FUNCTIONAL RESPONSE OF SERANGIUM MONTAZERII (COL.: COCCINELLIDAE) TO DIFFERENT DENSITIES OF DIALEURODES CITRI (HEM.: ALEYRODIDAE): AN OPEN-PATCH APPROACH

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FOTUKIAN S.M.; SAHRAGARD A.

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Journal: Journal of Entomological Society of Iran Year:2013 | Volume:33 | Issue:2 Page(s): 1-7

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Title

FUNCTIONAL RESPONSE OF SERANGIUM MONTAZERII (COL.: COCCINELLIDAE) TO DIFFERENT DENSITIES OF DIALEURODES CITRI (HEM.: ALEYRODIDAE): AN OPEN-PATCH APPROACH

Author(s)

FOTUKIAN S.M. | SAHRAGARD A. | Issue Writer Certificate

Keywords

SERANGIUM MONTAZERIIQ2

DIFFERENT DENSITIESQ2

FUNCTIONAL RESPONSEQ2

OPEN PATCHQ2

Abstract

The FUNCTIONAL RESPONSE of a predator is the base of prey-predator dynamics. FUNCTIONAL RESPONSE of SERANGIUM MONTAZERII Fürsch at different egg densities (50, 100, 150, 200 and 250) of Dialeurodes citri (Ashmead) was studied in an open-patch experiment, in a growth chamber (25 ± 1oC, 65 ± 5% RH and a photoperiod of 16: 8 L: D h) on ‘Thompson’ navel orange (Citrus sinensis cv. Thompson) apical leaves. A type II FUNCTIONAL RESPONSE was obtained using logistic regression. The searching efficiency (a') and handling times (Th) of the female adults using nonlinear least-square regression were estimated as 0.0421 ± 0.00945 h-1 and 0.0896 ± 0.0362 h, respectively. Mean times required for the female predator to settle in a patch were 121.4, 140, 116, 83 and 78 minutes at above-mentioned prey densities, respectively. It was inversely density dependent (R2 = 0.740). The proportion of female predators remaining in OPEN PATCHes at the end of the experiment was directly dependent on prey density (R2 = 0.9). It was concluded that the type of FUNCTIONAL RESPONSE obtained here was in agreement with studies on this predator in closed patches.

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APA: Copy

FOTUKIAN, S.M., & SAHRAGARD, A.. (2013). FUNCTIONAL RESPONSE OF SERANGIUM MONTAZERII (COL.: COCCINELLIDAE) TO DIFFERENT DENSITIES OF DIALEURODES CITRI (HEM.: ALEYRODIDAE): AN OPEN-PATCH APPROACH. JOURNAL OF ENTOMOLOGICAL SOCIETY OF IRAN (JESI), 33(2), 1-7. SID. https://sid.ir/paper/47869/en

Vancouver: Copy

FOTUKIAN S.M., SAHRAGARD A.. FUNCTIONAL RESPONSE OF SERANGIUM MONTAZERII (COL.: COCCINELLIDAE) TO DIFFERENT DENSITIES OF DIALEURODES CITRI (HEM.: ALEYRODIDAE): AN OPEN-PATCH APPROACH. JOURNAL OF ENTOMOLOGICAL SOCIETY OF IRAN (JESI)[Internet]. 2013;33(2):1-7. Available from: https://sid.ir/paper/47869/en

IEEE: Copy

S.M. FOTUKIAN, and A. SAHRAGARD, “FUNCTIONAL RESPONSE OF SERANGIUM MONTAZERII (COL.: COCCINELLIDAE) TO DIFFERENT DENSITIES OF DIALEURODES CITRI (HEM.: ALEYRODIDAE): AN OPEN-PATCH APPROACH,” JOURNAL OF ENTOMOLOGICAL SOCIETY OF IRAN (JESI), vol. 33, no. 2, pp. 1–7, 2013, [Online]. Available: https://sid.ir/paper/47869/en

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