Behavioral Ecology最新文献_第2页

Feeding ecology and behavioral adaptations shape injury patterns in central European ants. 饲养生态和行为适应形成中欧蚂蚁的伤害模式。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2026-05-23 eCollection Date: 2026-07-01 DOI: 10.1093/beheco/arag055

Melvin Kenneth Opolka, Alina Koeters, Erik Thomas Frank

{"title":"Feeding ecology and behavioral adaptations shape injury patterns in central European ants.","authors":"Melvin Kenneth Opolka, Alina Koeters, Erik Thomas Frank","doi":"10.1093/beheco/arag055","DOIUrl":"10.1093/beheco/arag055","url":null,"abstract":"Injuries are common in animals and represent a major threat to individual survival. They can result from inter- or intraspecific conflict, predation, or pugnacious prey. Despite their potential ecological and evolutionary importance, injury patterns remain poorly documented in animal populations. To test whether a species' feeding ecology or habitat can predict injury patterns, we quantified injury rates and affected body regions among native ant species collected from different habitats in Bavaria, Germany. Specimens were sampled using pitfall traps, which proved to be an efficient method for injury assessment. Injury rates varied substantially among species and genera, ranging from 0% to 38%. Predatory ant species exhibited higher frequencies of leg injuries, whereas omnivorous species were more frequently injured at the antennae. The distribution of injuries likely reflects both foraging ecology and species-specific wound care behaviors, with a high frequency of trochanter injuries potentially indicating prior amputation events to cope with infected leg injuries, as observed in Lasius alienus. Our findings demonstrate that injury propensity and distribution are shaped by feeding habits and behavioral adaptations, providing comparative evidence that the costs and management of injuries vary systematically among ant species. Our study thus highlights injuries as a measurable axis of selection that may have contributed to the emergence of wound care and other forms of social immunity in ants.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"37 4","pages":"arag055"},"PeriodicalIF":2.2,"publicationDate":"2026-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13247590/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148216257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Male bumblebees sustain mate-seeking by adjusting foraging to environmental conditions. 雄性大黄蜂通过根据环境条件调整觅食方式来维持求偶行为。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2026-05-19 eCollection Date: 2026-07-01 DOI: 10.1093/beheco/arag054

Natacha Rossi, Charlotte Doussot, Joseph L Woodgate, Mathieu Lihoreau, Lars Chittka

{"title":"Male bumblebees sustain mate-seeking by adjusting foraging to environmental conditions.","authors":"Natacha Rossi, Charlotte Doussot, Joseph L Woodgate, Mathieu Lihoreau, Lars Chittka","doi":"10.1093/beheco/arag054","DOIUrl":"10.1093/beheco/arag054","url":null,"abstract":"Male bees navigate complex tradeoffs between energy acquisition and reproductive signaling, yet their movement strategies remain understudied. Unlike workers that optimize foraging to support the colony, male bumblebees (Bombus terrestris) forage independently to collect nectar and deposit sex pheromones on selected plants. Using high-resolution 3D tracking in an indoor flight cage, we investigated how the spatial arrangement of nectar and scent-marking sites, along with nectar availability, influence male movement patterns. We manipulated the distribution of feeders (artificial flowers) and scent-marking locations (branches), and varied nectar delivery rates, to assess effects on foraging, scent-marking, and patrolling. Males responded strongly to spatial structure: in clumped arrays with evenly spaced resources, movements between consecutive visits were shorter and more localized, while in dispersed arrays with irregular spacing, transitions were longer and more variable. The combination of dispersed spacing and low nectar availability imposed the highest foraging demands, resulting in fewer feeding events and reduced total feeding time. Despite these increased costs, males maintained consistent investment in reproductive behaviors, suggesting a prioritization of mate-seeking over energy gain. Rather than reducing signaling, males adjusted their foraging strategy-favoring fewer but prolonged feeding bouts when nectar availability allowed. These findings reveal a unidirectional behavioral adjustment, in which foraging is modulated to sustain reproductive effort, and show how spatial resource structure and nectar availability together shape movement decisions in male pollinators.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"37 4","pages":"arag054"},"PeriodicalIF":2.2,"publicationDate":"2026-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13247596/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148216240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Snake markings facilitate diverse anti-predator functions depending on habitat and viewing angle. 根据栖息地和观察角度，蛇的斑纹有助于不同的反捕食者功能。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2026-05-18 eCollection Date: 2026-07-01 DOI: 10.1093/beheco/arag051

