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Mr. Lee Dae-Seong
Kyunghee University

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0 Ecology
0 Ecosystem
0 Informatics
0 Analysis & Applications
0 Modeling & simulation

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Journal article
Published: 08 March 2021 in Insects
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The tropical fire ant Solenopsis geminata (Hymenoptera: Formicidae) is a serious invasive species that causes a decline in agricultural production, damages infrastructure, and harms human health. This study was aimed to develop a model using the maximum entropy (MaxEnt) algorithm to predict the current and future distribution of S. geminata on a global scale for effective monitoring and management. In total, 669 occurrence sites of S. geminata and six bioclimatic variables of current and future climate change scenarios for 2050 and 2100 were used for the modeling. The annual mean temperature, annual precipitation, and precipitation in the driest quarter were the key influential factors for determining the distribution of S. geminata. Although the potential global distribution area of S. geminata is predicted to decrease slightly under global warming, the distribution of favorable habitats is predicted to expand to high latitudes under climate scenarios. In addition, some countries in America and East Asia, such as Brazil, China, South Korea, the USA, and Uruguay, are predicted to be threatened by S. geminata invasion under future climate change. These findings can facilitate the proactive management of S. geminata through monitoring, surveillance, and quarantine measures.

ACS Style

Cheol Lee; Dae-Seong Lee; Tae-Sung Kwon; Mohammad Athar; Young-Seuk Park. Predicting the Global Distribution of Solenopsis geminata (Hymenoptera: Formicidae) under Climate Change Using the MaxEnt Model. Insects 2021, 12, 229 .

AMA Style

Cheol Lee, Dae-Seong Lee, Tae-Sung Kwon, Mohammad Athar, Young-Seuk Park. Predicting the Global Distribution of Solenopsis geminata (Hymenoptera: Formicidae) under Climate Change Using the MaxEnt Model. Insects. 2021; 12 (3):229.

Chicago/Turabian Style

Cheol Lee; Dae-Seong Lee; Tae-Sung Kwon; Mohammad Athar; Young-Seuk Park. 2021. "Predicting the Global Distribution of Solenopsis geminata (Hymenoptera: Formicidae) under Climate Change Using the MaxEnt Model." Insects 12, no. 3: 229.

Journal article
Published: 12 July 2019 in Forests
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Invasive species cause a severe impact on existing ecosystems. The citrus flatid planthopper (CFP; Metcalfa pruinosa (Say, 1830)) is an invasive species in many countries. Predicting potential occurrence areas of the species related to environmental conditions is important for effective forest ecosystem management. In this study, we evaluated the occurrence patterns of the CFP and predicted its potential occurrence areas in South Korea using a random forest model for a hazard rating of forests considering meteorological and landscape variables. We obtained the occurrence data of the CFP in South Korea from literature and government documents and extracted seven environmental variables (altitude, slope, distance to road (geographical), annual mean temperature, minimum temperature in January, maximum temperature in July, and annual precipitation (meteorological)) and the proportion of land cover types across seven categories (urban, agriculture, forest, grassland, wetland, barren, and water) at each occurrence site from digital maps using a Geographic Information System. The CFP occurrence areas were mostly located at low altitudes, near roads and urbanized areas. Our prediction model also supported these results. The CFP has a high potential to be distributed over the whole of South Korea, excluding high mountainous areas. Finally, factors related to human activities, such as roads and urbanization, strongly influence the occurrence and dispersal of the CFP. Therefore, we propose that these factors should be considered carefully in monitoring and surveillance programs for the CFP and other invasive species.

ACS Style

Dae-Seong Lee; Yang-Seop Bae; Bong-Kyu Byun; Seunghwan Lee; Jong Kyun Park; Young-Seuk Park. Occurrence Prediction of the Citrus Flatid Planthopper (Metcalfa pruinosa (Say, 1830)) in South Korea Using a Random Forest Model. Forests 2019, 10, 583 .

AMA Style

Dae-Seong Lee, Yang-Seop Bae, Bong-Kyu Byun, Seunghwan Lee, Jong Kyun Park, Young-Seuk Park. Occurrence Prediction of the Citrus Flatid Planthopper (Metcalfa pruinosa (Say, 1830)) in South Korea Using a Random Forest Model. Forests. 2019; 10 (7):583.

Chicago/Turabian Style

Dae-Seong Lee; Yang-Seop Bae; Bong-Kyu Byun; Seunghwan Lee; Jong Kyun Park; Young-Seuk Park. 2019. "Occurrence Prediction of the Citrus Flatid Planthopper (Metcalfa pruinosa (Say, 1830)) in South Korea Using a Random Forest Model." Forests 10, no. 7: 583.

