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Sakurai Y, Ikeda Y. Effect of visual lateralization on the spatial position of individuals within a school of oval squid (Sepioteuthis lessoniana). J Comp Physiol A Neuroethol Sens Neural Behav Physiol 2024; 210:381-398. [PMID: 37515730 DOI: 10.1007/s00359-023-01654-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 06/23/2023] [Accepted: 06/29/2023] [Indexed: 07/31/2023]
Abstract
The spatial position of individuals within a social group, which provides the group members with benefits and costs, is determined by several physical and physiological factors. Lateralization (left and right asymmetry of morphology and behavior) could also be factors determining the individual's positions within a group. However, this possibility has been documented in some fish species, but never in an invertebrate species. This study investigates the association between spatial positions and lateralization in oval squid, Sepioteuthis lessoniana, which displays social behavior, such as schooling and lateralization for eye use (visual lateralization). The direction and strength of visual lateralization were determined for single squid by observing which eye was used to detect the prey, predators, and conspecifics. The spatial positions of individuals were determined by identifying whether the squids were in the left or right side from the center of the school. When the prey was presented to schooling squids, strongly lateralized squids against prey positioned themselves on the right side, whereas weakly lateralized squids positioned themselves on the left side. When the predator was presented to squids, the strongly lateralized squids against the conspecifics positioned themselves on the right side, and the weakly lateralized squids positioned themselves on the left side. When no targets were presented, the strongly lateralized squids against the predator positioned themselves on the right side, whereas the weakly lateralized squids positioned themselves on the left side. The strength of visual lateralization of oval squid could offer the defensive and offensive functions of schools with specific individual positions.
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Affiliation(s)
- Yuma Sakurai
- Department of Marine and Environmental Sciences, Graduate School of Engineering and Science, University of the Ryukyus, Senbaru, Nishihara, Okinawa, 903-0213, Japan
- Department of Biological Sciences, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Yuzuru Ikeda
- Department of Chemistry, Biology and Marine Science, Faculty of Science, University of the Ryukyus, Senbaru, Nishihara, Okinawa, 903-0213, Japan.
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de Tommaso C, Ferri A, Domenichelli F, Lucidi P. Does the Evolutionarily Stable Strategy apply to captive Humboldt penguins? Study on S. humboldti lateralized behavior. Appl Anim Behav Sci 2022. [DOI: 10.1016/j.applanim.2022.105780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Romano D, Benelli G, Stefanini C. Lateralization of Courtship Traits Impacts Pentatomid Male Mating Success—Evidence from Field Observations. INSECTS 2022; 13:insects13020172. [PMID: 35206745 PMCID: PMC8876970 DOI: 10.3390/insects13020172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/01/2022] [Accepted: 02/02/2022] [Indexed: 12/01/2022]
Abstract
Simple Summary Although a growing number of studies have reported asymmetries of brain and behavior in various insect orders, detailed information on lateralization in the courtship and mating behavior of insects in the wild is scarce. In this research, we studied the courtship and mating behavior of the neem bug, Halys dentatus, in the field, quantifying lateralized behavioral displays, and assessing their impact on male mating success. A population-level lateralization in males approaching females was found. Furthermore, the male mating success was affected by lateralization; right-biased males achieved higher mating success rates. Overall, our results add useful knowledge on the reproductive behavior of H. dentatus in the field, with potential applications for identifying useful benchmarks to monitor the quality of individuals mass-reared for pest control purposes over time. This study furtherly highlights the role of lateralized traits in determining male mating success in insects. Abstract Lateralization has been documented in many insect species, but limited information on courtship and mating lateralization in wild conditions is available. We conducted field investigation on the courtship and mating behavior of the neem bug, Halys dentatus, a polyphagous insect mainly infesting Azadirachta indica, with particular attention to lateralization of mating displays. We investigated the presence of population-level behavioral asymmetries during H. dentatus sexual interactions and their influence on male mating success. Two lateralized traits were found: left or right-biased male approaches to the female and left or right-biased male turning displays. Males approaching females from their left side were mainly right-biased in the 180° turning display, and males that approached females from their right side were mainly left-biased. Right-biased males by turning 180° to carry out end-to-end genital contact, performed a lower number of copulation attempts, thus starting copula earlier than left-biased males. Mating success was higher when males approached the left side of females during sexual interactions. A higher number of successful mating interactions was observed in right-biased males when turning 180°. Our results add useful knowledge on the reproductive behavior of H. dentatus in the field, with potential applications for identifying useful benchmarks to monitor the quality of individuals mass-reared for pest control purposes over time.
