FUNCTIONAL RESPONSE OF PREDATORS NABIS CAPSIFORMIS AND CHRYSOPERLA EARNEA TO DIFFERENT DENSITIES OF CREONTIADESPALLIDUS NYMPHS

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FATHIPOUR Y.; JAFARI A.A.F.

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Journal: Journal of Agricultural Sciences and Natural Resources Year:2003 | Volume:10 | Issue:2 Page(s): 125-133

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Title

FUNCTIONAL RESPONSE OF PREDATORS NABIS CAPSIFORMIS AND CHRYSOPERLA EARNEA TO DIFFERENT DENSITIES OF CREONTIADESPALLIDUS NYMPHS

Author(s)

FATHIPOUR Y. | JAFARI A.A.F. | Issue Writer Certificate

Keywords

FUNCTIONAL RESPONSEQ3

NABIS CAPSIFORMISQ4

CHRYSOPERLA CARNEAQ4

CREONTIADES PALLIDUSQ3

COTTONQ3

Abstract

FUNCTIONAL RESPONSEs of adult females of NABIS CAPSIFORMIS and second instar larvae of CHRYSOPERLA CARNEA to different densities of second instar nymphs of CREONTIADES PALLIDUS were determined. In addition to type of FUNCTIONAL RESPONSE, the rate of searching efficiency, handling time, and related parameters were estimated. Second instar nymphs of C. pallidus in densities of 2, 4, 8, 10, 20 and 30 were presented to females of N. capsiformis and larvae of C. carnea for 24 hours in 10 replications, and then the numbers of eaten preys were counted. Analysis of FUNCTIONAL RESPONSE was conducted in two stages using Juliano method. Logistic regression indicated that the FUNCTIONAL RESPONSEs of both predators to different densities of C. pallidus nymphs were type n. Holling disc equation was used for estimating FUNCTIONAL RESPONSE parameters. The values of searching efficiency (a), handling time (Th), the rate of fitting of data to model (r2) maximum estimated rate of eaten preys (T/Th) and maximum observed rate of eaten preys (Namax)for N. capsiformis were 0.039, 1.82,0.89, 13.19 and 13, respectively and for C. carnea were 0.041, 1.11, 0.97, 21.69 and 15, respectively. The results indicated that the second instar larvae of C. carnea were more successful in attacking to their prey in comparison with adult females of N. capsiformis.

Cites

PREFERENCE OF NABIS CAPSIFORMIS AND CHRYSOPERLA CARNEA TO DIFFERENT NYMPH INSTARS OF CREONTIADES PALLIDUS

References

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APA: Copy

FATHIPOUR, Y., & JAFARI, A.A.F.. (2003). FUNCTIONAL RESPONSE OF PREDATORS NABIS CAPSIFORMIS AND CHRYSOPERLA EARNEA TO DIFFERENT DENSITIES OF CREONTIADESPALLIDUS NYMPHS. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 10(2), 125-133. SID. https://sid.ir/paper/9522/en

Vancouver: Copy

FATHIPOUR Y., JAFARI A.A.F.. FUNCTIONAL RESPONSE OF PREDATORS NABIS CAPSIFORMIS AND CHRYSOPERLA EARNEA TO DIFFERENT DENSITIES OF CREONTIADESPALLIDUS NYMPHS. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2003;10(2):125-133. Available from: https://sid.ir/paper/9522/en

IEEE: Copy

Y. FATHIPOUR, and A.A.F. JAFARI, “FUNCTIONAL RESPONSE OF PREDATORS NABIS CAPSIFORMIS AND CHRYSOPERLA EARNEA TO DIFFERENT DENSITIES OF CREONTIADESPALLIDUS NYMPHS,” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 10, no. 2, pp. 125–133, 2003, [Online]. Available: https://sid.ir/paper/9522/en

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