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Functional and Numerical Responses of Coccinella transversalis Fab. and Cheilomenes sexmaculatus Fab. Feeding on the Melon Aphid, Aphis gossypii Glov.

Published online by Cambridge University Press:  19 September 2011

R. Veeravel  and
P. Baskaran
R. Veeravel*
Affiliation:
Department of Entomology, Faculty of Agriculture, Annamalai University, Annamalainagar-608 002, India
P. Baskaran
Affiliation:
Department of Entomology, Faculty of Agriculture, Annamalai University, Annamalainagar-608 002, India
*
Corresponding author: RV.
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Abstract

The functional response in terms of prey consumption and numerical response in terms of number of eggs laid by individual female adult predators of Coccinella transversalis Fab. and Cheilomenes (Menochilus) sexmaculatus Fab. (Coccnellidae: Coleoptera) at varied prey (Aphis gossypii Glover) (Aphididae: Homoptera) densities were investigated under laboratory conditions. The feeding rate by individual predators increased at increased prey densities, with both the coccinellids showing the Type II functional response. One hundred percent prey consumption was observed up to an initial prey density of 50 and 20 for Co. transversalis and Ch: sexmaculatus respectively. The fecundity of Co. transversalis increased at higher prey densities, but that of Ch. sexmaculatus remained unchanged.

Résumé

La réponse fonctionnelle en termes de prédation et la réponse numérique reflétée par le nombre d'oeufs individuellement pondus par les femelles matures de Coccinella transversalis Fab. et Cheilomenes (Menochilus) sexmaculatus Fab. (Coleoptera: Coccinellidae) a été étudiées dans des conditions de laboratoire, sur des densités variées de proie du puceron, Aphis gossypii Glover (Homoptera: Aphididae). Le taux de consommation par les prédateurs isolés allait de pair avec l'augmentation de la densité de proie et toutes les deux coccinelles montraient une réponse de prédation du Type II. Avec une densité respective de 50 et 20 pucerons, on a enregistré 100% de prédation pour C. transversalis et C. sexmaculatus. Chez C. transversalis, la fécondité augmentait avec l'accroissement de la densité de proie tandis que chez C. sexmaculatus cette fécondité est restée inchangée.

Keywords

functional responsenumerical responseCoccinella transversalisCheilomenes sexmaculatusAphis gossypiieggplantprey densityréponse fonctionnelleréponse numériqueCoccinella transversalisCheilomenes sexmaculatusAphis gossypiiauberginedensité de proie
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 17 , Issue 3-4 , December 1997 , pp. 335 - 339
Copyright
Copyright © ICIPE 1997

