Bipartite network analysis of ant-task associations reveals task groups and absence of colonial daily activity.
Fujioka H, Okada Y, Abe MS.
Royal Society Open Science (2021) 8: 201637.
https://doi.org/10.1098/rsos.201637

オオツノコクヌストモドキにおける武器特異的な栄養応答のメカニズム
蚕糸・昆虫バイオテック (Sanshi-Kontyu Biotec) (2020) 89(3) 139-144.
岡田泰和・岡本直樹

Polyandry and paternity affect disease resistance in eusocial wasps.
SagaT*, Okuno M, Loope K.J., Tsuchida K, Ohbayashi K, Shimada M, Okada Y.
Behavioral Ecology (2020) 31-5, Pages 1172–1179 https://doi.org/10.1093/beheco/araa062

Older males are more competitive in male fights and more aggressive towards females in the broad-horned flour beetle Gnatocerus cornutus
Okada K, Katsuki M, Kiyose K, Okada Y
Behavioral Ecology & Sociobiology (2020) 74:36 https://doi.org/10.1007/s00265-020-2815-4

A specific type of insulin-like peptide regulates the conditional growth of a beetle weapon.
Okada Y*, Katsuki M, Okamoto N, Fujioka H, Okada K.
PLOS Biology (2019) 17(11): e3000541.

Commentary
RE: Evolution of eusociality via a single gene (ilp2)?
Schultner E, Helanterä H, Okada Y, Oettler J.
Science, eLetters (14 Apr 2019)

Liquid exchange via stomodeal trophallaxis in the ponerine ants Diacamma sp. from Japan.
Fujioka H, Okada Y.
Journal of Ethology (2019) 1-5.

Loser-effect duration evolves independently of fighting ability.
Okada K, Okada Y, Dall S, Hosken D.
Proceedings of the Royal Society B (2019) 286: 20190582

Observation of plugging behaviour reveals entrance-guarding schedule of morphologically specialised caste in Colobopsis nipponicus.
Fujioka H, Abe MS, Okada Y.
Ethology (2019) 125: 526-534

Ant activity-rest rhythms vary with age and interaction frequencies of workers.
Fujioka H, Abe MS, Okada Y*.
Behavioral Ecology and Sociobiology (2019) 73.3: 30.

Rapid development and characterization of EST-SSR markers for the honey locust seed beetle, Megabruchidius dorsalis (Coleoptera: Bruchidae), using de novo transcriptome analysis based on next-generation sequencing.
Ohbayashi K, Ishikawa N, Hodoki Y, Okada Y, Nakano S, Ito M, Shimada M.
Applied Entomology and Zoology (2019) 54(1), 141-145.

Social dominance alters nutrition-related gene expression immediately: transcriptomic evidence from a monomorphic queenless ant.
Okada Y*, Watanabe Y, Mandy MYT, Tsuji K, Mikheyev AS*.
Molecular Ecology (2017) 26: 2922-2938.

Ant circadian activity associated with brood care type.
Fujioka H, Abe MS, Fuchikawa T, Tsuji K, Shimada M, Okada Y*.
Biology Letters (2017) 13: 20160743.

Queen contact and among-worker interactions dually suppress worker brain dopamine as a potential regulator of reproduction in an ant.
Shimoji H*, Aonuma H, Miura T, Tsuji K, Sasaki K, Okada Y*.
Behavioral Ecology and Sociobiology (2017) 71: 35.

Mutual intra- and interspecific social parasitism between parapatric sister species of Vespula wasps.
Saga T, Kanai M, Shimada M, Okada Y.
Insectes Sociaux (2017) 64: 95

Histone deacetylases control module-specific phenotypic plasticity in beetle weapons.
Ozawa T, Mizuhara T, Arata M, Shimada M, Niimi T, Okada K, Okada Y*, Ohta K*.
Proceedings of the National Academy of Sciences (2016) 113: 15042-15047.

Social dominance and reproductive differentiation mediated by the dopaminergic signaling in a queenless ant.
Okada Y*, Sasaki K, Miyazaki S, Shimoji H, Tsuji K, Miura T.
Journal of Experimental Biology (2015) 218, 1091-1098

Environmental factors that affect pupation decision in the horned flour beetle Gnatocerus cornutus.
Ozawa T, Ohta K, Shimada M, Okada K, Okada Y*
Zoological Science (2015) 32(2), 183-187

Social dominance modifies behavioral rhythm in a queenless ant.
Fuchikawa T#, Okada Y#*, Miyatake T, Tsuji K (#equal contribution)
Behavioral Ecology and Sociobiology (2014) 68(11), 1843-1850.

Relationships among male sexually selected traits in the bean bug Riptortus pedestris (Heteroptera: Alydidae).
Suzaki Y, Katsuki M, Miyatake T, Okada Y
Entomological Science (2015) 18(2), 278-282.

