Võõrliikide leviku seos matkaradadega Vapramäe-Vellavere-Vitipalu näitel
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Kuupäev
2015
Kättesaadavus
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
Võõrliigid satuvad oma looduslikest areaalidest uutesse elupaikadesse peamiselt inimese
tahtlikul või tahtmatul kaasaabil. Võõrliikide levikut soodustavad levikukoridoride olemasolud
ning elupaiga sobivus. Levikukoridorideks võivad olla nii teed, vooluveekogud kui ka
matkarajad. Looduskaitseliselt väärtustatud aladel toimivad lineaarsed, kitsa struktuuriga
matkarajad levikukoridoridena. Võõrliikide levikut matkaradadel soodustab radade intensiivne
kasutamine.
Antud uurimustöö eesmärgiks oli tutvustada võõrliikide levikuvektoreid ning uurida, milliseid
võõrliike leidub Vapramäe, Vellavere ja Vitipalu matkaradadel (Tartumaa). Välitöödel vaadeldi
matkaradu kui transekte, millest kahele poole 10 m ulatuses määrati ja fikseeriti kõik võõrliigid
ja nende leiukohad. Kokku leiti kolmelt matkarajalt 10 erinevat võõrliiki, mille leiukohti oli 86.
Üle 50% leiukohtadest moodustas Vapramägi, mis on kolmest asukohast ka enim külastatud.
Vähim võõrliikide leiukohti esines Vitipalus. Valdav osa võõrliikidest asus matkaraja vahetus
läheduses, millest 10 m kaugusele rajast ulatusid vaid üksikute liikide isendid ja kolooniad.
Uurimustöö käigus kogutud andmetest moodustati võõrliikide leiukohtade kaardid, mida saab
kasutada edasise võõrliikide seire korraldamise alusmaterjalina Vapramäe, Vellavere ja Vitipalu
piirkonnas
Alien species are distributed from their natural habitat to new areas mainly by humans either intentionally or unintentionally. Dispersal corridor availability and suitable habitats encounter the spread of alien species. Dispersal corridors are usually roads, moving water and also hiking trails. In protected areas linear and narrow hiking trails act as dispersal corridors. The spread of alien species on hiking trails is promoted by intense usage of trails. The aim of this study was to introduce the vectors in alien species spread and investigate which alien species are found in Vapramäe, Vellavere and Vitipalu hiking trails (Tartu County). Hiking trails were observed as transects on which and perpendicular 10 m, all alien species were recorded. There were total of 10 different alien species found in 86 locations. Over 50% of the findings were in Vapramäe hiking trail. Vapramäe is also the most visited by hikers in the area. The least species were found in Vitipalu. The majority of alien species were recorded by the side of the trail. Only few colonies reached up to 10 m perpendicular from the trail. The data collected in this research can be used as a base for future alien plant species monitoring in Vapramäe-Vellavere-Vitipalu area
Alien species are distributed from their natural habitat to new areas mainly by humans either intentionally or unintentionally. Dispersal corridor availability and suitable habitats encounter the spread of alien species. Dispersal corridors are usually roads, moving water and also hiking trails. In protected areas linear and narrow hiking trails act as dispersal corridors. The spread of alien species on hiking trails is promoted by intense usage of trails. The aim of this study was to introduce the vectors in alien species spread and investigate which alien species are found in Vapramäe, Vellavere and Vitipalu hiking trails (Tartu County). Hiking trails were observed as transects on which and perpendicular 10 m, all alien species were recorded. There were total of 10 different alien species found in 86 locations. Over 50% of the findings were in Vapramäe hiking trail. Vapramäe is also the most visited by hikers in the area. The least species were found in Vitipalu. The majority of alien species were recorded by the side of the trail. Only few colonies reached up to 10 m perpendicular from the trail. The data collected in this research can be used as a base for future alien plant species monitoring in Vapramäe-Vellavere-Vitipalu area
Kirjeldus
Märksõnad
võõrliigid, levik (biol.), matkarajad, Vapramäe, Vellavere, Elva-Vitipalu maastikukaitseala, bakalaureusetööd