Animal Cognition最新文献_第5页

Group size affects spontaneous quantity discrimination performance in wild Western Australian magpies (Gymnorhina tibicen dorsalis) 群体大小对野生西澳大利亚喜鹊自发数量辨别能力的影响

IF 1.9 2区生物学

Animal Cognition Pub Date : 2025-05-26 DOI: 10.1007/s10071-025-01963-0

Holly Hunter, Grace Blackburn, Benjamin J. Ashton, Amanda R. Ridley

{"title":"Group size affects spontaneous quantity discrimination performance in wild Western Australian magpies (Gymnorhina tibicen dorsalis)","authors":"Holly Hunter, Grace Blackburn, Benjamin J. Ashton, Amanda R. Ridley","doi":"10.1007/s10071-025-01963-0","DOIUrl":"10.1007/s10071-025-01963-0","url":null,"abstract":"<div><p>Animals may benefit from the ability to discriminate between quantities in their environment; for example, when choosing between foraging patches differing in food availability or assessing the size of rival groups. Numerous studies utilising spontaneous quantity discrimination tasks have found that a wide range of species possess the ability to discriminate between quantities, with large interspecific differences being found in these capabilities. However, the <i>causes</i> of variation in quantity discrimination have received less attention, particularly when considering intraspecific variation. Here, we use a spontaneous quantity discrimination task to (i) investigate if Western Australian magpies possess quantity discrimination abilities, and (ii) determine the factors that underlie individual variation in this ability. We found that magpies were able to discriminate between two discrete quantities of a food reward and chose the larger quantity of food more often than expected by chance, with their accuracy increasing as the difference between the two quantities of food items increased (i.e. as the ratio decreased). Individual performance on the assay was significantly affected by group size, with individuals from smaller groups choosing the larger quantity of food more often than individuals from larger groups when presented with the 2 vs. 5 combination. This group size difference may arise because individuals from smaller groups benefit more from enhanced quantity discrimination abilities compared to individuals from larger groups due to the greater risk of competition and loss of resources from intergroup conflict with larger groups. Our study is the first to investigate and identify group size as a source of intraspecific variation in spontaneous quantity discrimination abilities and highlights the importance of considering the causes of individual variation in cognitive performance.</p></div>","PeriodicalId":7879,"journal":{"name":"Animal Cognition","volume":"28 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10071-025-01963-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Differential response by tandem leaders and followers to landmark-rich and landmark-poor environments 串联领导和追随者对地标丰富和地标贫乏环境的差异反应

IF 1.9 2区生物学

Animal Cognition Pub Date : 2025-05-19 DOI: 10.1007/s10071-025-01958-x

Norasmah Basari, Ana B. Sendova-Franks, Alan Worley, Nigel R. Franks

{"title":"Differential response by tandem leaders and followers to landmark-rich and landmark-poor environments","authors":"Norasmah Basari, Ana B. Sendova-Franks, Alan Worley, Nigel R. Franks","doi":"10.1007/s10071-025-01958-x","DOIUrl":"10.1007/s10071-025-01958-x","url":null,"abstract":"<div><p>When animals use the same route repeatedly, they have the opportunity to update information that might help them to navigate more quickly and more accurately. Here we analyse ants involved in tandem running, in which the leader has evaluated a new nest and decided to recruit to it while the follower has chosen to be led and shown the route. We used a motorised gantry equipped with a camera to track the movements of tandem members on their tandem and return trips in a landmark-rich and a landmark-poor environment. Although the amount of visual navigational information did not affect the movements of leaders or followers on their tandem trip, the paths of followers were significantly more tortuous and their speeds significantly slower than those of leaders on their return trips in the landmark-poor environment. By contrast, there were no such differences between the followers and leaders on their return trips in the landmark-rich environment even though the return paths of followers in the landmark-rich environment were significantly more tortuous than that of leaders in the landmark-poor environment. Indeed, in the landmark-rich environment, the majority of the leaders’ return paths had loops while most were straight in the landmark-poor environment. Thus, the availability of more information when many landmarks are present may induce tandem leaders to make the loops, typically associated with the paths of tandem followers. This suggests knowledgeable individuals slow down to update navigational information and has implications for the formation of leader oligarchies in tandem running.</p></div>","PeriodicalId":7879,"journal":{"name":"Animal Cognition","volume":"28 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10071-025-01958-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Age differences in bonobo (Pan paniscus) multimodal communication signals 倭黑猩猩（Pan paniscus）多模态通信信号的年龄差异

IF 1.9 2区生物学

Animal Cognition Pub Date : 2025-05-19 DOI: 10.1007/s10071-025-01961-2

Elizabeth Beachem, Caleb Ghione, Halena Soto, Lisette van den Berg, Craig Stanford

