Peer community journal最新文献_第2页

IUENNA – openIng the soUthErn jauNtal as a micro-regioN for future Archaeology: A «para-description» 伊恩纳--开放作为未来考古学微观区域的土伦丘陵：准描述

Peer community journal Pub Date : 2023-12-14 DOI: 10.24072/pcjournal.338

Dominik Hagmann, Franziska Reiner

引用次数: 0

Does sociality affect evolutionary speed? 社会性会影响进化速度吗？

Peer community journal Pub Date : 2023-12-11 DOI: 10.24072/pcjournal.352

Lluís Socias-Martínez, L. Peckre

引用次数: 1

Transgenerational cues about local mate competition affect offspring sex ratios in the spider mite Tetranychus urticae 本地配偶竞争的跨代线索影响了荨麻叶螨后代的性别比例

Peer community journal Pub Date : 2023-11-13 DOI: 10.24072/pcjournal.343

Alison B. Duncan, Cassandra Marinosci, Céline Devaux, Sophie Lefèvre, Sara Magalhães, Joanne Griffin, Adeline Valente, Ophélie Ronce, Isabelle Olivieri

{"title":"Transgenerational cues about local mate competition affect offspring sex ratios in the spider mite Tetranychus urticae","authors":"Alison B. Duncan, Cassandra Marinosci, Céline Devaux, Sophie Lefèvre, Sara Magalhães, Joanne Griffin, Adeline Valente, Ophélie Ronce, Isabelle Olivieri","doi":"10.24072/pcjournal.343","DOIUrl":"https://doi.org/10.24072/pcjournal.343","url":null,"abstract":"In structured populations, competition for mates between closely related males, termed Local Mate Competition (LMC), is expected to select for female-biased offspring sex ratios. However, the cues underlying sex allocation decisions remain poorly studied. Here, we test for several cues in the spider mite Tetranychus urticae, a species that was previously found to adjust the sex ratio of its offspring in response to the number of females within the local population, i.e. a patch. We here investigate whether the offspring sex ratio of T. urticae females changes in response to 1) the current number of females in the same patch, 2) the number of females in the patches of their mothers and 3) their relatedness to their mate. Single females on patches produced similar sex ratios to those of groups of 15 females; their mothers had been in identical conditions of panmixia. The offspring sex ratios of females mated with their brother did not differ from those of females mated with an unrelated male. Females however produced a more female-biased offspring sex ratio if their mothers were alone on a patch compared to 15 other females. Thus, maternal environment is used as a cue for the sex allocation of daughters. We discuss the conditions under which the maternal environment may be a reliable predictor of LMC experienced by grand-sons.","PeriodicalId":74413,"journal":{"name":"Peer community journal","volume":"11 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136347412","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

Longitudinal Survey of Astrovirus infection in different bat species in Zimbabwe: Evidence of high genetic Astrovirus diversity 津巴布韦不同蝙蝠物种中星状病毒感染的纵向调查:高遗传星状病毒多样性的证据

Peer community journal Pub Date : 2023-11-08 DOI: 10.24072/pcjournal.340

Vimbiso Chidoti, Hélène De Nys, Malika Abdi, Getrude Mashura, Valérie Pinarello, Ngoni Chiweshe, Gift Matope, Laure Guerrini, Davies Pfukenyi, Julien Cappelle, Ellen Mwandiringana, Dorothée Missé, Elizabeth Gori, Mathieu Bourgarel, Florian Liégeois

