Behavioural Processes最新文献_第4页

Influence of RFID tags on Melipona quadrifasciata behavior: Effects on locomotion and food choice 射频识别标签对四趾鼠行为的影响：对运动和食物选择的影响。

IF 1.5 4区生物学

Behavioural Processes Pub Date : 2026-01-01 Epub Date: 2025-11-20 DOI: 10.1016/j.beproc.2025.105310

Rebeca Emanuelle da Silva Castor , Rafaela Tadei , Paulo de Souza , Elaine Cristina Mathias da Silva , Rogério Hartung Toppa

{"title":"Influence of RFID tags on Melipona quadrifasciata behavior: Effects on locomotion and food choice","authors":"Rebeca Emanuelle da Silva Castor , Rafaela Tadei , Paulo de Souza , Elaine Cristina Mathias da Silva , Rogério Hartung Toppa","doi":"10.1016/j.beproc.2025.105310","DOIUrl":"10.1016/j.beproc.2025.105310","url":null,"abstract":"<div><div>The use of technology as a tool for evaluating insect behavior provides significant advantages to researchers, as it increases the amount of collected data, reduces observer bias, and minimizes the time and effort required for direct field observations. However, when incorporating technology into research methodologies, it is crucial to ensure that the tool does not alter the natural behavior of the studied individuals. In recent years, the use of radiofrequency electronic identification (RFID) to monitor bees has increased significantly. Yet, little is known about its potential effects on bee behavior, mainly in stingless bees. To assess the influence of electronic tags, we evaluated locomotion parameters and foraging choices by comparing feeders with and without the neonicotinoid insecticide imidacloprid in the stingless bee <em>Melipona quadrifasciata</em> under laboratory conditions using video tracking. Whereas the presence of electronic tags did not affect the food choice as measured by the frequency of bee visits to contaminated versus uncontaminated food sources, it did influence locomotion. Tagged bees exhibited reduced average speed, lower rotation frequency, shorter distances traveled, and altered arena exploration patterns. These behavioral modifications observed in laboratory conditions highlight important considerations for applying RFID technology in field studies monitoring bee behavior.</div></div>","PeriodicalId":8746,"journal":{"name":"Behavioural Processes","volume":"234 ","pages":"Article 105310"},"PeriodicalIF":1.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145581678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chronic social defeat stress induces context avoidance in mice 慢性社会失败应激诱导小鼠情境回避。

IF 1.5 4区生物学

Behavioural Processes Pub Date : 2026-01-01 Epub Date: 2025-11-13 DOI: 10.1016/j.beproc.2025.105304

Diego Cardozo Mascarenhas , Jeimmy Marion Penagos-Gil , Nathalia Santos-Costa , Ricardo Luiz Nunes-de-Souza

{"title":"Chronic social defeat stress induces context avoidance in mice","authors":"Diego Cardozo Mascarenhas , Jeimmy Marion Penagos-Gil , Nathalia Santos-Costa , Ricardo Luiz Nunes-de-Souza","doi":"10.1016/j.beproc.2025.105304","DOIUrl":"10.1016/j.beproc.2025.105304","url":null,"abstract":"<div><div>The scrutiny of social anxiety symptoms is necessary to overcome the obstacles encountered when managing this condition. Thus, it is important to study a new behavioral repertoire elicited by chronic social defeat stress (SDS), a social stressor, applied in a place conditioned fear protocol. In this study, we sought to develop a protocol that induced context avoidance after chronic SDS. Accordingly, the mice were re-exposed to an interaction apparatus (IA) to which they had been previously habituated. Between habituation and re-exposure phases, the mice were subjected to aggressive (stressed) or non-aggressive (control) encounters performed either in the IA (Exp. 1) or in a different apparatus (named social interaction box [SIB] – Exp. 2). To behaviorally assess this protocol, the mice were recorded based on spatiotemporal measures (frequency of entry and time spent in the home cage, tunnel, and surface [where the encounter took place] of the IA) and complementary measures (e.g., frequency of stretch-attend posture [SAP], rearing, and grooming). The results showed that defeated animals spent less time in the surface of the IA during the re-exposure phase as compared to the control group (Exp.1) or to conspecifics defeated elsewhere (Exp.2). In addition, these animals also presented increased number of risk assessment behavior (higher frequency of SAP) during the re-exposure phase, in comparison with its control group and mice defeated in the SIB. This shows an unprecedented place-dependent SDS-induced context avoidance. Taken together, the present study offers a relatively simple protocol capable of eliciting context avoidance induced by chronic SDS. It accounts for a novel behavioral repertoire that might be further explored within the scope of social affective disorders.</div></div>","PeriodicalId":8746,"journal":{"name":"Behavioural Processes","volume":"234 ","pages":"Article 105304"},"PeriodicalIF":1.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145530409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The structure of courtship behavior in Drosophila males: Boundaries of plasticity 雄性果蝇求偶行为的结构：可塑性的边界。

