• Title/Summary/Keyword: Korea forest plant

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Inverse Relationship of Hemiptera Richness with Temperature in South Korea

  • Kwon, Tae-Sung;Jung, Sungcheol;Park, Young-Seuk
    • Korean Journal of Ecology and Environment
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    • v.54 no.2
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    • pp.102-107
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    • 2021

  • The distribution pattern of species richness was determined by temperature. To examine the relationship between hemipteran richness and temperature, hemipteran species were collected using pitfall traps at six different oak forest sites with different annual mean temperatures in South Korea. Multiple linear regression analyses were conducted with mean annual temperature (MAT) and plant richness to evaluate differences in hemipteran richness. The influences of MAT and plant richness of study sites on hemipteran richness were examined by comparing three models (plant richness+MAT+MAT2, plant richness+MAT, and MAT) or two models (plant richness+MAT and MAT). Hemipteran richness showed an inverse diversity pattern as a function of temperature, with higher species richness at lower temperature sites. Meanwhile, Aphididae showed a bell-shaped diversity pattern with the highest value at low medium temperatures. The regression analysis showed that hemipteran richness was affected by temperature and plant richness in their habitats.

  • https://doi.org/10.11614/KSL.2021.54.2.102 인용 PDF KSCI

Notes on Sparganium coreanum (Typhaceae) rediscovered on the Korean Peninsula

  • HA, Young-Ho;GIL, Hee-Young;LEE, Jungsim;LEE, Kang-Hyup;LEE, Dong-Hyuk;SON, Dong Chan;CHANG, Kae Sun
    • Korean Journal of Plant Taxonomy
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    • v.49 no.3
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    • pp.203-208
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    • 2019

  • Sparganium coreanum, a barely recognized species in Korea, was rediscovered during a field survey by the authors, who conducted a re-examination of specimens deposited in the Herbarium of the Korea National Arboretum (KH). This species was described initially by H. $L{\acute{e}}veill{\acute{e}}$ from a specimen collected by F. Taquet from Jeju-do (Taquet 2150). Subsequently, however, it was overlooked and unrecognized among South Korean flora. Several populations of S. coreanum were found in the southern part of the Korean Peninsula and on Jeju-do, although it has long been recognized as S. erectum owing to certain vegetative morphological characteristics shared between the two species, such as robust stems, a similar plant height, and globose rhizomes. However, it is distinct from S. erectum by the number of female heads on the lowest inflorescence branch and the size and shape of the fruit. In this study, we provide a detailed description, illustrations, and photographs with a revised taxonomic key for identification of Sparganium species in Korea.

  • https://doi.org/10.11110/kjpt.2019.49.3.203 인용 PDF KSCI

Report of Invasive Alien Plant, Commelina caroliniana, (Commelinaceae) in Korea

  • Eun Su Kang;Kang-Hyup Lee;Soo-Rang Lee;Dong Chan Son
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2020.08a
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    • pp.15-15
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    • 2020

  • Commelina caroliniana Water, was founded in Jongdal-ri (Gujwa-eup, Jeju Island) for the first time, is widely distributed arable land near the coast and roads. C. caroliniana belongs to Commelinaceae and native to Bangladesh, India. This species can be distinguished from its allied species in Korea by several characters as followings: apex acuminate and obovate shape spathes, flowers have blue 3 petals, maroon spot on the antherode, fruit with 5 seeds in 3 ovaries. C. caroliniana is well known for its strong fertility, which can outcompate native grasses and further negatively effect on the grassland ecosystem. The species has already introduced and widely distributed across much of southeastern US and some of Asian countries. Considering the case of C. caroliniana's diffusion capacity and influence on the ecosystem, management system for prevent their spreading are required through monitoring. Given the great potential of spread found in C. caroliniana, continuous monitoring may be required.

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