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http://dx.doi.org/10.11614/KSL.2013.46.1.067

The Effect of Invasive Cricket Species, Gryllus bimaculatus on the Survival of Korean Cricket Species, Teleogryllus emma  

Lee, Eunaa (School of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University)
Kwon, Ohseok (School of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University)
Publication Information
Korean Journal of Ecology and Environment / v.46, no.1, 2013 , pp. 67-74 More about this Journal
Abstract
This research was conducted to investigate the competition for survival between the two cricket species: Gryllus bimaculatus (GB) and Teleogryllus emma (TE). The test insects for this research were bred in the greenhouse of the Ecological Entomology Lab, College of Agriculture and Biosciences, Kyungpook National University, Korea. The feeding environment was $28^{\circ}C$ to $30^{\circ}C$, Long-Day condition (16L : 8D) and Relative Humidity: 50%~60%. The changes of the individual number in two species (TE, GB) were checked every day. This research had three experimental conditions which the ratios of individuals (TE : GB) were set at 1 : 2, 1 : 1 and 2 : 1. The survival rate of GB was net better than that of TE in the result of this study. However, due to the absence of the diapauses period in the egg stage, GB would dominate over TE in the field condition. The appropriate legal measure against GB is recommended.
Keywords
Teleogryllus emma; Gryllus bimaculatus; introduced species; survival rate;
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