K. Yamasaki

Publications19
h-index5
Citations124
Highly Influential Citations2
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Isolation and characterization of 10 microsatellite loci in the paper wasp Polistes rothneyi (Hymenoptera; Vespidae)
TLDR
10 polymorphic microsatellite loci for the Japanese paper wasp Polistes rothneyi are developed using the magnetic particle method and can be used to study parameters concerning genetic relatedness such as worker reproduction and kin structure.
Neuro-endocrine correlates of ovarian development and egg-laying behaviors in the primitively eusocial wasp (Polistes chinensis).
Gonadotropic effects of dopamine in isolated workers of the primitively eusocial wasp, Polistes chinensis
TLDR
Ovarian development was accelerated in dopamine-fed workers as compared to control workers of the same age fed only sucrose solution, indicating that dopamine plays a gonadotropic role in isolated workers in the primitively eusocial wasp, similar to the gonadotrop role previously reported for juvenile hormone.
Reproductive interference by alien hornet Vespa velutina threatens the native populations of Vespa simillima in Japan
TLDR
Analysis of the mitochondrial cytochrome c oxidase subunit I gene showed that the alien V. velutina causes reproductive interference in Japanese native hornet Vespa simillima, suggesting that reproductive interference by V. Velutina males poses a threat to the native V. Simillima populations.
Climate-mediated population dynamics enhance distribution range expansion in a rice pest insect
Orphaning does not affect the colony productivity of the primitive eusocial wasp Polistes snelleni
TLDR
The results suggest that the reproductive potential of the successive queens in the orphans is not lower than that of the foundress queens, and that the productivity of the orphan colonies is maintained rather than causing potential conflict over direct reproduction among workers.
Detecting crucial dispersal pathways using a virtual ecology approach: A case study of the mirid bug Stenotus rubrovittatus
TLDR
This work developed a dispersal model based on cellular automata for the pest insect Stenotus rubrovittatus and simulated its expansion, and found that both road density and abandoned area models had prediction accuracy.
Bumblebee fauna of the Nemuro Peninsula, Hokkaido, Japan: with special reference to the effect of the invasive Bombus terrestris on the rare B. florilegus.
Reproductivity of early males of the temperate paper wasp Polistes rothneyi iwatai
TLDR
Results suggest that although most early males of P. rothneyi iwatai do not produce offspring, their mating may be linked to the occasional production of triploid females.
The first record of Sphexicozela sp. (Acari: Winterschmidtiidae) phoretic on the paper wasp, Polistes snelleni (Hymenoptera: Vespidae).
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