Scientific interests:

Phytogeography, vegetation of military training areas, ecology of temporary ponds in the agricultural landscape, river valley vegetation, disturbance ecology, invasive plant species, nature conservation.

Publications

Krawczyk R., Zubel R., Komsta Ł.2019. Military training areas and vegetation – the effect of explosion craters on species diversity along a moisture gradient. Pol. J. Ecol. 67(3): 196-207.

Krawczyk R., Gąbka M. 2019. Egeria densa (Hydrocharitaceae) – nowy gatunek antropofita we florze Polski. Fragm. Florist. Geobot. Polon. 26(1): 41-48.

Ellis L. T., Agcagil E., Kırmacı M., Aleffi M., Bakalin V. A., Bednarek-Ochyra H., Cykowska-Marzencka B., Stryjak-Bogacka M., Bojaca G. F. P., Fantacelle L. B., Araújo C. A. T., Maciel-Silva A. S., Bruno Silva J., Calleja J. A., Cano M. J., Castillo Diaz, J. Gabriel R., Dias dos Santos N., Enroth J., Erzberger P., Garilleti R., Hájek M., Hedenäs L., Heras P., Infante M., Kiebacher T., Koczur A., Krawczyk R., Kučera J., Lebouvier M., Lüth M., Mazimpaka V., Vigalondo B., Lara F., Nagy J., Németh Cs., Kovács A., Nobis M., Węgrzyn M., Wietrzyk P., Norhazrina N., Vanderpoorten A., Nowak A., Poponessi S., Gigante D., Venanzoni R., Plášek V., Rangel Germano S., Schäfer-Verwimp A., Sérgio C., Claro D., Garcia C. A., Shirzadian S., Akhoondi Darzikolaei S., Stebel A., Suleiman M., Yong K.-T., Virchenko V. M., Vončina G., Yoon Y.-J., Choi H.-G., Kim J. H. 2016. New national and regional bryophyte records, 49. Journal of Bryology 38: 327-347.

CwenerA., Michalczuk W., KrawczykR. 2016. Red list of vascular plants of Lublin Region. Annales Univ. M. Curie-Skłodowska, sec. C., 71(1): 7-26.

Cwener A., Krawczyk R., Michalczuk W. 2016. Nowe stanowisko Caldesia parnassifolia (Alismataceae) w Polsce. Fragm. Florist. Geobot. Polon. 23(1): 165-169.

Krawczyk R., Cwener A., Michalczuk W., Zubel R. 2016. Ephemeral wetland communities of Isoëto-Nano-Juncetea class – new data from south-eastern Poland. Biodiv. Res. Conserv. 42: 41-54.

Krawczyk R., Lis Ł., Urbaniak J. 2016. Water parameters and species composition of macrophytes in reclamation lakes in the area of a former sulphur borehole mine (SE Poland). Annales Univ. M. Curie-Skłodowska, sec. C., 71(1): 27-39.

Buczyński P., Tończyk G., Bielecki A., Cichocka J.M., Kitowski I., Grzywaczewski G., Krawczyk R., Nieoczym M., Jabłońska A., Pakulnicka J., Buczyńska E. 2014. Occurrence of the medicinal leech (Hirudo medicinalis) in birds’ nests. Biologia 69(4): 484-488.

Krawczyk R. 2014. Small-scale spatial analysis of river corridor plants distribution in the San river valley (SE Poland). Biodiv. Res. Conserv. 34: 53-64. DOI 10.2478/biorc-2014-0007

Kubiak A.P., Krawczyk R. 2014. Diversity of macrophytes in riverine aquatic habitats: comparing river channel and its cut-offs. Annales Univ. M. Curie-Skłodowska, sec. C, 69(1): 49-57.

Krawczyk R. 2012. Erysimum diffusum (Brassicaceae) w Polsce. Fragm. Flor. Geobot. Polon. 19(1): 45-59.

Krawczyk R. 2012. Influence of natural and anthropogenic factors on the distribution of xerothermic plants in the Lower San River valley. Acta Agrobot. 65(1): 107-114.

Nowak A., Nobis M., Dajdok Z., Zalewska-Gałosz J., Nowak S., Nobis A., Czerniawska-Kusza I., Kozak M., Stebel A., Bula R., Sugier P., Szlachetka A., Bena W., Trojecka A., Piwowarczyk R., Adamiec A., Krawczyk R. 2010. Revision of Nymphaea candida range – new data on the distribution and habitat preferences of the species in southern Poland. Acta Soc. Bot. Pol. 79(4): 333-350.

Krawczyk R. 2010. Species richness and vegetation structure in different morphogenetic types of river lakes in the San River valley. Annales Univ. M. Curie-Skłodowska, sec. C, 65(1): 29-45, doi: 10.2478/v10067-011-0003-7

Krawczyk R., Nobis A., Nobis M., Cwener A. 2008. Is Viola uliginosa critically endangered in Poland? – new data on the distribution of the species. Acta Soc. Bot. Polon. 77(4): 345-349.

Komosa A., Chibowski S., Kitowski I, Krawczyk R., Orzeł J., Reszka M. 2006. Transfer of selected heavy metals and radionuclides from calcareous peat to saw sedge (Cladium mariscus) in eastern Poland. Journal of Radioanalytical and Nuclear Chemistry 269: 195-201.

Kitowski I., Krawczyk R., Cierech A. 2005. Feeding ecology of long-eared owl Asio otus during out breeding period in south-east Poland. Annales Univ. M. Curie-Skłodowska, sec. C, 60: 7-17.

Kitowski I., Krawczyk R., 2005. Observation on some colonies of grey heron in Lublin Region (southeast Poland). Berkut, 14(1): 45-49.

Kasprzyk K., Kitowski I., Czochra K., Krawczyk R. 2004. Bats in the diet of owls from the southern part of the Lublin region (SE Poland). Myotis, 41-42: 75-80.

Kucharczyk M., Krawczyk R. 2004. Kenophytes as river corridor plants in the Vistula River and the San River valleys. Teka Kom. Ochr. Kształt Środ. Przyr., 1: 110-115.