Search

In this paper I present my recently observed floristic data on the Danube-Tisza Interfluve. I report a total of 117 species of vascular plants, of which 27 are protected and 3 are strictly protected. As the landscape of the Danube-Tisza Interfluve is diverse, these data come from a wide range of habitats: disturbed and natural dry, mesophilic and wet grasslands, forest edges, and different weed communities. I also provide a considerable amount of data from various sec ondary habitats: forest plantations, cemeteries, buildings, habitats along railroads, road verges, dry canal beds, water-filled canals, and ruderal habitats in urban environments. My data cover a total of nine microregions, the most prominent of which are: the Bácska Loess Plain, the Bugac Sand Ridge, the Dorozsma-Majsa Sand Ridge, the Kiskunság Sand Ridge and the Kiskunság Loess Ridge. For protected plant species, most noteworthy are the new observations of Apium repens, Epipactis bugacensis, E. atrorubens, Ranunculus illyricus, Muscari botryoides, Ophrys sphegodes, Vicia biennis. From a phytogeographical perspective, the most important new records are those of Galium tenuissimum, G. parisiense, Spiranthes spiralis and Bifora radians in the Kiskunság, and that of Ornithogalum refr actum in the Praematricum. From secondary habitats, I report the occurrence of five fern species, one of which (Asplenium ceterach) was not previously reported from the Great Hungarian Plain. I also present recent localities for certain alien plant species, some of which have barely known occurrence or historical data even at the country level (Echium plantagineum, Persicaria orientalis, Periploca graeca), and some of which are poorly known for the Danube-Tisza Interfluve (e.g., Lepidium densiflorum, L. virginicum, Geranium purpureum, Taeniatherum caput-medusae, Humulus scandens). The paper also describes the occurrence of several species for which there are no previous records from the region or microregion, only historical records are available, or data are scarce (Alcea biennis, Arabis glabra, Arctium minus, Chenopodium botrys, Ch. murale, Herniaria incana, Melilotus dentatus, Potentilla inclinata, Reseda luteola, Vicia pannonica subsp. striata, Vulpia myuros etc.). New records for several aquatic plant species (e.g., Najas marina, Lemna gibba, Wolffia arrhiza) are also provided. [ABSTRACT FROM AUTHOR]

In the second half of the 20th century the River Sajó was one of the most polluted Hungarian rivers because of industrial activity. As a result of the improvement of water quality since 1990, the fish fauna of the river has changed for the better. In our survey we studied the fish fauna of tributaries of the River Sajó. Altogether 2120 individuals of 21 species were captured in 10 streams along the River Sajó in autumn 2015. Conservation and ecological assessment based on fish communities was performed using previous publications about fish fauna of the River Sajó. Our results suggest a correlation between the quality of fish communities in tributaries and those in River Sajó being an overlapping species composition in tributaries and in the main river. Our observation indicates that the tributaries may serve as a valuable fish habitat of fish species of Sajó River Basin. [ABSTRACT FROM AUTHOR]