Zixiang Li, George R A Hancock, Laura A Kelley, Martin Stevens

{"title":"Snake markings facilitate diverse anti-predator functions depending on habitat and viewing angle.","authors":"Zixiang Li, George R A Hancock, Laura A Kelley, Martin Stevens","doi":"10.1093/beheco/arag051","DOIUrl":"10.1093/beheco/arag051","url":null,"abstract":"Animals employ diverse coloration strategies to reduce predation risk, with patterns playing a key role in camouflage or for signaling unprofitability. Snakes exhibit various markings, but the specific antipredator functions of these patterns remain debated. We investigated how different snake patterns interact with habitat background and predator viewing conditions to influence camouflage. Using artificial snake models with 4 patterns (uniform, stripe, spot, zigzag) and 2 body colors (brown, gray), we assessed detectability across different natural habitats in southwest UK. We used visual modeling to simulate mammalian and avian predators and quantified background matching and edge disruption across varying visual distance and angles. Our results show that patterns affect camouflage depending on habitat and observer perspective. Spot and zigzag patterns increased edge disruption, particularly at greater distances, while striped patterns provided less effective concealment. However, zigzag patterns increased the contrast of snakes with conspicuous coloration in open habitats, suggesting potential aposematism. Viewing angle significantly influenced camouflage, with higher angles breaking edge disruption of zigzag and spot patterns, which also decreases as an observer approaches. Our findings highlight the multifunctionality of varied snake patterns, demonstrating their ability to facilitate both crypsis and aposematism depending on the ecological context. These results emphasize the importance of integrating habitat, body color, and predator perspective in understanding antipredator adaptations.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"37 4","pages":"arag051"},"PeriodicalIF":2.2,"publicationDate":"2026-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13202211/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148041063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Plasticity of vibratory courtship in response to nuptial gift quality in male Pisaura mirabilis. 雄性水仙花对结婚礼物质量响应的振动求爱的可塑性。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2026-05-14 eCollection Date: 2026-07-01 DOI: 10.1093/beheco/arag053

Morgan M Oberweiser, Mariève E Hébert, Monika J B Eberhard

{"title":"Plasticity of vibratory courtship in response to nuptial gift quality in male Pisaura mirabilis.","authors":"Morgan M Oberweiser, Mariève E Hébert, Monika J B Eberhard","doi":"10.1093/beheco/arag053","DOIUrl":"10.1093/beheco/arag053","url":null,"abstract":"Courtship is often a multimodal process involving several signals of different modalities occurring simultaneously. Male nursery web spiders (Pisaura mirabilis) perform substrate-borne vibrations while offering a nuptial gift (a nutritional donation which also serves as a visual and olfactory signal) as they court females. The nuptial gift, consisting of a prey item wrapped in silk, is a considerable investment for the male, and vibration is also likely an energetically costly signal. In this study, we investigate how these 2 expensive mate attraction tactics interact in order to explore how investment might be partitioned between them. We conducted behavioral experiments where male P. mirabilis were provided with nuptial gifts in 3 treatments-no gift, medium gift, large gift-and recorded their courtship vibrations in repeated trials (once with each nuptial gift treatment). We found that calling duration (the total amount of time spent signaling) is longer when males have a nuptial gift vs. when they do not, but the duration is not plastic in response to the mass of the gift. Pulse rate is not affected by the quality of the nuptial gift. In trials where a gift is present, only pulse interval consistency changes based on gift quality, with intervals becoming more consistent (putatively more attractive) as gifts increase in mass. Our results suggest that male spiders do adjust their investment in vibratory courtship signals at a general level, though the plasticity is slight.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"37 4","pages":"arag053"},"PeriodicalIF":2.2,"publicationDate":"2026-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13202208/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148041073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The protective value of the size and movement components of deimatic behavior. 保护价值的大小和运动成分的震旦行为。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2026-04-30 eCollection Date: 2026-07-01 DOI: 10.1093/beheco/arag047