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Affiliation(s)
- Donato Romano
- The BioRobotics Institute, Sant’Anna School of Advanced Studies, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy;
- Department of Excellence in Robotics and AI, Sant’Anna School of Advanced Studies, 56127 Pisa, Italy
- Correspondence:
| | - Giovanni Benelli
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy;
| | - Cesare Stefanini
- The BioRobotics Institute, Sant’Anna School of Advanced Studies, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy;
- Department of Excellence in Robotics and AI, Sant’Anna School of Advanced Studies, 56127 Pisa, Italy
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Karenina K, Giljov A. Lateralization in feeding is food type specific and impacts feeding success in wild birds. Ecol Evol 2022; 12:e8598. [PMID: 35154659 PMCID: PMC8820115 DOI: 10.1002/ece3.8598] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/15/2022] [Accepted: 01/19/2022] [Indexed: 11/11/2022] Open
Abstract
Current research suggests that hemispheric lateralization has significant fitness consequences. Foraging, as a basic survival function, is a perfect research model to test the fitness impact of lateralization. However, our understanding of lateralized feeding behavior is based predominantly on laboratory studies, while the evidence from wild animals in natural settings is limited. Here we studied visual lateralization in yellow-footed green pigeons (Treron phoenicoptera) feeding in the wild. We aimed to test whether different types of food objects requiring different searching strategies elicit different eye/hemisphere biases. When feeding on relatively large, uniformly colored food objects (mahua flowers) which can be present or absent in the viewed patch, the majority of pigeons relied mostly on the left eye-right hemisphere. In contrast, when feeding on smaller and more abundant food objects, with color cues signaling its ripeness (sacred figs), right-eye (left-hemisphere) preference prevailed. Our results demonstrate that oppositely directed visual biases previously found in different experimental tasks occur in natural feeding situations in the form of lateralized viewing strategies specific for different types of food. The results suggest that pigeons rely on the hemisphere providing more advantages for the consumption of the particular type of food objects, implying the relevance of brain lateralization as a plastic adaptation to ecological demands. We assessed the success of food discrimination and consumption to examine the link between lateralization and cognitive performance. The use of the preferred eye resulted in better discrimination of food items. Discrimination accuracy and feeding efficiency were significantly higher in lateralized individuals. The results showed that visual lateralization impacted pigeons' feeding success, implicating important fitness benefits associated with lateralization.
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Affiliation(s)
- Karina Karenina
- Department of Vertebrate Zoology Saint Petersburg State University Saint Petersburg Russia
| | - Andrey Giljov
- Department of Vertebrate Zoology Saint Petersburg State University Saint Petersburg Russia
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Frasnelli E. Evolution and function of neurocognitive systems in non-human animals. Sci Rep 2021; 11:23487. [PMID: 34880266 PMCID: PMC8654867 DOI: 10.1038/s41598-021-02736-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Elisa Frasnelli
- CIMeC Center for Mind/Brain Sciences, University of Trento, Piazza della Manifattura 1, 38068, Rovereto, TN, Italy. .,School of Life Sciences, University of Lincoln, Lincoln, Lincolnshire, LN6 7DL, UK.
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Individual Laterality in Ghost Crabs (Ocypode saratan) Influences Burrowing Behavior. Symmetry (Basel) 2021. [DOI: 10.3390/sym13081512] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Behavioral handedness is known to enhance an individual’s handling capabilities. However, the ecological advantages in brachyuran crustaceans remain unclear, despite the Ocypode species having been studied extensively. Thus, in this study, we analyzed the laterality of the endemic Red Sea ghost crab on one beach in Eilat, Israel. We successfully documented the laterality of the large cheliped in 125 crabs; in 60 (48.0%), the right cheliped was larger, and in 64 (51.2%), the left. We also observed temporal segregation between the right- and left-clawed crabs. The right-handed crabs start activity just after sunrise, while left-handed crabs appear ca. 40 min after it. Similarly, temporal segregations were also observed in the evening. The right-clawed crab activity peaked ca. 20 min before sunset, while the left-clawed crabs were active uniformly. Additionally, burrow entrances corresponded to the larger cheliped of the resident individual and is probably a self-defense-related behavior. We conclude that cheliped laterality in O. saratan populations should be considered as a bimodal trait, where left- and right-handedness is not under natural selection pressure.
