›› 1994, Vol. 37 ›› Issue (4): 426-434.
• RESEARCH PAPERS • Previous Articles Next Articles
WU KUN-JUN GONG PEI-YU LI XIU-ZHEN HE JIAN
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Abstract: The age-stage-specific life table that incorporates variable developmental rate among individuals and male adults is reported for the armyworm, Mythimna separata (Walker), reared on young corn leaves at 23℃. The method of its construction is diagramed, according to which, the net reproduction rate of the worm population(R0) was calculated to be 155.88; the intrinsic rate of increase (rm), 0.1120; and the mean generation time (T), 45.08. Days. All values of these parameters are somewhat different from those obtained by means of the traditional age-specific life table,and the cause of such differences is analysed. Advantage of the new life table incomparison to the traditional one is briefly discussed.
Key words: Mythimna separata——variable development rate——life table- population parameter
WU KUN-JUN GONG PEI-YU LI XIU-ZHEN HE JIAN. THE AGE-STAGE-SPECIFIC LIFE TABLE OF THE ARMYWORM, MYT HIMNA SEPARATA(WALKER)[J]., 1994, 37(4): 426-434.
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