Biology Letters最新文献_第2页

Play vocalizations induce affective bias in reward learning and memory in orangutans. 在猩猩的奖励学习和记忆中，玩耍的声音会引起情感偏见。

IF 2.7 2区生物学

Biology Letters Pub Date : 2026-10-07 DOI: 10.1098/rsbl.2026.0404

Daan W Laméris, Colin Allen, Heidi Lyn, Christopher F Martin, Emma K Nelson, Ximena J Nelson, Alex H Taylor, Erica A Cartmill

{"title":"Play vocalizations induce affective bias in reward learning and memory in orangutans.","authors":"Daan W Laméris, Colin Allen, Heidi Lyn, Christopher F Martin, Emma K Nelson, Ximena J Nelson, Alex H Taylor, Erica A Cartmill","doi":"10.1098/rsbl.2026.0404","DOIUrl":"https://doi.org/10.1098/rsbl.2026.0404","url":null,"abstract":"Affective biases, or shifts in learning and decision-making driven by affective states, are central to human cognition. Studies in rodents have shown that pharmacological and stress manipulations alter reward valuation, but how positive social signals shape these processes remains poorly understood. Here, we adapted the affective bias test, a translational rodent assay of affective biases in depression and antidepressant therapy, to ask whether positive social signals influence reward valuation in orangutans (Pongo spp.). We first validated the task by manipulating reward magnitude during learning and found that participants showed a significant preference for substrates previously associated with higher reward value, confirming sensitivity to reward valuation. We then tested whether play vocalizations influence reward valuation by presenting either conspecific play vocalizations or control sounds before learning reward-substrate associations, with identical reward values. In subsequent preference tests, orangutans showed a significant choice bias for substrates previously associated with play vocalization recordings. These findings demonstrate that orangutans experience positive affective states when hearing conspecific play vocalizations, as indicated by affective biases in reward valuation and memory.","PeriodicalId":9005,"journal":{"name":"Biology Letters","volume":"22 10","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149227170","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}

引用次数: 0

There may be many ways to be an herbivorous fish, but it usually takes a lot of guts. 可能有很多方法可以成为草食性鱼，但通常需要很大的勇气。

IF 2.7 2区生物学

Biology Letters Pub Date : 2026-10-07 DOI: 10.1098/rsbl.2026.0467

Aaron M Davis, Delson Hays, Matthew C Le Feuvre, Ricardo Betancur-R

引用次数: 0

Agriculture-urban interfaces, social vulnerability and climate change shape West Nile virus risk across the United States. 农业-城市界面、社会脆弱性和气候变化塑造了西尼罗河病毒在美国的风险。

IF 2.7 2区生物学

Biology Letters Pub Date : 2026-10-07 DOI: 10.1098/rsbl.2025.0817

Samantha B Sambado, Váleri N Vasquez, Mauricio Cruz-Loya, Johannah E Farner, Rachel L Fay, Samantha J Bents, Joshua E Lazaro, Talya Shragai, Isabel Delwel, Desire U Nalukwago, Erin Mordecai

{"title":"Agriculture-urban interfaces, social vulnerability and climate change shape West Nile virus risk across the United States.","authors":"Samantha B Sambado, Váleri N Vasquez, Mauricio Cruz-Loya, Johannah E Farner, Rachel L Fay, Samantha J Bents, Joshua E Lazaro, Talya Shragai, Isabel Delwel, Desire U Nalukwago, Erin Mordecai","doi":"10.1098/rsbl.2025.0817","DOIUrl":"10.1098/rsbl.2025.0817","url":null,"abstract":"Climate and land use change are reshaping the dynamics of vector-borne diseases. West Nile virus (WNV), the most widespread zoonotic arbovirus in the United States, illustrates the need to integrate climate, land cover and social vulnerability across heterogeneous landscapes when assessing spatial risk. We present a nationwide, county-level assessment of WNV risk using complementary statistical and mechanistic models to (i) identify socioecological correlates of current WNV incidence and (ii) project vector species-specific, temperature-dependent transmission suitability under mid- and late-century climate change scenarios. We found that land cover gradients, temperature-driven transmission and both occupational and residential exposure are associated with WNV incidence, particularly in mixed urban-agricultural landscapes. Future temperature and land cover projections suggest spatially variable shifts in environmental risk driven by divergent physiological responses among Culex species vectors. Our results highlight temperature and land cover as consistent, mechanistically grounded correlates of WNV risk at the national scale, while underscoring the need for refined, mosquito species-specific analyses at local levels. These insights can inform more targeted surveillance, vector control and climate adaptation strategies. We also identified key knowledge gaps, particularly around host and vector ecology, which must be addressed to improve public health responses in the face of ongoing environmental change.","PeriodicalId":9005,"journal":{"name":"Biology Letters","volume":"22 10","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13641919/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149103552","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

