Factors influencing functional response, handling time and searching efficiency of Anthocoris minki Dohrn (Hem.: Anthocoridae) as predator of Psyllopsis repens Loginova (Hem.: Psyllidae)

Hassanzadeh-Avval, Maryam; Namaghi, Hussein Sadeghi; Fekrat, Lida

doi:10.1007/s12600-019-00739-w

Cited by 8 publications

(9 citation statements)

References 39 publications

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“…Type II FR is associated with unstable predator-prey dynamics [39,40]. However, in more natural setups, predators displaying type II FR may be under the pressure of stabilizing elements such as temperature [33], host plant species [70], presence of alternative prey [43], prey distribution [44], prey species [71], prey size [72], and spatial complexity [42], which may approach their predatory activity to a type III FR. In our case, although the combination of the AIC method with the logistic regression indicated that a type II FR model was preferable, the low ∆AIC between type II and III models suggests that the type III model could also fit well, particularly on E. kuehniella, M. persicae and T. absoluta (Table 6, Figure 1).…”

Section: Discussionmentioning

confidence: 99%

Functional Response and Predation Rate of Dicyphus cerastii Wagner (Hemiptera: Miridae)

Abraços-Duarte

Ramos

Valente

et al. 2021

Insects

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Dicyphine mirids are important biological control agents (BCAs) in horticultural crops. Dicyphus cerastii Wagner can be found in protected tomato crops in Portugal, and has been observed feeding on several tomato pests. However, the predation capacity of this species is poorly studied. In order to investigate the predation capacity of D. cerastii, and how it is affected by prey size and mobility, we evaluated the functional response (FR) and predation rate of female predators on different densities of four prey species: Myzus persicae 1st instar nymphs (large mobile prey), Bemisia tabaci 4th instar nymphs, Ephestia kuehniella eggs (large immobile prey) and Tuta absoluta eggs (small immobile prey). Experiments were performed on tomato leaflets in Petri dish arenas for 24 h. Dicyphus cerastii exhibited type II FR for all prey tested. The predator effectively preyed upon all prey, consuming an average of 88.8 B. tabaci nymphs, 134.4 E. kuehniella eggs, 37.3 M. persicae nymphs and 172.3 T. absoluta eggs. Differences in the FR parameters, attack rate and handling time, suggested that prey size and mobility affected predation capacity. Considering the very high predation rates found for all prey species, D. cerastii proved to be an interesting candidate BCA for tomato crops.

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Section: Discussionmentioning

confidence: 99%

Functional Response and Predation Rate of Dicyphus cerastii Wagner (Hemiptera: Miridae)

Abraços-Duarte

Ramos

Valente

et al. 2021

Insects

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“…The experimental arena consisted of clear Petri dishes (9 cm diameter), with a micromesh screen over the top for ventilation and bottom covered with clean cucumber leaf disk. The desiccation of cucumber leaf disc was prevented by adding 1% agar solution 79 . The assays were performed with H. axyridis larvae (i.e., 1st instar, 2nd instar, 3rd instar, 4th instar) and adults (male, female) at five constant temperatures (i.e., 15, 20, 25, 30, 35 °C).…”

Section: Methodsmentioning

confidence: 99%

Functional response of Harmonia axyridis preying on Acyrthosiphon pisum nymphs: the effect of temperature

Islam

Shah

Rubing

et al. 2021

Sci Rep

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In the current study, we investigated the functional response of Harmonia axyridis adults and larvae foraging on Acyrthosiphon pisum nymphs at temperatures between 15 and 35 °C. Logistic regression and Roger’s random predator models were employed to determine the type and parameters of the functional response. Harmonia axyridis larvae and adults exhibited Type II functional responses to A. pisum, and warming increased both the predation activity and host aphid control mortality. Female and 4th instar H. axyridis consumed the most aphids. For fourth instar larvae and female H. axyridis adults, the successful attack rates were 0.23 ± 0.014 h−1 and 0.25 ± 0.015 h−1; the handling times were 0.13 ± 0.005 h and 0.16 ± 0.004 h; and the estimated maximum predation rates were 181.28 ± 14.54 and 153.85 ± 4.06, respectively. These findings accentuate the high performance of 4th instar and female H. axyridis and the role of temperature in their efficiency. Further, we discussed such temperature-driven shifts in predation and prey mortality concerning prey-predator foraging interactions towards biological control.

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“…Then, a male or female individual was added to a triple-vented Petri dish (55 mm in diameter). The floor of the dish was covered with 1% set agar to provide moisture and support for leaf disks as used in the functional response experiments of Hassanzadeh-Avval et al ( 2019 ). The Petri dish contained a leaf disk of P. communis ‘Conference’ (20 mm in diameter) and C. pyri nymphs (4th − 5th instar), at one of five densities (5, 10, 15, 30 and 50 nymphs).…”

Section: Methodsmentioning

confidence: 99%

“…Although functional responses can be largely influenced by temperature (Englund et al 2011 ), there are no studies to date on the natural enemy A. nemoralis , using the prey species C. pyri , at multiple temperature regimes. Although, other functional response experiments have occurred on other anthocorid species (Kheradmand et al 2017 ; Hassanzadeh-Avval et al 2019 )d nemoralis (Emami et al 2014b ) at a single temperature (27 °C), allowing comparison.…”

Section: Introductionmentioning

confidence: 99%

Functional and Behavioral Responses of the Natural Enemy Anthocoris nemoralis to Cacopsylla pyri, at Different Temperatures

et al. 2023

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Anthocoris nemoralis is the dominant predator of pear sucker (Cacopsylla pyri) in the UK. Anthocoris nemoralis migrates into orchards in spring or is introduced as a biocontrol agent, reaching peak population levels in July-August, contributing to effective control of summer pear sucker populations. However, due to temperature dependent development and metabolism there are concerns that C. pyri populations or feeding rates may increase due to changing climatic conditions. Thus, how A. nemoralis responds to temperature, impacts its ability as a biocontrol agent. Functional response assays, monitoring attack rate and handling time of A. nemoralis and behavioral assays, using Ethovision tracking software occurred, to assess the impact of temperature on predation. Experiments were conducted at current and future July-August mean temperatures, predicted using RCP4.5 and RCP8.5 (medium and high, representative concentration pathway) emissions scenarios, using 2018 UK Climate Projections (UKCP18). All treatments demonstrated a Type II functional response, with female anthocorids demonstrating shorter handling times and higher attack rates than males. Males showed longer prey handling times at 18 °C compared to 23 °C and more time was spent active at lower temperatures for both sexes. Females did not show significant differences in attack rate or handling time in response to temperature. Overall prey consumption was also not significantly affected by temperature for either sex. This study suggests that anthocorids are likely to remain effective natural enemies under future predicted temperatures, due to non-significant differences in prey consumption.

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Factors influencing functional response, handling time and searching efficiency of Anthocoris minki Dohrn (Hem.: Anthocoridae) as predator of Psyllopsis repens Loginova (Hem.: Psyllidae)

Cited by 8 publications

References 39 publications

Functional Response and Predation Rate of Dicyphus cerastii Wagner (Hemiptera: Miridae)

Functional Response and Predation Rate of Dicyphus cerastii Wagner (Hemiptera: Miridae)

Functional response of Harmonia axyridis preying on Acyrthosiphon pisum nymphs: the effect of temperature

Functional and Behavioral Responses of the Natural Enemy Anthocoris nemoralis to Cacopsylla pyri, at Different Temperatures

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