Papers - MASUDA Michiko
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RESULTS OF RECOVERY PROJECT ON WETLANDS WITH LOST BIODIVERSITY Reviewed
Michiko Masuda, Koichi Nagarekawa, Fumitake Nishimura
Proceedings of GEOMATE 1 ( 1 ) 444 - 449 2022.11
Authorship：Lead author Language：English Publishing type：Research paper (international conference proceedings)
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THE ENVIRONMENTAL PARAMETERS CONTROLLING THE HABITAT OF INVASIVE ALIEN SPECIES, SPARTINA ALTERNIFLORA IDENTIFIED BY PREDICTIVE MODELING. Reviewed International journal
Michiko Masuda, Tetsuya Morioka, Fumitake Nishimura
International Journal of GEOMATE 20 ( 79 ) 146 - 152 2021.04
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
Spartina alterniflora introduced worldwide has impacted local Japanese ecosystems. Then the management methods of the species are seriously required. In 2019, the invasion of the species was reported at Aichi Prefecture, Japan. The vegetation of the species was grown up to 449 m2 for 5 years. However, the relationship between the habitation of the species and environmental factors remains unclear. Therefore, we made a habitat prediction model using GLM (general linear model) to define the environment of the S. alterniflora habitat of Aichi Pref., incorporating data in 2019. That measured population density, location, ignition loss of physical environmental data, pH, NaCl concentration and altitude over the sea level by us. Our analysis showed that the standardization parameter altitude over the sea level was the main effect in the predictive model (estimate 4.158) and had the greatest absolute value. And the Wald value is significantly large (42.426). Secondary the reciprocal relationship expression between the altitude and pH was high value, 1.007. The species likes the habitat that altitude is high and pH is 7.1-7.3. For the GLM, we made the distribution for the species, the reappearance is well done. Then the avoidance of the species expansion, the bank of the tidal area should erase the higher riverbed
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THE HABITAT CONDITION ANALYSIS OF LUEHDORFIA JAPONICA, THE SIMBOL OF CONSERVATION AREA Reviewed International coauthorship International journal
Michiko Masuda, Yoriko Gido, Yukimaru Tashiro, Atsushi Tanaka, and Fumitake Nishimura
International Journal of GEOMATE 18 ( 67 ) 142 - 147 2020.02
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
里山管理が生物多様性に及ぼす影響について評価し、どのような管理をしたら、生物多様性が復元できるかについての実験と解析
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THE MANAGEMENT OF RIVERBANK MAINTAINS THE DUNE PLANT POPULATION, AN ENDANGERED SPECIES, FIMBRISTYLIS SERICEA. Reviewed International journal
Michiko Masuda, Sota Yotsuya and Fumitake Nishimura
International Journal of GEOMATE 16 ( 57 ) 124 - 129 2019.05
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
The habitat of riverbank dune nurses several endangered species. Why did this area maintaine endangered species despite of invasion of alien species? Then growth of an endangered species (Fimbristylis sericea) and an alien species (Diodia teres) was studied in a greenhouse experiment in which the species were grown alone or together and the resultant effects of shoot and root competition were assessed. In the alone growth experiment, the survival rates of the both species were same. In the shoot competition experiment, the D. teres reduced growth rate of F. sericea. In the root competition experiment, the F. sericea reduced growth rate of D. teres. In the total competition, F. sericea were superior to D. teres. From the experiments, F. sericea was more competitive than D. teres under the waterless same habitat. D. teres was more competitive than F. sericea under the waterrich condition. The habitat of riverbank dune is always affected strong wind, than the disturbance of sand moving. When D. teres is grown up, the sand moving prevented growth of D. teres. In the long term, the vegetation succession will reduce the disturbance frequency and will be occurred the extinction of endangered species.
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Genetic diversity at each habitat of Pseudolabrus sieboldi, usual fish species in a western Japan coastal area. Reviewed International coauthorship International journal
Michiko Masuda, Wataru Kawase and Fumitake Nishimura
International Journal of GEOMATE vol. 15 ( (49) ) 53 - 58 2018
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
Genetic diversity at each habitat of Pseudolabrus sieboldi, usual fish species in a western Japan coastal area is very specified in Each area. Especialy Pacific ocean side is highly diversed than the other area.