Liisa Hämäläinen, Connor M Marsland, Thomas E White, Hannah M Rowland, Kate D L Umbers

{"title":"The protective value of the size and movement components of deimatic behavior.","authors":"Liisa Hämäläinen, Connor M Marsland, Thomas E White, Hannah M Rowland, Kate D L Umbers","doi":"10.1093/beheco/arag047","DOIUrl":"10.1093/beheco/arag047","url":null,"abstract":"Deimatic behavior is an antipredator defense such as a sudden movement or sounds performed by prey upon perceiving a threat from a predator. Such behaviors can cause predators to slow or stop their attack, but how different components of deimatic behavior influence predator responses remains untested. We investigated the effect of prey movement, size, and size change on predator attack behavior using a robotic moth and wild Australian magpies (Gymnorhina tibicen) as predators. We first tested birds' responses to a nonmoving control moth and then presented them with a moving moth displaying deimatic behavior. The experiment included 3 different deimatic behavior treatments with the moving prey: a small moth, a large moth, and a moth that increased in size from small to large. We found that all deimatic behavior treatments were more effective at stopping the first approach compared with the nonmoving control moth, and that no treatment was more effective than another. There was no significant difference in attack latency among the treatments, although birds tended to attack the prey more quickly after the display when the moving prey remained small, compared with moving prey that increased in size during the movement. The robotic moth did not include warning colors or chemical defenses. Our results therefore indicate that protective value is conferred by movement alone, supporting the \"startle-first\" hypothesis that the behavioral component of deimatism can evolve before other defenses.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"37 4","pages":"arag047"},"PeriodicalIF":2.2,"publicationDate":"2026-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13190295/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148013376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Courtship choreography is stabilized among genetically isolated populations. 求偶舞蹈在基因隔离的种群中是稳定的。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2026-04-30 eCollection Date: 2026-07-01 DOI: 10.1093/beheco/arag048

Nathan J Butterworth, Thomas E White, Blake M Dawson, Jesse Appleton, Clayton McDonald, Angela McGaughran, Gregory Markowsky, Keith M Bayless

{"title":"Courtship choreography is stabilized among genetically isolated populations.","authors":"Nathan J Butterworth, Thomas E White, Blake M Dawson, Jesse Appleton, Clayton McDonald, Angela McGaughran, Gregory Markowsky, Keith M Bayless","doi":"10.1093/beheco/arag048","DOIUrl":"10.1093/beheco/arag048","url":null,"abstract":"Sexual selection has sculpted diverse and intricate courtship displays throughout the animal kingdom, where failure to achieve the choreographic standards of a potential partner can be highly costly for reproductive success. Yet this raises a paradox: if there is strong selection for optimal display choreography within species, how do courtship displays begin to diverge? To address this, we measure how the choreography of courtship changes among three populations of the dancing dune fly-Apotropina ornatipennis Malloch (Diptera: Chloropidae)-a species in which males and females spend their days cavorting on Australia's hot sandy beaches. Merging population genetics with detailed quantification of the courtship display, we explore which elements of the display are the first to diverge between isolated populations, whether new behaviors arise rapidly, and whether sequence rearrangements occur in the modular structure of the display. We find that these tiny flies express courtship repertoires that rival some of the most sophisticated displays in the animal kingdom. Yet despite clear genetic and geographic isolation, the complex choreography of courtship is largely stable-with the frequency of \"wing sweep\" emerging as the only display element showing evidence of divergence among populations. In contrast to the notion that courtship behavior should be highly evolvable and rapidly diverge among allopatric populations, our findings suggest that complex courtship displays can remain remarkably stable over short evolutionary timescales.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"37 4","pages":"arag048"},"PeriodicalIF":2.2,"publicationDate":"2026-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13180646/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147970137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The role of personal reproductive experience on nest building in a wild bird. 个体繁殖经验对野鸟筑巢的影响。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2026-04-30 eCollection Date: 2026-07-01 DOI: 10.1093/beheco/arag049

