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

Parasite spillover rather than niche expansion explains infection of host brain by diplostomid eye flukes.

IF 3.8 1区生物学

Proceedings of the Royal Society B: Biological Sciences Pub Date : 2025-02-01 Epub Date: 2025-02-05 DOI: 10.1098/rspb.2024.2648

Alfonso Diaz-Suarez, Veljo Kisand, Siim Kahar, Riho Gross, Anti Vasemägi, Kristina Noreikiene

{"title":"Parasite spillover rather than niche expansion explains infection of host brain by diplostomid eye flukes.","authors":"Alfonso Diaz-Suarez, Veljo Kisand, Siim Kahar, Riho Gross, Anti Vasemägi, Kristina Noreikiene","doi":"10.1098/rspb.2024.2648","DOIUrl":"10.1098/rspb.2024.2648","url":null,"abstract":"Parasites often occupy specific sites within their host, which has important implications for host performance and parasite transmission. Nonetheless, parasitic infections can occur beyond their typical location within a host, significantly altering host-parasite interactions. Yet, the causes behind the atypical tissue tropism are poorly understood. Here, we focus on a ubiquitous group of diplostomid parasites that form diverse communities in fish eyes. We used targeted DNA metabarcoding (cytochrome c oxydase subunit 1, COX1, 250 bp) to evaluate potential mechanisms underlying eye parasite atypical tissue tropism to the brain of two widespread fish species (Eurasian perch and common roach). We found that the most common eye-infecting species (Tylodelphys clavata, Diplostomum baeri) are present in the brains of perch but not in roach. The bipartite network comprising 5 species and 24 mitochondrial haplotypes revealed no brain-specific haplotypes, indicating an apparent lack of genetic divergence between brain- and eye-infecting parasites. Instead, the prevalence, intensity and diversity of eye infections were positively correlated with brain infections. Thus, our results suggest that the most parsimonious mechanism underlying brain infection is density-dependent spillover rather than parasite divergence-driven niche expansion. We anticipate that 'off-target' infections are likely to be severely underestimated in nature with important ecological, evolutionary and medical implications.","PeriodicalId":20589,"journal":{"name":"Proceedings of the Royal Society B: Biological Sciences","volume":"292 2040","pages":"20242648"},"PeriodicalIF":3.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11793966/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143189696","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

Poverty is associated with both risk avoidance and risk taking: empirical evidence for the desperation threshold model from the UK and France.

IF 3.8 1区生物学

Proceedings of the Royal Society B: Biological Sciences Pub Date : 2025-02-01 Epub Date: 2025-02-05 DOI: 10.1098/rspb.2024.2071

Benoît de Courson, Willem E Frankenhuis, Daniel Nettle

{"title":"Poverty is associated with both risk avoidance and risk taking: empirical evidence for the desperation threshold model from the UK and France.","authors":"Benoît de Courson, Willem E Frankenhuis, Daniel Nettle","doi":"10.1098/rspb.2024.2071","DOIUrl":"10.1098/rspb.2024.2071","url":null,"abstract":"In situations of poverty, do people take more or less risk? One hypothesis states that poverty makes people avoid risk, because they cannot buffer against losses, while another states that poverty makes people take risks, because they have little to lose. Each hypothesis has some previous empirical support. Here, we test the 'desperation threshold' model, which integrates both hypotheses. We assume that people attempt to stay above a critical level of resources, representing their 'basic needs'. Just above this threshold, people have much to lose and should avoid risk. Below, they have little to lose and should take risks. We conducted preregistered tests of the model using survey data from 472 adults in France and the UK. The predictor variables were subjective and objective measures of current resources. The outcome measure, risk taking, was measured using a series of hypothetical gambles. Risk taking followed a V-shape against subjective resources, first decreasing and then increasing again as resources reduced. This pattern was not observed for the objective resource measure. We also found that risk taking was more variable among people with fewer resources. Our findings synthesize the split literature on poverty and risk taking, with implications for policy and interventions.","PeriodicalId":20589,"journal":{"name":"Proceedings of the Royal Society B: Biological Sciences","volume":"292 2040","pages":"20242071"},"PeriodicalIF":3.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11793957/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143189786","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

Cytoplasmic incompatibility factor proteins from Wolbachia prophage are costly to sperm development in Drosophila melanogaster.