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GENETIC DIVERSITY OF PSEUDOLABRUS SIEBOLDI, USUAL FISH SPECIES IN A WESTERN JAPAN COASTAL AREA Reviewed International journal
Michiko Masuda, Fumitake Nishimura, Wataru Kawase
Seventh International Conference on Geotechnique, Construction Materials and Environment 2017.11
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
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GENETIC DIVERSITY AND GENETIC STRUCTURE OF AN ENDANGERED SPECIES, ERIOCAULON NUDICUSPE, GROWING IN ARTIFICAL DISTURBING HABITATS Reviewed International coauthorship International journal
Michiko Masuda, Tadamasa Fukagawa and Fumitake Nishimura
Sixth International Conference on Gotechnique, Construction Materials and Environment, Bangkok, Thailand, Nov. 14-16. 2016.11
Authorship：Lead author Language：English Publishing type：Research paper (international conference proceedings)
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Genetic diversity of restored endangeredspecies, Penthorum chinense in the riverbed. Reviewed
International Journal of GEOMATE 10 ( 2 ) 1810 - 1814 2015.04
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
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INFLUENCE OF LIGHT ON MICROBIAL RIVER WATER ECOSYSTEM AND ITS SELF-PURIFICATION POTENTIAL Reviewed International journal
Fumitake Nishimura, Yuki Koike and Michiko Masuda
International Journal of GEOMATE 20 ( 81 ) 146 - 152 2021.06
Language：English Publishing type：Research paper (scientific journal)
Self-purification at rivers is mainly conducted by microorganisms attached on river bed. In order to enhance
the self-purification capacity, several process or technologies have been proposed for improvement of river water
quality and preservation of bio-diversity. From the viewpoints of environmental engineering, finding influential
parameters and their effective control are effective to improve river water quality. However, there are a lot of
parameters affecting self-purification capacity at rivers, and quantitative evaluation of these parameters have not
been completed. In this study, influence of light on both microbial river water ecosystem and its self-purification
capacity are investigated. There are several type of water purification facilities incorporated in rivers in order to
improve river water quality and maintain bio-diversity. Most of the cases, light (sun light) is not blocked, and the
light might affect microbial community and structure by photo synthesis.
Lab-scale experimental facilities (artificial river) are set, and artificial contaminated river water are introduced
to the system. Light irradiation stimulates algal activity and affects the composition of the other microorganisms
such as bacteria and zooplankton. By mass balance analysis of carbon, it is made clear that amount of organic
carbon accumulated in the river under lighting condition becomes almost double compared with the case under
dark condition. It is suggested that clean river water condition can be affected by light more than contaminated
river water condition because of the large relative intensity of organic carbon loading by photo synthesis. -
ENVIRONMENTAL PARAMETERS CONTROLLING THE HABITAT OF THE BRACKISH WATER CLAM CORBICULA JAPONICAIDENTIFIED BY PREDICTIVE MODELLING. Reviewed International journal
Yukari Sugiyama, Mikio Nakamura, Suguru Senda and Michiko Masuda
Inter National Journal of GEOMATE 17 ( 59 ) 68 - 73 2019.06
Language：English Publishing type：Research paper (scientific journal)
The C. japonica is an ecologically important species in estuaries and brackish waters, as well as a very important fishery resource. However, the relationship between its habitation conditions and environmental factors remains unclear. We therefore made a habitat prediction model using GLM to define the environment of the C. japonica habitat of Lake Shinji, incorporating data acquired from 1982 through 1983 which measured population density, location, silt/clay content, ignition of physical environmental data, pH, dissolved O2 density, chloride ion concentration, and COD of the quality of the water. Our analysis showed that the standardization parameter ignition loss, measuring organic matter and carbonate content in the sediment, was the main effect in the predictive model (estimate -2.22) and had the greatest absolute value. Thus the C. japonica's distribution is dependent on ignition loss, in the predictive model. As for interaction terms modifying distribution, the dissolved O2 and silt/clay content ratio had the largest absolute value at -2.12. In addition, it was revealed that the environmental factors which limit population levels of the C. japonica every season are different. These results, while derived from C. japonica, also suggest that our GLM model is effective to more fully understand the habitation area of immobile benthoses in general.
