DENSITY-ESTIMATION AND SWARMING STUDIES ON THE WINTERMOTH, OPEROPHTHERA-BRUMATA L (LEP, GEOMETRIDAE) BY MARKING AND USING PHEROMONE TRAPS

被引:6
作者
AMBRUS, A [1 ]
CSOKA, G [1 ]
机构
[1] HUNGARIAN FOREST RES INST,POB 49,H-2100 GODOLLO,HUNGARY
来源
ANZEIGER FUR SCHADLINGSKUNDE PFLANZENSCHUTZ UMWELTSCHUTZ | 1992年 / 65卷 / 05期
关键词
D O I
10.1007/BF01905052
中图分类号
Q96 [昆虫学];
学科分类号
摘要
A multiple mark-recapture study was carried out on the males of a population of Operophtera brumata L. in Hungary using pheromone traps in order to estimate the home range and the population size. The number of males caught by traps set up 1 m above ground culminated after half an hour after the twilight and successively decreased. The delay of the first capture of traps set up different heights was about 1 h per 5 m. Decreasing number of males was caught in traps with increasing height. The flight range of one third of marked males was within 10 m after the 2 -3 days period. The population density of males calculated by 3 estimators of open populations were 4,800-7,200 individuals per hectare.
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页码:88 / 92
页数:5
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