{"title":"Longitudinal Survey of Astrovirus infection in different bat species in Zimbabwe: Evidence of high genetic Astrovirus diversity","authors":"Vimbiso Chidoti, Hélène De Nys, Malika Abdi, Getrude Mashura, Valérie Pinarello, Ngoni Chiweshe, Gift Matope, Laure Guerrini, Davies Pfukenyi, Julien Cappelle, Ellen Mwandiringana, Dorothée Missé, Elizabeth Gori, Mathieu Bourgarel, Florian Liégeois","doi":"10.24072/pcjournal.340","DOIUrl":"https://doi.org/10.24072/pcjournal.340","url":null,"abstract":"Astroviruses (AstVs) have been discovered in over 80 animal species including diverse bat species and avian species. A study on Astrovirus circulation and diversity in different insectivorous and frugivorous chiropteran species roosting in trees, caves and building basements was carried out at 11 different sites across Zimbabwe. Pooled and individual faecal sampling methods were used for this study, with collection dates ranging from June 2016 to July 2021. In two sites, Magweto and Chirundu, sampling was carried out at monthly intervals from August 2020 to July 2021. Astroviruses and bat mitochondrial genes were amplified using pan-AstVs and CytB /12S RNA PCR systems respectively. Phylogenetic analysis of the RdRp Astrovirus sequences revealed a high genetic diversity of astroviruses. All the bat astroviruses tested in this study clustered with the Mamastrovirus genus. Two distinct groups of amplified sequences were identified. One group was comprised of sequences isolated from Hipposideros, Rhinolophus and Eidolon helvum spp. clustered with Human Astrovirus strains: HuAstV types1-6, HuAstV-MLB1-3 and HuAstV-VA-1. The second group comprising the majority of the sequences clustered with different strains of Bat AstVs. Results from the longitudinal study at Magweto and Chirundu showed an overall AstV prevalence of 13.7% and 10.4% respectively. Peaks of AstV infection at Chirundu coincided with the period when juveniles are 4-6 months old. By combining data from our previous work on Coronaviruses, we also anaylzed co-infection of bats with Coronaviruses and Astroviruses at Magweto and Chirundu sites for which the prevalence of co-infection was 2.6% and 3.5% respectively.","PeriodicalId":74413,"journal":{"name":"Peer community journal","volume":"21 16","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135390329","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

Assessing species interactions using integrated predator-prey models 利用综合捕食-猎物模型评估物种相互作用

Peer community journal Pub Date : 2023-11-08 DOI: 10.24072/pcjournal.337

Matthieu Paquet, Frédéric Barraquand

{"title":"Assessing species interactions using integrated predator-prey models","authors":"Matthieu Paquet, Frédéric Barraquand","doi":"10.24072/pcjournal.337","DOIUrl":"https://doi.org/10.24072/pcjournal.337","url":null,"abstract":"Inferring the strength of species interactions from demographic data is a challenging task. The Integrated Population Modelling (IPM) approach, bringing together population counts, capture-recapture, and individual-level fecundity data into a unified model framework, has been extended from single species to the community level. This allows to specify IPMs for multiple species with interactions specified as links between vital rates and stage-specific densities. However, there is no evaluation of such models when interactions are actually absent---while any interaction inference method runs the risk of producing false positives. We investigate here whether multispecies IPMs could output interactions where there are in fact none, building on an existing predator-prey IPM. We show that interspecific density-dependence estimates are centered on zero when simulated to be zero, and therefore their estimation is unbiased. Their coverage probability, quantifying how many times credible intervals include zero, is also satisfactory. We further confirm that adding random temporal variation to multispecies density-dependent link functions does not alter these results. This study therefore reaffirms the potential of multispecies IPMs to infer correctly how biotic interactions influence demography, although future studies should investigate model misspecifications.","PeriodicalId":74413,"journal":{"name":"Peer community journal","volume":"79 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135341570","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

Telomere length varies with sex, hatching rank and year of birth in the Little Owl, Athene noctua 端粒长度随性别、孵化等级和出生年份的不同而变化

Peer community journal Pub Date : 2023-11-08 DOI: 10.24072/pcjournal.341

François Criscuolo, Inès Fache, Bertrand Scaar, Sandrine Zahn, Josefa Bleu

{"title":"Telomere length varies with sex, hatching rank and year of birth in the Little Owl, Athene noctua","authors":"François Criscuolo, Inès Fache, Bertrand Scaar, Sandrine Zahn, Josefa Bleu","doi":"10.24072/pcjournal.341","DOIUrl":"https://doi.org/10.24072/pcjournal.341","url":null,"abstract":"Telomeres are non-coding DNA sequences located at the end of linear chromosomes, protecting genome integrity. In numerous taxa, telomeres shorten with age and telomere length (TL) is positively correlated with longevity. Moreover, TL is also affected by environmental stressors and/or resource-demanding situations particularly during early-life. Thus, TL has been used as a physiological marker of individual quality and also as an indicator of population trend in conservation physiology. In this study, we investigated the effects of hatching rank, year of birth (2014 to 2017), sex and nest environment on TL of 137 Little Owls nestlings (Athene noctua). Little Owls’ populations in Europe showed a marked declined in the end of the 20th century. Nowadays, in the studied Alsatian population, the population is increasing. In this study, our results indicated that telomeres are longer in females and, independently of sex, in nestlings with the highest body condition. There was also a negative effect of hatching rank but only for last-hatched nestlings in large clutches of 5 nestlings. We did not find any effect of the environmental covariates on nestlings’ TL. Finally, we found that nestlings’ TL were shorter the last year of the study, while nestlings’ body condition stayed unchanged over the same period. This result is intriguing given the local positive population dynamics and is further discussed in the context of physiological conservation. Future studies should investigate the link between reduced TL and survival prospects in this species.","PeriodicalId":74413,"journal":{"name":"Peer community journal","volume":"17 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135391306","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

