Proceedings of the Royal Society B: Biological Sciences最新文献_第2页

Competition on a neutral playing field: invaders still win and size still matters… sometimes.

IF 3.8 1区生物学

Proceedings of the Royal Society B: Biological Sciences Pub Date : 2025-03-01 Epub Date: 2025-03-26 DOI: 10.1098/rspb.2025.0087

Wenbo Luo, Huixuan Liao, Ragan Callaway, Robert W Pal

{"title":"Competition on a neutral playing field: invaders still win and size still matters… sometimes.","authors":"Wenbo Luo, Huixuan Liao, Ragan Callaway, Robert W Pal","doi":"10.1098/rspb.2025.0087","DOIUrl":"10.1098/rspb.2025.0087","url":null,"abstract":"Exotic invasive plant species commonly outcompete native species. However, a great deal of the evidence for this comes from experiments conducted on an uneven playing field-in substrates containing soil biota from the non-native ranges of the exotics, which should give them a competitive advantage. In competition experiments with nine pairs of non-native invasive versus native species in neutral substrates composed of sterilized soil, we found that the competitive effect of invasive species on natives was approximately five times greater than the reverse, and gram-per-gram competitive effects of invasives on natives were almost two times that of the natives on invasives. The effect of plant size on competitive outcomes was complex. The size of invasive species correlated with their effects on natives but not with their tolerance to competition from natives. The size of natives was not correlated with either aspect of competitive ability. This is important since the tolerance of invaders to competition from natives is thought to be essential for successful invasion. Our results also suggest that assumptions about size-based evidence for the evolution of competitive ability in non-native ranges is reasonable, and that even without the advantage gained from escaping soil biota, invaders still win.","PeriodicalId":20589,"journal":{"name":"Proceedings of the Royal Society B: Biological Sciences","volume":"292 2043","pages":"20250087"},"PeriodicalIF":3.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11936679/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143711057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Heat stress effects on offspring compound across parental care.

IF 3.8 1区生物学

Proceedings of the Royal Society B: Biological Sciences Pub Date : 2025-03-01 Epub Date: 2025-03-05 DOI: 10.1098/rspb.2025.0026

Tanzil Gaffar Malik, Mu-Tzu Tsai, Benjamin James Mervyn Jarrett, Syuan-Jyun Sun

{"title":"Heat stress effects on offspring compound across parental care.","authors":"Tanzil Gaffar Malik, Mu-Tzu Tsai, Benjamin James Mervyn Jarrett, Syuan-Jyun Sun","doi":"10.1098/rspb.2025.0026","DOIUrl":"10.1098/rspb.2025.0026","url":null,"abstract":"Heatwaves associated with climate change threaten biodiversity by disrupting behaviours like parental care. While parental care may buffer populations from adverse environments, studies show mixed results, possibly due to heat stress affecting different care components. We investigated how heat stress impacts parental care and offspring performance in the burying beetle Nicrophorus nepalensis under control (17.8°C) and heat stress (21.8°C) conditions. We focused on two critical periods: pre-hatching care (carcass preparation) and post-hatching care (offspring provisioning). To disentangle the vulnerability of these parental care components to heat stress, we reciprocally transferred carcasses prepared under control or heat stress to females breeding under both conditions. Heatwaves affecting only one care period did not alter reproduction, but when both pre- and post-hatching periods experienced heatwaves, reproductive success declined. Females exhibited higher energy expenditure during provisioning, evidenced by greater body mass loss. Notably, heat stress had long-lasting effects on offspring via carcass preparation, resulting in smaller adult size and higher mortality. These results highlight the complexity of environmental stressors on parental care, suggesting that different care components may respond differently to heat stress, and thus need to be examined separately to better understand how parental care responds to, and buffers against, temperature stress.","PeriodicalId":20589,"journal":{"name":"Proceedings of the Royal Society B: Biological Sciences","volume":"292 2042","pages":"20250026"},"PeriodicalIF":3.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11881022/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143557816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Crusaders, monks and family fortunes: evolutionary models of male homosexuality and related phenomena. 十字军、僧侣和家庭财富：男性同性恋及相关现象的进化模式。

IF 3.8 1区生物学

Proceedings of the Royal Society B: Biological Sciences Pub Date : 2025-03-01 Epub Date: 2025-03-05 DOI: 10.1098/rspb.2024.2756