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Ammonia removal characteristics of porous concrete with zzeolite for enhancing self-purification ability in river system Reviewed
Fumitake Nishimura, Toshio Yamada, Motohiro, Tanaka, Hirofumi Kasai, Michiko Masuda.
International Journal of GEOMATE 10 ( 4 ) 2045 - 2050 2015.04
Language：English Publishing type：Research paper (scientific journal)
ゼオライトを利用したコンクリートの中性化により、河川の環境に及ぼす影響についての評価分析。
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Prosal for a conservation policy for endangered species, Pyrus callryana ‘Conservation Guideline for Pyrus callryana’ Reviewed
Naoya Motoori, Kayo Hasegawa, Michiko Masuda, Teruhiko Hironaga, Hisashi Imaeda
Bulletin of Nagoya Biodiversity Center 12 - ** 2025.03
Authorship：Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)
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A STUDY ON PRIORITIZATION OF RESTORATION TREATMENT OF TRANSITIONAL WETLANDS Reviewed
Michiko Masuda, Takumi Yokoyama, Futmitake Nishimura
Interenational conference of GEOMATE 2023 1 ( 1 ) 2023.11
Authorship：Lead author Language：English Publishing type：Research paper (international conference proceedings)
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What is the biodiversity? smallness maintains the biodiversity Invited
Michiko Masuda
Trans/actions * ( 3 ) 81 - 101 2018.12
Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Nagoya institute of technology
The maintenance of the biodiversity is mainly affected by sub populations. Sub population can be escaped from the stochasitiy or extinction. The smallness is very important of the genetic diversity.
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GENETIC DIVERSITY AND GENETIC STRUCTURE OF AN ENDANGERED SPECIES, ERIOCAULON NUDICUSPE, GROWING IN ARTIFICAL DISTURBING HABITATS Reviewed International coauthorship International journal
Michiko Masuda, Fumitake Nishimura, Tadamasa Fukagawa
International Journal of GEOMATE 13 ( 35 ) 136 - 143 2017.07
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
Other Link： http://dx.doi.org/10.21660/2017.35.6626
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Ammonia Removal Characteristics of porous concrete with zeolite for enhancing self-purification ability in river system
F. Nishimura, T. Yamada, M. Tuneba, H. Kassair and M. Masuda
Int. Conf. GEOMATE ７ ( １ ) ４３９ - ４４５ 2014.11
Language：English Publishing type：Research paper (scientific journal)
河川環境におけるアンモニア汚染負荷がどのようにシステムの中で流出するかについての解析
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Seasonal variation of the alien plants invasion into river ecosystem.
Michiko Masuda, Fumitake Nishimura
Int. Conf. GEOMATE 6 ( 1 ) 464 - 471 2014.11
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
河川環境の復元効果について種子による繁殖に着目した植生回復調査
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CHARACTERISTICS OF NUTRIENTS RUNOFF FROM SIGENOBU RIVER BASINS Reviewed
Fumitake NISHIMURA1, Takanobu SHIMADA2, Michiko MASUDA3 and Masahiro WATANABE4
Japanese Jounal of Civil engineering 70 ( 4 ) 1225 - 1230 2014.02
Language：Japanese Publishing type：Research paper (scientific journal)
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IMPACT OF FLOOD DISTURBANCE EVALUATION ON THE STRUCTURES OF GROUND-BEETLE ASSEMBLAGE AT BIOTOPES Reviewed
Michiko Masuda1, Rina Sakakibara1, Nao Sugimura1 and Fumitake Nishimura2
Int. J. of GEOMATE 5 ( 9 ) 627 - 632 2013.09
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
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Change in structure of ground-beetle assemblage on river areas after construction of biotopes using the technique, "Nature oriented river works". Reviewed
Michiko Masuda, Takaaki Tsukada, Fumitake Nishimura
Second International Conference on Geotechnique, Construction Materials and Environment. 2 ( 1 ) 839 - 844 2012.11
Authorship：Lead author Language：English Publishing type：Research paper (international conference proceedings)
庄内川河川敷に設置されたビオトープの自然環境条件について、地表性昆虫を用いて評価する手法について開発を行い、地表性昆虫が十分に評価するのに適切であることを示した。
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