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Zaynagutdinova E, Karenina K, Giljov A. Lateralization in monogamous pairs: wild geese prefer to keep their partner in the left hemifield except when disturbed. Curr Zool 2021; 67:419-429. [PMID: 34616939 PMCID: PMC8489114 DOI: 10.1093/cz/zoaa074] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 11/20/2020] [Indexed: 01/04/2023] Open
Abstract
Behavioural lateralization, which reflects the functional specializations of the two brain hemispheres, is assumed to play an important role in cooperative intraspecific interactions. However, there are few studies focused on the lateralization in cooperative behaviours of individuals, especially in a natural setting. In the present study, we investigated lateralized spatial interactions between the partners in life-long monogamous pairs. The male-female pairs of two geese species (barnacle, Branta leucopsis, and white-fronted, Anser albifrons geese), were observed during different stages of the annual cycle in a variety of conditions. In geese flocks, we recorded which visual hemifield (left/right) the following partner used to monitor the leading partner relevant to the type of behaviour and the disturbance factors. In a significant majority of pairs, the following bird viewed the leading partner with the left eye during routine behaviours such as resting and feeding in undisturbed conditions. This behavioural lateralization, implicating the right hemisphere processing, was consistent across the different aggregation sites and years of the study. In contrast, no significant bias was found in a variety of geese behaviours associated with enhanced disturbance (when alert on water, flying or fleeing away when disturbed, feeding during the hunting period, in urban area feeding and during moulting). We hypothesize that the increased demands for right hemisphere processing to deal with stressful and emergency situations may interfere with the manifestation of lateralization in social interactions.
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Affiliation(s)
- Elmira Zaynagutdinova
- Department of Vertebrate Zoology, Faculty of Biology, Saint Petersburg State University, Universitetskaya nab. 7–9, St Petersburg, 199034, Russia
| | - Karina Karenina
- Department of Vertebrate Zoology, Faculty of Biology, Saint Petersburg State University, Universitetskaya nab. 7–9, St Petersburg, 199034, Russia
| | - Andrey Giljov
- Department of Vertebrate Zoology, Faculty of Biology, Saint Petersburg State University, Universitetskaya nab. 7–9, St Petersburg, 199034, Russia
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Pougnault L, Cousillas H, Heyraud C, Huber L, Hausberger M, Henry L. Experimental Tests for Measuring Individual Attentional Characteristics in Songbirds. Animals (Basel) 2021; 11:ani11082233. [PMID: 34438691 PMCID: PMC8388455 DOI: 10.3390/ani11082233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/13/2021] [Accepted: 07/21/2021] [Indexed: 11/16/2022] Open
Abstract
Attention is defined as the ability to process selectively one aspect of the environment over others and is at the core of all cognitive processes such as learning, memorization, and categorization. Thus, evaluating and comparing attentional characteristics between individuals and according to situations is an important aspect of cognitive studies. Recent studies showed the interest of analyzing spontaneous attention in standardized situations, but data are still scarce, especially for songbirds. The present study adapted three tests of attention (towards visual non-social, visual social, and auditory stimuli) as tools for future comparative research in the European starling (Sturnus vulgaris), a species that is well known to present individual variations in social learning or engagement. Our results reveal that attentional characteristics (glances versus gazes) vary according to the stimulus broadcasted: more gazes towards unusual visual stimuli and species-specific auditory stimuli and more glances towards species-specific visual stimuli and hetero-specific auditory stimuli. This study revealing individual variations shows that these tests constitute a very useful and easy-to-use tool for evaluating spontaneous individual attentional characteristics and their modulation by a variety of factors. Our results also indicate that attentional skills are not a uniform concept and depend upon the modality and the stimulus type.
