scholarly journals Efficiency of the Gamma Irradiation in Controlling the Red Flour Beetles, Tribolium castaneum Herbst, and Preventing Its Secondary Infestations

2019 ◽  
Vol 11 (1) ◽  
pp. 87-96
Author(s):  
Thanaa Sileem ◽  
Samia Mohamed ◽  
Eman Mahmoud
Keyword(s):  
Gamma Irradiation ◽  
Tribolium Castaneum ◽  
Flour Beetles ◽  
Red Flour Beetles

scholarly journals Sublethal Exposure to Phosphine Decreases Offspring Production in Strongly Phosphine Resistant Female Red Flour Beetles, Tribolium castaneum (Herbst)

PLoS ONE ◽  
2012 ◽  
Vol 7 (12) ◽  
pp. e53356 ◽  
Author(s):  
Andrew W. Ridley ◽  
Seymour Magabe ◽  
David I. Schlipalius ◽  
Michelle A. Rafter ◽  
Patrick J. Collins
Keyword(s):  
Tribolium Castaneum ◽  
Sublethal Exposure ◽  
Offspring Production ◽  
Flour Beetles ◽  
Red Flour Beetles

EFFECTS OF SUB-LETHAL EXPOSURES TO MALATHION OR CHLORPYRIFOS-METHYL ON OFFSPRING PRODUCTION BY SOME STORED-PRODUCT BEETLES

1990 ◽  
Vol 122 (6) ◽  
pp. 1187-1191 ◽  
Author(s):  
N.D.G. White ◽  
R.N. Sinha
Keyword(s):  
Tribolium Castaneum ◽  
Prolonged Exposure ◽  
Female Survivors ◽  
Offspring Production ◽  
Flour Beetles ◽  
Grain Beetles ◽  
Selection For ◽  
Filter Papers ◽  
Ground Wheat ◽  
Red Flour Beetles

AbstractExposure of adult rusty grain beetles, Cryptolestes ferrugineus (Stephens), saw-toothed grain beetles, Oryzaephilus surinamensis (L.), and red flour beetles, Tribolium castaneum (Herbst), to filter papers treated with the organophosphorus insecticides malathion or chlorpyrifos-methyl often affected offspring production in survivors. Groups of five male and five female survivors were placed on ground wheat at 30°C and C. ferrugineus and O. surinamensis adults produced fewer offspring with prolonged exposure to chlorpyrifos-methyl; malathion had no effect. Tribolium castaneum adults produced significantly more offspring with increasing exposure to both malathion and chlorpyrifos-methyl indicating stimulation of oviposition or a selection for increased fitness in survivors.

Female multiple mating for fertility assurance in red flour beetles (Tribolium castaneum)

2005 ◽  
Vol 83 (7) ◽  
pp. 913-919 ◽  
Author(s):  
Aditi Pai ◽  
Lauren Bennett ◽  
Guiyun Yan
Keyword(s):  
Tribolium Castaneum ◽  
Multiple Mating ◽  
Red Flour Beetle ◽  
Adult Offspring ◽  
Sperm Viability ◽  
Offspring Production ◽  
Multiple Partners ◽  
Flour Beetles ◽  
Sperm Depletion ◽  
Red Flour Beetles

The costs of mating with multiple partners include expenditure of energy and time and a reduction in lifespan, but females of many taxa mate with several different partners shortly after their first copulation. Often it is not clear what females gain from this behaviour. In this study, we used the red flour beetle (Tribolium castaneum Herbst, 1797) to test the hypothesis that females mate with multiple males for fertility assurance because the first copulation often does not lead to offspring production. We found that the probability of producing offspring, as measured by the proportion of females that produced offspring, was not affected by multiple mating when females were mated to virgin partners. However, when females were mated to nonvirgin partners, multiple mating led to an increased probability of producing offspring. To establish the mechanism through which multiple mating enhanced the probability of producing offspring, we further investigated whether this result was observed because multiple mating provided genetically compatible sperm or because it provided sufficient sperm. Viability of larvae from multiply mated females was higher than that of larvae from singly mated females, but the total number of adult offspring produced was not significantly different between the two groups. The capacity of males to inseminate females decreased in successive matings after the initial copulation, suggesting that ineffective copulations between virgin females and nonvirgin males are likely due to male sperm depletion. Therefore, mating with multiple males increased the probability that females would produce offspring and served as fertility assurance.

scholarly journals Adult neurogenesis in the mushroom bodies of red flour beetles (Tribolium castaneum, Herbst) is influenced by the olfactory environment

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Björn Trebels ◽  
Stefan Dippel ◽  
Magdalina Schaaf ◽  
Karthi Balakrishnan ◽  
Ernst A. Wimmer ◽  
...  
Keyword(s):  
Tribolium Castaneum ◽  
Adult Neurogenesis ◽  
Mushroom Bodies ◽  
Flour Beetles ◽  
Red Flour Beetles

scholarly journals Immune stimulation alters chemical profiles of Tribolium castaneum

2021 ◽  
Author(s):  
Lai Ka Lo ◽  
Reshma R ◽  
Lisa-Johanna Tewes ◽  
Barbara Milutinović ◽  
Caroline Müller ◽  
...  
Keyword(s):  
Tribolium Castaneum ◽  
Group Living ◽  
Immune Memory ◽  
Immune Stimulation ◽  
Immune Priming ◽  
Flour Beetles ◽  
Branched Alkanes ◽  
Chemical Profiles ◽  
Transfer Of Information ◽  
Red Flour Beetles

Rapid recognition of disease cues is essential for preventing pathogenic infections and for disease management in group-living animals. Healthy individuals across taxa can detect illness in other conspecifics and adjust their responses to limit further infections of themselves and the group. However, little is known about potential changes in chemical phenotypes due to disease, which may mediate these responses. We here asked whether individual immune experience resulting from wounding or the injection of heat-killed bacteria of Bacillus thuringiensis (i.e., immune priming) leads to changes in the chemical profiles of adult red flour beetles (Tribolium castaneum). This group-living insect species is a well-studied example for both immune priming as a form of innate immune memory and niche construction via 'external immunity', i.e., the secretion of quinone-containing antimicrobials into the flour. Upon interaction with wounded conspecifics, naive beetles were previously found to not only up-regulate immunity, but moreover reduce gene expression of the evolutionary capacitor HSP90, an effect that has the potential to enhance adaptability. We here used gas chromatography-flame-ionisation detection (GC-FID) to study the composition of stink gland secretions and cuticular hydrocarbons (CHCs) of immune-primed and wounded beetles compared to controls. The overall profiles as well as target compounds of the stink gland secretions showed transient, slight changes after these treatments, particularly in wounded females. Priming and wounding led to pronounced changes in CHC profiles with increases in the proportion of methyl-branched alkanes. Furthermore, we found sex-specific differences, that were particularly pronounced in the CHCs, although the changes due to immune stimulation were overall similar in both sexes. We suggest that CHCs are potential candidates for the transfer of information related to individual immunological experience into the group.

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