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Slow and Fast Development in Ladybirds: Occurrence, Effects and Significance : Volume 12, Issue 1 (21/05/2012)

By Mishra, G.

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Book Id: WPLBN0004023299
Format Type: PDF Article :
File Size: Pages 8
Reproduction Date: 2015

Title: Slow and Fast Development in Ladybirds: Occurrence, Effects and Significance : Volume 12, Issue 1 (21/05/2012)  
Author: Mishra, G.
Volume: Vol. 12, Issue 1
Language: English
Subject: Science, Ecology
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2012
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Omkar,, & Mishra, G. (2012). Slow and Fast Development in Ladybirds: Occurrence, Effects and Significance : Volume 12, Issue 1 (21/05/2012). Retrieved from http://www.ebooklibrary.org/


Description
Description: Ladybird Research Laboratory, Department of Zoology, University of Lucknow, Lucknow 226 007, India. Developmental and growth rates are known to vary in response to genetic, developmental, physiological and environmental factors. However, developmental variations that exist within a cohort under any constant rearing condition are not so well investigated. A few such prominent polymorphisms have been studied, but not the subtle ones. The current study investigates the presence of such varying rates of development, slow and fast, in a cohort reared under constant conditions in two ladybirds, Cheilomenes sexmaculata and Propylea dissecta. Our results reveal slow and fast developers in the cohorts of each species and the ratio of slow and fast developers was similar. Slow developers showed a female biased sex ratio. The two developmental variants differed significantly in juvenile duration only in the first instar and the pupal stage, though variations in developmental time were observed in all stages. Fecundity was higher in slow developers, but developmental rates did not affect egg viability. The similar ratio in both ladybirds indicates it to be a result of either presence of a constant ratio across species or an effect of the similar rearing environment.

Summary
Slow and fast development in ladybirds: occurrence, effects and significance

Excerpt
D'Amico, L. J., Davidowitz, G., and Nijhout, H. F.: The developmental and physiological basis of body size evolution in an insect, Proc. R. Soc. Lond. B, 268, 1589–1593, 2001.; Nylin, S. and Gotthard, K.: Plasticity in life-history traits, Annu. Rev. Entomol., 43, 63–83, 1998.; Anholt, B. R. and Werner, E. E.: Predictable changes in predation mortality as a consequence of changes in food availability and predation risk, Evol. Ecol., 12, 729–738, 1998.; Arendt, J. D.: Adaptive intrinsic growth rates: An integration across taxa, Q. Rev. Biol., 72, 149–177, 1997.; Benrey, B. and Denno, R. F.: The slow-growth-high-mortality hypothesis: a test using the cabbage butterfly, Ecology, 78, 987–999, 1997.; Berger, D., Walters, R. E., and Gotthard, K.: What keeps insects small? – Size dependent predation on two species of butterfly larvae, Evol. Ecol., 20, 575–589, 2006.; Blanckenhorn, W. U., Dixon, A. F. G., Fairbairn, D. J., Foellmer, M. W., Gilbert, P., van der Linde, K., Meier, R., Nylin, S., Pitnick, S., Schoff, C., Signorelli, M., Teder, T., and Wiklund, C.: Proximate causes of Rensch's rule: Does sexual size dimorphism in arthropods result from sex differences in development time?, Am. Nat., 169, 245–257, 2007.; Chown, S. L. and Gaston, K. J.: Body size variation in insects: a macroecological perspective, Biol. Rev., 85, 139–169, 2010.; Davidowitz, G. and Nijhout, H. F.: The physiological basis of reaction norms: the interaction among growth rate, the duration of growth and body size, Integr. Comp. Biol., 44, 443–449, 2004.; Davidowitz, G., D'Amico, L. J., and Nijhout, H. F.: The effects of environmental variation on a mechanism that controls insect body size, Evol. Ecol. Res., 6, 49–62, 2004.; Davidowitz, G., Roff, D. A., and Nijhout, H. F.: A physiological perspective on the response of body size and development time to simultaneous directional selection, Integr. Comp. Biol., 45, 525–531, 2005.; Dixon, A. F. G.: Insect Predator-Prey Dynamics, Ladybird Beetles and Biological Control, Cambridge Univ. Press, p. 257, 2000.; Ernsting, G. and Isaaks, J. A.: Ectotherms, temperature, and trade-offs: size and number of eggs in a carabid beetle, Am. Nat., 155, 804–813, 2000.; Esperk, T., Tammaru, T., Nylin, S., and Teder, T.: Achieving high sexual size dimorphism in insects: females add instars, Ecol. Entomol., 32, 243–256, 2007.; Gotthard, K.: Increased risk of predation as a cost of high growth rate: an experimental test in a butterfly, J. Anim. Ecol., 69, 896–902, 2000.; Gotthard, K.: Growth strategies of ectothermic animals in temperate environments, in: Animal Developmental Ecology, edited by: Atkinson, D. and Thorndyke, M., BIOS Scientific Publishers Ltd, Oxford, 2001.; Gotthard, K., Nylin, S., and Wiklund, C.: Adaptive variation in growth rate: life history costs and consequences in the speckled wood butterfly, Pararge aegeria, Oecologia, 99, 281–289, 1994.; Michaud, J. P.: On the assessment of prey suitability in aphidophagous Coccinellidae, Eur. J. Entomol., 102, 385–390, 2005.; Grill, C. P., Moore, A. J., and Brodie, E. D.: The genetics of phenotypic plasticity in a colonizing population of the ladybird beetles, Harmonia axyridis, Heredity, 78, 261–269, 1997.; Gross, M. R.: Disruptive selection for alternative life histories in salmon, Nature, 313, 47–48, 1985.; Hanski, I.: Four kinds of extra long diapause: a review of theory and observations, Ann. Ent. Fenn., 25, 37–53, 1988.; Hanski, I. and Stahls, G.: Prolonged diapause in fungivorous Pegomya flies, Ecol. Entomol., 15, 241–244, 1990.; Hemptinne, J. L., Gaudin, M., Dixon, A. F. G., and Lognay, J.: Social feeding in ladybird beetles: adaptive significance and mechanism, Chemoecology, 10, 149–152, 2000.; Hodek, I. and Hönek, A.: Ecology of Coccinellidae, Kluwer Academic Publishers Dordrecht Boston London, 464 pp., 1996.; Hodek, I. and Iperti, G.: Sensitivity to photoperiod in relation to diapause in Semi


 

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