Elisabeth G Chapman, Sophie C Edwards, Evelyn J Alexander, Susan D Healy

{"title":"The role of personal reproductive experience on nest building in a wild bird.","authors":"Elisabeth G Chapman, Sophie C Edwards, Evelyn J Alexander, Susan D Healy","doi":"10.1093/beheco/arag049","DOIUrl":"10.1093/beheco/arag049","url":null,"abstract":"While much is known about the functions of avian nests in reproduction, the role of experience in nest building has often been overlooked, especially in natural populations. Increasing evidence from captive birds suggests that the environment an individual experiences affects nest-building decisions, as does reproductive experience. Here we asked whether in a wild population of blue tits Cyanistes caeruleus, experience affected: (i) the materials and/or amounts of material with which the birds chose to build, and/or (ii) the location in which they built. We investigated the material composition and effectiveness of nests built by female blue tits between 2016 and 2022. We found that (i) a high insulation: structure ratio was associated with higher hatching success; (ii) the rate at which nests cooled was faster the more offspring had fledged from that nest; (iii) individuals that successfully fledged at least 1 chick were more likely to reduce the amount of insulating material they put into their nest the following year than were blue tits that previously had been unsuccessful; (iv) for unsuccessful birds, changing the nest design the following year improved their fledgling success; and finally, (v) unsuccessful birds were also more likely to move to a different nestbox the following year. In sum, we find that wild blue tits used their experience of reproduction in 1 yr to change their building decisions the following year. This effect mirrors responses made by birds building in the laboratory but over a much longer time interval.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"37 4","pages":"arag049"},"PeriodicalIF":2.2,"publicationDate":"2026-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13202215/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148041108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanistic constraint and evolutionary history matter for the origin of innovation in animal communication. 机制约束和进化历史关系到动物交流创新的起源。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2026-04-27 eCollection Date: 2026-07-01 DOI: 10.1093/beheco/arag044

Terry J Ord

{"title":"Mechanistic constraint and evolutionary history matter for the origin of innovation in animal communication.","authors":"Terry J Ord","doi":"10.1093/beheco/arag044","DOIUrl":"10.1093/beheco/arag044","url":null,"abstract":"Numerous phylogenetic comparative studies have attempted to explain differences in species phenotypes as a function of present-day social or physical environments. In some cases, these investigations have also shown dramatic convergences among distantly related species, illustrating how common selection pressures can produce repeated adaptation. In other cases, distantly related species exhibit phenotypes that appear quite different, and despite putative similarities in selection. Understanding why this is the case is central to our broader knowledge of how evolution operates in nature, and what accounts for the diversity we see in the natural world. Species responding differently to common selection pressures likely traces back to mechanistic constraints and evolutionary starting points bounding the direction of adaptation. These are common themes in evolutionary biology and there is a long history dating back to Lorenz and Tinbergen of considering \"proximate\" and \"ultimate\" factors for interpreting present-day behavior. Yet, integration of mechanism and history is still often missing from behavioral ecology. This might reflect the reasonable assumption that behavior is, for the most part, shaped through plasticity or adaptive evolution in response to conditions existing in present-day environments. Yet this assumption fails to explain why species in similar environments so often differ in behavior. Only when behavior is placed into its broader phylogenetic context and explored through the lens of \"paths-of-least-resistance\" does adaptive innovation even become apparent. Iconic case studies including the sword of swordtails, the song of Darwin finches and the dewlap of anole lizards are examined through this lens to reveal hidden trajectories of adaptation that have led to innovation and diversity.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"37 4","pages":"arag044"},"PeriodicalIF":2.2,"publicationDate":"2026-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13190280/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148013340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Predation selection impacts social information use in guppies (Poecilia reticulata). 捕食选择影响孔雀鱼的社会信息使用。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2026-04-22 eCollection Date: 2026-05-01 DOI: 10.1093/beheco/arag036

