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We suggest the concept of ecogeographic aggregations (EGAs) of plant species, according to which populations (ecogeographic units, EGUs) of each species are combined into spatially close groups (aggregations) if they are adjacent to each other and live under similar conditions. The specification of EGA is based on the analysis of thematic geographic maps (of soils, topography, etc.). The delineated...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.