Separation between maternal and paternal effects on offspring following exposure of adult red flour beetles to two stressors

2019 ◽  
Vol 44 (4) ◽  
pp. 494-501 ◽  
Author(s):  
Tomer Gilad ◽  
Inon Scharf
Keyword(s):  
Paternal Effects ◽  
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.

scholarly journals Artificial selection on walking distance suggests a mobility-sperm competitiveness trade-off

2019 ◽  
Vol 30 (6) ◽  
pp. 1522-1529 ◽  
Author(s):  
Kentarou Matsumura ◽  
C Ruth Archer ◽  
David J Hosken ◽  
Takahisa Miyatake
Keyword(s):  
Artificial Selection ◽  
High Mobility ◽  
Fertilization Success ◽  
Walking Distance ◽  
Leg Length ◽  
Mate Searching ◽  
Trade Off ◽  
Flour Beetles ◽  
Reduced Mobility ◽  
Red Flour Beetles

AbstractSecuring matings is a key determinant of fitness, and in many species, males are the sex that engages in mate searching. Searching for mates is often associated with increased mobility. This elevated investment in movement is predicted to trade-off with sperm competitiveness, but few studies have directly tested whether this trade-off occurs. Here, we assessed whether artificial selection on mobility affected sperm competitiveness and mating behavior, and if increased mobility was due to increased leg length in red flour beetles (Tribolium castaneum). We found that, in general, males selected for decreased mobility copulated for longer, stimulated females more during mating, and tended to be better sperm competitors. Surprisingly, they also had longer legs. However, how well males performed in sperm competition depended on females. Males with reduced mobility always copulated for longer than males with high mobility, but this only translated into greater fertilization success in females from control populations and not the selection populations (i.e. treatment females). These results are consistent with a mate-searching/mating-duration trade-off and broadly support a trade-off between mobility and sperm competitiveness.

Effectiveness of Three Residual Insecticide Formulations To Control Red Flour Beetles (Coleoptera: Tenebrionidae) On Painted and Unpainted Steel2

1991 ◽  
Vol 26 (4) ◽  
pp. 395-400 ◽  
Author(s):  
D. M. Claborn ◽  
G. E. Tetrault ◽  
F. H. Arthur
Keyword(s):  
Metal Surfaces ◽  
Insect Pests ◽  
Steel Plates ◽  
Flour Beetles ◽  
Red Flour Beetles ◽  
Coleoptera Tenebrionidae

Three insecticides were tested for efficacy against adult red flour beetles on painted and unpainted steel plates. Microencapsulated formulations of chlorpyrifos and diazinon provided 100% control for 47 weeks on both painted and unpainted surfaces. A lacquer-based formulation of chlorpyrifos was not as effective and could have been affected by paint. These findings have importance in the control of stored product insect pests on painted metal surfaces, including the decks of naval vessels.

scholarly journals Fumigant Components from the Essential Oil ofEvodia RutaecarpaHort Unripe Fruits

2011 ◽  
Vol 8 (4) ◽  
pp. 1937-1943 ◽  
Author(s):  
Zhi Long Liu ◽  
Shu Shan Du
Keyword(s):  
Mass Spectrometry ◽  
Essential Oil ◽  
Gas Chromatography Mass Spectrometry ◽  
Volatile Components ◽  
Chinese Medicinal Herb ◽  
Fumigant Activity ◽  
Flour Beetles ◽  
Evodia Rutaecarpa ◽  
Red Flour Beetles ◽  
Unripe Fruits

Essential oil of chinese medicinal herb,Evodia rutaecarpaunripe fruits was found to possess insecticidal activity against maize weevils,Sitophilus zeamais and red flour beetlesTribolium castaneum. The essential oil ofE. rutaecarpawas obtained by hydrodistillation and analyzed by gas chromatography-mass spectrometry (GC-MS). A total of 38 components of the essential oil were identified. The principal compounds inE. rutaecarpaessential oil wereβ-myrcene (17.7%), (Z)-β-ocimene (14.8%),α-phellandrene (14.7%),γ-terpinene (6.4%), linalool (5.7%) andβ-thujene (5.1%). Bioactivity-guided chromatographic separation of the essential oil on repeated silica gel columns led to isolate three volatile components (β-myrcene,β-ocimene andα-phellandrene) from the essential oil.α-Phellandrene was strongest fumigant againstS. zeamaisadults,T. castaneumadults andT. castaneumlarvae with LC50values of 15.61, 19.78 and 47.96 mg/L air, respectively.β-Myrcene andβ-ocimene also possess fumigant activity against the two species of insects but weaker fumigant activity than the crude essential oil.

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