The influence of prior environments on the demography of Tribolium castaneum

by John Frederick Boyer

Written in English
Published: Pages: 130 Downloads: 299
Share This

Edition Notes

Statementby John Frederick Boyer.
LC ClassificationsMicrofilm 40266 (Q)
The Physical Object
Paginationvi, 130 leaves.
Number of Pages130
ID Numbers
Open LibraryOL2162360M
LC Control Number88893617

  We describe an experiment exploring the effects of coexistence and genetic drift on the outcome of competition in two species of Tribolium flour beetles, T. castaneum and T. confusum. We had available from previous studies (Goodnight a,b) 10 communities and 10 pairs of single-species populations of these two species. Dried Distillers Grains with Solubles (DDGS) is used in livestock feeds and finishing diets to replace maize or other grains. As more of this product is available to the feed industry, the effect it might have on the vulnerability of animal feed to insect infestation is unknown. This research focused on the influence of old generation DDGS as food and oviposition resource of red flour beetle Author: M. Fardisi, L. J. Mason, E. J. Klein. The following are abstracts of selected papers containing hitherto unpublished information of which the text is published in full in these sections [cf. R.A.E., A 51 ]. This paper was based mainly on observations made in 50 roller flour mills in various parts of the world in The mills are broadly classified as those in hot dry climates (over °F. and less than 60 per cent Cited by: 6.   Here, the authors show experimentally using the red flour beetle,Tribolium castaneum, that dispersal and growth can evolve through spatial processes, increasing expansion speed and its Cited by:

Tropical Agricultural Research & Extension 13(2): sulted from the larvicidal activity of the compounds against the beetle; and due to food scarcity the predator population remained low. Though the re-duction of population was significant in treated batches, but in Control the number of adult X. flavipes did not show proportionate increase when.   As predicted by conceptual work [30, 34, 36, 52], offspring production of beetles with contrasting sexual selection histories was greatly affected by environmental quality.M-females generally showed inferior fitness, yet profited from mating with P-males in the stressful low quality food studies on T. castaneum showed that access to food is a crucial factor for sperm Cited by: Effects of temperature, moisture and thermal acclimation on the biology of Tenebrio molitor (Coleoptera: Tenebrionidae) ), the flour beetles, Tribolium confusum and T. castaneum (Howe, , ; Watters, ), the book louse, Liposcelis ments. Although the expression, "hot-dry environment", is most often associated with desert Cited by: 4. Tribolium castaneum is likely to undergo frequent population genetic bottlenecking as a sporadic invader of stored food products; the same could be said of any taxon that is an opportunistic invader of unpredictable resources, where reproducing populations can be created from the invasion of single adult females. Given that our ancestral GA1 Cited by:

Park, T. Experimental studies of interspecies competition 1: Competition between populations of the flour beetles, Tribolium confusum Duval and Tribolium castaneum Herbst. Ecological Monographs – DOI: / E-mail Citation».   (a) Adult red flour beetle Tribolium castaneum (Herbst, ) moving through wheat flour. Photograph by Pieter Arnold. Photograph by Pieter Arnold. (b) Complex maze environment based on 12 evenly‐spaced square radial passageways used to quantify aspects of by: 7. The efficacy of powders of plant parts from Azadirachta indica, Lawsonia inermis, Annona senegalensis and Hyptis suaveolens at 10, 15 and 20 g/ g seeds was tested using Complete Randomized Design (CRD) against the storage pest Tribolium castaneum (Herbst) in groundnut in the laboratory. At 28 days after application, mean number of seeds damaged was ± for A. indica and Cited by: 1.   Introduction. Thomas Park () deliberately chose two closely related species, Tribolium confusum Duval and Tribolium castaneum Herbst, for his long‐term study of interspecies competition. Park found support for using related species in a comment by Darwin ( Chapter III), ‘As the species of the same genus usually have, though by no means invariably, much similarity in Cited by:

The influence of prior environments on the demography of Tribolium castaneum by John Frederick Boyer Download PDF EPUB FB2

Flour beetles, Tribolium castaneum (Herbst) and T. confusum (Duval), have been the subject of many studies in ecology and genetics. The most important demographic attributes of Tribolium are fecundity, fertility, development time, survivorship and dispersive proclivities, and flour beetles also exhibit cannibalistic behaviour (intra-species.