IF 3.8 1区生物学

Proceedings of the Royal Society B: Biological Sciences Pub Date : 2025-02-01 Epub Date: 2025-02-12 DOI: 10.1098/rspb.2024.3016

Rupinder Kaur, Seth R Bordenstein

{"title":"Cytoplasmic incompatibility factor proteins from Wolbachia prophage are costly to sperm development in Drosophila melanogaster.","authors":"Rupinder Kaur, Seth R Bordenstein","doi":"10.1098/rspb.2024.3016","DOIUrl":"10.1098/rspb.2024.3016","url":null,"abstract":"The symbiosis between arthropods and Wolbachia bacteria is globally widespread, largely due to selfish-drive systems that favour the fitness of symbiont-transmitting females. The most common drive, cytoplasmic incompatibility (CI), is central to arboviral control efforts. In Drosophila melanogaster carrying wMel Wolbachia deployed in mosquito control, two prophage genes in Wolbachia, cifA and cifB, cause CI that results in a paternal-effect lethality of embryos in crosses between Wolbachia-bearing males and aposymbiotic females. While the CI mechanism by which Cif proteins alter sperm development has recently been elucidated in D. melanogaster and Aedes aegypti mosquitoes, the Cifs' extended impact on male reproductive fitness such as sperm morphology and quantity remains unclear. Here, using cytochemical, microscopic and transgenic assays in D. melanogaster, we demonstrate that both CifA and CifB cause a significant portion of defects in elongating spermatids, culminating in malformed mature sperm nuclei. Males expressing Cifs have reduced spermatid bundles and sperm counts, and transgenic expression of Cifs can occasionally result in no mature sperm formation. We reflect on Cifs' varied functional impacts on the Host Modification model of CI as well as host evolution, behaviour and vector control strategies.","PeriodicalId":20589,"journal":{"name":"Proceedings of the Royal Society B: Biological Sciences","volume":"292 2040","pages":"20243016"},"PeriodicalIF":3.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11813569/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143399802","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

Using mobile eye tracking to study dogs' understanding of human referential communication.

IF 3.8 1区生物学

Proceedings of the Royal Society B: Biological Sciences Pub Date : 2025-02-01 Epub Date: 2025-02-12 DOI: 10.1098/rspb.2024.2765

Christoph J Völter, Karoline Gerwisch, Paula Berg, Zsófia Virányi, Ludwig Huber

{"title":"Using mobile eye tracking to study dogs' understanding of human referential communication.","authors":"Christoph J Völter, Karoline Gerwisch, Paula Berg, Zsófia Virányi, Ludwig Huber","doi":"10.1098/rspb.2024.2765","DOIUrl":"10.1098/rspb.2024.2765","url":null,"abstract":"The extent to which dogs understand human referential communication is among the most studied questions in canine cognition research. While it is widely accepted that dogs follow (some) human referential signals, the way they understand them remains controversial. Here, we applied mobile eye tracking with dogs to investigate during real-world interactions how ostensive pointing and gaze cues direct dogs' visual attention and bias their subsequent choices in an object-choice task. We addressed the question of whether dogs would exhibit a greater response to referential communication compared with other directional cues. Five conditions were tested (pointing, pointing + gazing, gazing, fake throwing and no-cue control), each cue condition indicating the location of a hidden food reward. Results demonstrated that the combination of pointing and gazing significantly increased dogs' attention towards the designated referent. In pointing + gazing, dogs maintained longer attention on the referent compared with other conditions and they approached it significantly above chance levels. While the alternative cue (fake throwing) moved the dogs' gaze to the indicated direction, it did not increase the frequency of gaze shifts to the precise referent location. Our findings highlight that the joint use of pointing and gazing is a particularly effective method for directing dogs' attention to a referent.","PeriodicalId":20589,"journal":{"name":"Proceedings of the Royal Society B: Biological Sciences","volume":"292 2040","pages":"20242765"},"PeriodicalIF":3.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11813580/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143399811","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

Metabolic rate of angiosperm seeds: effects of allometry, phylogeny and bioclimate.