Cuttlefish use the negation of dead prey to judge food value in foraging decision. 墨鱼在觅食决策中，利用对猎物尸体的否定来判断食物价值。

IF 2.7 2区生物学

Biology Letters Pub Date : 2026-10-07 DOI: 10.1098/rsbl.2026.0445

Sophie Pei, Jun-Ya Lai, Chuan-Chin Chiao

{"title":"Cuttlefish use the negation of dead prey to judge food value in foraging decision.","authors":"Sophie Pei, Jun-Ya Lai, Chuan-Chin Chiao","doi":"10.1098/rsbl.2026.0445","DOIUrl":"https://doi.org/10.1098/rsbl.2026.0445","url":null,"abstract":"Understanding how targeted prey conditions influence foraging decisions is a fundamental issue in animal behaviour. The present study investigated whether cuttlefish use prey liveness to assess overall food quality. Cuttlefish were allowed to choose between different levels of prey freshness and quantity. Experiments 1 and 2 examined cuttlefish choices between one live shrimp alone and one live shrimp paired with either one or four freshly dead shrimps. Experiment 3 evaluated their preferences of one live shrimp paired with either one freshly dead shrimp or one hourly dead shrimp. Experiment 4 assessed their choices between these two types of dead shrimp alone. Results showed that cuttlefish significantly avoided the side containing one live shrimp paired with one freshly dead shrimp, and this avoidance increased proportionally with the quantity of dead shrimp. However, cuttlefish choice did not differ significantly between freshly and hourly dead shrimps. These findings suggest that the presence of dead shrimp decreases a cuttlefish's perceived food value, and that motionless prey, regardless of their condition, serve as a negative indicator of overall food quality. This study demonstrates that cuttlefish assess total prey value based on the negation of dead prey, a mental process of intentionally removing hindrances during evaluation.","PeriodicalId":9005,"journal":{"name":"Biology Letters","volume":"22 10","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149227092","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}

引用次数: 0

Beetle gloss is a cue of conspecifics, but only in sunny conditions. 甲虫的光泽是同种异体的线索，但只有在阳光充足的条件下。

IF 2.7 2区生物学

Biology Letters Pub Date : 2026-10-07 DOI: 10.1098/rsbl.2026.0358

Amanda M Franklin, Aika H Young, Katrina J Rankin, Aëto Apaix, Mark Hanlon, Avichal Tatu, Casper J van der Kooi

{"title":"Beetle gloss is a cue of conspecifics, but only in sunny conditions.","authors":"Amanda M Franklin, Aika H Young, Katrina J Rankin, Aëto Apaix, Mark Hanlon, Avichal Tatu, Casper J van der Kooi","doi":"10.1098/rsbl.2026.0358","DOIUrl":"https://doi.org/10.1098/rsbl.2026.0358","url":null,"abstract":"Illumination conditions have a tremendous influence on the appearance of colours in nature. This is especially true for glossy objects, which generate bright highlights in direct sunlight, but the visibility of these highlights is noticeably reduced in shaded or overcast conditions. Despite this dramatic change in appearance with illumination, we know little about how illumination influences the visibility of glossy objects, and no study has directly tested the functional consequences. Here, we investigated whether jewel beetles (family: Buprestidae) use glossiness as a long-distance cue of conspecifics and how weather conditions determine the visibility of glossy beetles. We documented beetle attraction to glossy and matte interception traps in their natural habitat. Male beetles were more attracted to glossy than matte traps, but only on sunny days. To determine whether surface gloss is also used to locate conspecifics at short-range, we documented beetle behaviour towards glossy and matte replica beetle models placed on host trees. Beetles were more likely to approach glossy than matte replica beetles. Our results indicate that jewel beetles use glossiness as both long- and short-range cues of potential conspecifics, but only in sunny conditions. This demonstrates that environmental conditions determine when these brilliant visual cues are functionally relevant.","PeriodicalId":9005,"journal":{"name":"Biology Letters","volume":"22 10","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149227123","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}

