Ohigashi, T., Yoo, K, Uchida, Y., Ishii S., “Impacts of earthworm invasion on activities of soil nitrification in a northern hardwood forest in Minnesota, USA”, The 36th Annual Meeting of Japanese Society for Microbial Ecology & The 13th Asian Symposium on Microbial Ecology → the PhD-student Poster Award

Ohigashi, T., Yoo, K., Ishii, S., Uchida, Y., “The vertical differences in habitat among earthworm types resulted in variations in gut bacterial communities, potentially leading to the alteration of nitrogen cycling by invasive earthworms in North America”, the ASA, CSSA, SSSA Annual Meeting, Poster, Missouri, the USA

Ohigashi, T., Yoo, K., Venterea, R., Uchida, Y., Ishii, S., "Impacts of earthworm invasion on nitrification in a northern hardwood forest in Minnesota", the 82nd American Society for Microbiology North Central Branch Annual Meeting, Oral, Iowa, the USA, October 2022

Ohigashi, T., Mori, S., Tago, K., Uchida, Y., "Changes in community structures and activities of soil ammonia-oxidizing bacteria and archaea by land-use changes in multiple sites in Zambia", World Congress of Soil Science, Online Poster, Glasgow, the UK, August 2022

Soe, N., Ohigashi, T., Nakata, H., Tatsumi, C., Uchida, Y., Mufalo, W., Ito, M., Sato, T., Igarashi, T., Yohannes, Y., Ikenaka, Y., Ishizuka, M., Nakayama, S., “In vivo accumulation of different lead species in mice under environmentally relevance circumstance”, The Japanese Society of Toxicology, Poster, Sapporo, Japan, July 2022

Ohigashi, T., Tatsumi, C., Yamamoto, T., Soe, N., Nakata, H., Nakayama, S., Ishizuka, M., Uchida, Y., "Changes in the soil microbial-driven nitrogen cycle by the presence of mice in heavy metal contaminated and organic amended soils", Ecological Society of Japan, Online Oral, Fukuoka, Japan, March 2022

Takahashi, G., Tatsumi, C., Ohigashi, T., Madegwa, Y., Uchida, Y., "Impact of earthworms and plants on fungal and bacterial diversity in the area of soil compartments", Ecological Society of Japan, Online Poster, Fukuoka, Japan, March 2022

Ohigashi, T., Mori, S., Uchida, Y., "Site-dependent and land-use effects on community structures and activities of ammonia-oxidizing bacteria and archaea in Zambian soils", Japanese Society of Soil Science and Plant Nutrition, Online Poster, Sapporo, Japan, September 2021

Ohigashi, T., Uchida, Y., "Effects of cultivation on soil microbial community structures and functions related to nitrogen cycle in sub-Saharan Africa", Eurosoil, Online Poster, Geneva, Switzerland, August 2021

Mori, S., Ohigashi, T., Uchida, Y., "Evaluation of the effect of cultivation on nitrification potential and on the nitrifier abundance and community structure in Zambia", Ecological Society of Japan, Online Poster, Okayama, Japan, March 2021

Ohigashi, T., Uchida, Y., "Can soil microbes increase their diversity despite nutrient loss? —study on effects of cultivation in sub-Saharan Africa—", Ecological Society of Japan, Online Oral, Okayama, Japan, March 2021
​→ won the English Presentation Audience Award

Ohigashi, T., "Relation between cultivation and changes in soil microbial communities in sub-Saharan Africa", Soil microbe × Nutrient cycling workshop, Poster, Sapporo, Japan, January 2021

Ohigashi, T., Uchida, Y., "Can soil microbes increase their diversity despite soil degradation?", The International Symposium on A Green Recovery from COVID-19, Oral, Sapporo, Japan, November 2020
→ won the excellent student presentation award

Ohigashi, T., Uchida, Y., "Influence of cultivation on soil microbial diversity and composition of nitrification-related microbes in sub-Saharan Africa", Soil Science Society of America International Annual Meeting, Online Oral, November 2020

Ohigashi, T., Uchida, Y., "Changes in the microbial diversity and the abundances of nitrification-related microbes by the cultivation in sub-Saharan Africa", Japanese Society of Soil Science and Plant Nutrition, Online Poster, Okayama, Japan, September 2020

Ohigashi, T., Uchida, Y., "Effects of cultivation on nitrogen cycle-related function of soil microbes in sub-Saharan Africa", Ecological Society of Japan, Oral (Canceled due to the COVID-19), Nagoya, Japan, March 2020

Ohigashi, T., Uchida, Y., "Effects of cultivation on soil microbial function in sub-Saharan Africa", Ecological Society of Japan (Hokkaido part), Poster, Tomakomai, Japan, November 2019

Ohigashi, T., Uchida, Y., "Effects of cultivation on microbial community structures and functions in sub-Saharan Africa", International Symposium on Biodiversity in the Global Food System, Poster, Sapporo, Japan, July 2019

Ohigashi, T., Sonoyama, K., "Hypoxia and inflammation in browning induction in murine white adipose tissues", 73th Japan Society of Nutrition and Food Science, Oral/Poster, Shizuoka, Japan, May 2019