目 | Ecology ; Evolutionary Biology |
WOS研究方向 | Environmental Sciences & Ecology ; Evolutionary Biology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/208815 |
作者单位 | 1.Univ Nat Resources & Life Sci BOKU, Inst Surveying Remote Sensing & Land Informat IVF, Vienna, Austria; 2.Natl Inst Space Res INPE, Image Proc Div DPI, Ave Astronautas, Sao Jose Dos Campos, Brazil; 3.Kenya Forestry Res Inst KEFRI, Baringo Sub Ctr, Marigat, Kenya; 4.Chuka Univ, Dept Geog, Fac Arts & Humanities, Chuka, Kenya |
推荐引用方式 GB/T 7714 | Ng, Wai-Tim,de Oliveira Silva, Alexsandro Candido,Rima, Purity,et al. Ensemble approach for potential habitat mapping of invasive Prosopis spp. in Turkana, Kenya[J],2018,8(23):11921-11931. |
APA | Ng, Wai-Tim,de Oliveira Silva, Alexsandro Candido,Rima, Purity,Atzberger, Clement,&Immitzer, Markus.(2018).Ensemble approach for potential habitat mapping of invasive Prosopis spp. in Turkana, Kenya.ECOLOGY AND EVOLUTION,8(23),11921-11931. |
MLA | Ng, Wai-Tim,et al."Ensemble approach for potential habitat mapping of invasive Prosopis spp. in Turkana, Kenya".ECOLOGY AND EVOLUTION 8.23(2018):11921-11931. |
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