IF 1.5 4区生物学

Behavioural Processes Pub Date : 2026-01-01 Epub Date: 2025-11-29 DOI: 10.1016/j.beproc.2025.105312

Sergei A. Fedotov , Anna A. Goncharova , Natalia G. Besedina , Larisa V. Danilenkova , Elena A. Kamysheva , Ulyana N. Solodukhina , Aleksandr A. Rubel , Julia V. Bragina

{"title":"The structure of courtship behavior in Drosophila males: Boundaries of plasticity","authors":"Sergei A. Fedotov , Anna A. Goncharova , Natalia G. Besedina , Larisa V. Danilenkova , Elena A. Kamysheva , Ulyana N. Solodukhina , Aleksandr A. Rubel , Julia V. Bragina","doi":"10.1016/j.beproc.2025.105312","DOIUrl":"10.1016/j.beproc.2025.105312","url":null,"abstract":"<div><div>The courtship ritual of Drosophila males toward females has been extensively studied to elucidate the mechanisms of behavioral plasticity in insects. Courtship is an innate, fixed sequence of behaviors that results in mating. The implementation of this instinct involves adjusting specific parameters of the courtship behaviors, such as sound production, to increase the likelihood of successful copulation. Moreover, courtship can be temporarily suppressed following an unsuccessful attempt with a previously mated female. While the neural mechanisms underlying courtship learning are well described, the interaction between male behavioral sequencing and known female-derived determinants of suppression (e.g., cVA from mated females and active rejection behaviors) remains unclear. In our study, we characterized the structure of male courtship towards virgin, mated, and immature females. We found that changes in the frequencies of transitions between courtship behaviors provide adaptive restructuring in the implementation of this ritual. Courtship towards mated females causes males to reinitiate the ritual more frequently, and we hypothesize that repeated unsuccessful initiations may ultimately result in courtship suppression. When courting immature females, males neither attempt copulation nor restart the ritual, which may explain the absence of courtship suppression with this type of female and raises the question of the evolutionary significance of courtship towards immature females.</div></div>","PeriodicalId":8746,"journal":{"name":"Behavioural Processes","volume":"234 ","pages":"Article 105312"},"PeriodicalIF":1.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145653330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Behavioural plasticity in a solitary foraging ant: Effect of experience and food distribution 单独觅食蚂蚁的行为可塑性：经验和食物分布的影响。

IF 1.5 4区生物学

Behavioural Processes Pub Date : 2026-01-01 Epub Date: 2025-11-14 DOI: 10.1016/j.beproc.2025.105305

Maria Eduarda Lima Vieira , Stéphane Chameron , Heiko G. Rödel , Arrilton Araújo , Nicolas Châline

{"title":"Behavioural plasticity in a solitary foraging ant: Effect of experience and food distribution","authors":"Maria Eduarda Lima Vieira , Stéphane Chameron , Heiko G. Rödel , Arrilton Araújo , Nicolas Châline","doi":"10.1016/j.beproc.2025.105305","DOIUrl":"10.1016/j.beproc.2025.105305","url":null,"abstract":"<div><div>To deal with the unpredictability of available food resources, animals must adjust their behaviour to optimise foraging efficiency. Various mechanisms influence food acquisition behaviour, and our knowledge of their combined impact on foraging efficiency often remains limited. In this study, we conducted laboratory experiments with seven colonies of the solitary foraging ant <em>Dinoponera quadriceps</em>. We observed the behaviour of foragers in an experimental set-up where ten food items were provided either in aggregated or dispersed distributions. Individual participation was voluntary (i.e., ants were free to enter or not the experimental arena), allowing us to assess internal processes like motivation for foraging. We recorded, across repeated trials, foraging activity and exploratory behaviour as proxies for foraging motivation, and success as a measure of efficiency. We found that foragers were highly efficient (retrieving food in 77.38 % of the trips), especially when exploiting aggregated and abundant food resources. Individual foraging success increased with higher exploration, which was more intense in environments displaying larger numbers of dispersed prey items. Individual activity was higher with more experience and in smaller colonies with fewer foragers. On the other hand, success declined when more conspecific foragers were present. Furthermore, foragers and colonies exhibited low but consistent differences in levels of activity, exploration, and success rates. These findings provide a comprehensive view of how different factors combine to give rise to complex behaviours such as foraging. Additionally, they emphasise the importance of individual traits for effective task performance within social groups, an understudied topic.</div></div>","PeriodicalId":8746,"journal":{"name":"Behavioural Processes","volume":"234 ","pages":"Article 105305"},"PeriodicalIF":1.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145534468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Resurgence of negatively reinforced behavior in rats 大鼠负强化行为的复苏。

