Hasegawa, Eisuke

BIOGRAPHICAL NOTE
University of Hokkaido, Japan

PUBLICATIONS

 * Hasegawa, E. 1995 ("1994"). Sex allocation in the ant Colobopsis nipponicus (Wheeler). I. Population sex ratio. Evolution 48:1121-1129.


 * Hasegawa, E. 1997. The optimal caste ratio in polymorphic ants: estimation and empirical evidence. American Naturalist 149:706-722.


 * Hasegawa, E. 1998. Phylogeny and host-parasite relationships in social parasitism in Lasius ants. Entomological Science 1:133-135.


 * Hasegawa, E.; Crozier, R. H. 2006. Phylogenetic relationships among species groups of the ant genus Myrmecia. Molecular Phylogenetics and Evolution 38:575-582.


 * Hasegawa, E.; Kobayashi, K.; Yagi, N.; Tsuji, K. 2011. Complete mitochondrial genomes of normal and cheater morphs in the parthenogenetic ant Pristomyrmex punctatus (Hymenoptera: Formicidae). Myrmecological News 15:85-90.


 * Hasegawa, E.; Ruana, F.; Tinaut, A. 2002. Phylogeny and the evolution of slavery in ants of the subfamily Formicinae. [Abstract.]. P. 139 in: Billen, J. (ed.) 2002. XIV International Congress of IUSSI. The Golden Jubilee Proceedings. 27 July - 3 August 2002, Hokkaido University, Sapporo, Japan. Sapporo: XIV International Congress of IUSSI, 233 pp.


 * Hasegawa, E.; Tinaut, A.; Ruano, F. 2002. Molecular phylogeny of two slave-making ants: Rossomyrmex and Polyergus (Hymenoptera: Formicidae). Annales Zoologici Fennici 39:267-271.


 * Hasegawa, E.; Yamaguchi, T. 1995. Population structure, local mate competition, and sex-allocation pattern in the ant Messor aciculatus. Evolution 49:260-265.


 * Hashimoto, Y.; Yamauchi, K.; Hasegawa, E. 1995. Unique habits of stomodeal trophallaxis in the ponerine ant Hypoponera sp. Insectes Sociaux 42:137-144.


 * Kobayashi, K.; Hasegawa, E.; Ohkawara, K. 2008. Clonal reproduction by males of the ant Vollenhovia emeryi (Wheeler). Entomological Science 11:167-172.


 * Kobayashi, K.; Tamura, H.; Okamoto, M.; Hasegawa, E.; Ohkawara, K. 2012. Phylogenetic relationships among populations of Vollenhovia ants, with particular focus on the evolution of wing morphology. Annals of the Entomological Society of America 105(3):454-461.


 * Sameshima, S.; Hasegawa, E.; Kitade, O.; Minaka, N.; Matsumoto, T. 1999. Phylogenetic comparison of endosymbionts with their host ants based on molecular evidence. Zoological Science (Tokyo) 16:993-1000.


 * Taylor, R. W.; Hasegawa, E.; Imai, H. T.; Kubota, M.; Crozier, R. 2002. Molecular phylogeny of the ant subfamily Myrmeciinae. [Abstract.]. P. 161 in: Billen, J. (ed.) 2002. XIV International Congress of IUSSI. The Golden Jubilee Proceedings. 27 July - 3 August 2002, Hokkaido University, Sapporo, Japan. Sapporo: XIV International Congress of IUSSI, 233 pp.


 * [[Media:Hasegawa E 1993.pdf|Terayama, M.; Yamaguchi, T.; Hasegawa, E. 1993. Ergatoid queens of slave-making ant Polyergus samurai Yano (Hymenoptera, Formicidae). Jpn. J. Entomol. 61: 511-514.]]