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The life table of the lucerne beetle, Gonioctena fornicata (Brüggem) (=Phytodecta fornicatus Brüggem) (Coleoptera, Chrysomelidae) on alfalfa under laboratory conditions
Abstract
In this study, the life table of Gonioctena fornicata (Brügg.) was constructed at 25±1 ºC constant temperature, 60±5% relative humidity and 16:8 light:dark period in a climate cabinet. Life table parameters were calculated using the Euler-Lotka iteration method and their values were: Intrinsic rate of increase (rm), 0.015; Net reproductive rate (Ro), 180.25 females/female; Mean generation time (To), 353.03 days; Gross reproductive rate (GRR), 287.93 females/female; Doubling time, (T2) 47.11 days and Finite rate of increase (λ), 1.02 females/female. The fecundity rate was fitted in the Enkegaard equation and parameters were calculated as a = 0.886±0.055 ; b = 0.052±0.002. Mean development times for both sexes were: egg, 5.07, 2.85 days; larvae1, 2.83, 2.72 days; larvae2, 2.10, 2.36 days; larvae3, 2.15, 2.29 days; larvae4, 4.46, 4.29 days; pupae, 7.92, 7.69 days; total development time, 24.40, 24.32 days for females and males, respectively. Additionally, preoviposition, oviposition, postoviposition and generation times were 305.53, 32.73, 30.07 and 331.60 days, respectively. Life span of females was 366.07 days and it was 371.7 days for males. The best survivership curve was fitted to the Weibull distribution; its shape was defined as a Type I survivorship pattern and the calculated parameters were: b = 382.14±0.429 and c = 11.34±0.231
Keywords
References
- Apostolov, I., 1988. Spatial distribution of the lucerne leaf- betle (Phytodectafornicata Brüggm.) and the lucerne weevil (Phytonomus variabilis Hrbst.) and schemes for determining their density. Rasteniev dni Nauki, 25 (4), 93-101.
- Aslan, İ., B. Gruev, & H. Özbek, 2003. A preliminary review of the subfamiliy Chrysomelinae (Coleoptera, Chrysomelidae) of Turkey. Linzer Biol. Beitr.35(1), 581-605. 10
Details
Primary Language
English
Subjects
-
Journal Section
Research Article
Publication Date
February 1, 2014
Submission Date
January 26, 2015
Acceptance Date
-
Published in Issue
Year 2014 Volume: 38 Number: 1
APA
Efe, D., & Özgökçe, M. S. (2014). The life table of the lucerne beetle, Gonioctena fornicata (Brüggem) (=Phytodecta fornicatus Brüggem) (Coleoptera, Chrysomelidae) on alfalfa under laboratory conditions. Turkish Journal of Entomology, 38(1), 3-10. https://doi.org/10.16970/ted.74888
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