IF 1.5 4区生物学

Behavioural Processes Pub Date : 2025-12-01 Epub Date: 2025-11-11 DOI: 10.1016/j.beproc.2025.105302

Joshua B. Hiltz , Timothy A. Shahan

{"title":"Resurgence of negatively reinforced behavior in rats","authors":"Joshua B. Hiltz , Timothy A. Shahan","doi":"10.1016/j.beproc.2025.105302","DOIUrl":"10.1016/j.beproc.2025.105302","url":null,"abstract":"<div><div>Resurgence is an increase in a previously reinforced and subsequently extinguished target behavior following a worsening of conditions for a more recently reinforced alternative behavior. Despite extensive research on resurgence, there have been no demonstrations of the phenomenon with a negatively reinforced behavior in an animal model. This gap is notable because avoidance and escape behaviors are among the most prevalent functions of severe problem behavior in clinical settings. The present study provided the first demonstration of resurgence of a negatively reinforced behavior, specifically resurgence of avoidance, in an animal model. In Phase 1, target-lever presses of rats could avoid signaled shock. In Phase 2, the target lever was placed on extinction and signaled shock could then be avoided via an alternative lever. In Phase 3, both levers were placed on extinction while the warning signal and shock continued to occur. Resurgence was observed in all subjects with several rats exhibiting a persistent, robust effect. These findings establish an experimental animal model of resurgence of negatively reinforced behavior, extend basic research on relapse beyond positive reinforcement, and provide a foundation for evaluating strategies to mitigate resurgence of avoidance and escape in clinically relevant contexts.</div></div>","PeriodicalId":8746,"journal":{"name":"Behavioural Processes","volume":"233 ","pages":"Article 105302"},"PeriodicalIF":1.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145511599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Time estimation variability in delay discounting: Model comparison and considerations 延迟折扣中的时间估计可变性：模型比较和考虑。

IF 1.5 4区生物学

Behavioural Processes Pub Date : 2025-12-01 Epub Date: 2025-10-09 DOI: 10.1016/j.beproc.2025.105281

Brett W. Gelino , Madison E. Graham , Justin C. Strickland , Matthew W. Johnson , Derek D. Reed

{"title":"Time estimation variability in delay discounting: Model comparison and considerations","authors":"Brett W. Gelino , Madison E. Graham , Justin C. Strickland , Matthew W. Johnson , Derek D. Reed","doi":"10.1016/j.beproc.2025.105281","DOIUrl":"10.1016/j.beproc.2025.105281","url":null,"abstract":"<div><div>Delay discounting describes an organism’s sensitivity to delayed consequences. The advent of hyperboloid discounting models introduced the <em>s</em> discounting parameter, a fitted metric that reduces residual variance when working with human subjects. Mathematically, discounting <em>s</em> allows for a nonlinear relation between consequence (<em>A</em>) and delay (<em>D</em>) and could be conceptually accounted for as a psychophysical scalar that describes subjective differences in the rate of time passage. This study offers a proof-of-concept examination of hyperboloid <em>s</em> in relation to participant time-based experiences. A crowdsourced sample of adults (<em>N</em> = 211) completed tasks measuring time estimation (i.e., reporting how much time passed during a distractor task) and temporal distance estimation (i.e., reporting how temporally distant a delay feels). Participants generally underestimated durations in the time estimation task, where income and completion of a preceding day-framed discounting task (versus date-framed), but not Myerson and Green’s <em>s</em> (b = −0.19), and modestly Rachlin’s <em>s</em> (b = 0.82), exhibited a statistically significant relation with time estimation accuracy. Similarly, participant age and delay framing, but not hyperboloid <em>s</em>, exhibited a statistically significant relation with temporal distance estimation discrepancies. Broadly, data suggest that <em>s</em> may not be accounting for differences in time estimation as measured in this sample. At most, the modest effect observed for Rachlin’s <em>s</em> suggests limited conceptual value, meriting further consideration of the metric’s account of subject-level differences.</div></div>","PeriodicalId":8746,"journal":{"name":"Behavioural Processes","volume":"233 ","pages":"Article 105281"},"PeriodicalIF":1.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145257108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Species-specific behavioural responses to peripheral arginine vasopressin in two African striped mice (genus Rhabdomys) 两种非洲条纹小鼠（横纹肌属）对外周精氨酸抗利尿激素的物种特异性行为反应。

