Proceedings. Biological sciences最新文献

Constant versus seasonal photoperiod and temperature yield divergent life-history responses to climate warming. 恒定与季节性的光周期和温度对气候变暖产生不同的生活史响应。

IF 3.5

Proceedings. Biological sciences Pub Date : 2026-10-28 DOI: 10.1098/rspb.2026.1212

Frank Johansson, Robby Stoks, Guillaume Wos, Szymon Sniegula

{"title":"Constant versus seasonal photoperiod and temperature yield divergent life-history responses to climate warming.","authors":"Frank Johansson, Robby Stoks, Guillaume Wos, Szymon Sniegula","doi":"10.1098/rspb.2026.1212","DOIUrl":"https://doi.org/10.1098/rspb.2026.1212","url":null,"abstract":"A key goal of predictive ecology is to understand how global warming affects ectotherm growth and development. Researchers often rear organisms under constant temperature and photoperiod regimes, raising the question of whether responses under these simplified conditions reflect those in realistic, seasonally varying environments. We examined key life-history traits of the damselfly Lestes sponsa across six combinations of constant and seasonal temperatures and photoperiod regimes, simulating present-day and future climates with a projected 4°C warming. Trait responses differed qualitatively and quantitatively among treatments. Mass and development responses to warming shifted direction depending on regime. For example, the response in mass to warming was reversed between constant (decrease) and seasonal varying (increase) conditions. In addition, developmental synchrony was stronger under seasonal photoperiods, and the temperature-size rule held only under constant conditions. Our results highlight that incorporating seasonal variation is crucial for developing a realistic framework for predicting species' responses to climate change.","PeriodicalId":520757,"journal":{"name":"Proceedings. Biological sciences","volume":"293 2081","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149291790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Depth sets the recovery clock: evidence for a time-at-pressure effect in sea lions. 深度设置恢复时钟：海狮压力时间效应的证据。

IF 3.5

Proceedings. Biological sciences Pub Date : 2026-10-28 DOI: 10.1098/rspb.2026.1690

Jonas F L Schwarz, Daniel P Costa, Oliver Krüger, Nathan Angelakis, Alastair Baylis, Barbara L Chilvers, Carsten F Dormann, Shannon L Fowler, Simon D Goldsworthy, Robert Harcourt, Joseph I Hoffman, Luis A Huckstadt, Jana Jeglinski, Elizabeth McHuron, Clive R McMahon, Sharon Melin, Diego Páez-Rosas, Svenja Stoehr, Fritz Trillmich, Stella Villegas-Amtmann, Rachel R Holser

{"title":"Depth sets the recovery clock: evidence for a time-at-pressure effect in sea lions.","authors":"Jonas F L Schwarz, Daniel P Costa, Oliver Krüger, Nathan Angelakis, Alastair Baylis, Barbara L Chilvers, Carsten F Dormann, Shannon L Fowler, Simon D Goldsworthy, Robert Harcourt, Joseph I Hoffman, Luis A Huckstadt, Jana Jeglinski, Elizabeth McHuron, Clive R McMahon, Sharon Melin, Diego Páez-Rosas, Svenja Stoehr, Fritz Trillmich, Stella Villegas-Amtmann, Rachel R Holser","doi":"10.1098/rspb.2026.1690","DOIUrl":"https://doi.org/10.1098/rspb.2026.1690","url":null,"abstract":"All air-breathing marine vertebrates face the same fundamental trade-off: time spent foraging underwater must be offset by surface recovery between dives. For decades, the dominant view in diving physiology has been that post-dive duration (PDD) reflects the repayment of oxygen debt and clearance of carbon dioxide and lactate. Using more than 800 000 dives from five sea lion species across 18 colonies spanning tropical to subpolar waters, we quantified how PDD scales with dive depth and duration and evaluated whether this pattern is consistent with metabolic recovery interpretations or instead points to depth-linked constraints. We found that PDD increases primarily and linearly with depth, while dive duration contributes to PDD only at greater depths, a relationship conserved across species despite pronounced differences in body mass, dive physiology and foraging ecology. Our findings conflict with predictions of metabolic recovery interpretations and point to a pressure-linked mechanism in which time at depth and resulting inert-gas loading shape surface recovery. By highlighting pressure-linked inert-gas management as a central candidate mechanism for surface interval regulation in inhalation divers, our study revises a central assumption in diving physiology, with broad consequences for understanding foraging efficiency, habitat accessibility and vulnerability to environmental change in air-breathing marine vertebrates.","PeriodicalId":520757,"journal":{"name":"Proceedings. Biological sciences","volume":"293 2081","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149291796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evolutionary decoupling of morphological and behavioural antipredator responses and their hormonal basis across anuran species. 进化解耦的形态和行为的反捕食者反应及其激素基础跨动物物种。