Sexually-dimorphic body color is regulated by sex-specific expression of yellow gene in the ponerine ant, Diacamma sp.
Miyazaki S, Okada Y, Miyakawa H, Tokuda G, Cornette R, Koshikawa S, Maekawa K, Miura T.
PLoS ONE (2014) 9(3): e92875

Male Courtship Behavior and Weapon Trait as Indicators of Indirect Benefit in the Bean Bug, Riptortus pedestris.
Suzaki Y, Katsuki M, Miyatake T, Okada Y.
PLoS ONE (2013) 8(12): e83278. doi:10.1371/journal.pone.0083278

Morphological variability of intercastes in the ant Temnothorax nylanderi: pattern of trait expression and modularity.
Okada Y, Plateaux L, Peeters C.
Insectes Sociaux (2013) 60: 319-328

Soldier morphogenesis in the damp-wood termite is regulated by the insulin signaling pathway.
Hattori A, Sugime Y, Sasa C, Miyakawa H, Ishikawa Y, Miyazaki S, Okada Y, Cornette Y, Corley L, Emlen DJ, Miura T.
Journal of Experimental Zoology Part B: Molecular and Developmental Evolution (2013) 320: 295-306

Impacts of diet quality on life-history and reproductive traits in male and female armed beetle, Gnatocerus cornutus.
Katsuki M, Okada Y, Okada K.
Ecological Entomology (2012) 37: 463-470.

Juvenile hormone mediates developmental integration between exaggerated traits and supportive traits in the horned flour beetle Gnatocerus cornutus.
Okada Y., Gotoh H., Miura T., Miyatake T., Okada K.
Evolution & Development (2012) 14: 363-371.

Effect of weapon-supportive traits on fighting success in armed insects.
Okada Y., Suzaki Y., Miyatake T., Okada K.
Animal Behaviour (2012) 83, 1001-1006

Male aggressive behavior and exaggerated hindlegs of the bean bug Riptortus pedestris.
Okada K., Suzaki Y., Okada Y., Miyatake T.
Zoological Science (2011) 28, 659-663

Immature performance linked with exaggeration of a sexually selected trait in an armed beetle.
Okada K., Katsuki M., Okada Y., Miyatake T.
Journal of Evolutionary Biology (2011) 24, 1737-1743

Juvenile hormone regulates extreme mandible growth in male stag beetles．
Gotoh H., Cornette R., Koshikawa S., Okada Y., Lavine L.C., Emlen D.J., Miura T.
PLoS One (2011) 6, e21139

Ovarian development and insulin-signaling pathways during reproductive differentiation in the queenless ponerine ant Diacamma sp.
Okada Y., Miyazaki S., Miyakawa H., Ishikawa A., Tsuji K., Miura T
Journal of Insect Physiology (2010) 56, 288-295

Morph-dependent form of asymmetry in mandible of the stag beetle Prosopocoilus inclinatus (Coleoptera: Lucanidae)
Okada Y*., Fujisawa H., Kimura Y., Hasegawa E.
Ecological Entomology (2008) 33, 684-689

Allometric dimorphism in the larvae of the salamander Hynobius retardatus.
Okada Y*. and Hasegawa E.
Ethology Ecology & Evolution (2007) 19, 113-126

Morphological differences between sexes in the ponerine ant Diacamma sp. (Formicidae: Ponerinae).
Okada Y*., Tsuji K. and Miura T.
Sociobiology (2006) 48, 527-541

Size-dependent precopulatory behavior as mate-securing tactic in the Japanese stag beetle, Prosopocoilus　inclinatus (Coleoptera; Lucanidae).
Okada Y*., Hasegawa E.
Journal of Ethology (2005) 23, 99-102

進化学会
IUSSI (国際社会性昆虫学会）

• 生態学実験（動物生態）
• 生態学概論
• 生態学各論
• 生態学野外実習
• Special Lecture in Ecology（生態学特別講義）
• Practices in Biology 1（生物学基礎演習1）
• Practices in Biology 2（生物学基礎演習2）
• 生態学実験（動物生態）
• 生態学概論1
• 生態学各論（個体群・行動・進化・実験生態学の諸概念）
• 生態学野外実習
• Special Lecture in Biology（生物学特別講義）
• Practices in Biology 1（生物学基礎演習1）
• Practices in Biology 2（生物学基礎演習2）
• 生命科学セミナー1（動物生態1）
• 生命科学セミナー1（動物生態1）
• 生命科学セミナー2（動物生態1）
• 生命科学セミナー2（動物生態1）
• 生命科学セミナー1（動物生態2）
• 生命科学セミナー1（動物生態2）
• 生命科学セミナー2（動物生態2）
• 生命科学セミナー2（動物生態2）
• 生命科学実験1（動物生態）
• 生命科学実験1（動物生態）
• 生命科学実験2（動物生態）
• 生命科学実験2（動物生態）
• 生態科学特別講義
• 生態科学特別講義
• 生命科学特別講義
• 生命科学特別講義
• 生態学特論
• 生態学特論
• 生態と環境

• 組織再編前旧課程の同時開講科目等が含まれており、掲載されている全ての科目を開講するわけではありません。