Researches on Population Ecology
1437-5613
0034-5466
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Các bài báo tiêu biểu
The genetics and ecology of sympatric speciation: A case study
Tập 40 - Trang 175-187 - 1998
Mating occurs on the larval host plant in allRhagoletis species (Diptera: Tephritidae). We show how this attribute, when coupled with certain differences in other biological traits, strongly influences the mode of speciation. In species of thesuavis species group, host shifts have never occurred during speciation, and larvae feed in the husks of any walnut species(Juglans spp.), which are highly t......
Territory establishment of young bio-clawed shrew,Sorex unguiculatus (Dobson) (Insectivora, Soricidae)
Tập 30 - Trang 83-93 - 1988
A model of the plant-to-plant movement of aphids I. Description of the model
Tập 9 - Trang 53-61 - 1967
The plant-to-plant movement of insects in one of the factors determining the distribution of individuals in insect populations. In this report the movement of barley aphids was analyzed by a statistical model. The model is represented as the convolution of three probability functions:
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Social behavior of early emerging males of a Japanese paper wasp,Polistes chinensis antennalis (Hymenoptera: Vespidae)
Tập 25 - Trang 143-149 - 1983
Five cases of the early emergence of males in a Japanese paper wasp,Polistes chinensis antennalis, in which male emerged together with the first group of workers, were described. In one case of the five where the queen disappeared before the emergence of male, worker(s) produced female offspring. The frequency of the nests where the early emergence of male was observed was 16.7% (5/30 nests). In t......
Role of a parasitoid with a low fecundity,Praestochrysis shanghaiensis (Hymenoptera: Chrysididae), in the population dynamics of its host
Tập 32 - Trang 365-379 - 1990
Humid microenvironment prerequisite for the survival and growth of nymphs of the rice brown planthopper,Nilaparvata lugens (Stål) (Homoptera: Delphacidae)
Tập 36 - Trang 23-28 - 1994
Nymphs ofNilaparvata lugens were experimentally reared from the 2nd instar in a cage covering part of the leaf sheath of an individual rice plant grown in a Wagner pot. Plants were covered with the cage from the water surface of the pot to 10 cm above the surface (lower cage-group) or from 10 cm to 20 cm above the surface (upper cage-group). Temperatures measured at three different parts of the ca......
Comparative analysis of the population dynamics of rice leafhoppers,Nephotettix cincticeps Uhler andNilaparvata lugens Stål, with special reference to natural regulation of their numbers
Tập 12 - Trang 154-184 - 1970
Flight activity and oviposition characteristics of the seasonal form of a migrant skipper,Parnara guttata guttata (Lepidoptera: Hesperiidae)
Tập 32 - Trang 227-233 - 1990
The flight activity of adults of a migrant skipper (Parnara guttata guttata) was measured on the day of emergence, and at 4 and 7 days after emergence by a flight mill and the activity was compared among the three seasonal forms which emerged under 12, 14 and 16 hr photoperiods. The flight activity of adults reared under 12 and 14 hrs was higher than that under 16 hr especially on the day of emerg......