IF 1.5 4区生物学

Behavioural Processes Pub Date : 2025-12-01 Epub Date: 2025-10-15 DOI: 10.1016/j.beproc.2025.105284

Candice Nikita Neves , Tasmin Lee Rymer , Kirsty-Jane Hartman , Neville Pillay

{"title":"Species-specific behavioural responses to peripheral arginine vasopressin in two African striped mice (genus Rhabdomys)","authors":"Candice Nikita Neves , Tasmin Lee Rymer , Kirsty-Jane Hartman , Neville Pillay","doi":"10.1016/j.beproc.2025.105284","DOIUrl":"10.1016/j.beproc.2025.105284","url":null,"abstract":"<div><div>Peripheral arginine vasopressin (AVP) administration modulates social behaviour in several mammalian species, although its effects are inconsistent and can be species- and context-specific. We investigated whether peripheral AVP modulates behavioural responses in females of two closely related African striped mouse species that differ in social organisation: group-living <em>Rhabdomys pumilio</em> and solitary-living <em>R. dilectus dilectus</em>. Using a three-chamber sociability and social novelty test, we investigated the behavioural responses of focal females, following saline, low-dose or high-dose subcutaneous AVP injections, to either familiar or novel stimulus females. We recorded the duration of time spent in the chambers of each stimulus female, the number of approaches, and the duration of affiliative and aggressive behaviours. Under high AVP, both species spent more time with, and made more approaches to, stimulus females, suggesting enhanced activity or investigatory behaviour. Specifically, under high AVP, <em>R. d. dilectus</em> showed increased affiliative behaviour toward familiar females, while <em>R. pumilio</em> generally showed greater aggression overall and more affiliative behaviour towards the novel female under high AVP. Our findings suggest that peripheral AVP can modulate certain aspects of social behaviour in <em>Rhabdomys</em>, although the underlying mechanisms (social, arousal-based or locomotor) remain untested. These results highlight the importance of considering species differences and peripheral neuropeptide effects when evaluating the associations between AVP expression and behaviour.</div></div>","PeriodicalId":8746,"journal":{"name":"Behavioural Processes","volume":"233 ","pages":"Article 105284"},"PeriodicalIF":1.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145312156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nuances in fish combat: Exploring male and female differences in the agonistic behavior of an Amazonian cichlid 鱼类战斗中的细微差别：探索亚马逊慈鲷的雄性和雌性斗争行为的差异。

IF 1.5 4区生物学

Behavioural Processes Pub Date : 2025-12-01 Epub Date: 2025-11-06 DOI: 10.1016/j.beproc.2025.105299

Carolina G. Sarmento , Thaís B. Carvalho , Helder L. de Queiroz

{"title":"Nuances in fish combat: Exploring male and female differences in the agonistic behavior of an Amazonian cichlid","authors":"Carolina G. Sarmento , Thaís B. Carvalho , Helder L. de Queiroz","doi":"10.1016/j.beproc.2025.105299","DOIUrl":"10.1016/j.beproc.2025.105299","url":null,"abstract":"<div><div>Agonistic interactions are present in the competition for limited resources in virtually all groups of social animals. However, little is known about the ways males and females dispute resources or defend or care for offspring. Here, we investigated how the contests between adults of the Amazonian flag cichlid (<em>Mesonauta insignis</em> (Heckel, 1840)) take place in intra- and intersex encounters in a neutral environment, and whether males and females are able to fight equally for the same resources. We captured individuals in the wild and staged size-matched encounters under controlled conditions. Our analysis revealed distinct contest phases, with statistical differences in aggressive unit frequency and time spent specifically between phase 1 and phase 2, corroborating an escalation dynamic. Half of those contests showed distinct phases, and a clear escalation in aggression and in injury risk. Although both sexes expressed the same levels of aggression and the same cost of contest in their engagements, other sexual differences in their aggressive interaction strategy were detected. Males proved to be more cautious when engaged in same-sex contests. Contest costs increased with body size of females in same-sex and in intersex encounters. We discuss the implications of our results in supporting the idea that both sexes of Amazonian flag cichlids engage in agonistic encounters to achieve similar goals, but they show sex-specific aspects when doing so. This study provides valuable insights into the ecological and behavioral drivers, such as distinct escalation dynamics and sex-specific competitive strategies, in cichlids.</div></div>","PeriodicalId":8746,"journal":{"name":"Behavioural Processes","volume":"233 ","pages":"Article 105299"},"PeriodicalIF":1.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145476678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Repellent effect of selected essential oils against the wolf spider Pardosa hortensis (Araneae: Lycosidae) 所选精油对狼蛛的驱避作用。

