Spatial Surveillance of Invasion by Alien Species in a Heterogeneous Ecological Landscape

Ugyen Thinley, Poramate Banterng, Roengsak Katawatin and Santimaitree Gonkhamdee
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Ugyen Thinley: College of Natural Resources, Royal University of Bhutan, Thimphu, Bhutan
Poramate Banterng: Khon Kaen University, Khon Kaen, Thailand
Roengsak Katawatin: Khon Kaen University, Khon Kaen, Thailand
Santimaitree Gonkhamdee: Khon Kaen University, Khon Kaen, Thailand

International Journal of Applied Geospatial Research (IJAGR), 2020, vol. 11, issue 2, 1-17

Abstract: This article is an attempt to assess the invasion risk from the most noxious alien plant species using the GPS recorded locations and environmental variables. The invasion risk was modelled by combining the three ecological niche modelling algorithms- DesktopGARP, Openmodeller DesktopGARP and Maxent after validating their accuracies. The accuracies ranged from moderate to good in all the algorithms, for all six species. The result showed Ageratina adenophora and Ageratum conyzoides as highly invasive species both in terms of area coverage and the ecological tolerance range of the study site. It was also indicative that, irrespective of the species, agricultural lands are most susceptible to invasion among all other types of land uses in the study area.

Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:igg:jagr00:v:11:y:2020:i:2:p:1-17

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