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http://dx.doi.org/10.11614/KSL.2021.54.2.142

Distributional Characteristics by Habitat Type of Alien Plants - For Gyeongsang Area in Korea -  

Lee, Jung-Min (Department of Life Science, Kongju National University)
Kim, Eui-Joo (Department of Life Science, Kongju National University)
Lee, Hyo-Hye-Mi (National Institute of Ecology)
Cho, Kuy-Tae (Department of Life Science, Kongju National University)
Publication Information
Korean Journal of Ecology and Environment / v.54, no.2, 2021 , pp. 142-150 More about this Journal
Abstract
To analyze the distribution characteristics of alien plants in various habitat types, 249 sites were selected from four administrative districts in the Gyeongsang region of Korea. The survey was conducted across nine different habitat types. A total of 115 species of alien plants were collected; comprising 23 families, 73 genera, 112 species, and 3 varieties. Species from the family Compositae were the most common at 33.0%. Raunkiaer's life forms had the highest occurrence rate with 70 species(60.9%) of therophytes(Th) followed by 30 species (26.1%) of hemicryptophytes (H) and 8 species (7.0%) of geophytes (G). The distributions of alien plant species per habitat type were: 81 species on the roadside; 80 species on vacant lots and artificial habitats; 67 species in streams; 53 species in grasslands; 47 species in cultivated lands; and 39 species on the coast. Since 2017, the number of alien plants has increased in Gyeongju-si, Cheongdo-gun, and Pohang-si, and decreased in Ulsan Metropolitan-si. In each region, 614 taxa were observed. The invasive alien species, Sicyos angulatus, Hypocaeris radicata, and Solanum carolinense, were observed for the first time and are expected to further increase the disturbance of the ecosystem.
Keywords
type of habitat; raunkiaer's life forms; disturbance; ecosystem;
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