An experimental study of the influence of food quality and population density on the demographic performance of Tribolium castaneum (Herbst.) Abstract. An experiment is described in which the effect of the interaction between food quality and population density upon the demographic performance of Tribolium castaneum is by: 9.

Stable demographic limit cycles in laboratory populations of Tribolium castaneum. Journal of Animal Ecology – Journal of Animal Ecology – CrossRef Google ScholarCited by: 6.

The effect of different initial adult population densities of Tribolium castaneum (Herbst) at several post infestation storage times on the final adult population density, the percentage of damaged beans, the percentage of weight loss, and the weight of insect feeding residues on cocoa beans was investigated in laboratory by: 7.

Acetophenone, ethyl butyrate and 2-phenyl ethanol were used as additives to media on which Tribolium castaneum (Herbst) and Lasioderma serricorne (Fabricius) were cultured for 65 days. Acetophenone and ethyl butyrate had a positive impact on the weight and multiplication of the insects.

Studies of Behavior of the Tribolium Flour Beetles. Contrasting Responses of T. castaneum and T. confusum to Fresh and Conditioned FloursCited by:   The usefulness of a non-random group selection method in the improvement of a character influenced by interactions among individuals has been experimentally tested in a population of Tribolium castaneum.

The selected trait —number of adults produced in a fixed period of time —showed a clear increase after 11 generations of by: Here, we disentangled how juvenile environment mediates the influence of current environment on dispersal using the model system Tribolium castaneum Herbst (red flour beetles).

Specifically, we induced two different dispersal phenotypes by exposing experimental individuals to either a low density or a high density of conspecifics as by: 4.

The length of the pupal period is not affected by humidity, but it is affected by temperature. The shortest period for the pupa stage was 4 days at 40⁰C. The period is slightly increased with decreasing temperature: 4 days at 40⁰C, 5 days at 35⁰C, 8 days at 30⁰C, 12 days at 25⁰C, and 24 days at 20⁰ Size: KB.

Furthermore, their influence may depend on the environment and may change as colonization progresses from establishment through population growth and then dispersal.

We tested the roles of. Abstract. The red flour beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae), is a common pest in rice mills. With limited information in the literature addressing T.

castaneum in rice processing facilities, we examined the spatial and temporal distribution of T. castaneum inside and outside of three commercial rice milling facilities and one rice packaging plant Cited by: 2.

scientific environment. First steps as model organism Although the description of Tribolium castaneum by Herbst goes back toits first use as a model organism had to wait until the beginning of the twentieth century.

The very first experiments generally concerned the Tenebrionidae family at large rather than Tribolium castaneum per se. The influence of prior environments on the demography of Tribolium castaneum. Doctoral dissertation, University of Chicago.

Bragagnolo, C. Análise do armazenamento de arroz no Brasil sob condições de incerteza através de um modelo dinâmico de expectativas racionais. Here, we show that 1 % lyophilized broccoli, added to flour as a dietary source, significantly increases the life span of the red flour beetle (Tribolium castaneum) under physiological conditions (32 °C) and under heat stress (42 °C).

The beneficial effects of broccoli could also be reproduced by supplementing flour with the isothiocyanate sulforaphane at concentrations found in Cited by:   Here, we sought to empirically test the function of the elytra using Tribolium castaneum (the red flour beetle) as a model. We tested four categories of Cited by: A comparison of the influence of thermal processing and broiling on naturally occurring and spiked residue of DDT and its metabolites in ground beef.

of Agric. and Food Chem. Kells, J.J., C.E. Reich, R.L. Blevens and W.M. Muir. Bibliography of stored-product protection now has more t records. Aaron, S. The pantry moth. The influence of prior environments on the demography of Tribolium castaneum.

