Võõrliigi Kanada kuldvits (Solidago canadensis) levik ja invasiivsus Eestis Tartu linna näitel
Laen...
Kuupäev
2023
Kättesaadav alates
01.09.2023
Autorid
Labutina, Oksana
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Eesti Maaülikool
Abstrakt
Invasiivsed liigid on oluline keskkonnaprobleem, kuna aktiivse leviku käigus võivad nad
kohalikke liike välja tõrjuda või elupaiku muuta, põhjustada ökosüsteemi
ümberkorraldamist ja bioloogilise mitmekesisuse vähenemist. Invasiivsed liigid võivad
kahjustada inimeste tervist või põhjustada majanduslikku kahju. Kanada kuldvits, Solidago
canadensis, on nüüdseks laialt levinud ja teda peetakse invasiivseks paljudes Euroopa
riikides ja piirkondades. Kanada kuldvits kuulub nn musta raamatu liikide hulka, teda ei
tohi Eestis levitada ja riiki sisse tuua.
Antud töös vaadeldakse liigi kasvamiseedukust ja levikut, tõrjemeetmeid ja ohtlikkust. Töö
eesmärgiks on anda ülevaade invasiivse võõrliigi kanada kuldvitsa levikust kahes Tartu
linnaosas, Tähtveres ja Karlovas. Linnaosad on üsna sarnased selle poolest, et mõlemat
linnaosa iseloomustab tühermaa raudtee ümbruses ja Karlovas ka jõeluhal. Samuti
domineerivad mõlemas linnaosas eramud või väiksemad kortermajad koos aedadega. Täpsemad uurimisküsimused on: millistes kasvukohtades on liik enam levinud? Millise
struktuuriga on populatsioonid? Anda soovitused liigi leviku piiramiseks. See on vajalik
selle invasiivse taime leviku peatamiseks, kuna tal on kahjulik mõju ökoloogilisele
süsteemile tervikuna.
Invasive species are an important environmental problem, because in the course of their active spreading, they can displace native species or change habitats, cause ecosystem reorganization and reduce biodiversity. Invasive species can harm human health or cause economical damage. Canadian goldenrod, Solidago canadensis, is now widespreaded and considered invasive in many European countries and regions. Canadian goldenrod belongs to the so-called black book species, it may not be distributed in Estonia or brought into the country. The work examines the characteristics of growth and development, control methods and danger. The aim is to provide an overview of distribution of the invasive alien species as Canadian goldenrod in two districts of Tartu, Tähtvere and Karlova. The districts are quite similar, both of it are characterized by wasteland around the railway, and in Karlova also present the river bank. Also in both districts dominating private houses or smaller apartment buildings with gardens. More specific research questions are: In what places of growth the species are more common? What structure do populations have? To give recommendations of limiting wide spread of the species. This is important in order to stop spreading of invasive plant, which has harmful effect on the ecological system generally.
Invasive species are an important environmental problem, because in the course of their active spreading, they can displace native species or change habitats, cause ecosystem reorganization and reduce biodiversity. Invasive species can harm human health or cause economical damage. Canadian goldenrod, Solidago canadensis, is now widespreaded and considered invasive in many European countries and regions. Canadian goldenrod belongs to the so-called black book species, it may not be distributed in Estonia or brought into the country. The work examines the characteristics of growth and development, control methods and danger. The aim is to provide an overview of distribution of the invasive alien species as Canadian goldenrod in two districts of Tartu, Tähtvere and Karlova. The districts are quite similar, both of it are characterized by wasteland around the railway, and in Karlova also present the river bank. Also in both districts dominating private houses or smaller apartment buildings with gardens. More specific research questions are: In what places of growth the species are more common? What structure do populations have? To give recommendations of limiting wide spread of the species. This is important in order to stop spreading of invasive plant, which has harmful effect on the ecological system generally.
Kirjeldus
Bakalaureusetöö
Loodusturismi õppekaval
Märksõnad
bakalaureusetööd, Kanada kuldvits, Solidago canadensis, invasiivne