Petr Tureček, Jakub Fořt, Jaroslav Flegr

{"title":"Crusaders, monks and family fortunes: evolutionary models of male homosexuality and related phenomena.","authors":"Petr Tureček, Jakub Fořt, Jaroslav Flegr","doi":"10.1098/rspb.2024.2756","DOIUrl":"10.1098/rspb.2024.2756","url":null,"abstract":"The fraternal birth order effect (FBOE) is a well documented preponderance of older brothers among gay men. Until now, it has lacked a proper formal treatment in light of evolutionary theory. In this article, we propose two related mathematical models based on the rigorous application of the inclusive fitness concept. The models examine sibling rivalry and resource allocation within families. One of the models assumes that the laterborn's reproductive ability is not compromised by the manipulation that leads to the exclusive allocation of family resources to the firstborn. The other model posits that this manipulation may lower the laterborn's direct fitness to zero. Both models suggest that the FBOE arises primarily from the older brother's manipulation, as the firstborn's inclusive fitness may increase, while the mother's decreases, but not vice versa. However, under certain conditions, the mother should support an activity that discourages division of family resources, and in extreme cases, the younger brother's homosexuality may be the best available reproductive strategy for his genes. The models also provide insight into the cultural evolution of primogeniture and explain how manipulation between relatives could evolve before the emergence of substantial economic inequality.","PeriodicalId":20589,"journal":{"name":"Proceedings of the Royal Society B: Biological Sciences","volume":"292 2042","pages":"20242756"},"PeriodicalIF":3.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11880841/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143557811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Development and patterning of a highly versatile visual system in spiders.

IF 3.8 1区生物学

Proceedings of the Royal Society B: Biological Sciences Pub Date : 2025-03-01 Epub Date: 2025-03-12 DOI: 10.1098/rspb.2024.2069

Luis Baudouin Gonzalez, Anna Schönauer, Amber Harper, Saad Arif, Daniel J Leite, Philip O M Steinhoff, Matthias Pechmann, Valeriia Telizhenko, Atal Pande, Zoe X Schultz, Carolin Kosiol, Madeleine Aase-Remedios, Lauren Sumner-Rooney, Alistair P McGregor

{"title":"Development and patterning of a highly versatile visual system in spiders.","authors":"Luis Baudouin Gonzalez, Anna Schönauer, Amber Harper, Saad Arif, Daniel J Leite, Philip O M Steinhoff, Matthias Pechmann, Valeriia Telizhenko, Atal Pande, Zoe X Schultz, Carolin Kosiol, Madeleine Aase-Remedios, Lauren Sumner-Rooney, Alistair P McGregor","doi":"10.1098/rspb.2024.2069","DOIUrl":"10.1098/rspb.2024.2069","url":null,"abstract":"Visual systems provide a key interface between organisms and their surroundings, and have evolved in many forms to perform diverse functions across the animal kingdom. Spiders exhibit a range of visual abilities and ecologies, the diversity of which is underpinned by a highly versatile, modular visual system architecture. This typically includes eight eyes of two developmentally distinct types, but the number, size, location and function of the eyes can vary dramatically between lineages. Previous studies of visual system development in spiders have confirmed that many components of the retinal determination gene (RDG) network are conserved with other arthropods, but so far, comparative studies among spiders are lacking. We characterized visual system development in seven species of spiders representing a range of morphologies, visual ecologies and phylogenetic positions, to determine how these diverse configurations are formed, and how they might evolve. Combining transcriptomics, in situ hybridization, and selection analyses, we characterize the repertoires and expression of key RDGs in relation to adult morphology. We identify key molecular players, timepoints and developmental events that may contribute to adult diversity, in particular the molecular and developmental underpinnings of eye size, number, position and identity across spiders.","PeriodicalId":20589,"journal":{"name":"Proceedings of the Royal Society B: Biological Sciences","volume":"292 2042","pages":"20242069"},"PeriodicalIF":3.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11896711/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143606049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

The Salient Aroma Hypothesis: host plant specialization is linked with plant volatile availability in Lepidoptera.

