Functional response of six indigenous trichogrammatid egg parasitoids (Hymenoptera: Trichogrammatidae) in Kenya: influence of temperature and relative humidity

Kalyebi, A.; Overholt, William A.; Schulthess, Fritz; Mueke, J. M.; Hassan, S. A.; Sithanantham, S.

doi:10.1016/j.biocontrol.2004.09.006

Cited by 51 publications

(37 citation statements)

References 26 publications

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“…The results indicate that female adults of N. tenuis exhibited a type II functional response at 15 and 25°C, but a type III response at 35°C. This supports previous fi ndings on how environmental conditions (namely temperature) can affect the type of functional response of a predator (Kfi r, 1983;Wang & Ferro, 1998;Mohaghegh et al, 2001;Kalyebi et al, 2005).…”

Section: Discussionsupporting

confidence: 90%

Temperature-dependent functional response of Nesidiocoris tenuis (Hemiptera: Miridae) to different densities of pupae of cotton whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae)

Madbouni¹,

Samih²,

Namvar³

et al. 2017

Eur. J. Entomol.

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Section: Discussionsupporting

confidence: 90%

Temperature-dependent functional response of Nesidiocoris tenuis (Hemiptera: Miridae) to different densities of pupae of cotton whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae)

Madbouni¹,

Samih²,

Namvar³

et al. 2017

Eur. J. Entomol.

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“…For males aged 9 d or more, both Type I or Type II models were compared to determine the one that best fits the data using the Akaike Information Criteria (AIC) (Sakamoto et al, 1986;Kalyebi et al, 2005): AIC = n log (MSE) + 2q, where n is sample size, MSE is mean square error and q is number of parameters; the smaller the value of AIC, the better the fit.…”

Section: Discussionmentioning

confidence: 99%

Functional response of the predator Scolothrips takahashii to hawthorn spider mite, Tetranychus viennensis: effect of age and temperature

2006

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A leaf disc bioassay was employed to examine the effects of temperature and predator age on functional response of an acarophagous thrips, Scolothrips takahashii Priesner, to hawthorn spider mite, Tetranychus viennensis Zacher, in the laboratory. The results indicated that the predatory thrips exhibited type-II functional responses against the mites under various temperatures, and that females are more voracious than males. Analysis showed that temperature had significant effects on the predatory capacity of adult thrips over the range of 20-35°C. Attack rate in females linearly increased with temperature while in males it was independent of temperature. Handling times in both males and females decreased linearly with increasing temperature. Extended response models describing the functional response with temperature incorporated as a parameter were developed, yielding an estimated maximum numbers of prey attacked at four temperatures were 38.38, 55.06, 71.74 and 88.42 eggs per day for females , and 15.11, 26.11, 37.11 and 48.01 eggs per day for males, respectively. The age of predator affected both the type of the functional response shown and the magnitude of predation by S. takahashii on the spider mite. Females of various ages exhibited Type-II functional responses with similar attack rates, but handling time prolonged linearly as age increased: the handling times in 15-and 18-d-old females were significantly longer than in 6-d-old thrips. However, Type-I functional responses were determined for males aged 12 d or more; the maximum number of prey eaten in 24 h decreased as age increased. The implications of the results for the management of hawthorn spider mite are discussed.

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“…Temperature is a critical abiotic factor influencing the dynamics of arthropods and their natural enemies (Huffaker, Berryman, and Turchin 1999).There is some evidence indicating that environmental variables such as temperature can influence the functional response of natural enemies (Mohaghegh, De Clercq, and Tirry 2001;Skirvin and Fenlon 2003;Kalyebi et al 2005). Therefore an understanding of the influence of temperature on pest and natural enemy interactions is crucial in determining future strategies for biological control.…”

Section: Introductionmentioning

confidence: 99%

Functional response ofTelenomus busseolae(Hym.: Scelionidae) an egg parasitoid of the sugarcane stem borer,Sesamia nonagrioides(Lep.: Noctuidae) at different temperatures

Jamshidnia

Kharazi-Pakdel

Allahyari

et al. 2010

Biocontrol Science and Technology

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Telenomus busseolae Gahan is the most important egg parasitoid of sugarcane stem borers in Iran. Laboratory experiments were conducted to evaluate the functional response of T. busseolae to egg densities of Sesamia nonagrioides (Lefebvre) under four different temperatures (20, 25, 30 and 358C). Results of logistic regression revealed a type III functional response for all temperatures tested and type of functional response was not affected by temperature. Roger's random parasite equation was fitted to observed data at 358C. In the other data sets (collected data under 20, 25 and 30 8C) Roger's equation could not provide meaningful parameters, therefore Holling's disk equation was used to fit the data. The attack rate for T. busseolae varying from 0.001784 to 0.10704, 0.0026 to 0.152, 0.0024 to 0.144 and 0.000866 to 0.05196 per h and estimated handling times were 0.59, 0.50, 0.53 and 0.29 h at 20, 25, 30 and 358C, respectively. Based on asymptotic 95% confidence intervals, functional response parameters did not differ significantly from 20 to 308C, which indicates that handling time and attack rate are least affected by the temperature changes. The results suggest a similar performance of T. busseolae against S. nonagrioides eggs at temperatures of 20Á308C. These results show that T. busseolae is well adapted to temperature changes during the sugarcane growing season.

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Functional response of six indigenous trichogrammatid egg parasitoids (Hymenoptera: Trichogrammatidae) in Kenya: influence of temperature and relative humidity

Cited by 51 publications

References 26 publications

Temperature-dependent functional response of Nesidiocoris tenuis (Hemiptera: Miridae) to different densities of pupae of cotton whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae)

Temperature-dependent functional response of Nesidiocoris tenuis (Hemiptera: Miridae) to different densities of pupae of cotton whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae)

Functional response of the predator Scolothrips takahashii to hawthorn spider mite, Tetranychus viennensis: effect of age and temperature

Functional response ofTelenomus busseolae(Hym.: Scelionidae) an egg parasitoid of the sugarcane stem borer,Sesamia nonagrioides(Lep.: Noctuidae) at different temperatures

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