acta ethologica最新文献_第4页

The hornbill and the pitcher: a southern ground hornbill (Bucorvus leadbeateri) learns to solve the Aesop’s Fable task 犀鸟和水罐：一只南方地犀鸟（Bucorvus leadbeateri）学习解决伊索寓言任务

IF 1.3 4区生物学

acta ethologica Pub Date : 2026-02-25 DOI: 10.1007/s10211-026-00481-7

Jared Edge, Jennifer Vonk

{"title":"The hornbill and the pitcher: a southern ground hornbill (Bucorvus leadbeateri) learns to solve the Aesop’s Fable task","authors":"Jared Edge, Jennifer Vonk","doi":"10.1007/s10211-026-00481-7","DOIUrl":"10.1007/s10211-026-00481-7","url":null,"abstract":"<div>\u0000 \u0000 <p>Applying widely used tasks to test the problem solving of species with distinct ecological and social structures facilitates a comprehensive understanding of selective pressures for cognitive traits, such as insight, innovation, and causal reasoning. A southern ground hornbill (<i>Bucorvus leadbeateri</i>) was presented with a version of the Aesop’s Fable task to extend explorations of problem solving in this paradigm to a species that has heretofore been understudied. After learning to perform the task, our subject was presented with a version in which heavy stones were more efficient than light stones in displacing a water column to bring food rewards within reach. Although she successfully retrieved rewards more quickly across sessions and learned to select, lift, and drop stones into the tube, she did not preferentially select heavy stones to complete the task, performing similarly to previously tested species. Despite the single subject not demonstrating any causal understanding of the property of weight in this task, the results demonstrate that hornbills will engage with novel object manipulation tasks and do not preclude the possibility that hornbills could evidence such understanding. Gaining a better understanding of the cognitive abilities of southern ground hornbills may ultimately contribute to improving husbandry and conservation efforts in this vulnerable species.</p>\u0000 </div>","PeriodicalId":6879,"journal":{"name":"acta ethologica","volume":"29 2","pages":""},"PeriodicalIF":1.3,"publicationDate":"2026-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147342009","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

Too young to be bold: Lack of personality in juvenile goby 太年轻而不大胆：幼年虾虎鱼缺乏个性

IF 1.3 4区生物学

acta ethologica Pub Date : 2026-02-25 DOI: 10.1007/s10211-026-00482-6

S. Martins-Cardoso, P. Vicente, I. Fournon-Berodia, I. Polo, A. M. Faria

{"title":"Too young to be bold: Lack of personality in juvenile goby","authors":"S. Martins-Cardoso, P. Vicente, I. Fournon-Berodia, I. Polo, A. M. Faria","doi":"10.1007/s10211-026-00482-6","DOIUrl":"10.1007/s10211-026-00482-6","url":null,"abstract":"<div><p>Animal personality, defined as consistent individual differences in behaviour across time and contexts, can significantly influence fitness and survival. However, the expression and stability of personality traits across ontogeny remain poorly understood, particularly in species undergoing complex life history transitions. Here, we examined behavioural consistency in juvenile two-spotted goby (<i>Pomatoschistus flavescens</i>) during the critical shift from a pelagic to a benthic lifestyle. Using two standardised assays—the emergence test (boldness) and open field test (exploration)—we assessed behavioural repeatability across repeated trials in a laboratory setting. Across most behavioural measures, we found low repeatability, with within-individual variance exceeding among-individual variance. Correlation analyses revealed consistent behavioural responses within contexts (e.g., among boldness measures), but no significant cross-context correlations, indicating that boldness and exploration do not form a behavioural syndrome in juveniles. These results contrast with findings in adult gobies and suggest that stable personality traits may not be present at this developmental stage. We propose that the observed behavioural flexibility may be adaptive, allowing juveniles to respond rapidly to the variable environmental and social conditions encountered during post-settlement. This ontogenetic plasticity may confer survival advantages in dynamic reef environments. Our findings underscore the importance of incorporating life stage and developmental context when investigating animal personality and behavioural organisation.</p></div>","PeriodicalId":6879,"journal":{"name":"acta ethologica","volume":"29 2","pages":""},"PeriodicalIF":1.3,"publicationDate":"2026-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10211-026-00482-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147342007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Distress calls of two species of Pithecopus (Anura, hylidae) in Northeastern Brazil 巴西东北部两种棘猴（无尾目，棘猴科）的求救叫声

