Research field (2)：
Animals: biochemistry, physiology, behavioral science
, Entomology
Research keywords (6)：
Alien species
, オープンサイエンス
, 光周性
, 低温耐性
, ナメクジ
, 季節適応
Research theme for competitive and other funds (5)：
2023 - 2024 大型在来種ヤマナメクジが森林の多様性に果たす役割の解明
2019 - 2022 ナメクジ類における種構成変化の要因解明にむけて
2018 - 2019 在来種ヤマナメクジ種群の分類学的基盤の確立
2015 - 2018 The distribution and effect of a new alien terrestrial slug
2014 - 2018 Molecular and neural mechanisms of photoperiodism in the bean bug, Riptortus pedestris
Papers (20)：
Lauren T. Gill, Hiroko Udaka, Katie E. Marshall. The cold tolerance of the terrestrial slug, Ambigolimax valentianus. Journal of Comparative Physiology A. 2025
宇高寛子. 昆虫の越冬と低温耐性. 昆虫と自然. 2024
Hiroko Udaka. Overwintering strategy in terrestrial slugs. Low Temperature Science. 2023. 81. 11-18
Kento Ikeda, Takaaki Daimon, Kunihiro Shiomi, Hiroko Udaka, Hideharu Numata. Involvement of the Clock Gene Period in the Photoperiodism of the Silkmoth Bombyx mori. Zoological Science. 2021. 38. 6. 523-530
Li Dong, Hiroko Udaka, Hideharu Numata, Chihiro Ito. Regulation of Krüppel homolog 1 expression by photoperiod in the bean bug, Riptortus pedestris. Physiological Entomology. 2021. 46. 1. 82-93
Udaka H., Numata H. P19. Life cycle of the terrestrial slug Lehmannia valentiana in Osaka, Japan and its control by photoperiod and temperature(Abstracts of Papers Presented at the 2006 Annual Meeting of the Malacological Society of Japan (Tokyo)). Venus : journal of the Malacological Society of Japan. 2006. 65. 3. 288-288
