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    Article

    Assessment of higher insect taxa as bioindicators for different logging-disturbance regimes in lowland tropical rain forest in Sabah, Malaysia

    One of the serious environmental problems since the 1980s has been the conflict between the high rate of deforestation and maintenance of healthy ecosystem services and biological values in tropical forests. T...

    Kosuke Akutsu, Chey Vun Khen, Masanori J. Toda in Ecological Research (2007)

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    Article

    International Biodiversity Observation Year in Western-Pacific and Asian regions (DIWPA-IBOY): a case report on species rarity and spatio-temporal variability of species composition in Lepidoptera and Coleoptera communities from a temperate forest of northern Japan

    An international project, DIWPA-IBOY, took place for simultaneously observing biodiversity throughout the Western-Pacific and Asian regions in 2001–2003, as one of the core projects for International Biodivers...

    Toshihide Hirao, Masashi Murakami, Hiroyuki Kogi, Akira Kashizaki in Ecological Research (2006)

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    Article

    Strong Purifying Selection on the Odysseus Gene in Two Clades of Sibling Species of the Drosophila montium Species Subgroup

    The Odysseus (OdsH) gene was duplicated from its ancestral neuron-expressed gene, unc-4, and then evolved very rapidly under strong positive Darwinian selection as a speciation gene causing hybrid-male sterility ...

    Shuo-Yang Wen, Kimio Shimada, Kuniko Kawai in Journal of Molecular Evolution (2006)

  4. Article

    Open Access

    Host resistance does not explain variation in incidence of male-killing bacteria in Drosophila bifasciata

    Selfish genetic elements that distort the sex ratio are found widely. Notwithstanding the number of records of sex ratio distorters, their incidence is poorly understood. Two factors can prevent a sex ratio di...

    Zoe Veneti, Masanori J Toda, Gregory DD Hurst in BMC Evolutionary Biology (2004)

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    Article

    Tree shape, forest structure and diversity of drosophilid community: Comparison between boreal and temperate birch forests

    Some models, based on the latitudinal variation in sun angle distribution, predict that trees at high latitudes have narrowly conical crowns and constitute simple-layered forests, whereas trees at low latitude...

    Shin-Ichi Tanabe, Masanori J. Toda, Alexandra V. Vinokurova in Ecological Research (2001)

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    Article

    Three-dimensional dispersion of drosophilid flies in a cool temperate forest of northern Japan

    Three-dimensional dispersion of drosophilid flies was studied within a secondary broad-leaved forest in relation to forest structure. The survey area included the forest margin and old canopy gaps and varied i...

    Masanori J. Toda in Ecological Research (1992)

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    Article

    Food preferences and nematode parasitism in mycophagousDrosophila

    Food preferences and nematode parasitism were studied in natural populations of mycophagousDrosophila in and near Sapporo, northern Japan. Species which preferred fresh mushrooms showed species-specific responses...

    Masahito T. Kimura, Masanori J. Toda in Ecological Research (1989)