IF 3.5

Proceedings. Biological sciences Pub Date : 2026-10-28 DOI: 10.1098/rspb.2026.0887

Rafael Rico-Millan, H Christoph Liedtke, Lee Hyeun-Ji, Daniel R Buchholz, Ivan Gomez-Mestre

{"title":"Evolutionary decoupling of morphological and behavioural antipredator responses and their hormonal basis across anuran species.","authors":"Rafael Rico-Millan, H Christoph Liedtke, Lee Hyeun-Ji, Daniel R Buchholz, Ivan Gomez-Mestre","doi":"10.1098/rspb.2026.0887","DOIUrl":"https://doi.org/10.1098/rspb.2026.0887","url":null,"abstract":"Adaptive plasticity allows organisms to adjust their phenotypes to environmental heterogeneity. Defensive responses to predation risk exemplify such plasticity, which, in the case of amphibian larvae, can involve changes in morphology, behaviour, physiology and life histories. These defences are hypothesized to be mediated by the glucocorticoid hormone corticosterone (CORT), but empirical support across species is inconsistent. We experimentally tested the generality of CORT involvement in predator-induced plasticity across larvae from 12 phylogenetically distant anuran genera, exposing them to either predation cues or different concentrations of exogenous CORT and comparing their responses. We measured changes in morphology, activity and life-history traits and quantified endogenous CORT levels. Species showed pronounced interspecific variation in morphological and behavioural plasticity. Perceived predation risk did not consistently elevate endogenous CORT concentrations across species. Moreover, predator-induced changes in body shape were generally distinct from, and even opposite to those elicited by exogenous CORT, indicating that CORT is not a direct regulator of anti-predator defences in amphibian larvae. Nonetheless, we found evidence for an indirect association between CORT and antipredator responses such that species with higher baseline CORT levels tend to have faster developmental rates, greater CORT response to predation cues but reduced morphological responses and vice versa.","PeriodicalId":520757,"journal":{"name":"Proceedings. Biological sciences","volume":"293 2081","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149291868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cumulative thermal stress predicts functional change in coral reef fish communities. 累积热应力预测珊瑚礁鱼类群落的功能变化。

IF 3.5

Proceedings. Biological sciences Pub Date : 2026-10-28 DOI: 10.1098/rspb.2026.1955

Anthony C Markey, Damien A Fordham, Rick D Stuart-Smith, Graham J Edgar, Christopher J Brown, Camille Mellin

{"title":"Cumulative thermal stress predicts functional change in coral reef fish communities.","authors":"Anthony C Markey, Damien A Fordham, Rick D Stuart-Smith, Graham J Edgar, Christopher J Brown, Camille Mellin","doi":"10.1098/rspb.2026.1955","DOIUrl":"https://doi.org/10.1098/rspb.2026.1955","url":null,"abstract":"Marine heatwaves are altering coral reef fish communities through a combination of direct impacts of thermal stress and indirect impacts that degrade coral habitats. Impacts may vary for species in different functional groups (e.g. herbivore replacement of corallivores), altering the functional composition of fish communities that is critical to reef resilience. However, our understanding of trait-based responses of fish communities to marine heatwaves is inadequate, and mostly inferred from local scales and low numbers of species. Here, we use a Bayesian joint species distribution model based on data for 500 fish species from 286 sites surveyed across northern Australia to evaluate the impacts of marine heatwaves on species probability of occurrence and their interactions with four functional traits. The effects of degree heating weeks and coral loss on individual species probability of occurrence had the highest total and proportionally negative responses, respectively. Thermal affinity's positive response to cumulative heat stress (i.e. degree heating weeks) was the strongest trait effect. Community-level analyses predicted losses in habitat specialists, large-bodied fishes, corallivores and pelagic feeders along a gradient of marine heatwave stress. The loss and restructuring of functional diversity suggest that heatwaves will continue eroding fish-dependent ecological roles and associated ecosystem services.","PeriodicalId":520757,"journal":{"name":"Proceedings. Biological sciences","volume":"293 2081","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149291754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fragmented social networks promote complex behavioural contagions over infectious disease spread. 支离破碎的社会网络促进了复杂的行为传染，而不是传染病的传播。

IF 3.5

Proceedings. Biological sciences Pub Date : 2026-10-28 DOI: 10.1098/rspb.2026.1424

