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Articles in E-pub version are posted online ahead of regular printed publication.

Original Papers
Distribution Status of Invasive Alien Species in the Estuarine Wetlands in East and South Coast, Korea
Yeounsu Chu, Pyoungbeom Kim, Minhyeok Won
Received April 4, 2024  Accepted June 4, 2024  Published online June 14, 2024  
DOI: https://doi.org/10.22761/GD.2024.0007    [Epub ahead of print]
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Based on the results of survey on estuarine ecosystem conducted from 2021 to 2023, this study analyzed the distribution pattern of invasive alien species. A total of six invasive alien species (Micropterus salmoides [M. salmoides], Lepomis macrochirus [L. macrochirus], Lithobates catesbeianus [L. catesbeianus], Trachemys scripta [T. scripta], Pseudemys concinna [P. concinna], and Pseudemys nelsoni [P. nelsoni]) were identified across 118 estuarine wetlands. The survey revealed 960 individuals of M. salmoides, 2,596 individuals of L. macrochirus, 1,088 individuals of L. catesbeianus, and 44 individuals of T. scripta, while 1 individual of P. concinna and P. nelsoni were found. These invasive species were found to be densely distributed in estuarine wetlands in the Haenam and Goheung regions of the southern coast. Furthermore, the distribution density varied depending on the characteristics and locations of the estuarine wetlands. It was observed that the distribution density was higher in closed type than in open type, in riverine than in lacustrine, and in the south coast than in the east coast. Once the basic survey of estuarine wetlands located on the west coast is completed, a clearer understanding of the nationwide distribution characteristics of invasive alien species in estuarine wetlands can be achieved. This information will be crucial for formulating appropriate management strategies tailored to the characteristics of wetlands or coastal areas in the future.
The Study of Distribution for the Plants of Alien Species on Specific Islands Monitored by Ministry of Environment, South Korea
Youngjun Park, Donghui Choi, Daeun Kim, Hyungsoo Seo, Hyoun-gi Cha, Hyun-chul Shin
Received March 20, 2024  Accepted April 24, 2024  Published online June 10, 2024  
DOI: https://doi.org/10.22761/GD.2024.0006    [Epub ahead of print]
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AbstractAbstract PDF
This study was conducted to provide information on alien species to the specific islands monitored by Ministry of Environment in South Korea, based on the National Survey of Natural Environment of Islands from 2006 to 2020. In the study area, a total 54 taxa, consisting of 17 family, 45 genera, 53 species, one variety, were found. Among them, two species classified as Ecosystem-disturbing species, Humulus japonicus (H. japonicus) Siebold & Zucc. and Ambrosia artemisiifolia (A. artemisiifolia) Linnaeus were found. Alien plants were identified on 127 islands (49.4%), H. japonicus were found on 27 and A. artemisiifolia on six specific islands. The spatial status of alien flora on the specific islands monitored by Ministry of Environment in our data can be basic ecological information for the conservation and management of plant species diversity on the islands.

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