World's Best Scientists 2026 revealed!
Masakazu Shimada

Masakazu Shimada

Overview

Masakazu Shimada is affiliated with the University of Tokyo in Japan. Their research spans multiple fields, focusing notably on biochemistry, genetics, molecular biology, and agricultural and biological sciences. Their work intersects key subfields such as genetics, ecology, evolution, behavior, insect science, sociology, political science, and cell biology.

The scientist's research emphasizes several main topics, including insect and arachnid ecology and behavior, plant and animal studies, insect and pesticide research, evolutionary game theory and cooperation, evolution and genetic dynamics, cellular mechanics and interactions, and biocrusts and microbial ecology.

Shimada's recent scholarly contributions include:

  • "Polyandry and paternity affect disease resistance in eusocial wasps," 2020, Behavioral Ecology
  • "Synchronized emergence under diatom sperm competition," 2020, Proceedings of the Royal Society B Biological Sciences
  • "Prestalk-like positioning of de-differentiated cells in the social amoeba Dictyostelium discoideum," 2024, Scientific Reports
  • "Evolutionary stability of social commitment," 2022, bioRxiv (Cold Spring Harbor Laboratory)
  • "Hereditary nature of death-feigning frequency in a parasitoid wasp Heterospilus prosopidis using sib analysis," 2024, Journal of Evolutionary Biology

Their collaborative efforts frequently involve the following researchers:

  • Yuka Shirokawa
  • Nao Shimada
  • Satoshi Sawai
  • Tatsuya Saga
  • Masaki Okuno

Masakazu Shimada publishes across several scientific venues, including:

  • Behavioral Ecology
  • Proceedings of the Royal Society B Biological Sciences
  • Scientific Reports
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Journal of Evolutionary Biology

Best Publications

  • Strict Host-Symbiont Cospeciation and Reductive Genome Evolution in Insect Gut Bacteria

    Takahiro Hosokawa;Yoshitomo Kikuchi;Yoshitomo Kikuchi;Naruo Nikoh;Masakazu Shimada

  • Global legume diversity assessment: Concepts, key indicators, and strategies

    Tetsukazu Yahara;Firouzeh Javadi;Yusuke Onoda;Luciano Paganucci de Queiroz

  • High Prevalence of Wolbachia in the Azuki Bean Beetle Callosobruchus chinensis (Coleoptera, Bruchidae)

    Natsuko Kondo;Masakazu Shimada;Takema Fukatsu

  • The effect of learning and search images on predator–prey interactions

    Yumiko Ishii;Masakazu Shimada

  • Infection dynamics of coexisting beta- and gammaproteobacteria in the nested endosymbiotic system of mealybugs

    Marie Kono;Marie Kono;Ryuichi Koga;Masakazu Shimada;Takema Fukatsu;Takema Fukatsu

  • Internal Spatiotemporal Population Dynamics of Infection with Three Wolbachia Strains in the Adzuki Bean Beetle, Callosobruchus chinensis (Coleoptera: Bruchidae)

    Nobuyuki Ijichi;Natsuko Kondo;Rena Matsumoto;Masakazu Shimada

  • Symbiont acquisition alters behaviour of stinkbug nymphs.

    Takahiro Hosokawa;Yoshitomo Kikuchi;Masakazu Shimada;Takema Fukatsu;Takema Fukatsu

  • Mechanisms regulating caste differentiation in an aphid social system.

    Harunobu Shibao;Mayako Kutsukake;Shigeru Matsuyama;Takema Fukatsu

  • Parasitoids as model organisms for ecologists

    H. C. J. Godfray;Masakazu Shimada

  • Extremely female-biased sex ratio and lethal male-male combat in a parasitoid wasp, Melittobia australica (Eulophidae)

    Jun Abe;Yoshitaka Kamimura;Natsuko Kondo;Masakazu Shimada

  • Learning predator promotes coexistence of prey species in host–parasitoid systems

    Yumiko Ishii;Masakazu Shimada

  • Body size-dependent gender role in a simultaneous hermaphrodite freshwater snail, Physa acuta

    Kako Ohbayashi-Hodoki;Fumiko Ishihama;Masakazu Shimada

  • Altruistic colony defense by menopausal female insects.

    Keigo Uematsu;Mayako Kutsukake;Takema Fukatsu;Masakazu Shimada

  • Cheater genotypes in the parthenogenetic ant Pristomyrmex punctatus.

    Shigeto Dobata;Tomonori Sasaki;Hideaki Mori;Eisuke Hasegawa

  • Local mate competition with lethal male combat: effects of competitive asymmetry and information availability on a sex ratio game.

    Jun Abe;Y. Kamimura;H. Ito;H. Matsuda

  • Individual sex ratios and offspring emergence patterns in a parasitoid wasp, Melittobia australica (Eulophidae), with superparasitism and lethal combat among sons

    Jun Abe;Yoshitaka Kamimura;Masakazu Shimada

  • Ant circadian activity associated with brood care type.

    Haruna Fujioka;Masato S. Abe;Masato S. Abe;Taro Fuchikawa;Kazuki Tsuji

  • Complexity, Evolution, and Persistence in Host-Parasitoid Experimental Systems With Callosobruchus Beetles as the Host

    Midori Tuda;Masakazu Shimada

  • Rapid adaptation: a new dimension for evolutionary perspectives in ecology.

    Masakazu Shimada;Yumiko Ishii;Harunobu Shibao

  • Spiroplasma infection causes either early or late male killing in Drosophila, depending on maternal host age.

    Daisuke Kageyama;Daisuke Kageyama;Hisashi Anbutsu;Masakazu Shimada;Takema Fukatsu

Frequent Co-Authors

Takema Fukatsu
Takema Fukatsu National Institute of Advanced Industrial Science and Technology
Naruo Nikoh
Naruo Nikoh The Open University of Japan
Yoshitomo Kikuchi
Yoshitomo Kikuchi National Institute of Advanced Industrial Science and Technology
Kazuki Tsuji
Kazuki Tsuji University of the Ryukyus
Hiroshi Ito
Hiroshi Ito Fukushima Medical University
Kunihiro Ohta
Kunihiro Ohta University of Tokyo
Niels Raes
Niels Raes Naturalis Biodiversity Center
Kenji Karino
Kenji Karino Tokyo Gakugei University
Yusuke Onoda
Yusuke Onoda Kyoto University
Sven Buerki
Sven Buerki Boise State University

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