IF 3.8 1区生物学

Proceedings of the Royal Society B: Biological Sciences Pub Date : 2025-03-01 Epub Date: 2025-03-12 DOI: 10.1098/rspb.2024.2426

Po-An Lin, Wei-Ping Chan, Liming Cai, Yun Hsiao, Even Dankowicz, Kadeem J Gilbert, Naomi E Pierce, Gary Felton

{"title":"The Salient Aroma Hypothesis: host plant specialization is linked with plant volatile availability in Lepidoptera.","authors":"Po-An Lin, Wei-Ping Chan, Liming Cai, Yun Hsiao, Even Dankowicz, Kadeem J Gilbert, Naomi E Pierce, Gary Felton","doi":"10.1098/rspb.2024.2426","DOIUrl":"10.1098/rspb.2024.2426","url":null,"abstract":"Host plant use in Lepidoptera has been a primary focus in studies of ecological specialization, and multiple factors are likely to be involved in shaping the evolution of diet breadth. Here, we first describe the Salient Aroma Hypothesis, suggesting that the availability of chemical information, particularly host-associated aromas, plays a critical role in shaping dietary specialization. According to the Salient Aroma Hypothesis, herbivores active during periods when chemical information is abundant, particularly during the daytime hours when plant aromas are hypothesized to be more prevalent, are more likely to evolve specialized diets. First, with meta-analysis, we show that plants release more diverse and abundant volatile compounds during daylight hours, increasing the availability of chemical information. We found that diurnal Lepidoptera tend to have specialized diets, while nocturnal species are more generalized, consistent with the prediction of the Salient Aroma Hypothesis. We further observed that morphological differences in the antennae of female Lepidoptera are correlated with variation in diet breadth and diel activity patterns, indirectly supporting the Salient Aroma Hypothesis. While multiple factors influence host plant specialization, the Salient Aroma Hypothesis offers a useful framework linking chemical information availability (e.g. plant volatiles) and ecological specialization.","PeriodicalId":20589,"journal":{"name":"Proceedings of the Royal Society B: Biological Sciences","volume":"292 2042","pages":"20242426"},"PeriodicalIF":3.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11896709/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143606055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Mechanisms of social behaviour in the anti-social blind cavefish (Astyanax mexicanus).

IF 3.8 1区生物学

Proceedings of the Royal Society B: Biological Sciences Pub Date : 2025-03-01 Epub Date: 2025-03-26 DOI: 10.1098/rspb.2025.0052

Britney Sekulovski, Noam Miller

{"title":"Mechanisms of social behaviour in the anti-social blind cavefish (Astyanax mexicanus).","authors":"Britney Sekulovski, Noam Miller","doi":"10.1098/rspb.2025.0052","DOIUrl":"10.1098/rspb.2025.0052","url":null,"abstract":"The evolution of social behaviour in Astyanax mexicanus, which exists as a sighted, surface-dwelling morph and a blind, cave-dwelling morph, provides a model for understanding how environmental pressures shape social behaviours. We compared the shoaling behaviour of blind and surface A. mexicanus to that of zebrafish (Danio rerio), and examined the effects of nutritional state and the neuropeptides isotocin (IT) and arginine vasotocin (AVT) on their social behaviour. Blind cavefish not only fail to form shoals, but actively avoid conspecifics, with hunger further diminishing their social cohesion. Administration of low doses of AVT and an IT antagonist partially restored social behaviour in blind cavefish, reducing distances between individuals, whereas surface fish exhibited minimal or opposite responses to these hormonal manipulations. Our findings suggest that the loss of shoaling behaviour in blind cavefish is not a consequence of visual impairment alone, as they remain capable of detecting and responding to others. Instead, this behaviour probably reflects an adaptive response to their resource-poor, predator-free cave environment, where shoaling may be disadvantageous. The differing responses to nonapeptides between the morphs indicate that blind cavefish may have lost the motivation to shoal rather than the ability, highlighting how ecological pressures can shape social behaviour.","PeriodicalId":20589,"journal":{"name":"Proceedings of the Royal Society B: Biological Sciences","volume":"292 2043","pages":"20250052"},"PeriodicalIF":3.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11936682/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143711105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Sex-specific effects of early-life adversity on adult fitness in a wild mammal.

