<About my researches>

1. Migration in birds

     Material: Eastern buzzard (Buteo japonicus)

2. Sex allocation in wind-pollinated plants

     Material: Common ragweed (Ambrosia artemisiifolia)

3. Habitat selection in birds

     Material: Eurasian magpie (Pica pica), Fan‐tailed Gerygone (Gerygone flavolateralis), Grey fantail (Rhipidura albiscapa), Streaked fantail (Rhipidura verreauxi) and Eastern buzzard (Buteo japonicus)

<Publications & presentations>

Paper

Yamaguchi N. M.*, Amano T., Kimura T, Mine R-i., Otsuki K., Yamaguchi E. and Nakahara T. (2024) Discovery of a new breeding site for the endangered Japanese Murrelet Synthliboramphus wumizusume in Nagasaki, Japan. Marine Ornithology 52: 23-26.

Nakahara T.*, Miyahara K., Morimoto Y. and Nagai K. (2024) Expansion of the range of the Light-vented Bulbul Pycnonotus sinensis into mainland Japan. Ornithological Science 23: 3-12.

Kongsurakan P., Nakahara T.* and Yamaguchi N. M. (2023) Impacts of depredation by Large-billed Crows Corvus macrorhynchos on the colony of Japanese Murrelets Synthliboramphus wumizusume at Eboshijima, Japan. Marine Ornithology 51: 169-178.

Nakahara T., Nagai K., Iseki F., Yoshioka T., Nakayama F. and Yamaguchi N. M. (2022) GPS tracking of the two subspecies of the Eastern Buzzard (Buteo japonicus) reveals a migratory divide along the Sea of Japan.  IBIS 164: 1192-1200.

Nakahara T., Junnosuke H., Booton R. and Yamaguchi R. (2020) Extra molting, cannibalism and pupal diapause under unfavorable growth conditions in Atrophaneura alcinous (Lepidoptera: Papilionidae). Entomological Science 23: 57-65.

Nakahara T., Fukano Y. and Yahara T. (2018) Effects of apical damage on plant growth and male and female reproductive investments in Ambrosia artemisiifolia, a wind-pollinated plant. Plant Ecology 219: 853-862.

Nakahara T., Fukano Y., Hirota S. K. and Yahara T. (2018) Size advantage for male function and size-dependent sex allocation in Ambrosia artemisiifolia, a wind-pollinated plant. Ecology and Evolution 8: 1159–1170.

Nakahara T., Kuroe M., Hasegawa O., Hayashi Y., Mori S. and Eguchi K. (2015)  Nest site characteristics of the newly established Eurasian Magpie Pica pica population in Hokkaido, Japan. Ornithological Science 14: 99-109.

Okahisa Y., Nakahara T., Sato N. J., Theuerkauf J. and Ueda K. (2015)  Puddle use by New Caledonian rainforest birds.  Ornithological Science 14: 41-45.

Poster Session (international)

Nakahara T., Fukano Y., Hirota S.K. and Yahara T.  Stature effect as a cause of size-dependent sex allocation in wind-pollinated plants: Does male reproductive success really increase with plant height in Ambrosia artemisiifolia? Evolution meetings 2016, Austin, Texas, US, 2016.6

Nakahara T. and Eguchi K. Nest site selection of the exotic Eurasian Magpie (Pica pica) colonizing in the city of Tomakomai, south-western Hokkaido, Japan. The 26th International Ornithological Congress, Tokyo, Japan, 2014.8

Sato N. J., Okahisa Y., Kamioki M. ,Nakahara T., Tanaka K. D., Theuerkauf J. and Ueda K.  Evolution of bronze-cuckoo nestling ejection in Gerygone hosts: driven by the egg dilution effect? The 26th International Ornithological Congress, Tokyo, Japan, 2014.8

Nakahara T., Hasegawa O., Hayashi Y., Mori S. and Eguchi K. Nest site selection of an expanding exotic Black-billed Magpie (Pica pica) population in Hokkaido. The 59th Annual Meeting of the Ecological Society of Japan (日本生態学会第59回全国大会)/ The 5th EAFES International Congress, Otsu, Japan, 2012.3