Masaru Hasegawa, Emi Arai, Masahiko Nakamura. Good sperm producers are more likely to participate in incubation in the Asian barn swallow Hirundo rustica gutturalis. Behavioural Processes. 2025. 226. 105173-105173
Masaru Hasegawa. Flight performance evolved with forked tails and opportunities for extrapair mating in swallows. Evolutionary Ecology. 2025
Emi A. Hasegawa, Jun Matsubayashi, Ichiro Tayasu, Tatsuhiko Goto, Haruka Inoue, Axel G. Rossberg, Chikage Yoshimizu, Masaru Hasegawa, Takumi Akasaka. Isotope analysis of birds’ eye lens provides early-life information. Progress in Earth and Planetary Science. 2025. 12. 1
Emi Arai, Masaru Hasegawa, Chikage Yoshimizu, Naoto F Ishikawa, Naohiko Ohkouchi, Ichiro Tayasu. Divergent ornamentation within a single population of the barn swallow. Journal of Evolutionary Biology. 2024
Masaru Hasegawa. Occurrence and persistence of pseudo-tail spots in the barn swallow. Ecology and Evolution. 2024. 14. 7