IF 3.8 1区生物学

Proceedings of the Royal Society B: Biological Sciences Pub Date : 2025-03-01 Epub Date: 2025-03-26 DOI: 10.1098/rspb.2025.0192

Elizabeth D Drake, Sanjana Ravindran, Xavier Bal, Josephine M Pemberton, Jill G Pilkington, Daniel H Nussey, Hannah Froy

{"title":"Sex-specific effects of early-life adversity on adult fitness in a wild mammal.","authors":"Elizabeth D Drake, Sanjana Ravindran, Xavier Bal, Josephine M Pemberton, Jill G Pilkington, Daniel H Nussey, Hannah Froy","doi":"10.1098/rspb.2025.0192","DOIUrl":"10.1098/rspb.2025.0192","url":null,"abstract":"Early-life adversity influences adult fitness across vertebrate species. In polygynous systems with intense intrasexual competition, males may be more sensitive to conditions experienced during development. However, the importance of different aspects of the early-life environment and how their effects differ between the sexes remains poorly understood. Here, we used a long-term study of wild Soay sheep to characterize the early-life environment in terms of weather, infection risk, resource competition and maternal investment, and test the hypothesis that males are more vulnerable to early adversity. Birth weight, reflective of maternal investment and conditions during gestation, positively predicted lifetime breeding success in both sexes, suggesting a classic 'silver spoon' effect, though the effects were stronger in males. Males that experienced increased resource competition in their first year had lower lifetime breeding success, suggesting lasting negative consequences of nutritional stress, but there was no association in females. By contrast, challenging weather in the first winter of life was associated with stronger viability selection, with males surviving these harsh conditions having higher adult fitness. Our findings further evidence the important long-term fitness consequences of early-life adversity in wild vertebrates, demonstrating distinct aspects of the early environment may shape fitness in different and sex-specific ways.","PeriodicalId":20589,"journal":{"name":"Proceedings of the Royal Society B: Biological Sciences","volume":"292 2043","pages":"20250192"},"PeriodicalIF":3.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11936677/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143711109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Asymmetrical evolution of cross inhibition in zooplankton: insights from contrasting phosphorus limitation and salinization exposure sequences. 浮游动物交叉抑制的非对称进化：从磷限制和盐渍化暴露序列的对比中获得启示。

IF 3.8 1区生物学

Proceedings of the Royal Society B: Biological Sciences Pub Date : 2025-03-01 Epub Date: 2025-03-05 DOI: 10.1098/rspb.2024.3064

Libin Zhou, Kimberley D Lemmen, Shuaiying Zhao, Steven A J Declerck

{"title":"Asymmetrical evolution of cross inhibition in zooplankton: insights from contrasting phosphorus limitation and salinization exposure sequences.","authors":"Libin Zhou, Kimberley D Lemmen, Shuaiying Zhao, Steven A J Declerck","doi":"10.1098/rspb.2024.3064","DOIUrl":"10.1098/rspb.2024.3064","url":null,"abstract":"Understanding the evolutionary responses of organisms to multiple stressors is crucial for predicting the ecological consequences of intensified anthropogenic activities. While previous studies have documented the effects of selection history on organisms' abilities to cope with new stressors, the impact of the sequence in which stressors occur on evolutionary outcomes remains less understood. In this study, we examined the evolutionary responses of a metazoan rotifer species to two prevalent freshwater stressors: nutrient limitation and increased salinization. We subjected rotifer populations with distinct selection histories (salt-adapted, low phosphorus-adapted and ancestral clones) to a reciprocal common garden experiment and monitored their population growth rates. Our results revealed an asymmetric evolutionary response to phosphorus (P) limitation and increased salinity. Specifically, adaptation to low P conditions reduced rotifer tolerance to increased salinity, whereas adaptation to saline conditions did not show such cross-inhibitory effects. Instead, the addition of moderate concentrations of salt enhanced the growth of the salt-adapted population in low P conditions, potentially as a consequence of evolved cross-tolerance. Our findings, therefore, underscore the importance of considering historical stressor regimes to improve our understanding and predictions of organismal responses to multiple stressors and also have significant implications for ecosystem management.","PeriodicalId":20589,"journal":{"name":"Proceedings of the Royal Society B: Biological Sciences","volume":"292 2042","pages":"20243064"},"PeriodicalIF":3.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11881020/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143557804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Increased female competition for males with enhanced foraging skills in Guinea baboons.

