caa a22 4500 47707605X CHVBK 20180405111438.0 cr unu---uuuuu 170330e19960601xx s 000 0 eng 10.1007/BF02514967 doi (NATIONALLICENCE)springer-10.1007/BF02514967 Matsumura Masaya Laboratory of Insect Pest Control, Hokuriku National Agricultural Experiment Station, Inada, 943-01, Joetsu, Niigata, Japan aut Population dynamics of the whitebacked planthopper, Sogatella furcifera (Hemiptera: Delphacidae) with special reference to the relationship between its population growth and the growth stage of rice plants [Elektronische Daten] [Masaya Matsumura] A population census was conducted to describe the effects of the growth stage of rice on the population dynamics ofS. furcifera, in particular, on immigration, seasonal abundance, population growth rate, and wing-form expression. The number of immigrants was highest on rice plants 17 to 30 days after transplanting (DAT), which suggested that immigrants prefer to settle or remain more on rice plants at the tillering stage (approximately 20-30 DAT). Population growth rate from immigration to the 1st generation decreased with an increase in rice plant age. In contrast, population growth rate from the 1st to 2nd generation was not influenced by rice plant age and was negatively density-dependent. The percentage of macropters (flyers) was positively related to the growth stage of rice when rice was in the vegetative or early part of the reproductive stage, and reached 100% at about 10 days before heading (booting stage). Threafter, most adult females molted into macropters regardless of population density. The roles of host plant age and crowding effect on the population dynamics ofS. furcifera are discussed. Society of Population Ecology, 1996 Sogatella furcifera nationallicence population dynamics nationallicence growth stage of rice nationallicence immigration nationallicence population growth rate nationallicence wing dimorphism nationallicence Researches on Population Ecology Springer-Verlag 38/1(1996-06-01), 19-25 0034-5466 38:1<19 1996 38 10144 https://doi.org/10.1007/BF02514967 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02514967 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Matsumura Masaya Laboratory of Insect Pest Control, Hokuriku National Agricultural Experiment Station, Inada, 943-01, Joetsu, Niigata, Japan aut NATIONALLICENCE 773 0- Researches on Population Ecology Springer-Verlag 38/1(1996-06-01), 19-25 0034-5466 38:1<19 1996 38 10144 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer