THE INCORPORATION OF LABORATORY-REARED GENETIC MATERIAL INTO A FIELD POPULATION OF THE AUSTRALIAN SHEEP BLOWFLY, LUCILIA CUPRINA (DIPTERA: CALLIPHORIDAE)

1973 ◽  
Vol 105 (6) ◽  
pp. 893-901 ◽  
Author(s):  
M. J. Whitten ◽  
G. G. Foster ◽  
R. L. Kitching
Keyword(s):  
Genetic Material ◽  
Field Population ◽  
Field Conditions ◽  
Lucilia Cuprina ◽  
Marker Genes ◽  
Mating Competitiveness ◽  
Australian Sheep ◽  
Fluorescent Dust ◽  
Males And Females

AbstractCompetitiveness of laboratory-reared Lucilia cuprina (Wied.) has been examined under field conditions. The separate release of males and females each marked genetically and with fluorescent dust permitted estimates of dispersal, survival and mating competitiveness for both sexes. The ability of males to seek mates and introduce marker genes into a field population did not appear to be impaired as a result of several years of laboratory colonization. Released females were readily inseminated though suitable conditions did not exist for adequate assessment of their ability to produce offspring.

scholarly journals Genetic Analysis of Field Trials of Sex-linked Translocation Strains for Genetic Control of the Australian Sheep Blowfly Lucilia cuprina (Wiedemann)

1985 ◽  
Vol 38 (3) ◽  
pp. 275 ◽  
Author(s):  
GG Foster ◽  
WG Vogt ◽  
TL Woodburn
Keyword(s):  
Genetic Analysis ◽  
Genetic Control ◽  
Poor Performance ◽  
Field Trials ◽  
Lucilia Cuprina ◽  
Native Population ◽  
Australian Sheep ◽  
Males And Females ◽  
Progeny Tests ◽  
Release Method

The results of progeny tests of males and females captured during two field trials of sex-linked translocation strains for genetic control of L. cuprina are presented. Males released as mature larvae survived to adulthood and mated with field females. However, the levels of genetic death introduced into the population were insufficient to suppress the native population. This was due partly to seasonal ineffectiveness of the release method, and partly to poor performance of the released males. On average, the mating competitiveness of the released males was only one-third that of field males, whereas their field-reared, translocation-bearing sons were fully competitive with native males.

Effects of bait age on the number, sex, and age composition of Lucilia cuprina (Wiedemann) (Diptera: Calliphoridae) in Western Australian blowfly traps

1994 ◽  
Vol 34 (5) ◽  
pp. 595 ◽  
Author(s):  
WG Vogt ◽  
TL Woodburn
Keyword(s):  
Exposure Time ◽  
Reproductive Age ◽  
Lucilia Cuprina ◽  
Age Composition ◽  
Coefficients Of Variation ◽  
Australian Sheep ◽  
Males And Females ◽  
Gravid Females ◽  
Trap Catches ◽  
Western Australian

Daily catches of the Australian sheep blowfly, Lucilia cuprina, in Western Australian blowfly traps were not significantly affected by exposing the baits in traps for up to 3 days in the field before trapping. Exposure of the baits for longer periods significantly increased the daily catch totals of both sexes. Baits with a mean exposure time before trapping of 7 days (old baits) returned significantly higher catches than baits with a zero exposure time (fresh baits): 5-fold and 3-fold increases, respectively, for males and females. Exposure of baits for only 1 day was sufficient to produce significant changes in the reproductive age composition of female catches; proportions of newly emerged females increased and proportions of gravid females decreased. Coefficients of variation for old bait/new bait catch ratios were small, 16.4% for males and 12.3% for females, which confirmed that both baits exhibited consistent levels of attractiveness on different trapping dates. Procedures are suggested for estimating population densities of L. cuprina based on trap catches using fresh and old baits.

scholarly journals Diazinon resistance, fluctuating asymmetry and fitness in the Australian sheep blowfly, lucilia cuprina.

Genetics ◽  
1988 ◽  
Vol 120 (1) ◽  
pp. 213-220 ◽  
Author(s):  
J A McKenzie ◽  
G M Clarke
Keyword(s):  
Fluctuating Asymmetry ◽  
Natural Populations ◽  
Lucilia Cuprina ◽  
Resistance Locus ◽  
Gene Complex ◽  
Subsequent Evolution ◽  
Genetic Analyses ◽  
Evolution Of Resistance ◽  
Australian Sheep ◽  
Chromosome Iii

Abstract Genetic evidence suggests that the evolution of resistance to the insecticide diazinon in Lucilia cuprina initially produced an increase in asymmetry. At that time resistant flies were presumed to be at a selective disadvantage in the absence of diazinon. Subsequent evolution in natural populations selected modifiers to ameliorate these effects. The fitness and fluctuating asymmetry levels of resistant flies are currently similar to those of susceptibles. Previous genetic analyses have shown the fitness modifier to co-segregate with the region of chromosome III marked by the white eyes, w, locus, unlinked to the diazinon resistance locus, Rop-1, on chromosome IV. This study maps the asymmetry modifier to the same region, shows, as in the case of the fitness modifier, its effect to be dominant and presents data consistent with the fitness/asymmetry modifier being the same gene (gene complex). These results suggest changes in fluctuating asymmetry reflect changes in fitness.

scholarly journals Capacity of earwig Marava arachidis (Yersin) to access fennel plants Foeniculum vulgare Mill in laboratory and field

2007 ◽  
Vol 37 (6) ◽  
pp. 1524-1528 ◽  
Author(s):  
Charles Ira Abramson ◽  
Paulo Alves Wanderley ◽  
Alexandre José Soares Miná ◽  
Maria José Araújo Wanderley
Keyword(s):  
Essential Oil ◽  
Field Experiment ◽  
Field Conditions ◽  
Foeniculum Vulgare ◽  
Independent Variables ◽  
Laboratory Conditions ◽  
Potential Capacity ◽  
Males And Females

This research was aimed at obtaining data about earwig behavior (Marava arachidis Y.) on fennel agro-ecosystems and evaluating its potential capacity to access plants in the absence of aphids under laboratory and field conditions. This study establishes a baseline to evaluate earwigs as biological controls to combat aphids that attack fennel plants. Two experiments were developed. In experiment 1, earwigs were studied under laboratory conditions, in experiment 2 under field conditions. Independent variables were sex, exposure to the essential oil of fennel for 24 or 48 hours, and whether the fennel plant was vegetative or flowering. The results indicated that earwigs will climb a fennel plant in the absence of aphids and that few statistical significant results were obtained among the independent variables examined. A difference between male and females was noted in the field experiment in animals receiving 48 h of exposure to the essential oil of fennel. The terminal height reached by males and females in the 48 h vegetative and flower condition also differed.

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