Animal Behaviour最新文献

{"title":"Association Page","authors":"","doi":"10.1016/S0003-3472(26)00243-5","DOIUrl":"10.1016/S0003-3472(26)00243-5","url":null,"abstract":"","PeriodicalId":50788,"journal":{"name":"Animal Behaviour","volume":"239 ","pages":"Article 123705"},"PeriodicalIF":2.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148853999","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}

{"title":"Editors Page","authors":"","doi":"10.1016/S0003-3472(26)00242-3","DOIUrl":"10.1016/S0003-3472(26)00242-3","url":null,"abstract":"","PeriodicalId":50788,"journal":{"name":"Animal Behaviour","volume":"239 ","pages":"Article 123704"},"PeriodicalIF":2.3,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148854525","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}

{"title":"","authors":"Dustin R. Rubenstein","doi":"10.1016/j.anbehav.2026.123664","DOIUrl":"10.1016/j.anbehav.2026.123664","url":null,"abstract":"","PeriodicalId":50788,"journal":{"name":"Animal Behaviour","volume":"238 ","pages":"Article 123664"},"PeriodicalIF":2.3,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148642879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"From calls to communities: acoustic monitoring of contact calls indicates spatial structure in endangered belugas","authors":"Jaclyn A. Aubin,&nbsp;Daniel J. Mennill,&nbsp;Marie-Ana Mikus,&nbsp;Robert Michaud,&nbsp;Valeria Vergara","doi":"10.1016/j.anbehav.2026.123662","DOIUrl":"10.1016/j.anbehav.2026.123662","url":null,"abstract":"<div><div>Animal populations often exhibit complex patterns of spatial or social structure, with various levels of organization below the population level. Acoustic monitoring can reveal such structure, particularly when animals produce calls that contain individual or group-level signatures. In this study, we monitored the complex contact calls of belugas, <em>Delphinapterus leucas</em>, in the St Lawrence Estuary, Canada, across six sites during five field seasons. Using a mark–recapture-based movement network, we examined the movement of belugas by tracking the occurrence of distinctive contact calls across sites. Our movement network revealed a high degree of population structure and the presence of two distinct communities: one within the Saguenay Fjord, recorded at two locations (i.e. the ‘Saguenay community’), and another along the southern shore of the estuary, recorded at four locations (i.e. the ‘South Shore community’). These results align with findings of a previous photo-identification-based study that suggested the presence of clusters of individuals inhabiting the Saguenay Fjord and southern shore of the estuary. Our study provides the first acoustic evidence of fine-scale population structure in the endangered St Lawrence Estuary beluga population. These findings, together with the population's exposure to significant anthropogenic disturbances across its range, reinforce the need to expand the Saguenay–St Lawrence Marine Park to protect the core habitats and home ranges of both communities. More broadly, our results demonstrate that passive acoustic monitoring can reveal population spatial structure and inform behaviour-driven conservation action.</div></div>","PeriodicalId":50788,"journal":{"name":"Animal Behaviour","volume":"238 ","pages":"Article 123662"},"PeriodicalIF":2.3,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148651152","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}