Journal article
Published: 29 October 2018 in Insects
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Odonata species are sensitive to environmental changes, particularly those caused by humans, and provide valuable ecosystem services as intermediate predators in food webs. We aimed: (i) to investigate the distribution patterns of Odonata in streams on a nationwide scale across South Korea; (ii) to evaluate the relationships between the distribution patterns of odonates and their environmental conditions; and (iii) to identify indicator species and the most significant environmental factors affecting their distributions. Samples were collected from 965 sampling sites in streams across South Korea. We also measured 34 environmental variables grouped into six categories: geography, meteorology, land use, substrate composition, hydrology, and physicochemistry. A total of 83 taxa belonging to 10 families of Odonata were recorded in the dataset. Among them, eight species displayed high abundances and incidences. Self-organizing map (SOM) classified sampling sites into seven clusters (A–G) which could be divided into two distinct groups (A–C and D–G) according to the similarities of their odonate assemblages. Clusters A–C were characterized by members of the suborder Anisoptera, whereas clusters D–G were characterized by the suborder Zygoptera. Non-metric multidimensional scaling (NMDS) identified forest (%), altitude, and cobble (%) in substrata as the most influential environmental factors determining odonate assemblage compositions. Our results emphasize the importance of habitat heterogeneity by demonstrating its effect on odonate assemblages.

ACS Style

Da-Yeong Lee; Dae-Seong Lee; Mi-Jung Bae; Soon-Jin Hwang; Seong-Yu Noh; Jeong-Suk Moon; Young-Seuk Park. Distribution Patterns of Odonate Assemblages in Relation to Environmental Variables in Streams of South Korea. Insects 2018, 9, 152 .

AMA Style

Da-Yeong Lee, Dae-Seong Lee, Mi-Jung Bae, Soon-Jin Hwang, Seong-Yu Noh, Jeong-Suk Moon, Young-Seuk Park. Distribution Patterns of Odonate Assemblages in Relation to Environmental Variables in Streams of South Korea. Insects. 2018; 9 (4):152.

Chicago/Turabian Style

Da-Yeong Lee; Dae-Seong Lee; Mi-Jung Bae; Soon-Jin Hwang; Seong-Yu Noh; Jeong-Suk Moon; Young-Seuk Park. 2018. "Distribution Patterns of Odonate Assemblages in Relation to Environmental Variables in Streams of South Korea." Insects 9, no. 4: 152.

Journal article
Published: 17 September 2018 in Forests
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Biodiversity in forests is strongly affected by forest management practices, such as clearcutting and aggregated retention. Therefore, the assessment of the effects of forest management on biodiversity is a major concern in forest ecology. In the present study, we aimed to characterize the effects of forest management practices, after one year, on the abundance, species richness, community composition, and functional groups of moths in forests. The moths were sampled in four different forest stands: three stands (clearcutting, aggregated retention, and no cutting) in a planted Japanese larch forest and one stand in a natural Mongolian oak forest. The results revealed that the moth communities changed in response to the changes in vegetation after the implementation of forest management practices, and clearcutting increased the abundance and species richness of herbivorous and warm-adapted species. The structure and function of moth communities were affected by the forest management practices such as clearcutting and aggregated retention, which were reflected by a decrease in community indices and change in moth community composition with changes in vegetation.

ACS Style

Mi Young Moon; Sung-Soo Kim; Dae-Seong Lee; Hee Moon Yang; Chan-Woo Park; Hyun Seop Kim; Young-Seuk Park. Effects of Forest Management Practices on Moth Communities in a Japanese Larch (Larix kaempferi (Lamb.) Carrière) Plantation. Forests 2018, 9, 574 .

AMA Style

Mi Young Moon, Sung-Soo Kim, Dae-Seong Lee, Hee Moon Yang, Chan-Woo Park, Hyun Seop Kim, Young-Seuk Park. Effects of Forest Management Practices on Moth Communities in a Japanese Larch (Larix kaempferi (Lamb.) Carrière) Plantation. Forests. 2018; 9 (9):574.

Chicago/Turabian Style

Mi Young Moon; Sung-Soo Kim; Dae-Seong Lee; Hee Moon Yang; Chan-Woo Park; Hyun Seop Kim; Young-Seuk Park. 2018. "Effects of Forest Management Practices on Moth Communities in a Japanese Larch (Larix kaempferi (Lamb.) Carrière) Plantation." Forests 9, no. 9: 574.

