12月に千葉県房総半島でアカゲザルとニホンザルの交雑群の生息実態調査に参加し,糞試料を用いた遺伝的モニタリングを進めた.また,和歌山県ではタイワンザル交雑群の遺伝学的調査を継続している.倉敷で開催された第21回日本霊長類学会で自由集会を催しこれらの研究結果を発表した.また,札幌で開催された第9回国際哺乳類学会、タイのバンコクで開催された国際シンポジウムでも交雑問題に関する研究成果を発表した.さらに,交雑評価に利用できるNRAMP1(natural resistance-associated macrophage protein 1)のDNA変異について論文を公表した。下北半島のタイワンザル群の交雑状況に関する研究成果を論文として公表した.
Go, Y., Rakotoarisoa, G., Kawamoto, Y., Shima, T., Koyama, N., Randrianjafy, A., Mora, R., Hirai, H. (2005) Characterization and evolution of major histocompatibility comple class I genes in the aye-aye, Daubentonia madagascariensis. Primates 46(2): 135-139.
Hirai, H., Wijayanto, H., Tanaka H., Mootnick, A., Hayano, A., Perwitasari-Farajallah D., Iskandriati D., Sajuthi, D. (2005) A whole-arm translocation (WAT8/9) separating Sumatran and Bornean agile gibbons, and its evolutionary features. Chromosome Research 13: 123-133.
Kawamoto, Y. (2005) NRAMP1 polymorphism in a hybrid population between Japanese and Taiwanese macaques in Wakayama, Japan. Primates 46(3): 135-139.
Suka, T., Tanaka, H. (2005) New mitochondrial CO1 haplotypes and genetic diversity in the honeybee *Apis koschevnikovi* of the Crocker Range Park, Sabah, Malaysia. Journal of Tropical Biology and Conservation 1(1): 1-7.
Kurachi, M., Yamagata, T., Kawamoto, Y., Mannen, H., Kurosawa, Y., Tanaka, K., Nishibori, M., Nomura, K., Namikawa, T., Samphors, E., Sattya, E., Sidoeun, B., Srun, E., Vath, K., Valy, C., Bundoeun, S., Bunthon, C., Tean, B., Loan, C.P. (2006) Morphological, mitochondrial DNA and blood protein variants of wild musk shrews (Suncus murinus) in Cambodia. Report of the Society for Researches on Native Livestock 23: 125-143.
Kawamoto, Y., Ohsawa, H., Muroyama, Y., Goto, S., Shirai, K., Morimitsu, Y., Araki, S., Maekawa, S., Nigi, H., Torii, H., Maruhashi, T., Nakagawa, N., Other members of the Working Group of Wakayama Taiwanese macaques. (2005) Hybridization of introduced Taiwanese macaques with native Japanese macaques in Wakayama prefecture, Japan. 第9回国際哺乳類学会大会 (Jul. 2005, 札幌).
Kawamoto, Y., Ohsawa, H., Muroyama, Y., Goto, S., Shirai, K., Morimitsu, Y., Araki, S., Maekawa, S., Nigi, H., Torii., H., Maruhashi, T., Nakagawa, N., the Working Group of Wakayama Taiwanese Macaques. (2005) Hybridization of introduced Taiwanese macaques with native Japanese macaques in Wakayama Prefecture, Japan. International Symposium on Southeast Asian Primate Research (Oct. 2005, Bangkok, Thailand) The Natural History Journal of Chulalongkorn University Supplement(1): 94.
Kawamoto, Y. (2005) Population genetics and its application for conservation with examples of Japanese macaques. International Symposium on Southeast Asian Primate Research (Oct. 2005, Bangkok, Thailand) The Natural History Journal of Chulalongkorn University October 2005(Supplement 1): 85-86.
Kawamoto, Y. (2005) Population genetics and phylogeography of Japanese macaques. IX International Mammalogical Congress (Jul. 2005, 札幌, ) Abstracts : 37.
Ohsawa, H., Morimitsu, Y., Kawamoto, Y., Muroyama, Y., Maekawa, S., Nigi, H., Tori, H., Goto, S., Maruhashi, T., Nakagawa, N., Nakatani, J., Tanaka, T., Hayakawa, S., Yamada A., Hayaishi, S., Seino, H., Saeki, M., Kawai, S., Hagiwara, H., Suzuki, K., Suzuki, K., Uetsuki, S., Okano, M., Okumura, T., Yoshida, A., Yokoyama, N. (2005) Population explosion of Taiwanese macaques in Japan. , 1: , Chulalongkorn University. International Symposium on Southeast Asian Primate Research (Oct. 2005, Bangkok, Thailand) The Natural History Journal of Chulalongkorn University Supplement(1): 55-60.