IF 1.3 4区生物学

acta ethologica Pub Date : 2026-02-16 DOI: 10.1007/s10211-026-00479-1

João Victor Cunegundes de Siqueira, Arthur Felipe Ferreira de Freitas, Daniel Figueiredo de Ramalho, Adsson Rodrigues de Santana, Geraldo Jorge Barbosa de Moura

{"title":"Distress calls of two species of Pithecopus (Anura, hylidae) in Northeastern Brazil","authors":"João Victor Cunegundes de Siqueira, Arthur Felipe Ferreira de Freitas, Daniel Figueiredo de Ramalho, Adsson Rodrigues de Santana, Geraldo Jorge Barbosa de Moura","doi":"10.1007/s10211-026-00479-1","DOIUrl":"10.1007/s10211-026-00479-1","url":null,"abstract":"<div>\u0000 \u0000 <p>Bioacoustics is essential to understand patterns of vocalization in anuran amphibians, including their advertisement, aggressive, and distress calls. Aggressive and distress calls occur when the individuals are threatened and present a strong phylogenetic signal, being potential taxonomic markers, especially for cryptic species. The genus Pithecopus includes 12 species of arboreal frogs, including the cryptic species <i>P. nordestinus</i> and <i>P. gonzagai</i>, two sympatric species that can be differentiated based on genetic, morphological, and acoustic features. This study describes and compares the distress calls of <i>P. gonzagai</i> and <i>P. nordestinus</i>, analyzing acoustic differences and the relationship with their advertisement call. We conducted field work at the Tapacurá Ecological Station, Pernambuco, Brazil, where the distress calls of three males of <i>P. gonzagai</i> were recorded. We compared with data on <i>P. nordestinus</i>, obtained from the Fonoteca Netotropical Jacques Vielliard. The results show that distress calls are longer, with higher frequency, and are more complex than advertisement calls, for both species. Moreover, there is a marked contrast for both calls between the two species, especially when considering distress call duration, with <i>P. nordestinus</i> emitting longer calls. Distress calls are still an understudied type of vocalization, despite being observed in many species. These results suggest that both ecological and evolutionary factors may have a role in shaping the vocalization of anurans, reinforcing the importance of bioacoustics for the systematics and conservation of Neotropical amphibians.</p>\u0000 </div>","PeriodicalId":6879,"journal":{"name":"acta ethologica","volume":"29 2","pages":""},"PeriodicalIF":1.3,"publicationDate":"2026-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10211-026-00479-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147339662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Record of Stiff-legged Defensive Behavior in Rhinella achavali (Anura: Bufonidae) 阿查瓦利犀牛的硬腿防御行为记录（无尾目：蟾蜍科）

IF 1.3 4区生物学

acta ethologica Pub Date : 2026-01-13 DOI: 10.1007/s10211-026-00478-2

Michele Esperança, Camila Fernanda Moser, Gustavo Kasper Cubas, Samuel Ferreira Gohlke, Marcelo Duarte Freire, Márcio Borges-Martins

引用次数: 0

Early-life social instability affects aggression, but not response inhibition, in chickens 早期社会不稳定会影响鸡的攻击性，但不会影响反应抑制

IF 1.3 4区生物学

acta ethologica Pub Date : 2026-01-13 DOI: 10.1007/s10211-025-00477-9

Kathryn Willcox, Alizée Vernouillet, Birgit Szabo, An Martel, Luc Lens, Frederick Verbruggen