{"title":"Age differences in bonobo (Pan paniscus) multimodal communication signals","authors":"Elizabeth Beachem, Caleb Ghione, Halena Soto, Lisette van den Berg, Craig Stanford","doi":"10.1007/s10071-025-01961-2","DOIUrl":"10.1007/s10071-025-01961-2","url":null,"abstract":"<div><p>While spoken language is unique to humans, many features of human communication are shared with great apes, including the use of signals in multiple modalities such as vocalizations, gestures, and facial expressions. Communication signals can be unimodal (involving a single modality) or multimodal (combining multiple modalities simultaneously). Here, we examined age-related differences in bonobo (<i>Pan paniscus)</i> unimodal and multimodal communication signals. We assessed all vocalizations, gestures, facial expressions, and multimodal combinations produced by captive bonobos across a variety of behavioral contexts. All occurrences of communication signals were collected via focal observations from 12 individuals ranging from 6 months to 44 years of age. All individuals produced multimodal communication signals but all bonobos, regardless of age, produced multimodal signals at lower frequencies than unimodal signals. Age had a significant effect with younger bonobos producing more multimodal signals than older individuals (<i>p</i> < 0.001). The infant and juveniles produced the most multimodal signals and there was an approximately 6% increase in unimodal signals per age year increase. These findings indicate a developmental shift toward unimodal signals as bonobos age. Behavioral context was predictive of signal type usage with an increase of multimodal signals in agonistic (<i>p</i> < 0.001), play (<i>p</i> < 0.001), and sexual contexts (<i>p</i> = 0.001). This indicates that context is important for bonobo modality with multimodal signaling occurring more in “high-risk/high-reward” contexts where proper signal comprehension is vital. This study represents an overview of multimodal communication across bonobo life stages, offering further insights into primate communication patterns and developmental trajectories.</p></div>","PeriodicalId":7879,"journal":{"name":"Animal Cognition","volume":"28 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10071-025-01961-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Visual numerical cognition in pigeons: conformity to the Weber–Fechner law 鸽子的视觉数字认知：符合韦伯-费希纳定律

IF 1.9 2区生物学

Animal Cognition Pub Date : 2025-05-19 DOI: 10.1007/s10071-025-01957-y

Peng Wu, Juncai Zhu, Qingzhi He, Zhizhong Wang, Li Shi

{"title":"Visual numerical cognition in pigeons: conformity to the Weber–Fechner law","authors":"Peng Wu, Juncai Zhu, Qingzhi He, Zhizhong Wang, Li Shi","doi":"10.1007/s10071-025-01957-y","DOIUrl":"10.1007/s10071-025-01957-y","url":null,"abstract":"<div><p>As representatives of a basal bird lineage, pigeons have exhibited remarkable visual numerical cognition, comparable even to that of monkeys. Nevertheless, whether visual numerical cognition in pigeons conforms to the Weber–Fechner law remains unknown. To address this, we designed a fully automated apparatus tailored for pigeons and used it to train them to perform a delayed match-to-numerosity task. The results showed that on a linear scale, pigeons represented smaller numerosities with higher precision and larger numerosities with lower precision, exhibiting a numerical magnitude effect. When the linear scale was compressed into a logarithmic scale, this magnitude effect was offset, resulting in similar representational characteristics across different numerosities. This finding suggests that the mental number line of pigeons is logarithmic rather than linear, consistent with the Weber–Fechner law. While biological brains seek precision in representing numerical information, they must also take computational load into account. This representational strategy may be the optimal outcome of the trade-off between computational precision and computational load that biological brains have achieved through long-term evolution.</p></div>","PeriodicalId":7879,"journal":{"name":"Animal Cognition","volume":"28 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10071-025-01957-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Uncertainty monitoring in Eurasian jays (Garrulus glandarius) 欧亚松鸦（Garrulus glandarius）不确定性监测