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Affiliation(s)
- Loïc Pougnault
- CNRS, EthoS (Éthologie Animale et Humaine)-UMR 6552, University Rennes, Normandie University, F-35000 Rennes, France; (L.P.); (H.C.); (C.H.); (M.H.)
| | - Hugo Cousillas
- CNRS, EthoS (Éthologie Animale et Humaine)-UMR 6552, University Rennes, Normandie University, F-35000 Rennes, France; (L.P.); (H.C.); (C.H.); (M.H.)
| | - Christine Heyraud
- CNRS, EthoS (Éthologie Animale et Humaine)-UMR 6552, University Rennes, Normandie University, F-35000 Rennes, France; (L.P.); (H.C.); (C.H.); (M.H.)
| | - Ludwig Huber
- Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine Vienna, 1210 Vienna, Austria;
| | - Martine Hausberger
- CNRS, EthoS (Éthologie Animale et Humaine)-UMR 6552, University Rennes, Normandie University, F-35000 Rennes, France; (L.P.); (H.C.); (C.H.); (M.H.)
| | - Laurence Henry
- CNRS, EthoS (Éthologie Animale et Humaine)-UMR 6552, University Rennes, Normandie University, F-35000 Rennes, France; (L.P.); (H.C.); (C.H.); (M.H.)
- Correspondence:
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Hausberger M, Henry L, Rethoré B, Pougnault L, Kremers D, Rössler C, Aubry C, Cousillas H, Boye M, Lemasson A. When perceptual laterality vanishes with curiosity: A study in dolphins and starlings. Laterality 2021; 26:238-259. [PMID: 33653219 DOI: 10.1080/1357650x.2021.1890758] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Sensory laterality is influenced by the individual's attentional state. There are variations in the way different individuals of a same species attend to stimuli. When confronted to novelty, some individuals are more explorative than others. Curiosity is composed of sensation and knowledge seeking in humans. In the present study, we hypothesized that more curious animals, i.e., showing more sensory exploration would be less lateralized than quietly attentive individuals, performing instead more gazing behaviours. In order to test this hypothesis and its possible generality, we performed two studies using two animal models (dolphins and starlings) and two modalities (visual and auditory) of presentation of species-specific and non-species-specific stimuli. Both dolphins and starlings presented more gazes for the species-specific stimuli and more exploratory components for the non-species-specific stimuli. Moreover, in both cases, the non-species-specific stimuli involved more lateralized responses whereas there was no or less clear laterality for the species-specific stimuli. The more exploratory dolphins and starlings also showed a decreased laterality: the more "curious" individuals showed no laterality. Further studies are needed on characterization of curiosity in relation to attention structure. The present study suggests that individual variations in sensory laterality may help disentangle the subtle differences between curiosity, attention and boldness.
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Affiliation(s)
- Martine Hausberger
- Laboratoire d'Ethologie animale et humaine, UMR 6552, CNRS, Université de Caen-Normandie, Université de Rennes, Rennes, France
| | - Laurence Henry
- Laboratoire d'Ethologie animale et humaine, UMR 6552, CNRS, Université de Caen-Normandie, Université de Rennes, Rennes, France
| | - Barbara Rethoré
- Laboratoire d'Ethologie animale et humaine, UMR 6552, CNRS, Université de Caen-Normandie, Université de Rennes, Rennes, France
| | - Loïc Pougnault
- Laboratoire d'Ethologie animale et humaine, UMR 6552, CNRS, Université de Caen-Normandie, Université de Rennes, Rennes, France
| | - Dorothee Kremers
- Laboratoire d'Ethologie animale et humaine, UMR 6552, CNRS, Université de Caen-Normandie, Université de Rennes, Rennes, France
| | - Christiane Rössler
- Laboratoire d'Ethologie animale et humaine, UMR 6552, CNRS, Université de Caen-Normandie, Université de Rennes, Rennes, France
| | - Christine Aubry
- Laboratoire d'Ethologie animale et humaine, UMR 6552, CNRS, Université de Caen-Normandie, Université de Rennes, Rennes, France
| | - Hugo Cousillas
- Laboratoire d'Ethologie animale et humaine, UMR 6552, CNRS, Université de Caen-Normandie, Université de Rennes, Rennes, France
| | - Martin Boye
- Département Scientifique et Pédagogique, Planète Sauvage, Port-Saint-Père, France
| | - Alban Lemasson
- Laboratoire d'Ethologie animale et humaine, UMR 6552, CNRS, Université de Caen-Normandie, Université de Rennes, Rennes, France
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