Consumption rate and functional response of the predaceous mite Kampimodromus aberrans to two-spotted spider mite Tetranychus urticae in the laboratory
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Tarih
2011
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Prey stage preference of female Kampimodromus aberrans (Oudemans) (Phytoseiidae) at constant densities of different stages of Tetranychus urticae Koch (Tetranychidae), functional response types and parameters of the predator females to the varying densities of eggs, larvae, protonymphs and deutonymps of T. urticae were determined in order to establish its potential for the mite biological control. Experiments were conducted at 25 +/- A 1A degrees C, 65 +/- A 10% RH and 16:8 (L:D) photoperiod. Our results indicated that the predator consumed significantly more prey larvae than other prey stages. Functional response type of predator was determined by a logistic regression model. The predator exhibited a Type II response on all prey stages. The attack rate (alpha) and handling time (T (h) ) coefficients of a Type II response were estimated by fitting a random-predator equation to the data. The lowest estimated value alpha and the highest value of T (h) (including digestion) were obtanined for the predator feeding on deutonmph. The lowest value of T (h) were obtained for the predator feeding on prey larvae, but the attack rate value obtained on larva wasn't different than that obtained on egg and protonymph. According to our results, K. aberrans could be an efficient biological control agent of T. urticae at least at low prey densities. However, further field based studies are needed to draw firm conclusions.
Açıklama
Anahtar Kelimeler
Functional response, Kampimodromus aberrans, Tetranychus urticae
Kaynak
Experimental and Applied Acarology
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
53
Sayı
3
