engleski

Mapping of Croatian flora: possibilities and standards

For decades, world-wide flora has been mapped in various extents. The growing need for chorological data in scientific and experts" disciplines, and specially in preserving biological diversity, increased importance of defining the distribution of flora. Fundamental condition for such work is an existence of well-defined taxonomic and geographical units. While the basic taxonomic units are actually the contents of check-lists and Floras, geographical units are more a matter of methodological issues. Selection of a method depends on many factors: accuracy of data source, available staff, mapping area, coexistence with present standards, technological resources, basic maps, etc. Vast amount of data collected by mapping of national floras, need to be manipulate by, today well developed, computer tools (RDBMS, GIS). Here proposed standards for mapping of Croatian flora tried to take into account reality of caring out such a project under present conditions, as well as compatibility with similar European projects. The proposal defined basic taxonomic units, method of indirect mapping, basic geographical units (MTB grid squares, standard labels and names for MTB units, MTB 1/4 1/16 and 1/64 grid squares for smaller areas), cartographic bases, display of distribution on the 1:4.000.000 maps (Transverse Mercator projection, 5th zone, central meridian at 15°), MTB basic square grid and conceptual examples for constructing databases. Standard labels and names, as well as grids of basic UTM squares, geographical regions with names and fixed boundaries are given, to make easier exchange and accumulation of data. In enclosure there are "blind" maps of Croatia as assistance for technical applicability of proposal, which are also available in the other formats and media including the corresponding Internet service.

flora; mapping; standards

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