Identification of microbial exopolymer producers in sandy and muddy intertidal sediments by compound-specific isotope analysis 用化合物特异性同位素分析鉴定砂质和泥质潮间带沉积物中微生物外聚合物生成物

Peer community journal Pub Date : 2023-10-31 DOI: 10.24072/pcjournal.336

Cédric Hubas, Julie Gaubert-Boussarie, An-Sofie D’Hondt, Bruno Jesus, Dominique Lamy, Vona Meleder, Antoine Prins, Philippe Rosa, Willem Stock, Koen Sabbe

引用次数: 0

Structify-Net: Random Graph generation with controlled size and customized structure Structify-Net:随机生成具有控制大小和自定义结构的图

Peer community journal Pub Date : 2023-10-19 DOI: 10.24072/pcjournal.335

Remy Cazabet, Salvatore Citraro, Giulio Rossetti

引用次数: 0

Influence of endosymbionts on the reproductive fitness of the tick Ornithodoros moubata 内共生物质对moubata鸟蜱生殖适宜性的影响

Peer community journal Pub Date : 2023-10-18 DOI: 10.24072/pcjournal.334

Florian Taraveau, Thomas Pollet, Maxime Duhayon, Laëtitia Gardès, Hélène Jourdan-Pineau

{"title":"Influence of endosymbionts on the reproductive fitness of the tick Ornithodoros moubata","authors":"Florian Taraveau, Thomas Pollet, Maxime Duhayon, Laëtitia Gardès, Hélène Jourdan-Pineau","doi":"10.24072/pcjournal.334","DOIUrl":"https://doi.org/10.24072/pcjournal.334","url":null,"abstract":"Over the past decade, many studies have demonstrated the crucial role of the tick microbiome in tick biology. The soft tick Ornithodoros moubata is a hematophagous ectoparasite of Suidae, best known for transmitting the African swine fever virus. Its bacterial microbiota is characterized by a high prevalence of Francisella-like and Rickettsia endosymbionts. The present study aims to better understand the potential influence of these two major members of the tick microbiota on the reproductive fitness of O. moubata. A total of 132 adult female ticks were treated with antibiotics using gentamycin or rifampicin added to the blood meal. Half of the ticks were also supplemented with B vitamins to address the nutritional role of endosymbionts. Over two periods of 50 days, several traits related to the reproductive fitness were monitored to investigate the importance of Francisella and Rickettsia for these traits. It appeared that most of the reproductive parameters considered were not affected. However, antibiotic treatments induced an increase in the tick survival, indicating a potential fitness cost of harboring endosymbionts during the tick reproductive cycle. Similarly, 366 first stage nymphs of O. moubata were exposed to the same treatments for molecular quantification of both endosymbionts. Results from qPCR suggested that the treatments had a bacteriostatic effect on endosymbionts without completely eliminating neither Francisella-like endosymbiont nor Rickettsia.","PeriodicalId":74413,"journal":{"name":"Peer community journal","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135883688","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

COVFlow: phylodynamics analyses of viruses from selected SARS-CoV-2 genome sequences COVFlow:选定SARS-CoV-2基因组序列的病毒系统动力学分析

Peer community journal Pub Date : 2023-10-16 DOI: 10.24072/pcjournal.333

Gonché Danesh, Corentin Boennec, Laura Verdurme, Mathilde Roussel, Sabine Trombert-Paolantoni, Benoit Visseaux, Stéphanie Haim-Boukobza, Samuel Alizon

引用次数: 0