Modelling the Invaded Range of Tradescantia Fluminensis with Climate and Land Use Changes

By Liza Preethy Storey and Richard A. Warrick.

Published by The International Journal of Climate Change: Impacts and Responses

Format Price
Article: Print $US10.00
Published online: November 30, 2015 $US5.00

This study investigated 1) the effects of spatial scale on the predictive capacity of species distribution modelling for an invasive species and 2) the relative roles of climate and land use change as predictors of an invasive species’ distribution at different scales. The Maximum Entropy model, MaxEnt, was used to model the current and future potential invaded range of the invasive species Tradescantia fluminensis (Vell.). Two climate-only models at the global scale were produced: Model 1, using native range data from Brazil and Argentina only, projected to the global scale; and Model 2, pooled native and introduced range data at the global scale. Model 2 was projected to current and future spatio-temporal scales. A third land use model, at the landscape scale, was used to compare and integrate with the climate-only modelled results. In modelling current and future distributions of invasive species, naturalised widely outside the native range, it is important to undertake multi-scale hierarchical modelling that projects the globally invaded range model to smaller geographic areas of interest, and as spatial scale gets smaller, including land use related scenarios for current and future to adequately model localised species distribution projections, where land use is a dominant influence.

Keywords: Climate Change, Land Use Change, Invasive Species

International Journal of Climate Change: Impacts and Responses, Volume 7, Issue 4, December 2015, pp.25-39. Article: Print (Spiral Bound). Published online: November 30, 2015 (Article: Electronic (PDF File; 729.886KB)).

Dr. Liza Preethy Storey

Associate, Climsystems Limited, Hamilton, New Zealand

Prof. Richard A. Warrick

International Institute of Agri-Food Security, Curtin Business School, Curtin University, GPO Box U1987, Perth, WA 6845, Australia, Perth, Australia


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