ISHS Acta Horticulturae 690: I International Rose Hip Conference
TAXONOMIC INTERPRETATION OF THE NATURAL DIVERSITY OF THE GENUS ROSA IN THE CARPATHIAN BASIN, HUNGARY |
| Author: | G. Facsar |
| Keywords: | dogrose, ecology, genetic resources, habitat, hybridization, introgression, plant conservation, species distribution |
| Abstract:
The Carpathian basin constitutes a special natural history region of Southeastern Central Europe, reflected in the diversity and regional distribution of various taxa in the genus Rosa. Among the most common wild rose species in Hungary are Rosa gallica as well as several representatives of two of the subsections (Caninae and Rubiginosae) within Section Caninae (dogroses). Many other species occur in Hungary, often in habitats within specific climatic zones. Some of these species are very rare, with small and endangered populations. The living collection of wild roses, gathered in the field and now preserved in the Soroksár Botanical Garden, has been used for studies on discrimination between populations that can be treated as separate species. Changes in land use can destroy barriers between taxa and thus promote introgression. Populations that do not thrive in the changed environment can be pushed out due to lack of habitat, and rare taxa may become extinct. Only a few unspecialized species, that are indifferent to habitat, will then remain. | |
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