IF 3.8 1区生物学

Proceedings of the Royal Society B: Biological Sciences Pub Date : 2025-02-01 Epub Date: 2025-02-19 DOI: 10.1098/rspb.2024.2683

Emma L Dalziell, Sean Tomlinson, David J Merritt, Wolfgang Lewandrowski, Shane R Turner, Philip C Withers

{"title":"Metabolic rate of angiosperm seeds: effects of allometry, phylogeny and bioclimate.","authors":"Emma L Dalziell, Sean Tomlinson, David J Merritt, Wolfgang Lewandrowski, Shane R Turner, Philip C Withers","doi":"10.1098/rspb.2024.2683","DOIUrl":"https://doi.org/10.1098/rspb.2024.2683","url":null,"abstract":"Energetics is considered a fundamental 'currency' of ecology and the way that metabolic rate (MR)-the rate of energy expenditure on biological processes-scales relative to the size of the organism can be both an adaptive benefit and a constraint in mediating the energetic demands of ecological processes. Since few investigations have examined this relationship for angiosperm seeds, we measured standard metabolic rate (SMR) of 108 species' seeds, spanning a broad suite of species. We used fluorescence-based closed-system respirometry at temperatures between 18°C and 30°C, based on optimal germination conditions, and Q10 corrected to 20°C. The allometric relationship for SMR as a function of seed mass was 0.081 × M0.780 with ordinary least squares regression and 0.057 × M0.746 with phylogenetic generalized least squares regression. This relationship is consistent with the pervasive metabolic allometry documented for both vegetative plants and domesticated cultivars (n = 14) which had higher SMR residuals than wild species (seven weeds and 87 Australian native species). For native species, seed SMR was strongly related to measures of increasing environmental aridity (annual mean temperature and precipitation, and precipitation in the wettest quarter), consistent with seeds from arid environments having a high MR to supply energy needed to germinate rapidly. By comparing SMR of seeds for diverse angiosperm species, we provide insights into inter-relationships of physiology, distribution, climate and domestication on seed ecology and suggest that energetics represents a valuable addition to established functional trait libraries for seed biology.","PeriodicalId":20589,"journal":{"name":"Proceedings of the Royal Society B: Biological Sciences","volume":"292 2041","pages":"20242683"},"PeriodicalIF":3.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143449954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Repeated evolution of photoperiodic plasticity by different genetic architectures during recurrent colonizations in a butterfly.

IF 3.8 1区生物学

Proceedings of the Royal Society B: Biological Sciences Pub Date : 2025-02-01 Epub Date: 2025-02-12 DOI: 10.1098/rspb.2024.2195

Anna B Shoshan, Ugo Pindeler, Christopher W Wheat, Karl Gotthard

{"title":"Repeated evolution of photoperiodic plasticity by different genetic architectures during recurrent colonizations in a butterfly.","authors":"Anna B Shoshan, Ugo Pindeler, Christopher W Wheat, Karl Gotthard","doi":"10.1098/rspb.2024.2195","DOIUrl":"10.1098/rspb.2024.2195","url":null,"abstract":"In cases of recurrent colonizations of similar habitats from the same base population, it is commonly expected that repeated phenotypic adaptation is caused by parallel changes in genetic variation. However, it is becoming increasingly clear that similar phenotypic variation may also evolve by alternative genetic pathways. Here, we explore the repeated evolution of photoperiodic plasticity for diapause induction across Swedish populations of the speckled wood butterfly, Pararge aegeria. This species has colonized Scandinavia at least twice, and population genomic results show that one of the candidate regions associated with spatial variation in photoperiodism is situated on the Z-chromosome. Here, we assay hybrid crosses between several populations that differ in photoperiodic plasticity for sex-linked inheritance of the photoperiodic reaction norm. We find that while a cross between more distantly related populations from the two different colonization events shows strong sex-dependent inheritance of photoperiodic plasticity, a cross between two more closely related populations within the oldest colonization range shows no such effect. We conclude that the genotype-phenotype map for photoperiodic plasticity varies across these populations and that similar local phenotypic adaptation has evolved during recurrent colonization events by partly non-parallel genetic changes.","PeriodicalId":20589,"journal":{"name":"Proceedings of the Royal Society B: Biological Sciences","volume":"292 2040","pages":"20242195"},"PeriodicalIF":3.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11813577/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143399808","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

Touch inhibits cold: non-contact cooling suggests a thermotactile gating mechanism.