{"title":"Early-life social instability affects aggression, but not response inhibition, in chickens","authors":"Kathryn Willcox, Alizée Vernouillet, Birgit Szabo, An Martel, Luc Lens, Frederick Verbruggen","doi":"10.1007/s10211-025-00477-9","DOIUrl":"10.1007/s10211-025-00477-9","url":null,"abstract":"<div><p>Living in complex social environments presents behavioural and cognitive challenges. A key challenge is the regulation of aggression, which may be facilitated by response inhibition, the ability to suppress inappropriate actions. In more complex social environments, greater variability in interactions may increase demands for aggression regulation, promoting the development of response inhibition. However, social instability, a form of complexity characterised by frequent changes in group composition, can elevate aggression and may instead impair inhibition. To test these competing predictions, we raised 144 chickens (<i>Gallus gallus domesticus</i>) in either stable or unstable social groups for five weeks. We observed the aggression within their enclosures following the final manipulation and assessed their response inhibition using a thwarting task and a cylinder task. Unstable groups initially showed more aggression than stable groups following regrouping, but this declined rapidly to the same lower level of aggression as the stable groups. Contrary to our predictions, there were no differences between birds raised in stable and unstable groups for any measure of response inhibition, and individual variation in aggression did not correlate with inhibitory performance. These findings suggest that social instability influences aggression but does not affect the development of response inhibition in chickens, highlighting the potential context- and species-specific nature of social effects on cognition.</p></div>","PeriodicalId":6879,"journal":{"name":"acta ethologica","volume":"29 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2026-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145982521","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

Origami by the Japanese giant flying squirrels: how to fold a tree leaf efficiently before eating it 日本巨型鼯鼠的折纸术：如何在吃树叶之前有效地折叠树叶

IF 1.3 4区生物学

acta ethologica Pub Date : 2025-12-26 DOI: 10.1007/s10211-025-00476-w

Mutsumi Ito, Makoto Uenishi, Reiko Okano, Fumio Hayashi

引用次数: 0

First detailed description of male-male combat in the genus Dopasia Gray, 1875 (Reptilia: Anguidae) 1875年首次详细描述了Dopasia Gray属（爬行纲：鳗鲡科）中雄性之间的搏斗。

IF 1.3 4区生物学

acta ethologica Pub Date : 2025-12-26 DOI: 10.1007/s10211-025-00475-x

Martina Lawson, Yu-Hsiang Su, Si-Min Lin, Daniel Jablonski

引用次数: 0

Simultaneous consumption of Liolaemus lizards by the raptor Geranoaetus polyosoma in south-central patagonia 巴塔哥尼亚中南部的多角猛禽同时吞食Liolaemus蜥蜴

IF 1.3 4区生物学

acta ethologica Pub Date : 2025-12-01 DOI: 10.1007/s10211-025-00474-y

Candela Victorel, Martín C. Castillo, Mauro I. Bonavita, Mauro N. Tammone, Laura M. Casalins, Laura Mangini Mas, Valeria S. Ojeda, Débora L. Moreno Azócar, Marcelo F. Bonino, Félix B. Cruz

{"title":"Simultaneous consumption of Liolaemus lizards by the raptor Geranoaetus polyosoma in south-central patagonia","authors":"Candela Victorel, Martín C. Castillo, Mauro I. Bonavita, Mauro N. Tammone, Laura M. Casalins, Laura Mangini Mas, Valeria S. Ojeda, Débora L. Moreno Azócar, Marcelo F. Bonino, Félix B. Cruz","doi":"10.1007/s10211-025-00474-y","DOIUrl":"10.1007/s10211-025-00474-y","url":null,"abstract":"<div><p>Interactions between predators and prey have direct effects on the fitness of both parties. Particularly, lizards are predated by a wide variety of taxa, where birds have been proposed to exert a minor predation pressure than other vertebrates, like squamates. In general, cases among the literature report predation events where a single individual has been consumed. Here, we report the finding of seven lizards in the stomach content of a variable hawk (<i>Geranoaetus polyosoma</i>) road-killed in Arid Patagonia. The remains found included three adult individuals and two juveniles of <i>Liolaemus morandae</i>, and one adult of <i>L. kingii</i>, along with an additional tail. All remains showed a similar degree of digestion, which may indicate that lizards were consumed within a short timeframe. This novel finding represents the first confirmed evidence of a raptor preying simultaneously upon multiple lizard species and highlights the potential importance of lizards as dietary items of the variable hawk during the warm season in arid environments of Patagonia. Additionally, it is the first confirmed record of predation upon the <i>Liolaemus lineomaculatus</i> section, a group restricted to Patagonia. This predation event, including several individuals, suggests that predation pressure exerted by birds upon lizards may be underestimated, particularly in regions where other predators are scarce. We provide new information with implications for both lizard population dynamics and raptor foraging ecology, enhancing our knowledge on predator-prey interactions in Arid Patagonia.</p></div>","PeriodicalId":6879,"journal":{"name":"acta ethologica","volume":"29 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145675474","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

