Daugavpils Universitātes 55.Starptautiskās ... - DU conference

Anna Brokāne, Santa RutkovskaDaugavpils University, Parades street 1, Daugavpils, Latvia, anna.brokane@gmail.com, santa.rutkovska@du.lvDISTRIBUTION ANALYSIS OF ROSA RUGOSA IN PRODE'SPARISH AND SUBATE'S CITY TERRITORYAlien plant species Rosa rugosa Thunb is considered as invasive plant species according to NOBANIS(North Atlantic and Baltic Network of Invasive Species). This plant species is classified as invasive in16 European countries with biggest amount of dispersal in Denmark, Sweden and Norway. Rosarugosa had brought from Japan and has started to naturalize and spread here since beginning of 19century. First time in Latvia Rosa rugosa was found in 1888.The research area of Rosa rugosa consisted of Prode’s parish and Subate’s city, where till now hasn’tdone this kind of research. The research was made in summer of 2011 and 2012. Area was divided to500x500m big squares. In the result Subate’s city has 39 square and Prode’s parish – 447.Amount of invaded places were almost similar in both territories, in spite of comparatively bigdifference of area. There are 28 different invaded places in Prode’s parish and 25 in Subate’s city. InProde’s parish Rosa rugosa most is found at roadsides, fallow lands and glens biotopes, but in Subate’scity mostly at fallow lands and cemetery biotopes. Amount of plant is comparatively smaller in otherbiotopes.Usually Rosa rugosa is found more in dryer biotopes like dunes, dry border of forests, roadsides, butauthor research give proof that plant has tendency to spread in other biotopes as an example in glens.Ginta Janoviča, Santa RutkovskaDaugavpils University, Parades street 1, Daugavpils, Latvia, ginta.janovica@inbox.lv, santa.rutkovska@du.lvDISTRIBUTION ANALYSIS OF HERACLEUM SOSNOWSKYIMANDEN. IN JAUNGULBENES PARISH TERITORYHeracleum Sosnowskyi native reagion is Caucasus and firstly in teritory of Latvia it came from Russia.H. Sosnowskyi is invasive in all Baltic reagion, Europien part of Russia, Belorussia and Ukraine.Information was founded in NOBANIS (North Atlantic and Baltic Network of Invasive Species).H. Sosnowskyi widely distributed in abandoned lands, mostly abandoned agricultural lands, inanthropogenically modified habitats, bushes, forests, roadsides, ditches, around rivers and otherwater bodies, through which help H. Sosnowsky effectively spread seeds over a wide area. Exception iswide and deep rivers with steep banks, because seeds can’t “catch on” anywhere and plant can’t makebigger stands. Rapid spread of H. Sosnowskyi promote multitude of seeds, human activity, road traffic,movement of soil, animal transport.Distribution analysis of H. Sosnowskyi performed in Jaungulbenes parish teritory, in summer andautumn of 2011 and 2012. All teritory was divided in 422 quadrants (one quadrant size - 500x500 m).Each quadrant was surveyed by “excursion” method. Biggest stands of H. Sosnowskyi were found nearditches, roadsides, near abandoned buildings and in overgrown meadows.Inga LiniĦa, Santa RutkovskaDaugavpils Universitāte, Parādes iela 1, Daugavpils, Latvija, inga.linina@inbox.lv, santa.rutkovska@du.lvBUNIAS ORIENTALIS L. IZPLATĪBA DABAS PARKĀ„DVIETES PALIENE”Bunias orientalis L. Latvijas teritorijā ir konstatēts jau kopš 19. gs. un pēc NOBANIS (North Atlanticand Baltic Network of Invasive Species) datiem Eiropā šis augs jau ir naturalizējies un Latvijā (kā arīLietuvā, Polijā, Zviedrijā u.c. Eiropā) tiek uzskatīts par invazīvu. Nonākot jaunā biotopā, suga ātri~ 10 ~