Doctoral dissertation, University of Chicago. Dynamics of extinction in coupled populations of the flour beetle Tribolium castaneum. Godoy, W. I; Costa, M. I Departamento de Parasitologia, IB, Universidade Estadual Paulista, CEPBotucatu, SP, Brazil and Centro Virtual de Pesquisa Ciência e Computação para a Complexidade, UNESP II Coordenação de Sistemas e Controle, Laboratório Nacional de Computação.

The addition of a competitor, Tribolium freemani, further reduces the per capita growth rate of T. castaneum by for every T. freemani individuals. If all of the T. freemani were removed and there were just 1, T. castaneum individuals, what would be the per capita growth rate of the T.

castaneum population. The influence of the ability to disperse on generation length and population size in the flour beetle, Tribolium castaneum. The red flour beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) has had a long association with human stored food and can be a major pest in anthropogenic structures used for the processing and storage of grain-based products.

Anthropogenic structures are fragmented landscapes characterized by spatially and temporally patchy by: The development, relative retention, and fecundity of the red flour beetle, Tribolium castaneum (Herbst), on six different types of starches, flour, and flour plus yeast were investigated in the laboratory.

The size of 90% of particles among the starches was below 15 to 58 μm, while that of the flour was below μm. General information about Tribolium castaneum (TRIBCA) Name Language; red grain beetle: English: red meal beetle: English: rust red flour beetle.

Resistance to the fumigant phosphine in Tribolium castaneum occurs worldwide. This study evaluated tests based on adult knockdown time, the time for a beetle to become immobile, when exposed to a high concentration of phosphine.

We recorded knockdown times of beetles that remained completely still for 30 s when exposed to ppm of phosphine in a large, gas-tight glass by: 2.

Tribolium castaneum (Herbst), reared at 29Ð31 C and 66Ð70% RH were assessed. Five pairs of male and female T. castaneum were reared on the respective diets for 28 d before the experimental setup was dismantled and adult counts were recorded.

In another experiment, the insects were allowed toFile Size: KB. We tested, in an olfactometer, whether or not Tribolium castaneum Herbst (Coleoptera: Tenebrionidae) responds preferentially to the volatiles that emanate from the fungi associated with cotton [Gossypium hirsutum L.

(Malvaceae)] seed over those that emanate from cereals, because cereals are usually portrayed as the primary resources of these by: View Tribolium Castaneum Research Papers on for free. The red flour beetle Tribolium castaneum is a known pest of various grains and stored-products such as wheat flours; however, T.

castaneum feeds on and infests soybean and soy products. For more than 60 years, soy flour has been suggested to be unstable food for Tribolium spp. because it causes larval development failure. However, it remains unknown whether soy flour affects adult beetles. We propose that changes in movement behavior may be a proximate mechanism that influences the accumulation of animals at habitat edges.

We tested this idea with a combination of empirical and simulation experiments in a resource-free landscape. The movements of individual flour beetles, Tribolium confusum, were tracked across a paper arena edged with invisible tape until beetles Cited by: 5.

Tribolium castaneum, with small levels of pairwise nuclear genetic divergence (. The red flour beetle Tribolium castaneum (Herbst) infests stored products (Beeman, ) and has been kept in laboratory cultures for many years.

Many aspects of its reproduction are well understood, and it has advanced to become a major model organism in studies of sexual selection and sexual conflict (Fedina & Lewis, ; Pai & Bernasconi Cited by: Influence of Environmental and Physical Factors on Capture of Tribolium castaneum (Coleoptera: Tenebrionidae) in a Flour Mill ALTAIR A.

SEMEAO, 1,2 JAMES F. .We exposed wheat‐adapted populations of the flour beetle (Tribolium castaneum) to a novel suboptimal corn resource, to test the effects of founding genetic variation on population decline and subsequent extinction or adaptation.

As previously reported, genetically diverse Cited by: