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Together We Stand-Analyzing Schooling Behavior in Naive Newborn Guppies through Biorobotic Predators

Journal of Bionic Engineering 2020年第1期17卷 174-184页

作者： Donato Romano Hadeel Elayan Giovanni Benelli cesare stefanini The BioRobotics Institute Sant'Anna School of Advanced StudiesPontederaPisa 56025Italy Healthcare Engineering Innovation Center(HEIC) Khalifa UniversityAbu DhabiPO Box 127788United Arab Emirates Department of Excellence in Robotics&A.I. Sant'Anna School of Advanced StudiesPisa 56127Italy Department of Electrical and Computer Engineering University of TorontoON M5SCanada Department of Agriculture Food and EnvironmentUniversity of PisaPisa 56124Italy

A major advantage of animal aggregations concerns cooperative antipredator *** behavior emerges earlier in many fish species,especially in those cannibalizing their *** is fundamental for developing schooling ***,the cognitive ability of naive newborn fish to aggregate remains ***,Poecilia reticulata,was selected as model organism to investigate how combinations of biomimetic robotic agents and adult conspecific olfactory cues affect collective responses in *** role of white and brown backgrounds in evoking aggregations was also *** cues were sufficient for triggering aggregations in *** newborns,although robotic agents had a higher influence on the group *** combination of robotic agents and olfactory cues increased schooling behavior ***,schooling was longer in the escape compartment when robotic agents were presented,except for the combination of the male-mimicking robotic fish plus adult guppy olfactory cues,with longer schooling behavior in the exploring *** of the tested cues,newborn fish aggregated preferentially on the brown areas of the ***,this research provides novel insights on the early collective cognitive ability of newborn fish,paving the way to the use of biomimetic robots in behavioral ecology experiments,as substitutes for real predators.

关键词： animal-robot interaction technology bio-hybrid intelligent systems antipredator strategy group behavior Poecilia reticulata

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Wing-fanning frequency as a releaser boosting male mating success— High-speed video analysis of courtship behavior in Campoplex capitator, a parasitoid of Lobesia botrana

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Insect Science 2020年第6期27卷 1298-1310页

作者： Giovanni Benelli Renato Ricciardi Donato Romano Francesca Cosci cesare stefanini Andrea Lucchi Department of Agriculture.Food and Environment University of PisaPisaItaly The BioRobotics Institute.Sant'Anna School of Advanced Studies PontederaPisaItaly Department of Excellence in Robotics&A.I. Sant'Anna School of Advanced StudiesPisaItaly HEIC Center BME DepartmentKhalifa UniversityAbu DhabiUAE

Campoplex capitator is an ichneumonid parasitoid with a narrow host range,comprising grapevine moth *** being considered one of the possible candidates for biocontrol of Lobesia botrana,knowledge about its biology is limited and massrearing for commercial purposes is still *** research provides a quantitative analysis of the *** courtship and mating *** mating sequence was analyzed by high-speed video *** behavioral parameters,with special reference to male wing fanning and antennal tapping,were quantified and linked with mating ***,we analyzed the occurrence of population-level behavioral asymmetries during C capitator sexual interactions and their impact on male *** showed that male wing fanning was crucial to successfully approach the *** achieving higher mating success performed wing-fanning at higher frequencies over unsuccessful *** wing fanning,most of males palpated the females body with their antennae,before attempting *** overall mating success was>70%,with a rather long copula duration(254.76±14.21 s).Male wing-fanning was lateralized on the left at population level,while antennal tapping displays were *** male displays do not differ in terms of frequency and duration of their main *** research adds basic knowledge to the *** behavioral *** rearing protocols for *** are being developed male wing fanning frequency may represent a useful benchmark for monitoring mate quality over time,tackling mating success reductions due to prolonged mass-rearing.

关键词： biological control European grapevine moth Ichneumonidae koinobiont parasitoid mass-rearing mating behavior

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Is bigger better？ Male body size affects wing-borne courtship signals and mating success in the olive fruit fly, Bactrocera oleae （Diptera： Tephritidae）

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Insect Science 2016年第6期23卷 869-880页

作者： Giovanni Benelli Elisa Donati Donato Romano Giacomo Ragni Gabriella Bonsignori cesare stefanini Angelo Canale Insect Behaviour Group Department of Agriculture Food and Environment University of Pisa Pisa The BioRobotics Institute Sant'Anna School of Advanced Studies Pontedera Italy

Variations in male body size are known to affect inter- and intrasexual selection outcomes in a wide range of animals. In mating systems involving sexual signaling before mating, body size often acts as a key factor affecting signal strength and mate choice. We evaluated the effect of male size on courtship displays and mating success of the olive fruit fly, Bactrocera oleae （Diptera： Tephritidae）. Wing vibrations performed during successful and unsuccessful courtships by large and small males were recorded by high-speed videos and analyzed through frame-by-frame analysis. Mating success of large and small males was investigated. The effect of male-male competition on mating success was evaluated. Male body size affected both male courtship signals and mating outcomes. Successful males showed wing-borne signals with high frequencies and short interpulse intervals. Wing vibrations displayed by successful large males during copulation attempt had higher frequencies over smaller males and unsuccessful large males. In no-competition conditions, large males achieved higher mating success with respect to smaller ones. Allowing large and small males to compete for a female, large males achieve more mating success over smaller ones. Mate choice by females may be based on selection of the larger males, able to produce high-frequency wing vibrations. Such traits may be indicative of ＂good genes,＂ which under sexual selection could means good social-interaction genes, or a good competitive manipulator of conspecifics.

关键词： communication channels courtship call male-male competition mate choice sexual selection social resources

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Singing on the wings! Male wing fanning performances affect female willingness to copulate in the aphid parasitoid Lysiphlebus testaceipes （Hymenoptera： Braconidae： Aphidiinae）

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Insect Science 2016年第4期23卷 603-611页

作者： Giovanni Benelli Nickolas G. Kavallieratos Elisa Donati Giulia Giunti cesare stefanini Angelo Canale Insect Behavior Group Department of Agriculture Food and Environment University of Pisa Pisa Italy Laboratory of Agricultural Entomology Department of Entomology and Agricultural Zoology Benaki Phytopathological Institute Kifissia Attica Greece The BioRobotics Institute Sant'Anna School of Advanced Studies Pontedera Pisa Italy

Lysiphlebus testaceipes （Hymenoptera： Braconidae： Aphidiinae） is a generalist endoparasitoid attacking more than 100 aphid species. In L. testaceipes, wing fanning is a main male courtship display evoked by a female-borne sex pheromone. However, no information is available on the characteristics and behavioral role of male fanning during courtship in this parasitoid. Here, the courtship behavior of a wild strain ofL. testaceipes was quantified and the male wing fanning performances were analyzed through high-speed video recordings and examined in relation to mating success. Courtship sequence of wild L. testaceipes did not substantially differ from that previously reported for other populations mass reared on aphids. We observed that the male courtship duration did not affect mating success. However, video analysis revealed that the males producing high-frequency fanning signals achieved higher mating success over those that display low-frequency fanning. Wing fanning before successful and unsuccessful courtship differed in amplitude of wing movements and alignment toward the mate, highlighting that frontal courtship positively influence the female mating decisions. This study increases knowledge on sexual behavior in a key parasitoid of aphids, highlighting the importance of wing fanning among the range of sensory modalities used in the sexual communication ofL. testaceipes. From a practical point of view, this information is useful in L. testaceipes-based biocontrol strategies, since it can help to establish parameters for quality checking of mass-reared wasps over time.

关键词： biocontrol agent courtship mating success parasitic wasp sensory ecology sexual communication

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