IF 3.8 1区生物学

Proceedings of the Royal Society B: Biological Sciences Pub Date : 2025-02-01 Epub Date: 2025-02-12 DOI: 10.1098/rspb.2024.3014

Ivan Ezquerra Romano, Maansib Chowdhury, Patrick Haggard

{"title":"Touch inhibits cold: non-contact cooling suggests a thermotactile gating mechanism.","authors":"Ivan Ezquerra Romano, Maansib Chowdhury, Patrick Haggard","doi":"10.1098/rspb.2024.3014","DOIUrl":"10.1098/rspb.2024.3014","url":null,"abstract":"Skin stimuli reach the brain via multiple neural channels specific for different stimulus types. These channels interact in the spinal cord, typically through inhibition. Inter-channel interactions can be investigated by selectively stimulating one channel and comparing the sensations that result when another sensory channel is or is not concurrently stimulated. Applying this logic to thermal-mechanical interactions proves difficult, because most existing thermal stimulators involve skin contact. We used a novel non-tactile stimulator for focal cooling (9 mm2) by using thermal imaging of skin temperature as a feedback signal to regulate exposure to a dry-ice source. We could then investigate how touch modulates cold sensation by delivering cooling to the human hand dorsum in either the presence or absence of light touch. Across three signal detection experiments, we found that sensitivity to cooling was significantly reduced by touch. This reduction was specific to touch, as it did not occur when presenting auditory signals instead of the tactile input, making explanations based on distraction or attention unlikely. Our findings suggest that touch inhibits cold perception, recalling interactions of touch and pain previously described by Pain Gate Theory.","PeriodicalId":20589,"journal":{"name":"Proceedings of the Royal Society B: Biological Sciences","volume":"292 2040","pages":"20243014"},"PeriodicalIF":3.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11813568/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143399810","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

Intraspecific divergence within Microcystis aeruginosa mediates the dynamics of freshwater harmful algal blooms under climate warming scenarios.

IF 3.8 1区生物学

Proceedings of the Royal Society B: Biological Sciences Pub Date : 2025-02-01 Epub Date: 2025-02-05 DOI: 10.1098/rspb.2024.2520

Mirte C M Kuijpers, Catherine V Quigley, Nicole C Bray, Wenbo Ding, Jeffrey D White, Sara L Jackrel

{"title":"Intraspecific divergence within Microcystis aeruginosa mediates the dynamics of freshwater harmful algal blooms under climate warming scenarios.","authors":"Mirte C M Kuijpers, Catherine V Quigley, Nicole C Bray, Wenbo Ding, Jeffrey D White, Sara L Jackrel","doi":"10.1098/rspb.2024.2520","DOIUrl":"10.1098/rspb.2024.2520","url":null,"abstract":"Intraspecific biodiversity can have ecosystem-level consequences and may affect the accuracy of ecological forecasting. For example, rare genetic variants may have traits that prove beneficial under future environmental conditions. The cyanobacterium responsible for most freshwater harmful algal blooms worldwide, Microcystis aeruginosa, occurs in at least three types. While the dominant type occurs in eutrophic environments and is adapted to thrive in nutrient-rich conditions, two additional types have recently been discovered that inhabit oligotrophic and eutrophic environments and have genomic adaptations for survival under nutrient limitation. Here, we show that these oligotrophic types are widespread throughout the Eastern USA. By pairing an experimental warming study with gene expression analyses, we found that the eutrophic type may be most susceptible to climate warming. In comparison, oligotrophic types maintained their growth better and persisted longer under warming. As a mechanistic explanation for these patterns, we found that oligotrophic types responded to warming by widespread elevated expression of heat shock protein genes. Reduction of nutrient loading has been a historically effective mitigation strategy for controlling harmful algal blooms. Our results suggest that climate warming may benefit oligotrophic types of M. aeruginosa, potentially reducing the effectiveness of such mitigation efforts. In-depth study of intraspecific variation may therefore improve forecasting for understanding future whole ecosystem dynamics.","PeriodicalId":20589,"journal":{"name":"Proceedings of the Royal Society B: Biological Sciences","volume":"292 2040","pages":"20242520"},"PeriodicalIF":3.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11793963/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143189772","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

Systematic shifts in the variation among host individuals must be considered in climate-disease theory.