Catarina Vila-Pouca, Hannah De Waele, Lisa Nijhuis, Regina Vega-Trejo, Marc Naguib, Alexander Kotrschal

{"title":"Predation selection impacts social information use in guppies (Poecilia reticulata).","authors":"Catarina Vila-Pouca, Hannah De Waele, Lisa Nijhuis, Regina Vega-Trejo, Marc Naguib, Alexander Kotrschal","doi":"10.1093/beheco/arag036","DOIUrl":"10.1093/beheco/arag036","url":null,"abstract":"Social information use helps animals to rapidly acquire biologically relevant information, but it can increase competition or be erroneous. The \"costly information' hypothesis proposes that animals especially rely on social information in high-risk contexts such as under predation pressure. However, whether predation drives the evolution of social learning remains enigmatic. Here we use artificial selection lines of Trinidadian guppies (Poecilia reticulata) that had been selected for predation survival for 3 generations (and control lines that were visually and olfactory exposed to predation but in a secured enclosure) to test how predation selects for social information use. In our study, social information use was assessed in a low-risk foraging context, which allows us to isolate evolved differences from acute responses under high-risk. Individuals observed a demonstrator on a screen solving a color association task, correctly or incorrectly, before attempting the task themselves. We show that individuals from both treatments learned the task, but only animals from the control lines relied on the use of social information during the process, while animals from the predation lines prioritized private information. Our results challenge the assumptions that social information use has adaptive benefits under increased predation risk. On the contrary, we propose that under high-predation certain social learning mechanisms may incur excessive costs due to, for instance, extensive acquisition time. We suggest that in a high-predation environment, disregarding social information and relying on personal information can be an adaptive strategy.","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"37 3","pages":"arag036"},"PeriodicalIF":2.2,"publicationDate":"2026-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13102101/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147760654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Predation risk shapes among- and within-individual variation in behavior in poison frog tadpoles. 在毒蛙蝌蚪的行为个体变异之间和内部的捕食风险形状。

IF 2.2 3区环境科学与生态学

Behavioral Ecology Pub Date : 2026-04-20 eCollection Date: 2026-07-01 DOI: 10.1093/beheco/arag041

Josie McPherson, Julien G A Martin, Lauriane Bégué, Noëlle Tschirren, Patrick Walsh, Eva Ringler

{"title":"Predation risk shapes among- and within-individual variation in behavior in poison frog tadpoles.","authors":"Josie McPherson, Julien G A Martin, Lauriane Bégué, Noëlle Tschirren, Patrick Walsh, Eva Ringler","doi":"10.1093/beheco/arag041","DOIUrl":"10.1093/beheco/arag041","url":null,"abstract":"Environmental conditions during early development can considerably shape individual behavior, and laboratory studies suggest that predator presence is an important factor influencing both within- and among-individual behavioral variation. To test this under natural conditions, we studied neotropical poison frog (Allobates femoralis) tadpoles from pools with and without dragonfly larvae (tadpole predators) under naturally varying environmental conditions. We measured 2 behavioral traits, distance moved in a novel environment and time to emerge from a shelter, across 4 repeated trials in predator-exposed (n = 48) and predator-naïve (n = 169) tadpoles. Predator-exposed tadpoles moved less, emerged later in their first trial and were more unpredictable in emergence time than predator-naïve individuals. Moreover, among-individual variation in both behaviors was higher in predator-exposed tadpoles, although behavioral repeatability did not differ significantly between predator-exposed and predator-naïve groups. Predator-naïve individuals exhibited behavioral and predictability syndromes, individuals that moved more also emerged sooner, and individuals more predictable in 1 behavior were more predictable in the other. Despite only being significant in predator-naïve individuals, these correlations did not differ between predator-exposed and predator-naïve groups. A personality-plasticity association occurred only in predator-exposed tadpoles: individuals that initially moved less showed less behavioral change across trials. These findings demonstrate that even in naturally variable environments, predation risk shapes behavioral variation at multiple levels, thereby contributing to the emergence and maintenance of \"animal personality\".","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"37 4","pages":"arag041"},"PeriodicalIF":2.2,"publicationDate":"2026-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13190278/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148013320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0