{"title":"Breeding experience and pair bond duration both increase reproductive success in an avian cooperative breeder","authors":"Guy Beauchamp,&nbsp;Tori D. Bakley,&nbsp;John W. Fitzpatrick,&nbsp;Sahas Barve","doi":"10.1016/j.anbehav.2026.123646","DOIUrl":"10.1016/j.anbehav.2026.123646","url":null,"abstract":"<div><div>Monogamous mating systems occur across many animal taxa and are especially prevalent in birds. In species with long-term monogamy, individuals may remain with the same breeding partner or switch partners from year to year. Longer pair bonds may reduce costly mate sampling, increase familiarity and coordination within pairs and help defend territories across years, suggesting pathways to more success in long-lasting pairs such as increased reproductive success and greater breeder survival. One challenge in the study of long-term monogamy remains to disentangle the effects of age, breeding experience and pair bond duration on survival and reproductive success, as all three can act independently in determining whether long-lasting pairs are more successful. We investigated the effect of pair bond duration and breeding experience in the Florida scrub-jay, <em>Aphelocoma coerulescens</em>, a cooperative breeder, using longitudinal and cross-sectional approaches taking advantage of frequent re-pairing in older individuals induced by partner's death or divorce. Based on 35 years of observations, we found that both breeding experience and pair bond duration independently increased reproductive success (number of nutritionally independent young), controlling for age and other drivers of reproductive success including territory size, population density, food availability and group composition. Neither breeding experience nor pair bond duration influenced the odds of surviving the nonbreeding season for breeders and juveniles, but the odds of surviving the breeding season slightly increased for experienced breeders. We also found that mating with an older partner reduced survival in the nonbreeding season. Therefore, mate switching appears to be costly if individuals re-pair with an inexperienced partner or an older one. This study highlights the importance of experience in determining reproductive success especially when experience is acquired with the same partner over the years.</div></div>","PeriodicalId":50788,"journal":{"name":"Animal Behaviour","volume":"238 ","pages":"Article 123646"},"PeriodicalIF":2.3,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148651512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Singing softly at the edge: vocal amplitude and performance limits in star finch courtship","authors":"Hana Goto,&nbsp;Masayo Soma","doi":"10.1016/j.anbehav.2026.123648","DOIUrl":"10.1016/j.anbehav.2026.123648","url":null,"abstract":"<div><div>Studies of birdsong have long focused on long-range signals used for attracting mates and defending territory, but recent research has highlighted the importance of soft songs in social bonding and pair maintenance. Even for species that sing softly, courtship is a context in which enhanced vocal output can be beneficial. Indeed, many bird species modulate their song amplitude according to the social context. However, it remains unclear how this amplitude plasticity interacts with the biomechanical demands of producing structurally complex vocalizations. Here, we investigated how song performance changes with the social context in the star finch, <em>Bathilda ruficauda</em>, an estrildid species that produces soft songs with highly complex syllables. Comparing undirected songs and female-directed songs, we examined whether males increase amplitude during courtship and, if so, whether this modulation induces changes in other spectrotemporal parameters due to parameter couplings and potential biomechanical trade-offs. We found that males produced female-directed songs with higher amplitude than undirected songs, but the difference was strikingly small. Notably, this amplitude increase was accompanied by a reduction in Wiener entropy, while other spectral parameters remained unchanged. These results suggest that star finches operate near a biomechanical ceiling where further increases in vocal amplitude would compromise syllable complexity. We propose that, in star finch courtship, structural song complexity may be prioritized over vocal amplitude. Given that star finch courtship occurs only at close range and also involves visual signals, the selection pressure for high amplitude may be relaxed. Overall, our findings highlight the functional diversity of birdsong and the need to broaden our understanding of avian vocal performance. Ultimately, we advocate overcoming the research bias regarding territorial birds with loud broadcast songs in order to gain a more comprehensive insight into the behavioural ecology of birdsong.</div></div>","PeriodicalId":50788,"journal":{"name":"Animal Behaviour","volume":"238 ","pages":"Article 123648"},"PeriodicalIF":2.3,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148642880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Using the STRANGE framework to improve replicability in animal behaviour research and allied fields","authors":"Mike M. Webster,&nbsp;Catherine Hobaiter,&nbsp;Ellis J.G. Langley,&nbsp;Graeme Ruxton,&nbsp;Bernhard Voelkl,&nbsp;Hanno Würbel,&nbsp;Christian Rutz","doi":"10.1016/j.anbehav.2026.123660","DOIUrl":"10.1016/j.anbehav.2026.123660","url":null,"abstract":"<div><div>Many research fields rely on assessing the behaviour of wild or captive animals, using observational and experimental protocols. This work is highly susceptible to sampling biases which, when unrecognized or undisclosed, can cause replication failure. Here, we illustrate how the STRANGE framework can be used to improve reporting quality and, ultimately, replicability in animal behaviour research. Using a combination of real-world and hypothetical case studies, we demonstrate how structured reporting of information about subjects and testing procedures can help contextualize mixed findings, enabling both improved assessments of research replicability and deeper biological insight. As a flexible tool for identifying, mitigating and reporting sampling biases, the STRANGE framework is already being leveraged productively by a wide range of user groups, including researchers, consortia, educators and journals. Our case study analyses have revealed several specific opportunities to support further community engagement and uptake. We recommend using the STRANGE framework to develop teaching materials on sampling biases, to support the work of many-labs consortia, to prepare robust preregistrations and registered reports and to conduct systematic retrospective analyses of seemingly unreliable findings. With its light-touch, researcher-led approach, the STRANGE framework has initiated an exciting grassroots push towards improved study designs, reporting and replicability in animal behaviour research.</div></div>","PeriodicalId":50788,"journal":{"name":"Animal Behaviour","volume":"238 ","pages":"Article 123660"},"PeriodicalIF":2.3,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148651151","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}