IF 1.5 4区生物学

Behavioural Processes Pub Date : 2025-12-01 Epub Date: 2025-10-14 DOI: 10.1016/j.beproc.2025.105283

Marek Chajduk , Marek Gołębiowski , Marzena Stańska , Christophe Lucas

{"title":"Repellent effect of selected essential oils against the wolf spider Pardosa hortensis (Araneae: Lycosidae)","authors":"Marek Chajduk , Marek Gołębiowski , Marzena Stańska , Christophe Lucas","doi":"10.1016/j.beproc.2025.105283","DOIUrl":"10.1016/j.beproc.2025.105283","url":null,"abstract":"<div><div>Spiders play a vital role in ecosystem balance, contributing to insect population control and biodiversity maintenance. However, their presence can cause fear and anxiety in humans, particularly those affected with arachnophobia. As spiders increasingly appear in human environments due to global climatic changes, even non synanthropic species, there is a growing need for effective and natural repellents - not only to reduce human discomfort but also to protect spiders by encouraging them to avoid urban areas and reducing unnecessary fatalities. In this study, we investigated the potential repellent properties of ten essential oils against female wolf spiders <em>Pardosa hortensis</em> (Araneae: Lycosidae), a very common grass species from the second-largest spider genus in the world that may occasionally venture into human surroundings. Through chemical analysis and binary choice behavioral tests, we identified five oils - catnip, cedarwood, cinnamon, citronella, and clove - that significantly deterred spider activity. Chemical constituents such as eugenol, β-caryophyllene, and geraniol likely contribute to these repellent effects. While further research is needed to validate these findings across diverse spider species, our study highlights the potential of essential oils and essential oil yielding plants as natural spider repellents, either at the entrances of houses or as natural garden defenses with specific plants. Altogether, it gives promise for arachnid management strategies and for mitigating conflicts between humans and spiders.</div></div>","PeriodicalId":8746,"journal":{"name":"Behavioural Processes","volume":"233 ","pages":"Article 105283"},"PeriodicalIF":1.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145306825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rats show qualitative sex differences in interaction preferences among unfamiliar same-sex conspecifics 大鼠在不熟悉的同性间表现出质的性别差异。

IF 1.5 4区生物学

Behavioural Processes Pub Date : 2025-12-01 Epub Date: 2025-10-27 DOI: 10.1016/j.beproc.2025.105298

Yuki Ippongi, Yasushi Kiyokawa, Yukari Takeuchi

{"title":"Rats show qualitative sex differences in interaction preferences among unfamiliar same-sex conspecifics","authors":"Yuki Ippongi, Yasushi Kiyokawa, Yukari Takeuchi","doi":"10.1016/j.beproc.2025.105298","DOIUrl":"10.1016/j.beproc.2025.105298","url":null,"abstract":"<div><div>In social animals, behaviors toward conspecifics are influenced by group information of other individuals. One component of group information in rats is their strains. Our previous study suggests that rats can change their social interactions depending on the strain of unfamiliar same-sex individuals. In a 60-min preference test using a three-chamber apparatus, we observed that the male Wistar subjects interacted more with Wistar and Sprague-Dawley (SD) rats than with Fischer344 (F344) rats. In contrast, the subjects showed similar levels of interaction with Wistar and SD rats. Examination of the genealogy of these strains revealed that the SD strain was established from the Wistar strain, whereas the F344 strain was established independently from the Wistar strain. Therefore, male Wistar rats appear to prefer interacting with unfamiliar rats with greater genetic similarity. Here, we assessed whether female rats also prefer to interact with strains with greater genetic similarity. In Experiment 1, unlike the male subjects, the female Wistar subjects interacted more with F344 rats than with Wistar rats. In Experiment 2, whereas the female Wistar subjects interacted more with SD rats than with Wistar rats, they showed similar levels of interaction with SD and F344 rats. Experiment 3 confirmed that these results were not due to an aversion to Wistar rats. Based on these results, we conclude that rats exhibit qualitative sex differences in their interactions with unfamiliar same-sex individuals. Whereas male rats prefer to interact with strains with greater genetic similarity, female rats prioritize strains with greater novelty.</div></div>","PeriodicalId":8746,"journal":{"name":"Behavioural Processes","volume":"233 ","pages":"Article 105298"},"PeriodicalIF":1.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145399598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0