Journal of Biological Control

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Functional Response of Tenagogonus fluviorum (Fabricius) in its Predation of Culex quinquefasciatus Say Larvae of Varied Density and Size


Affiliations
1 Aquatic Entomology and Biocontrol Research Laboratory Post Graduate and Research Department of Advanced Zoology & Biotechnology, Loyola College, Chennai, 600 034, India
 

Male and female Tenagogottus fluviorum (Fabricius) were exposed to different size classes (I, II, III, IV and pupa) and different densities (25, 50, 75, 100, 125) of Culex quinquefasciatus larvae as prey. Predatory efficiency of the female bug is higher than that of male. However, both the sexes of the predator prefer large sized prey. The size in predatory performance of the bug is directly proportional to the increase in prey density. Attack rate and handling time as two statistical constants were derived from the prey death rate caused by the predator and their significance is discussed.

Keywords

Culex quinquefasciatus, Functional Response, Predation, Tenagogonus fluviarum.
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  • Functional Response of Tenagogonus fluviorum (Fabricius) in its Predation of Culex quinquefasciatus Say Larvae of Varied Density and Size

Abstract Views: 219  |  PDF Views: 99

Authors

S. Arivoli
Aquatic Entomology and Biocontrol Research Laboratory Post Graduate and Research Department of Advanced Zoology & Biotechnology, Loyola College, Chennai, 600 034, India
P. Venkatesan
Aquatic Entomology and Biocontrol Research Laboratory Post Graduate and Research Department of Advanced Zoology & Biotechnology, Loyola College, Chennai, 600 034, India

Abstract


Male and female Tenagogottus fluviorum (Fabricius) were exposed to different size classes (I, II, III, IV and pupa) and different densities (25, 50, 75, 100, 125) of Culex quinquefasciatus larvae as prey. Predatory efficiency of the female bug is higher than that of male. However, both the sexes of the predator prefer large sized prey. The size in predatory performance of the bug is directly proportional to the increase in prey density. Attack rate and handling time as two statistical constants were derived from the prey death rate caused by the predator and their significance is discussed.

Keywords


Culex quinquefasciatus, Functional Response, Predation, Tenagogonus fluviarum.