IF 3.8 1区生物学

Proceedings of the Royal Society B: Biological Sciences Pub Date : 2025-03-01 Epub Date: 2025-03-05 DOI: 10.1098/rspb.2024.2925

William John O'Hearn, Jörg Beckmann, Lorenzo Von Fersen, Federica Dal Pesco, Roger Mundry, Stefanie Keupp, Ndiouga Diakhate, Carolin Niederbremer, Julia Fischer

{"title":"Increased female competition for males with enhanced foraging skills in Guinea baboons.","authors":"William John O'Hearn, Jörg Beckmann, Lorenzo Von Fersen, Federica Dal Pesco, Roger Mundry, Stefanie Keupp, Ndiouga Diakhate, Carolin Niederbremer, Julia Fischer","doi":"10.1098/rspb.2024.2925","DOIUrl":"10.1098/rspb.2024.2925","url":null,"abstract":"Recognizing skilful group members is crucial for making optimal social choices. Whether and how nonhuman animals attribute skill to others is still debated. Using a lever-operated food box, we enhanced the foraging skill of a single male (the specialist) in one zoo-housed and two wild groups of Guinea baboon (Papio papio). We measured group members' behavioural responses before, during and after our manipulation to reveal whether they focused on the outcome of the male's actions or changed their assessment of his long-term value. During the manipulation, females in the specialist's unit, but not the wider group, competed over access to the specialist-increasing their grooming of him 10-fold and aggression near him fourfold. Both behaviours were predicted by the amount each female ate from the food box and returned to baseline within 2 weeks of its removal. This behavioural pattern supports an outcome-based assessment where females responded to male-provided benefits (utility) rather than attributing competence (value). By contrast, males from the wider party ate prodigiously from the reward but did not change their behaviour towards the specialist at all-revealing different social strategies corresponding to the social stratification of the Guinea baboon's multi-level society.","PeriodicalId":20589,"journal":{"name":"Proceedings of the Royal Society B: Biological Sciences","volume":"292 2042","pages":"20242925"},"PeriodicalIF":3.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11880840/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143557820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Time-lagged genomic erosion and future environmental risks in a bird on the brink of extinction.

IF 3.8 1区生物学

Proceedings of the Royal Society B: Biological Sciences Pub Date : 2025-03-01 Epub Date: 2025-03-26 DOI: 10.1098/rspb.2024.2480

Xufen Liu, Ester Milesi, Claudia Fontsere, Hannah L Owens, Robert Heinsohn, M Thomas P Gilbert, Ross Crates, David Nogués-Bravo, Hernán E Morales

{"title":"Time-lagged genomic erosion and future environmental risks in a bird on the brink of extinction.","authors":"Xufen Liu, Ester Milesi, Claudia Fontsere, Hannah L Owens, Robert Heinsohn, M Thomas P Gilbert, Ross Crates, David Nogués-Bravo, Hernán E Morales","doi":"10.1098/rspb.2024.2480","DOIUrl":"10.1098/rspb.2024.2480","url":null,"abstract":"Global biodiversity is rapidly declining due to habitat degradation and genomic erosion, highlighting the urgent need to monitor endangered species and their genetic health. Temporal genomics and ecological modelling offer finer resolution than single-time-point measurements, providing a comprehensive view of species' recent and future trajectories. We investigated genomic erosion and environmental suitability in the critically endangered regent honeyeater (Anthochaera phrygia) by sequencing whole genomes of historical and modern specimens and building multi-temporal species distribution models (SDMs) across the last century. The species has declined from hundreds of thousands of individuals to fewer than 300 over the past 100 years. SDMs correctly predicted known patterns of local extinction in southeast Australia. Our demographic reconstructions revealed a gradual population decline from 2000 to 2500 years ago, sharply accelerating in the last 500 years due to climate variability and habitat loss. Despite this substantial demographic collapse, the regent honeyeater has lost only 9% of its genetic diversity, with no evidence of inbreeding or connectivity loss. Also, it exhibits higher diversity than many other threatened bird species. Forward-in-time genomic simulations indicate that this time lag between population decline and genetic diversity loss conceals the risk of ongoing genomic erosion into a future of rapidly degrading environmental suitability. Our work underscores the need for targeted conservation efforts and continuous genetic monitoring to prevent species extinction.","PeriodicalId":20589,"journal":{"name":"Proceedings of the Royal Society B: Biological Sciences","volume":"292 2043","pages":"20242480"},"PeriodicalIF":3.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11936686/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143711097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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