Journal article
Published: 27 November 2017 in Water
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Aquatic oligochaetes are very common in streams, and are used as biological assessment indicators as well as in the biological management of organic-enriched systems. In this study, we analyzed the effects of environmental factors influencing the distribution of aquatic oligochaetes Limnodrilus hoffmeisteri in streams. We used 13 environmental factors in three categories (i.e., geography, hydrology, and physicochemistry). Data on the distribution of oligochaetes and environmental factors were obtained from 1159 sampling sites throughout Korea on a nationwide scale. Hierarchical cluster analysis (HCA) and nonmetric multidimensional scaling (NMDS) were performed to analyze the relationships between the occurrence of aquatic oligochaetes and environmental factors. A random forest model was used to evaluate the relative importance of the environmental factors affecting the distribution of oligochaetes. HCA classified sampling sites into four groups according to differences in environmental factors, and NMDS ordination reflected the differences of environmental factors, in particular, water depth, velocity, and altitude, among the four groups defined in the HCA. Furthermore, using a random forest model, turbidity and water velocity were evaluated as highly important factors influencing the distribution of L. hoffmeisteri.

ACS Style

Hyejin Kang; Mi-Jung Bae; Dae-Seong Lee; Soon-Jin Hwang; Jeong-Suk Moon; Young-Seuk Park. Distribution Patterns of the Freshwater Oligochaete Limnodrilus hoffmeisteri Influenced by Environmental Factors in Streams on a Korean Nationwide Scale. Water 2017, 9, 921 .

AMA Style

Hyejin Kang, Mi-Jung Bae, Dae-Seong Lee, Soon-Jin Hwang, Jeong-Suk Moon, Young-Seuk Park. Distribution Patterns of the Freshwater Oligochaete Limnodrilus hoffmeisteri Influenced by Environmental Factors in Streams on a Korean Nationwide Scale. Water. 2017; 9 (12):921.

Chicago/Turabian Style

Hyejin Kang; Mi-Jung Bae; Dae-Seong Lee; Soon-Jin Hwang; Jeong-Suk Moon; Young-Seuk Park. 2017. "Distribution Patterns of the Freshwater Oligochaete Limnodrilus hoffmeisteri Influenced by Environmental Factors in Streams on a Korean Nationwide Scale." Water 9, no. 12: 921.

Journal article
Published: 30 October 2017 in Forests
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We characterized the dispersal patterns of pine wilt disease (PWD) in the early stage of its invasion in the South Korea, and estimated the influence of environmental factors on the dispersal of PWD. Data were obtained in 10 regions with at least five consecutive years of data for 10 years from 1994 to 2005. The dispersal patterns of PWD were categorized into four types: type 1 is a jumping type of dispersal, forming new patches; type 2 infestations are ones without any expansion of patch size; and types 3 and 4, respectively, show uni-directional or multi-directional dispersal outward from an existing patch. Dispersal patterns changed during different phases of the pathogen’s invasion history: type 1 was the most frequent in the early invasion stage. Annual dispersal distance showed regional variations. Human population density had a positive correlation with the dispersal distance of PWD, indicating that anthropogenic factors can contribute to the dispersal of PWD. Our results suggested that dispersal through jumping from areas occupied by PWD was the main dispersal route in the early stage of invasion and that after this phase, the existing colonies expanded and merged. These results supported the existence of stratified dispersal patterns of PWD.

ACS Style

Won Il Choi; Hye Jung Song; Dong Soo Kim; Dae-Sung Lee; Cha-Young Lee; Youngwoo Nam; Joon-Bum Kim; Young-Seuk Park. Dispersal Patterns of Pine Wilt Disease in the Early Stage of Its Invasion in South Korea. Forests 2017, 8, 411 .

AMA Style

Won Il Choi, Hye Jung Song, Dong Soo Kim, Dae-Sung Lee, Cha-Young Lee, Youngwoo Nam, Joon-Bum Kim, Young-Seuk Park. Dispersal Patterns of Pine Wilt Disease in the Early Stage of Its Invasion in South Korea. Forests. 2017; 8 (11):411.

Chicago/Turabian Style

Won Il Choi; Hye Jung Song; Dong Soo Kim; Dae-Sung Lee; Cha-Young Lee; Youngwoo Nam; Joon-Bum Kim; Young-Seuk Park. 2017. "Dispersal Patterns of Pine Wilt Disease in the Early Stage of Its Invasion in South Korea." Forests 8, no. 11: 411.