IF 3.8 1区生物学

Proceedings of the Royal Society B: Biological Sciences Pub Date : 2025-02-01 Epub Date: 2025-02-05 DOI: 10.1098/rspb.2024.2515

Joseph R Mihaljevic, David J Páez

{"title":"Systematic shifts in the variation among host individuals must be considered in climate-disease theory.","authors":"Joseph R Mihaljevic, David J Páez","doi":"10.1098/rspb.2024.2515","DOIUrl":"10.1098/rspb.2024.2515","url":null,"abstract":"To make more informed predictions of host-pathogen interactions under climate change, studies have incorporated the thermal performance of host, vector and pathogen traits into disease models to quantify effects on average transmission rates. However, this body of work has omitted the fact that variation in susceptibility among individual hosts affects disease spread and long-term patterns of host population dynamics. Furthermore, and especially for ectothermic host species, variation in susceptibility is likely to be plastic, influenced by variables such as environmental temperature. For example, as host individuals respond idiosyncratically to temperature, this could affect the population-level variation in susceptibility, such that there may be predictable functional relationships between variation in susceptibility and temperature. Quantifying the relationship between temperature and among-host trait variation will therefore be critical for predicting how climate change and disease will interact to influence host-pathogen population dynamics. Here, we use a model to demonstrate how short-term effects of temperature on the distribution of host susceptibility can drive epidemic characteristics, fluctuations in host population sizes and probabilities of host extinction. Our results emphasize that more research is needed in disease ecology and climate biology to understand the mechanisms that shape individual trait variation, not just trait averages.","PeriodicalId":20589,"journal":{"name":"Proceedings of the Royal Society B: Biological Sciences","volume":"292 2040","pages":"20242515"},"PeriodicalIF":3.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11793970/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143190101","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 role of stochasticity in fungal community assembly: explaining apparent stochasticity with field experiments.

IF 3.8 1区生物学

Proceedings of the Royal Society B: Biological Sciences Pub Date : 2025-02-01 Epub Date: 2025-02-05 DOI: 10.1098/rspb.2024.2416

Nerea Abrego, Sonja Saine, Reijo Penttilä, Brendan Furneaux, Tuija Hytönen, Otto Miettinen, Norman Monkhouse, Raisa Mäkipää, Jorma Pennanen, Evgeny V Zakharov, Otso Ovaskainen

{"title":"The role of stochasticity in fungal community assembly: explaining apparent stochasticity with field experiments.","authors":"Nerea Abrego, Sonja Saine, Reijo Penttilä, Brendan Furneaux, Tuija Hytönen, Otto Miettinen, Norman Monkhouse, Raisa Mäkipää, Jorma Pennanen, Evgeny V Zakharov, Otso Ovaskainen","doi":"10.1098/rspb.2024.2416","DOIUrl":"https://doi.org/10.1098/rspb.2024.2416","url":null,"abstract":"Stochasticity is a main process in community assembly. However, experimental studies rarely target stochasticity in natural communities, and hence experimental validation of stochasticity estimates in observational studies is lacking. Here, we combine experimental and observational data to unravel the role of stochasticity in the assembly of wood-inhabiting fungi. We carried out a replicated field experiment where the natural colonization of a focal fungal species was simulated through inoculation, and the local fungal communities were monitored through DNA metabarcoding before and after the inoculations. The amount of stochasticity in fungal colonization was less pronounced than expected from the amount of unpredictability in observational data, suggesting that stochasticity may play a smaller role in fungal occurrence than previously anticipated, or that it may be a stronger influence in the dispersal and establishment phases than in colonization per se. Stochasticity was more prominent in the initial phase of community succession, with the earliest successional stage involving a higher level of stochasticity than the later stage after 2 years. We conclude that experimentally measuring the role of stochasticity in community assembly is feasible for species-rich communities under natural conditions and highlight the importance of experimentally testing the accuracy of stochasticity estimates based on observational data.","PeriodicalId":20589,"journal":{"name":"Proceedings of the Royal Society B: Biological Sciences","volume":"292 2040","pages":"20242416"},"PeriodicalIF":3.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143190286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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