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J Econ Entomol

Title:		Demographic Analysis of Sex Ratio on Population Growth of Bactrocera dorsalis (Diptera: Tephritidae) With Discussion of Control Efficacy Using Male Annihilation
Author(s):		Yu-Bing Huang K; Atlihan R; Gokce A; Yu-Bing Huang J; Chi H;
Address:		"Laboratory of Theoretical and Applied Ecology, Department of Entomology, National Chung Hsing University, 402 Taichung, Taiwan, Republic of China ( ybhuang@tari.gov.tw ; qpqjh@yahoo.com.tw ; hsinchi@dragon.nchu.edu.tw ). Division of Applied Zoology, Agricultural Research Institute, 41362 Taichung, Taiwan, Republic of China. Department of Plant Protection, Faculty of Agriculture, University of Yuzuncu Yil, 65080 Van, Turkey (ratlihan@yyu.edu.tr). Department of Plant Production and Technologies, Faculty of Agricultural Sciences and Technologies, Omer Halisdemir University, 51240 Nigde, Turkey (ayhan.gokce@nigde.edu.tr). Laboratory of Theoretical and Applied Ecology, Department of Entomology, National Chung Hsing University, 402 Taichung, Taiwan, Republic of China (ybhuang@tari.gov.tw; qpqjh@yahoo.com.tw; hsinchi@dragon.nchu.edu.tw). Department of Plant Production and Technologies, Faculty of Agricultural Sciences and Technologies, Omer Halisdemir University, 51240 Nigde, Turkey ( ayhan.gokce@nigde.edu.tr )"
Journal Title:		J Econ Entomol
Year:		2016
Volume:		109
Issue:		6
Page Number:		2249 - 2258
DOI:		10.1093/jee/tow212
ISSN/ISBN:		1938-291X (Electronic) 0022-0493 (Linking)
Abstract:		"The life table data for the oriental fruit fly, Bactrocera dorsalis (Hendel), at different adult sex ratios (1female symbol: 1male symbol, 1female symbol: 50male symbol, 50female symbol: 1male symbol free-choice mating, and 50female symbol: 1male symbol no-choice mating) were collected to determine the effects of sex-ratio manipulation on current pest control procedures. At 1female symbol: 1male symbol, females mated, on average, 2.3 times during their lifetime with a mean fecundity (F) of 1,122 eggs. The net reproductive rate (R0), intrinsic rate of increase (r), finite rate (lambda), and mean generation time (T) were 561.0 offspring, 0.1693 d- 1, 1.1844 d- 1, and 37.4 d, respectively. At 50female symbol: 1male symbol free-choice mating, males mated 46.7 times during their lifetime, while at 50female symbol: 1male symbol no-choice mating, males mated on average 50 times during their lifetime, and all females mating only once in both treatments. The values for F, r, and lambda were significantly lower for both 50female symbol: 1male symbol treatments than those in the 1female symbol: 1male symbol group; the R0 values, however, were either equal to or even higher than those in the 1female symbol: 1male symbol treatment. In the male-biased sex ratio (1female symbol: 50male symbol), fecundity was the highest (1,610 eggs) and female average life span the longest (166 d), while the R0 was the lowest (31.6 offspring) among all treatments. Population projections showed that even at a sex ratio of 50female symbol: 1male symbol, B. dorsalis could still produce a large number of offspring. These findings demonstrate that management strategies for controlling B. dorsalis could be properly evaluated by using demographic methods. Because female annihilation appears to be a more effective control strategy, it should be considered as a viable alternative"
Keywords:		"Animals Female Fertility Life Tables Male Pest Control, Biological/*methods Population Growth Reproduction Sex Ratio *Tephritidae/physiology Bactrocera dorsalis life table population projection;"
Notes:		"MedlineYu-Bing Huang, Kevin Atlihan, Remzi Gokce, Ayhan Yu-Bing Huang, Joyce Chi, Hsin eng England 2016/10/04 J Econ Entomol. 2016 Dec 1; 109(6):2249-2258. doi: 10.1093/jee/tow212"