Nitara Wijayatilake, Shweta Bansal, Amy B Pedersen, Matthew J Silk

{"title":"Fragmented social networks promote complex behavioural contagions over infectious disease spread.","authors":"Nitara Wijayatilake, Shweta Bansal, Amy B Pedersen, Matthew J Silk","doi":"10.1098/rspb.2026.1424","DOIUrl":"https://doi.org/10.1098/rspb.2026.1424","url":null,"abstract":"Group living and social interactions among animals provide key benefits, such as the exchange of beneficial social information and novel behaviours, but also often pose the risk of spreading costly infectious diseases, presenting a social trade-off. While both behaviours and infections spread across social networks, they typically have distinct mechanisms of transmission. Here, we model social behaviour spread as a complex contagion governed by a conformist learning rule, while pathogen transmission follows a simple contagion mechanism. Building on theoretical foundations, our study applies computational models to examine how (sub)group structure (modularity) influences the spread of these contagions across diverse animal social structures sourced from the Animal Social Network Repository. Our findings reveal that high modularity and (sub)group structure slow simple contagion spread, whereas complex contagions are less impeded by this fragmentation but with a relatively small effect size compared with theoretical predictions. Consequently, our results suggest that social networks divided into small groups or subgroups can help balance the competing pressures of exploiting beneficial social information and avoiding infectious disease in real-world networks.","PeriodicalId":520757,"journal":{"name":"Proceedings. Biological sciences","volume":"293 2081","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149291892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction to: 'Imputation of body mass' (2021) by Turvey et al. 更正：Turvey等人的“体重估算”（2021年）。

IF 3.5

Proceedings. Biological sciences Pub Date : 2026-10-28 DOI: 10.1098/rspb.2026.2193

Samuel T Turvey, Clare Duncan, Nathan Upham, Xavier A Harrison, Liliana M Dávalos

引用次数: 0

Climate state controls the strength of the latitudinal diversity gradient. 气候状态控制着纬向多样性梯度的强弱。

IF 3.5

Proceedings. Biological sciences Pub Date : 2026-10-28 DOI: 10.1098/rspb.2026.1490

Die Wen, Lewis A Jones, Junxuan Fan, Philip D Mannion

{"title":"Climate state controls the strength of the latitudinal diversity gradient.","authors":"Die Wen, Lewis A Jones, Junxuan Fan, Philip D Mannion","doi":"10.1098/rspb.2026.1490","DOIUrl":"https://doi.org/10.1098/rspb.2026.1490","url":null,"abstract":"The latitudinal diversity gradient (LDG)-a decline in taxonomic richness from the Equator to the poles-is a fundamental biogeographic pattern on Earth today, yet its primary regulators remain debated. Whereas many of the proposed climatic and environmental drivers covary with latitude in the present day, these variables have fluctuated substantially over millions of years. The fossil record therefore offers a unique perspective on the response of diversity and, by extension, the LDG, to global climatic change. We test the hypothesis that Earth's long-term climate state controls LDG strength, determining the conditions under which steep, 'modern-type' gradients with low-latitude-centred diversity peaks emerge. By analysing sampling-standardized marine invertebrate diversity across the past 500 million years, we reveal a systematic link: 'modern-type' LDGs typically prevail during coldhouse-coolhouse intervals, whereas flattened LDGs or temperate diversity peaks occur predominantly within transitional, warmhouse and hothouse climates. This robust phenomenon demonstrates that long-term climate exerts a primary control on global biodiversity patterns, whereas palaeogeography, including the distribution of shallow-marine habitat and continental configuration, modulates the regional expression of the LDG, including hemispheric variation. As anthropogenic warming pushes Earth towards hothouse conditions, our results offer a critical geohistorical perspective on the impending restructuring of global biodiversity.","PeriodicalId":520757,"journal":{"name":"Proceedings. Biological sciences","volume":"293 2081","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149291787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Artificial light at night alters the relative dominance of invasive plants in a nutrient-dependent manner across native species richness levels. 夜间人造光以营养依赖的方式改变了入侵植物在本地物种丰富度水平上的相对优势。

IF 3.5

Proceedings. Biological sciences Pub Date : 2026-10-28 DOI: 10.1098/rspb.2026.0507

Haobin Zhang, Ayub M O Oduor, Lu Xiao, Yanjie Liu

{"title":"Artificial light at night alters the relative dominance of invasive plants in a nutrient-dependent manner across native species richness levels.","authors":"Haobin Zhang, Ayub M O Oduor, Lu Xiao, Yanjie Liu","doi":"10.1098/rspb.2026.0507","DOIUrl":"https://doi.org/10.1098/rspb.2026.0507","url":null,"abstract":"Non-native plant invasions pose a global challenge, yet how nutrient enrichment and artificial light at night (ALAN) interact with native-community species richness to shape invasive-plant performance and community-level dominance remains unclear. We conducted a multispecies greenhouse experiment in which target invasive species and native communities were established simultaneously under fully crossed factorial combinations of ALAN (No-ALAN or ALAN), nutrient enrichment (low or high) and native species richness (two, four or eight species). We quantified target invasive-plant above-ground biomass, flowering probability and proportional above-ground biomass, as well as native-community and total-community above-ground biomass. Nutrient enrichment increased invader above-ground biomass by 272.88%, flowering probability by 30.39% and native-community above-ground biomass by 97.58%, although its effect on proportional invader biomass remained uncertain. ALAN did not clearly affect invader biomass or flowering but increased its proportional biomass under high-nutrient conditions by 5.74% and reduced it under low nutrients by 4.75%. Native species richness showed no clear effects on invader performance, community biomass or responses to ALAN and nutrients. Within this experimental context, invasive-plant performance was driven primarily by nutrient enrichment, with ALAN facilitating invader dominance under high-nutrient conditions, indicating that invasion outcomes were more influenced by resource availability than by native-community species richness.","PeriodicalId":520757,"journal":{"name":"Proceedings. Biological sciences","volume":"293 2081","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149291814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hybrid species evolution between cryptic and sympatric weevil species. 隐象甲与同域象甲杂交物种的进化。

