Shohei Shirahama

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Polymorphisms in plants are main factors that determine the diversity of associated animal communities and their population dynamics. Typically, Persicaria lapathifolia var. lapathifolia (Polygonaceae) has no trichomes on leaf surfaces (glabrous type), but a hairy type does sometimes occur. Based on a cultivation experiment, the presence or absence of(More)
Regulation mechanisms of insect population dynamics are important for conservation biology and insect pest management. The aphid Uroleucon nigrotuberculatum (Olive), native to North America, was introduced into Japan in the late 1980s. A previous study revealed that, in Japan, the aphid population densities increased in spring, but they suddenly disappeared(More)
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