Behaviour in the presence of resource excess—flight of Tribolium castaneum around heavily-infested grain storage facilities

Muralitharan, V.; Chandrasekaran, Sriram; Mohankumar, S.; Daglish, Gregory J.; Loganathan, M.; Walter, Gimme H.

doi:10.1007/s10340-019-01085-w

Cited by 7 publications

(4 citation statements)

References 41 publications

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“…For example, in Tribolium sp. there is evidence that oxygen consumption 51 , pheromone release and response 20 , 21 , and flight activity 52 are the outcomes of the circadian clock. Further studies using functional genomic screening tools (e.g.…”

Section: Discussionmentioning

confidence: 99%

Social communication activates the circadian gene Tctimeless in Tribolium castaneum

Rath

Benita

Doron

et al. 2021

Sci Rep

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Chemical communication via pheromones is an integral component in insect behavior, particularly for mate searching and reproduction. Aggregation pheromones, that attract conspecifics of both sexes, are particularly common and have been identified for hundreds of species. These pheromones are among the most ecologically selective pest suppression agents. In this study, we identified an activating effect of the aggregation pheromone of the red flour beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenibroidae) on a highly conserved circadian clock gene (Tctimeless). Tribolium castaneum is one of the most damaging cosmopolitan pest of flour and other stored food products. Its male produced aggregation pheromone, 4,8-dimethyldecanal (DMD), attracts both conspecific males and females and is used for pest management via monitoring and mating disruption. The Tctimeless gene is an essential component for daily expression patterns of the circadian clock and plays vital roles in eclosion, egg production, and embryonic development. In this study, we demonstrate that constant exposure to the species-specific aggregation pheromone led to Tctimeless up-regulation and a different pattern of rhythmic locomotive behavior. We propose that changing the well-adapted "alarm clock", using DMD is liable to reduce fitness and can be highly useful for pest management.

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Section: Discussionmentioning

confidence: 99%

Social communication activates the circadian gene Tctimeless in Tribolium castaneum

Rath

Benita

Doron

et al. 2021

Sci Rep

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“…Flourmills are not completely closed systems, so trapping data may have included immigrating beetles from outside through doors and windows following fumigation, and therefore may confound results. Flight of T. castaneum outdoors has been well-documented [ 18 , 26 ] and immigration of beetles from distant sources outside a mill is a real possibility. Better attempts should be made to prevent the possible access of beetles into the mill from outside in order to longer-term efficacy of a fumigation.…”

Section: Discussionmentioning

confidence: 99%

Trapping Tribolium castaneum (Coleoptera: Tenebrionidae) and Other Beetles in Flourmills: Evaluating Fumigation Efficacy and Estimating Population Density

Doud

Cuperus

Kenkel

et al. 2021

Insects

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This paper reports beetle pests common to flourmills targeted during a series of trapping studies over a two-year period in flourmill 1 and a one year period in flourmill 2. Objectives were (1) use pheromone-baited traps to detect T. castaneum (Herbst) and other pest species present for their distribution over space and time, (2) monitor T. castaneum activity before and after fumigations to assess efficacy of the treatment, and (3) correlate counts of T. castaneum via trap capture against direct T. castaneum counts from samples of the milled flour to assess the value of trap data to estimate relative size of the pest population. Traps were deployed in two different flourmills over two consecutive years. T. castaneum was the most commonly trapped beetle during both years in mill 1. In mill 2, Typhaea stercorea (L.) and Cryptolestes ferrugineus (Stephens) were both captured in higher numbers than T. castaneum. In mill 1, trap capture was higher overall during Year 2 for most of the species compared with capture during Year 1, likely due to a dust cover modification made for the pitfall trap used in Year 2. Trap capture was also evaluated by location within the mills and a significant difference was found in the capture of T. stercorea during both years in mill 1. T. castaneum captures were significantly reduced following most fumigations, which used methyl bromide in milling areas and phosphine in bulk-stored finished flour. However, in most cases trap catches showed that beetle populations were not eliminated. Trap captures after fumigation suggest either that the fumigations were not entirely effective, or that full grown adult beetles were entering the mill soon after fumigation. When captures of T. castaneum from traps in two spaces of mill 1 during Year 2 were compared with counts of beetles from samples of siftings collected in the finished flour, the correlation coefficients were nearly significant for both sets of traps.

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“…Relative humidity does not appear important, while wind speed and direction, temperature, light, resource provision, and quality, age and mating status have all been seen to alter flight initiation and/or duration (e.g., Drury et al 2016 ; Gurdasani et al 2019 ). Flight patterns appear to be crepuscular and show seasonality (Daglish et al 2017 ; Rafter et al 2019 ), though this pattern varies with latitude (Rajan et al 2018 ). Consensus on the effect of sex on flight remains elusive, as the results of these studies do not agree on whether flight behaviour differs between males and females.…”

Section: Behavioural Ecology and Life Historymentioning

confidence: 99%

Tribolium beetles as a model system in evolution and ecology

2021

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Flour beetles of the genus Tribolium have been utilised as informative study systems for over a century and contributed to major advances across many fields. This review serves to highlight the significant historical contribution that Tribolium study systems have made to the fields of ecology and evolution, and to promote their use as contemporary research models. We review the broad range of studies employing Tribolium to make significant advances in ecology and evolution. We show that research using Tribolium beetles has contributed a substantial amount to evolutionary and ecological understanding, especially in the fields of population dynamics, reproduction and sexual selection, population and quantitative genetics, and behaviour, physiology and life history. We propose a number of future research opportunities using Tribolium, with particular focus on how their amenability to forward and reverse genetic manipulation may provide a valuable complement to other insect models.

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Behaviour in the presence of resource excess—flight of Tribolium castaneum around heavily-infested grain storage facilities

Cited by 7 publications

References 41 publications

Social communication activates the circadian gene Tctimeless in Tribolium castaneum

Social communication activates the circadian gene Tctimeless in Tribolium castaneum

Trapping Tribolium castaneum (Coleoptera: Tenebrionidae) and Other Beetles in Flourmills: Evaluating Fumigation Efficacy and Estimating Population Density

Tribolium beetles as a model system in evolution and ecology

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