Play behaviour in urban-dwelling adult yellow mongooses (Cynictis penicillata) 居住在城市的成年黄猫鼬的游戏行为

IF 1.3 4区生物学

acta ethologica Pub Date : 2025-11-29 DOI: 10.1007/s10211-025-00473-z

Daniela de Abreu, Neville Pillay

{"title":"Play behaviour in urban-dwelling adult yellow mongooses (Cynictis penicillata)","authors":"Daniela de Abreu, Neville Pillay","doi":"10.1007/s10211-025-00473-z","DOIUrl":"10.1007/s10211-025-00473-z","url":null,"abstract":"<div>\u0000 \u0000 <p>Play behaviour in adult animals is often overlooked, particularly in free-ranging populations where it occurs less frequently than in juveniles. We investigated play behaviour and its associated behavioural sequences in urban-dwelling colonies of adult yellow mongooses (<i>Cynictis penicillata</i>), a species in which play has not previously been described. Using direct observations and continuous video footage, we quantified the occurrence and types of play, identified accompanying play signals and analysed the behaviours preceding and following play bouts. Play was consistently present across colonies, with social play being more frequent than either locomotor or object play. Play sessions typically began with identifiable play invitations, including play bows, which were often followed by nape bites. Behavioural sequences were analysed to describe the typical flow of actions in play events and revealed consistent patterns within and across colonies. Vigilance behaviour was more commonly observed following play bouts, suggesting a potential shift in attentional state. Our study provides one of the first detailed accounts of play in this species and contributes to a growing body of descriptive work on adult play in carnivores. These findings expand our understanding of the social behaviour of yellow mongooses and offer a baseline for future comparative studies.</p>\u0000 </div>","PeriodicalId":6879,"journal":{"name":"acta ethologica","volume":"29 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145618789","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

Role of cuticular hydrocarbons and social cues in mate recognition and copulatory behavior of ladybird beetle, Cheilomenes sexmaculata (Fabricius) 表皮碳氢化合物和社会线索在瓢虫配偶识别和交配行为中的作用

IF 1.3 4区生物学

acta ethologica Pub Date : 2025-09-05 DOI: 10.1007/s10211-025-00472-0

Priya Yadav, Geetanjali Mishra, Tripti Yadav, Omkar

{"title":"Role of cuticular hydrocarbons and social cues in mate recognition and copulatory behavior of ladybird beetle, Cheilomenes sexmaculata (Fabricius)","authors":"Priya Yadav, Geetanjali Mishra, Tripti Yadav,  Omkar","doi":"10.1007/s10211-025-00472-0","DOIUrl":"10.1007/s10211-025-00472-0","url":null,"abstract":"<div><p>The efficiency of insects in finding a suitable mate is crucial for their reproductive success. Chemical communication is primarily used to search for and recognize a potential mate. At close range, cuticular hydrocarbons (CHCs) are known to serve as mate recognition cue. In this study, we assessed the role of CHCs and social cues in mate and sex recognition through behavioral assays in ladybird beetle, <i>Cheilomenes sexmaculata</i>. To examine the role of CHCs in sex and mate recognition focal males were exposed to alive males and females and CHCs washed females (immersed in chloroform for 5 min, 30 min and 24 h) respectively. For social cues, males were made to encounter alive as well as dead males and females. Their copulation attempts and mating parameters (time to commence mating and copulation duration) were recorded. We also assessed whether males only mounted the dead females or copulated with them (i.e., transferred ejaculate). Our results revealed that focal males showed higher copulation attempts with alive individuals, regardless of sex. However, they attempted copulation with dead females significantly more often than with dead males. Washing of CHCs significantly influenced copulation attempts, with unwashed beetles showing a 100% attempt rate, followed by those immersed in chloroform for varying durations. Males initiated mating sooner and engaged in longer copulation with alive females compared to dead ones. Although, males mounted and copulated with dead females, no difference in sperm transfer was observed compared to alive females. Our study demonstrated that CHCs along with social cues (such as movement), play a pivotal role in eliciting male copulatory behavior.</p></div>","PeriodicalId":6879,"journal":{"name":"acta ethologica","volume":"28 3","pages":"171 - 179"},"PeriodicalIF":1.3,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145110480","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