Kateřina Berchová-Bímová1, Martina Kadlecová1, Miroslav Kopecký2, Jiří Patoka3, David Petrus1, Ondřej Simon1, Johana Vardarman1 and Martin Vojík1,4
1Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Praha 6 Suchdol, 165 00, Czech Republic
2GISAT s.r.o., Milady Horákové 57, Praha 7, 170 00, Czech Republic
3Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, Praha 6 Suchdol, 165 00, Czech Republic
4Institute of Botany, Department of Invasion Ecology, The Czech Academy of Sciences, Průhonice, 252 43, Czech Republic
Invasive alien species (IAS) monitoring and their appropriate management planning are key problems for nature conservation. Once non-native species exist in an area, predictions of future spread are important for management approach selection and evaluation of the practical feasibility of possible further actions. GEO-BI provides a science-based tool to illustrate IAS spatial distribution in the Czech Republic, presenting results of two types of projected future spread. The main purpose of the geoportal is to help land managers stop or reduce the spread of IAS across the country, to create a useful tool for planning regional IAS management strategies and thus protect the environment and economy from IAS impacts.
GEO-BI includes (i) Maps of species’ current distribution – using both published and unpublished data to illustrate the selected IAS current distribution based on net-mapping. (ii) Prediction models of maximal potential distribution – using species distribution modelling tools built on presence or presence/absence data which shows the particular species area of suitability and environmental limits of further spread under contemporary conditions. (iii) Mechanistic models of local spreading – using a combination of spread probability based on spreading vectors, species ecology and habitat characteristics, and species distribution shows the possible local species spread modelled in a GIS environment. The input data for all three above-mentioned sections of the geoportal are gained from the Digital Register of the Nature Conservation Agency of the Czech Republic, which is regularly updated.
What are the GEO-BI goals? IAS distribution and predictive maps show where species are currently present and where they are most likely to spread. For particular species and regions, GEO-BI suggests management possibilities and sets the spatial priorities of IAS management. It is possible to choose a strategy in terms of three categories as determined by the species’ spatial distribution: surveillance, eradication, or containment. These informed decisions can provide a starting point for establishing priorities and goals at the regional level of IAS management. The predictive GEO-BI maps may affect decision-making of management at a landscape level and coordinate regional strategic mapping, planning, and implementation of IAS control projects. The GEO-BI maps can also serve as support to secure funding for strategic IAS control projects and policies.