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References

REFERENCES

Agarwala, B. K. and Ghosh, M. R. (1985) Biogeographical considerations of India Aphididae (Homoptera). Ins. Matsum. N.S. 31, 1–16.Google Scholar
Agarwala, B. K. and Saha, J. L. (1986) Larval voracity, development and relative abundance of predators of Aphis gossypii on cotton in India, pp. 339–344. In Ecology of Aphidophaga (Edited by Hodek, I.). The Netherlands.Google Scholar
Arditi, R. (1983) A unified model of the functional response of predators and parasitoids. J. Anim. Ecol. 52, 293–303.CrossRefGoogle Scholar
Baskaran, P. and Sambasivam, A. (1984) A note on aphidophagous coccinellids and syrphids found at Annamalainagar, Tamil Nadu. Madras Agric. J. 71, 204–205.Google Scholar
Butani, D. K. and Jotwani, M. G. (1984) Insect pests of vegetables and their control. Pesticides XV, 33–37.Google Scholar
Hassell, M. P., Lawton, J. H. and Beedington, J. R. (1976) The components of arthropod predation I. The prey death rate. J. Anim. Ecol. 45, 135–164.Google Scholar
Hodek, I. (1973) Biology of Coccinellidae. Academic, Prague, 260 pp.Google Scholar
Holling, C. S. (1959) The components of predation as revealed by a study of small mammal population of European pine sawfly. Can. Entomol. 91, 293–320.CrossRefGoogle Scholar
Holling, C. S. (1965) The functional response of predation to prey density. Mem. Entomol. Soc. Can. 48, 1–96.Google Scholar
Ives, P. M. (1981) Feeding and egg production of two species of coccinellids in the laboratory. Can. Entomol. 133, 99–105.Google Scholar
Kawauchi, S. (1977) Effect of the different prey density on the food consumption of Propylea japonica Thunberg. (Col., Coccinellidae). Kurume Univ. J. 26, 67–71.Google Scholar
Lawton, J. H., Hassell, M. P. and Beedington, J. R. (1975) Prey death rates and the rate of increase of arthropod predator population. Nature 255, 60–62.CrossRefGoogle Scholar
Livdahl, T. P. and Stiven, A. E. (1983) Statistical difficulties in the analysis of predator functional response data. Can. Entomol. 115, 1365–1370.CrossRefGoogle Scholar
Mills, N. J. (1982) Voracity, cannibalism and coccinellid predation. Ann. Appl. Biol. 101, 144–148.Google Scholar
Murdoch, W. W. (1972) Quantitative evaluation of natural enemy effectiveness. 14th International Congress of Entomology Symposium, Canberra, 335–341.Google Scholar
Ofuya, T. I. (1986) Predation by Cheilomenes vicina (Coleoptera: Coccinellidae) on the cowpea aphids, Aphis craccivora (Homoptera: Aphididae) effect of prey stage and density. Entomophaga 31, 331–335.CrossRefGoogle Scholar
Pandey, K. P., Kumar, A., Singh, R. and Shankar, S. (1984) Numerical response and area of discovery of a predator, Coccinella septempunctata L. Z. Angew. Entomol. 97, 410–123.Google Scholar
Popov, P. (1960) Role of Coccinella septempunctata L. in the biological control of aphids. Seiskostop. Misul, Sofia 152–153.Google Scholar
Radke, S. G., Darward, W. L. and Mundiwale, S. K. (1977) Influence of age of predator Coccinella septempunctata L. and population densities of the host Rhopalosiphum maidis (Fitch.) (Homoptera: Aphididae) on the rate of predation. Indian J. Agric. Sci. 47, 305–308.Google Scholar
Readshaw, J. L. (1973) The numerical response of predators to prey density. J. Appl. Ecol. 10, 242–351.Google Scholar
Rogers, D. J. (1972) Random search and insect population models. J. Anim. Ecol. 41, 369–383.CrossRefGoogle Scholar
Royama, T. (1971) A comparative study of models for predation and parasitism. Res. Popul. Ecol. Kyoto Univ. Suppl. 1, 91.Google Scholar
Saharia, D. (1983) Some aspects of the biology of three coccinellid predators of Myzus persicae (Sulz.) on eggplant, J. Res. Assam. Agric. Univ. 4, 78–82.Google Scholar
Sambasivam, A. (1982) Studies on certain aphidophagous predators of Annamalainagar with reference to their biology and predatory potential. MSc (Agric.) Thesis, Annamalai Univ., Annamalainagar, India.Google Scholar
Shands, W. A. and Simpson, G. W. (1972) Insect predators for controlling aphids on potatoes 2. In small plots with two kinds of barriers, in smaller fields or in large cages, J. Econ. Entomol. 65, 514–518.CrossRefGoogle Scholar
Sinha, T. B., Pandey, R. K., Rajendrasingh, , Tripathi, C. P. M. and Kumar, A. (1982) The functional response of Coccinella septempunctata Linn., a coccinellid. Entomon. 7, 7–10.Google Scholar
Waage, J. (1990) Ecological theory and selection of biological control agents, pp. 135–157. In Critical Issues in Biological Control (Edited by Mackaner, M., Enler, L. E. and Roland, J.). Intercept, Andover.Google Scholar