IF 1.9 2区生物学

Animal Cognition Pub Date : 2025-05-15 DOI: 10.1007/s10071-025-01960-3

M. Loconsole, A. K. Schnell, E. Garcia-Pelegrin, N. S. Clayton

{"title":"Uncertainty monitoring in Eurasian jays (Garrulus glandarius)","authors":"M. Loconsole, A. K. Schnell, E. Garcia-Pelegrin, N. S. Clayton","doi":"10.1007/s10071-025-01960-3","DOIUrl":"10.1007/s10071-025-01960-3","url":null,"abstract":"<div><p>Metacognition– namely the capacity to reflect on one’s own cognitive processes - provides animals with numerous evolutionary advantages. Metacognition abilities encompass enhanced decision-making in uncertain situations, more efficient resource management, error detection and correction, and improved problem-solving skills. Here, we investigate how Eurasian jays, <i>Garrulus glandarius</i>, monitor uncertainty through a working memory food-retrieval task. In this task, a desirable food item is hidden under one of two cups, which are then shuffled either once (easy treatment) or several times (difficult treatment). The jays then choose to either engage in locating the food or opt out by selecting a third cup that offers a less preferred food reward. Our findings reveal that the difficulty of the task significantly influenced the jays’ choice, with a higher tendency to opt out during difficult trials. Individual performance analysis revealed that when jays that typically opted out of difficult trials chose to engage instead, they exhibited significant accuracy. This suggests their decisions were guided by a confidence assessment of their knowledge. Overall, our study indicates that Eurasian jays possess metacognitive abilities that enable them to evaluate their own certainty and make strategic decisions based on perceived task difficulty and confidence in their knowledge. These capabilities likely confer advantages in natural settings, such as caching behaviours, allowing jays to make well-informed decisions about when to store or retrieve food based on environmental cues and internal assessments of uncertainty.</p></div>","PeriodicalId":7879,"journal":{"name":"Animal Cognition","volume":"28 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10071-025-01960-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143949464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Cognitive control of memory in a food-storing and a non-storing bird species 储存食物和不储存食物的鸟类的记忆认知控制

IF 1.9 2区生物学

Animal Cognition Pub Date : 2025-05-05 DOI: 10.1007/s10071-025-01954-1

Emily Kathryn Brown, David F. Sherry, Robert R. Hampton

{"title":"Cognitive control of memory in a food-storing and a non-storing bird species","authors":"Emily Kathryn Brown, David F. Sherry, Robert R. Hampton","doi":"10.1007/s10071-025-01954-1","DOIUrl":"10.1007/s10071-025-01954-1","url":null,"abstract":"<div><p>Scatter hoarding black-capped chickadees use memory to relocate hidden food, often after delays of hours or days. The ability of these birds to maintain accurate memories of the location and current status of many food caches while engaging in other distracting daily activities suggests that their memory may be especially resistant to competing cognitive load. We measured resistance to competing cognitive load during spatial memory tests in black-capped chickadees (<i>Poecile atricapillus</i>) and a non-caching species, dark-eyed juncos (<i>Junco hyemalis</i>). Birds were presented with two types of task. In the Discrimination task, birds learned by trial-and-error to select a target from among 2 distractors. In the Match-to-Sample task, birds viewed a sample which they had to remember in order to correctly select it from among two distractors at test. On two-thirds of trials, the tasks were presented <i>Stand-Alone</i>: after birds initiated a trial, they completed either a Discrimination or a Match-to-Sample task. The remaining trials were <i>Concurrent</i> causing a competing cognitive load: after birds intiated a trial, they saw the sample for the Match-to-Sample task, then completed a Discrimination during the retention interval, and finally completed a Match-to-Sample test. Competing cognitive load reduced accuracy of juncos significantly more than accuracy of chickadees. The need to encode and retain the locations of multiple food caches may have led to the evolution of enhanced cognitive control of memory in black-capped chickadees.</p></div>","PeriodicalId":7879,"journal":{"name":"Animal Cognition","volume":"28 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10071-025-01954-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Dimensions of corvid consciousness 乌鸦意识的维度

IF 1.9 2区生物学

Animal Cognition Pub Date : 2025-05-02 DOI: 10.1007/s10071-025-01949-y

Walter Veit, Heather Browning, Elias Garcia-Pelegrin, James R. Davies, Jamie G. DuBois, Nicola S. Clayton

引用次数: 0

Combinatorics and complexity of chimpanzee (Pan troglodytes) facial signals 黑猩猩面部信号的组合学和复杂性