引用次数: 0

Diatom-lipid-copepod nexus under threat by global change. 全球变化威胁硅藻-脂类-桡足类关系。

IF 2.7 2区生物学

Biology Letters Pub Date : 2026-09-30 DOI: 10.1098/rsbl.2026.0369

Sigrun Jonasdottir, Richard Broughton, André Visser

{"title":"Diatom-lipid-copepod nexus under threat by global change.","authors":"Sigrun Jonasdottir, Richard Broughton, André Visser","doi":"10.1098/rsbl.2026.0369","DOIUrl":"https://doi.org/10.1098/rsbl.2026.0369","url":null,"abstract":"The central role of lipids in the ecology of high-latitude and temperate seas is under threat by global change. This hinges on the tight ecological links between diatoms and copepods of the genus Calanus and similar (e.g. Neocalanus, Calanoides) that produce and accumulate energy-rich lipids. Strongly coupled through seasonal water-column stability, nutrient supply, spring-bloom succession, and overwintering life strategies, this nexus is foundational to the highly productive food webs of these regions. We experimentally tested how a change in phytoplankton type from diatoms to flagellates, along with 2°C warming, affects lipid accumulation of the subarctic copepod Calanus finmarchicus. We report that the ability of C. finmarchicus to accumulate lipids is seriously impaired by a changing diet, being threefold higher on diatoms than flagellate-based diets, whereas within diet types, up to a sevenfold reduction in lipids is associated with a 2°C temperature rise. This, together with higher specific respiration rates, smaller size, and reduced diatom productivity, suggests the ability of Calanus to overwinter may be compromised, threatening their contribution to regional productivity and to sequestered carbon via the lipid pump. Similar lipid-mediated couplings are prevalent throughout seasonal environments, casting uncertainty on their future provision of ecosystem services.","PeriodicalId":9005,"journal":{"name":"Biology Letters","volume":"22 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149079579","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}

引用次数: 0

Detection of emergent multiple predator effects in a warming world. 在变暖的世界中，多种捕食者效应的检测。

IF 2.7 2区生物学

Biology Letters Pub Date : 2026-09-23 DOI: 10.1098/rsbl.2026.0257

Andy T Davidson, Michael McCoy, James Vonesh

{"title":"Detection of emergent multiple predator effects in a warming world.","authors":"Andy T Davidson, Michael McCoy, James Vonesh","doi":"10.1098/rsbl.2026.0257","DOIUrl":"https://doi.org/10.1098/rsbl.2026.0257","url":null,"abstract":"Predicting the influence of predators on food webs remains challenging, particularly when multiple predator species share a common prey species. In these cases, interactive effects (termed 'emergent' multiple predator effects; MPEs) can cause predators to have stronger or weaker effects on their prey than would be expected independently. Many studies highlight the ubiquity of MPEs, however, recent work has shown that failure to account for nonlinear but fundamentally predictable drivers of predation rate (e.g. prey depletion, prey body size, temperature, etc.) can bias predictions used to detect MPEs. Here, we demonstrate the application of a framework addressing these biases, the generalized functional response (GFR) approach, using empirical data on the temperature-dependent predation of mosquito larvae (Aedes atropalpus) by a two-predator assemblage (a dragonfly nymph, Erythemis simplicicollis and a diving beetle, Laccophilus maculosus). We showed that increased temperature differentially enhanced predation in both predator species in isolation, and in accounting for this, we detected an emergent MPE in two-predator assemblages only at low temperatures (20°C). Our findings add to a growing body of research that suggests that the occurrence of MPEs may vary with temperature, while stressing the importance of accounting for nonlinear drivers of predation when testing for MPEs.","PeriodicalId":9005,"journal":{"name":"Biology Letters","volume":"22 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023867","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}

引用次数: 0

Amphipods associate with epibiotic filamentous bacteria at a shallow-water hydrothermal vent. 片脚类动物与浅水热液喷口的表层丝状细菌为伴。

IF 2.7 2区生物学

Biology Letters Pub Date : 2026-09-23 DOI: 10.1098/rsbl.2026.0111

Magdalena N Georgieva, Lucile Durand, Marie-Anne Cambon, Crispin T S Little, Guadalupe Bribiesca-Contreras, Jon T Copley, Eva C D Stewart, Philippe Elies, Jorundur Svavarsson, Erlendur Bogason, Adrian G Glover