{"title":"Habituation, den defence and predatory opportunism appear to have contributed to coyote aggression in an urban park","authors":"Nathan C. Lewis,&nbsp;Colleen Cassady St. Clair,&nbsp;William L. Harrower,&nbsp;Sarah Benson-Amram","doi":"10.1016/j.anbehav.2026.123617","DOIUrl":"10.1016/j.anbehav.2026.123617","url":null,"abstract":"<div><div>Human–wildlife conflicts in urban settings are increasing and sometimes cause injury or mortality for people and wildlife. Conflicts may be exacerbated by large increases in outdoor human recreation, such as during the COVID-19 pandemic, when people were prevented from gathering indoors and made increasing use of parks. This appears to have occurred in Vancouver's Stanley Park, British Columbia, Canada, where an unprecedented 45 coyote, <em>Canis latrans</em>, attacks on humans occurred between December 2020 and August 2021. To understand how this situation arose and might predict similar future problems, we compared reported aggressive human–coyote encounters and coyote sightings in Stanley Park from 2020 to 2021. We sought to identify predictors of aggression among spatial and temporal variables associated with human activity and coyote behaviour. We also compared characteristics of human victims of attacks to those of park users in 2024. Coyote aggression was higher (1) during pandemic restrictions on indoor gatherings (associated with higher human activity outdoors), (2) on trails with greater human activity, (3) during times of the day and week with relatively low human activity and (4) in areas closer to coyote dens and farther from potential sources of anthropogenic food, including garbage bins and picnic areas. While proximity to anthropogenic food sources did not positively predict aggression, anecdotal reports described the behaviour of the aggressive coyotes as likely food-conditioned. Relative to observed park users, victims of coyote attacks were more often running and alone when attacked, but there was no effect of a person's age or gender, or of domestic dog presence. Our results suggest coyote aggression in Stanley Park likely resulted from a combination of habituation, den defence, opportunistic predatory behaviours, and possibly food conditioning. To avoid similar situations in the future, wildlife managers could encourage the public to recreate in groups, during peak-use hours and away from known den sites.</div></div>","PeriodicalId":50788,"journal":{"name":"Animal Behaviour","volume":"238 ","pages":"Article 123617"},"PeriodicalIF":2.3,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148651153","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}

{"title":"Personality variation is linked to environmental differences between edge and core habitats in a flightless insect","authors":"Michael Grant,&nbsp;Claudia Drees,&nbsp;Gerardo Fracasso,&nbsp;Wiebke Schuett","doi":"10.1016/j.anbehav.2026.123620","DOIUrl":"10.1016/j.anbehav.2026.123620","url":null,"abstract":"<div><div>Individuals with different personalities (i.e. consistent behavioural differences between individuals) probably vary in their ability to cope with certain environmental conditions, with ecological and evolutionary implications in both natural and human-altered environments. Theory suggests that personality differences are important when studying edge effects (i.e. changed environmental conditions at habitat edges compared to cores) and wider biodiversity responses, but empirical studies are lacking. Here, we examined whether a flightless woodland-dwelling ground beetle species, <em>Abax parallelepipedus</em>, exhibits personality differences in exploratory behaviour. We also investigated whether exploratory behaviour and body size differ between edge and core woodland habitats, and whether these differences can be explained by environmental conditions in these habitats. Almost 800 individuals from nine edge and nine core woodland habitats were studied in standardized novel environment tests in the field for their exploratory behaviour, and a subset was brought into the laboratory for repeated testing. Individuals showed personality differences, with higher exploration in core habitats compared to edge habitats, while body size did not differ systematically across habitats. Core and edge habitats differed in many environmental variables, for example aspects of ground vegetation cover, leaf litter depth, <em>A. parallelepipedus</em> density and canopy cover, and some environmental variables explained variation in exploration but not body size. For instance, exploratory behaviour increased with depth of leaf litter, which was higher in core than in edge habitats. We show that edge effects favoured different behaviours and potentially selected for different personalities than conditions in core habitats, possibly impacting intraspecific (behavioural) diversity, population dynamics and species interactions. Our results advance the understanding of intraspecific variation in behaviour in heterogeneous environments and are important given ongoing human-induced habitat fragmentation, which increases the amount of edge habitats.</div></div>","PeriodicalId":50788,"journal":{"name":"Animal Behaviour","volume":"238 ","pages":"Article 123620"},"PeriodicalIF":2.3,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148651155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Monopolization and cooperation: number of locations affects cooperation and partner preference in long-tailed macaques","authors":"Jeroen S. Zewald,&nbsp;Nina van Oordt,&nbsp;Lisette M. van den Berg,&nbsp;Elisabeth H.M. Sterck","doi":"10.1016/j.anbehav.2026.123632","DOIUrl":"10.1016/j.anbehav.2026.123632","url":null,"abstract":"<div><div>Cooperation in animals is often measured in a group setting using the loose string-pulling paradigm to reveal the effects of dominance and social bonds on participation and cooperation. Yet typically only one highly monopolizable cooperation location is provided, contrasting with less monopolizable settings where food can be obtained at multiple locations. We addressed the effect of monopolization on cooperation, partner preference and communication by providing captive, group-living long-tailed macaques, <em>Macaca fascicularis</em>, with one, three or five cooperation locations in a group setting. Although the level of cooperation increased only slightly with more locations, the subjects’ participation changed drastically. With only one cooperation location, two adolescent males formed the primary cooperating dyad. With three or five locations, cooperation became more evenly distributed and the adolescent male dyad cooperated more with other individuals. Communication related to cooperation was not observed and the macaques did not seem to understand the need for a partner, although cooperation improved over time. Our study indicates that tasks with one location may reflect cooperation only in a highly monopolizable setting and may lead to specific partner preferences that would not arise in less monopolizable settings. This raises the question of whether performance in other cognitive tests that require the participation of more than one subject in a group setting could also be affected by the number of test locations.</div></div>","PeriodicalId":50788,"journal":{"name":"Animal Behaviour","volume":"238 ","pages":"Article 123632"},"PeriodicalIF":2.3,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148651508","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}