IF 3.5

Proceedings. Biological sciences Pub Date : 2026-10-28 DOI: 10.1098/rspb.2026.1745

Víctor Noguerales, Marius H Eisele, Sophia L Gray, Sean Stankowski, Brent C Emerson

{"title":"Hybrid species evolution between cryptic and sympatric weevil species.","authors":"Víctor Noguerales, Marius H Eisele, Sophia L Gray, Sean Stankowski, Brent C Emerson","doi":"10.1098/rspb.2026.1745","DOIUrl":"https://doi.org/10.1098/rspb.2026.1745","url":null,"abstract":"Hybridization may generate a variety of evolutionary outcomes, including novel hybrid species without a change in ploidy. Within this process, referred to as homoploid hybrid speciation (HHS), selection on recombinant traits is often invoked as the driver of reproductive isolation (RI) between hybrid and parental species. However, our understanding of the temporal, geographical and phenotypic dimensions within which hybrid populations evolve RI against parental species is still limited. Here, we describe speciation following hybridization within a beetle species complex that presents no obvious phenotypical or ecological differences among hybrid and parental species, and where all occur sympatrically. Demographic modelling supports hybrid species origin, where the hybrid lineage originated from historical admixture between parental lineages. Genome-wide estimates of heterozygosity and individual-based simulations of hybrid species origin provide further support for an ancient, rather than recent origin of the hybrid species. We use geographical patterns of genomic relatedness between hybrids and parentals to identify the probable origin of the hybrid species within a hybrid swarm that was geographically isolated from both parental species. We then discuss our results within the context of HHS theory to highlight predictions for an HHS origin that can be tested when an appropriate reference genome becomes available.","PeriodicalId":520757,"journal":{"name":"Proceedings. Biological sciences","volume":"293 2081","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149291858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Season-dependent trait-environment filtering influences interaction networks in mixed-species bird flocks. 季节依赖的性状-环境过滤影响混种鸟群的相互作用网络。

IF 3.5

Proceedings. Biological sciences Pub Date : 2026-10-28 DOI: 10.1098/rspb.2026.1365

Yong Shen, Zufei Shu, Yingming Zhang, Sergio Estrada-Villegas, Eben B Goodale, Frederick H Sheldon, Qing Quan, Fasheng Zou, Fuchen Luan, Hairong Tan, Qiang Zhang

{"title":"Season-dependent trait-environment filtering influences interaction networks in mixed-species bird flocks.","authors":"Yong Shen, Zufei Shu, Yingming Zhang, Sergio Estrada-Villegas, Eben B Goodale, Frederick H Sheldon, Qing Quan, Fasheng Zou, Fuchen Luan, Hairong Tan, Qiang Zhang","doi":"10.1098/rspb.2026.1365","DOIUrl":"https://doi.org/10.1098/rspb.2026.1365","url":null,"abstract":"Seasonal variation can strongly influence species interactions, yet its effects on interaction networks remain poorly understood in tropical and subtropical systems. We surveyed mixed-species bird flocks (MSFs) across 20 2 × 2 km grid cells in a subtropical forest in southern China during breeding and non-breeding seasons, quantified seasonal changes in flock composition and network structure, and examined how species traits and environmental factors drive these changes. More species and individuals joined mixed-species bird flocks in the non-breeding season, producing more connected and cohesive networks. During the breeding season, network structure was associated with breeding traits: species with larger clutch sizes showed higher association strength, but overall network connectivity and cohesion declined, suggesting trade-offs imposed by parental care. Network structure in the non-breeding season was related to morphological traits, with smaller species forming more cohesive networks. Environmental effects were also season dependent. Connectivity increased with elevation, forest cover and canopy cover in the breeding season, whereas in the non-breeding season networks were most connected and cohesive at low elevations with high tree species richness and vegetation productivity. Our results demonstrate the importance of seasonal effects on mixed-species bird flocks and highlight the need to maintain mountain connectivity, as communities may rely on different parts of mountains across seasons.","PeriodicalId":520757,"journal":{"name":"Proceedings. Biological sciences","volume":"293 2081","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149291870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0