{"title":"Amphipods associate with epibiotic filamentous bacteria at a shallow-water hydrothermal vent.","authors":"Magdalena N Georgieva, Lucile Durand, Marie-Anne Cambon, Crispin T S Little, Guadalupe Bribiesca-Contreras, Jon T Copley, Eva C D Stewart, Philippe Elies, Jorundur Svavarsson, Erlendur Bogason, Adrian G Glover","doi":"10.1098/rsbl.2026.0111","DOIUrl":"https://doi.org/10.1098/rsbl.2026.0111","url":null,"abstract":"In the deep ocean, hydrothermal vents sustain remarkable animal-microbial symbioses, in which bacteria colonizing animal external or internal tissues use reduced chemicals from venting fluids to perform chemosynthesis and nourish their host. Hydrothermal vents also occasionally occur within the photic zone, but the prevalence of photosynthesis within these settings is considered to override the development of chemosymbiotic interactions; animal-microbial associations such as those observed at deep-sea vents have rarely been recorded at shallow vents. During 2019 sampling of the Strýtan hydrothermal vent site, Eyjafjörður, Iceland (16-70 m depth), amphipods in the genus Ischyrocerus were opportunistically collected from near the top of the tallest vent chimney. A subset of these were found to have microbial mats specifically colonizing their antennae, with prevalent bacteria in these mats demonstrating genetic similarity to deep-sea hydrothermal vent bacteria, including ectosymbionts of vent-endemic crustaceans. These findings demonstrate the importance of vent productivity to the development of unique associations between animals and putatively chemosynthetic bacteria even in environments where photosynthesis dominates, highlighting a pathway through which more intimate vent symbioses may arise, as well as the influence of vent environments in animal evolution throughout ocean depths.","PeriodicalId":9005,"journal":{"name":"Biology Letters","volume":"22 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023780","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}

引用次数: 0

Multisite analysis of infant corpse carrying in Pan reveals maternal attachment and death context as explanations of carrying duration. 潘族婴儿尸体携带的多地点分析揭示了母亲依恋和死亡背景对携带时间的解释。

IF 2.7 2区生物学

Biology Letters Pub Date : 2026-09-16 DOI: 10.1098/rsbl.2026.0371

Reece Hammond, Thomas A Püschel

{"title":"Multisite analysis of infant corpse carrying in Pan reveals maternal attachment and death context as explanations of carrying duration.","authors":"Reece Hammond, Thomas A Püschel","doi":"10.1098/rsbl.2026.0371","DOIUrl":"https://doi.org/10.1098/rsbl.2026.0371","url":null,"abstract":"Understanding the mechanisms underlying non-human primate death-related behaviours is essential for reconstructing the evolution of human responses to death and death-related cognition. Infant corpse carrying is widely observed in chimpanzees and bonobos, yet its underlying mechanisms remain debated. Analysing 83 published cases across multiple sites using Bayesian mixed-effects models, we found strong support that infant corpse carrying duration varies with cause of death, infant age at death and site-level interbirth intervals. A less robust association of temperature with carrying duration was also identified. These results suggest that variation in infant corpse carrying duration is parsimoniously accounted for by the persistence of maternal behavioural systems being modulated by social carrying risk, dyadic bond strength, life-history context and decomposition rates. Crucially, none of the patterns observed in infant corpse carrying duration necessitate mothers recognizing death as an irreversible biological state, though they do not necessarily preclude such recognition. Given the close evolutionary relationship of Pan and Homo, this may indicate that the complex cognitive frameworks required to recognize death's finality emerged in the hominin lineage after divergence from the Pan-Homo last common ancestor.","PeriodicalId":9005,"journal":{"name":"Biology Letters","volume":"22 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148975558","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}

引用次数: 0

Population-level impacts of reducing artificial light at night across an entire migratory corridor. 减少夜间人工照明对整个迁徙走廊种群水平的影响。

IF 2.7 2区生物学

Biology Letters Pub Date : 2026-09-09 DOI: 10.1098/rsbl.2026.0304

Brendan M Lehman, Benjamin P Burford, Thomas R Nelson, Nicholas J Demetras, Cyril Michel

{"title":"Population-level impacts of reducing artificial light at night across an entire migratory corridor.","authors":"Brendan M Lehman, Benjamin P Burford, Thomas R Nelson, Nicholas J Demetras, Cyril Michel","doi":"10.1098/rsbl.2026.0304","DOIUrl":"10.1098/rsbl.2026.0304","url":null,"abstract":"Artificial light at night (ALAN) is a widespread anthropogenic pollution that poses challenges for wildlife in nearly every ecosystem on planet Earth. Although there has been substantial progress on understanding the effects of ALAN on animal physiology and behaviour, few studies have estimated its population-level impacts in the wild, leaving the potential conservation benefits of ALAN reduction unresolved. Here, we evaluated the population-level effect of ALAN reduction through its impact on juvenile Chinook salmon (Oncorhynchus tshawytscha) vulnerability to predation during oceanward migration through California's Sacramento-San Joaquin Delta (Delta). Removal of all ALAN sources was conservatively predicted to allow up to 1123 additional successful migrants per million migration attempts, depending on the baseline rate of through-Delta migration success and phototaxic behaviour. Reducing the impact of ALAN in this system could have small but worthwhile benefits for salmon at a cost and degree of contention that is trivial compared with many other habitat restoration actions.","PeriodicalId":9005,"journal":{"name":"Biology Letters","volume":"22 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13561084/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148910757","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