IF 1.9 2区生物学

Animal Cognition Pub Date : 2025-04-30 DOI: 10.1007/s10071-025-01955-0

Brittany N. Florkiewicz, Teddy Lazebnik

{"title":"Combinatorics and complexity of chimpanzee (Pan troglodytes) facial signals","authors":"Brittany N. Florkiewicz, Teddy Lazebnik","doi":"10.1007/s10071-025-01955-0","DOIUrl":"10.1007/s10071-025-01955-0","url":null,"abstract":"<div><p>There have been shifts toward more systematic and standardized methods for studying non-human primate facial signals, thanks to advancements like animalFACS. Additionally, there have been calls to better integrate the study of both facial and gestural communication in terms of theory and methodology. However, few studies have taken this important integrative step. By doing so, researchers could gain greater insight into how the physical flexibility of facial signals affects social flexibility. Our study combines both approaches to examine the relationship between the flexibility of physical form and the social function of chimpanzee facial “gestures”. We used chimpFACS along with established gestural ethograms that provide insights into four key gesture properties and their associated variables documented in chimpanzee gestures. We specifically investigated how the combinatorics (i.e., the different combinations of facial muscle movements) and complexity (measured by the number of discrete facial muscle movements) of chimpanzee facial signals varied based on: (1) how many gesture variables they exhibit; (2) the presence of a specific goal; and (3) the context in which they were produced. Our findings indicate that facial signals produced with vocalizations exhibit fewer gesture variables, rarely align with specific goals, and exhibit reduced contextual flexibility. Furthermore, facial signals that include additional visual movements (such as those of the head) and other visual signals (like manual gestures) exhibit more gestural variables, are frequently aligned with specific goals, and exhibit greater contextual flexibility. Finally, we discovered that facial signals become more morphologically complex when they exhibit a greater number of gesture variables. Our findings indicate that facial “gesturing” significantly enhanced the facial signaling repertoire of chimpanzees, offering insights into the evolution of complex communication systems like human language.</p></div>","PeriodicalId":7879,"journal":{"name":"Animal Cognition","volume":"28 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10071-025-01955-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143892740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Breeding barn swallows recognize householders from strangers 正在繁殖的家燕能从陌生人中认出住户

IF 1.9 2区生物学

Animal Cognition Pub Date : 2025-04-29 DOI: 10.1007/s10071-025-01956-z

Yiming Liu, Yuran Liu, Wei Liang

{"title":"Breeding barn swallows recognize householders from strangers","authors":"Yiming Liu, Yuran Liu, Wei Liang","doi":"10.1007/s10071-025-01956-z","DOIUrl":"10.1007/s10071-025-01956-z","url":null,"abstract":"<div><p>The aim of this study was to investigate the ability of barn swallows (<i>Hirundo rustica</i>) to recognize humans. A field study was conducted in Caoyang Village, Zhanjiang City, Guangdong Province, South China. We assessed the responses of female barn swallows to the recognition of different types of human individuals by measuring their flight initiation distance (FID) when they incubated eggs in the nests. Our results demonstrated that barn swallows can identify the householder where their nest is located, displaying lower FID when the householder approaches, compared to an unfamiliar experimenter. Furthermore, there was no significant difference in FID between swallows reacting to householders who were rarely at home versus those who were frequently present, suggesting that barn swallows may possess the capability to recognize and retain memory of individual humans over time. Our findings provide evidence that barn swallows exhibit remarkable cognitive abilities. The long-standing symbiotic relationship between barn swallows and humans provides a unique model for studying the adaptation of species to environments with close human interactions. Research on their behavior and survival strategies can offer insights into the influence of symbiotic relationships on species adaptability and evolution. </p></div>","PeriodicalId":7879,"journal":{"name":"Animal Cognition","volume":"28 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10071-025-01956-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143883710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Exploring the function of greeting display in a long-term monogamous songbird, the Java sparrow 探索长期一夫一妻制鸣禽爪哇麻雀的问候功能

IF 1.9 2区生物学

Animal Cognition Pub Date : 2025-04-19 DOI: 10.1007/s10071-025-01953-2

Yuhan Zhang, Masayo Soma

{"title":"Exploring the function of greeting display in a long-term monogamous songbird, the Java sparrow","authors":"Yuhan Zhang, Masayo Soma","doi":"10.1007/s10071-025-01953-2","DOIUrl":"10.1007/s10071-025-01953-2","url":null,"abstract":"<div><p>Complex displays that comprise multiple behavioral elements play an essential role in the communication of group-living animals. One of them is a greeting display. Greeting is performed during the reunion after a separation, and is known for maintaining social bonds in mammals and pair bonds in monogamous fish. Greeting displays have been documented in birds, but lack functional studies. Java sparrows (<i>Lonchura oryzivora</i>) are gregarious and long-term monogamous songbird species, exhibiting a complex greeting display consisting of a sequence of four repetitive behavioral elements. We hypothesized that Java sparrow greetings function as between-pair communication in social contexts. In particular, we expected that pair-bonded partners would greet more after experiencing longer separation. In addition, we also predicted that they greet more when other conspecific individuals are nearby; as it is more important for them to confirm and advertise their commitment relationships. To test these ideas, we conducted separation-reunion tests using pair-bonded Java sparrows with different separation times (long vs. short) and different social conditions (with vs. without the presence of conspecifics). We calculated and compared the sequential complexity of the greeting displays. We showed that subject pairs performed a greater number of greeting display bouts after longer separation times. In the presence of conspecifics, greeting displays were more frequent, longer, and more complex. Our finding supports the idea that greeting displays in birds are crucial to pair-bond maintenance, contributing to understanding the evolution of complex communications in birds.</p></div>","PeriodicalId":7879,"journal":{"name":"Animal Cognition","volume":"28 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10071-025-01953-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143848894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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