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A relationship between handling and a developmental abnormality in the flour beetle, Tribolium spp

Published online by Cambridge University Press:  10 July 2009

Michael F. Ryan
Affiliation:
Department of Biology, University of Chicago, Illinois 60637
Michael Nathanson
Affiliation:
Department of Biology, University of Chicago, Illinois 60637

Extract

In this experimental analysis of the teratology of Tribolium, we studied the effect of crowding and handling on a disorder associated with pupal eclosion. Handling increased the incidence of the abnormality which occurred infrequently in controls: the crowding level tested by us had no effect. T. confusum Duv., strain b-I produced more abnormal beetles than T. castaneum (Hbst.), strain c-IV-a. Handling older pupae increased the disorder to a greater extent than in young and non-pupae.

The handling procedure was quite vigorous and the threshold level required to produce the effect is not known. The phenomenon might be important in population ecology but the pathway through which handling produces it is unknown.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1969

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References

Erdman, H. E. (1966). Effects of X-rays on metamorphosis and adult life span of flour beetles.—Nature, Lond. 211 no. 5056, 14271428.CrossRefGoogle ScholarPubMed
Howe, R. W. (1962). Observations on the rate of growth and disruption of moulting in the larvae and pupae of Tribolium castaneum (Herbst) (Coleoptera, Tenebrionidae) at sub-threshold temperatures.—Entomologia exp. appl. 5, 211222.CrossRefGoogle Scholar
Lloyd, M. (1957). Productivity, cannibalism and population size in two laboratory strains of Tribolium castaneum.—124 pp. Ph.D. thesis, Univ. Chicago, Ill.Google Scholar
Mertz, D. B. (1969). Age-distribution and abundance in populations of flour beetles. I. Experimental studies.—Ecol. Monogr. 38, 131.CrossRefGoogle Scholar
Park, T. (1936). A note on the occurrence of a pupal abnormality in the flour beetle Tribolium confusum Duval.—J. Wash. Acad. Sci. 36, 543545.Google Scholar
Park, T., Leslie, P. H. & Mertz, D. B. (1964). Genetic strains and competition in populations of Tribolium.—Physiol. Zoöl. 37, 97162.CrossRefGoogle Scholar
Ryan, M. F. (1967). Studies of the natural mortality of the wheat-bulb fly, Leptohylemia coarctata Fall. (Diptera: Anthomyiidae).—230 pp. Ph.D. thesis, Univ. London.Google Scholar
Scheffe, H. (1959). The analysis of variance.—477 pp. New York, Wiley.Google Scholar
Slater, J. V., Buckhold, B. & Tobias, C. A. (1968). Effect on a flour beetle of irradiation during space flight.—BioScience 16, 595597.CrossRefGoogle Scholar
Steinhaus, E. A. & Zeikus, R. D. (1968). Teratology of the beetle Tenebrio molitor. I. Gross morphology of certain abnormality types.—J. Invert. Path. 10, 190210.CrossRefGoogle Scholar