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A theoretical model for host-controlled regulation of symbiont density. J. Evol. Biol. (IF 2.1) Pub Date : 2023-11-13 Mathilda Whittle,Michael B Bonsall,Antoine M G Barreaux,Fleur Ponton,Sinead English
There is growing empirical evidence that animal hosts actively control the density of their mutualistic symbionts according to their requirements. Such active regulation can be facilitated by compartmentalization of symbionts within host tissues, which confers a high degree of control of the symbiosis to the host. Here, we build a general theoretical framework to predict the underlying ecological drivers
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How chromosomal inversions reorient the evolutionary process. J. Evol. Biol. (IF 2.1) Pub Date : 2023-11-08 Emma L Berdan,Nicholas H Barton,Roger Butlin,Brian Charlesworth,Rui Faria,Inês Fragata,Kimberly J Gilbert,Paul Jay,Martin Kapun,Katie E Lotterhos,Claire Mérot,Esra Durmaz Mitchell,Marta Pascual,Catherine L Peichel,Marina Rafajlović,Anja M Westram,Stephen W Schaeffer,Kerstin Johannesson,Thomas Flatt
Inversions are structural mutations that reverse the sequence of a chromosome segment and reduce the effective rate of recombination in the heterozygous state. They play a major role in adaptation, as well as in other evolutionary processes such as speciation. Although inversions have been studied since the 1920s, they remain difficult to investigate because the reduced recombination conferred by them
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Viruses, cancers, and evolutionary biology in the clinic: a commentary on Leeks et al. 2023. J. Evol. Biol. (IF 2.1) Pub Date : 2023-11-01 J Arvid Ågren,Jacob G Scott
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Open questions in the social lives of viruses. J. Evol. Biol. (IF 2.1) Pub Date : 2023-11-01 Asher Leeks,Lisa M Bono,Elizabeth A Ampolini,Lucas S Souza,Thomas Höfler,Courtney L Mattson,Anna E Dye,Samuel L Díaz-Muñoz
Social interactions among viruses occur whenever multiple viral genomes infect the same cells, hosts, or populations of hosts. Viral social interactions range from cooperation to conflict, occur throughout the viral world, and affect every stage of the viral lifecycle. The ubiquity of these social interactions means that they can determine the population dynamics, evolutionary trajectory, and clinical
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Bridging quasispecies theory and social evolution models for sociovirology insights: a commentary on Leeks et al. 2023. J. Evol. Biol. (IF 2.1) Pub Date : 2023-11-01 Santiago F Elena
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The social role of defective viral genomes in chronic viral infections: a commentary on Leeks et al. 2023. J. Evol. Biol. (IF 2.1) Pub Date : 2023-11-01 Lele Zhao,Katrina A Lythgoe
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The sociality continuum of viruses: a commentary on Leeks et al. 2023. J. Evol. Biol. (IF 2.1) Pub Date : 2023-11-01 Sebastian Lequime
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The social lives of viruses and other mobile genetic elements: a commentary on Leeks et al. 2023. J. Evol. Biol. (IF 2.1) Pub Date : 2023-11-01 Iris Irby,Sam P Brown
Illustration of life-histories of phages and plasmids through horizontal and vertical transmission (see Figure 1 for more information).
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Multiple infection theory rather than 'socio-virology'? A commentary on Leeks et al. 2023. J. Evol. Biol. (IF 2.1) Pub Date : 2023-11-01 Samuel Alizon
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Does the definition of a novel environment affect the ability to detect cryptic genetic variation? J. Evol. Biol. (IF 2.1) Pub Date : 2023-10-28 Camille L Riley,Vicencio Oostra,Stewart J Plaistow
Anthropogenic change exposes populations to environments that have been rare or entirely absent from their evolutionary past. Such novel environments are hypothesized to release cryptic genetic variation, a hidden store of variance that can fuel evolution. However, support for this hypothesis is mixed. One possible reason is a lack of clarity in what is meant by 'novel environment', an umbrella term
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The effects of sex on extinction dynamics of Chlamydomonas reinhardtii depend on the rate of environmental change. J. Evol. Biol. (IF 2.1) Pub Date : 2023-10-28 Nikola Petkovic,Nick Colegrave
The continued existence of sex, despite many the costs it entails, still lacks an adequate explanation, as previous studies demonstrated that the effects of sex are environment-dependent: sex enhances the rate of adaptation in changing environments, but the benefits level off in benign conditions. To the best of our knowledge, the potential impact of different patterns of environmental change on the
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Evolution of reproductive modes in sharks and rays. J. Evol. Biol. (IF 2.1) Pub Date : 2023-10-26 Gergely Katona,Flóra Szabó,Zsolt Végvári,Tamás Székely,András Liker,Robert P Freckleton,Balázs Vági,Tamás Székely
The ecological and life history drivers of the diversification of reproductive modes in early vertebrates are not fully understood. Sharks, rays and chimaeras (group Chondrichthyes) have an unusually diverse variety of reproductive modes and are thus an ideal group to test the factors driving the evolution of reproductive complexity. Here, using 960 species representing all major Chondrichthyes taxa
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A novel cricket morph has diverged in song and wing morphology across island populations. J. Evol. Biol. (IF 2.1) Pub Date : 2023-10-26 James H Gallagher,David M Zonana,E Dale Broder,Aziz M Syammach,Robin M Tinghitella
Divergence of sexual signals between populations can lead to speciation, yet opportunities to study the immediate aftermath of novel signal evolution are rare. The recent emergence and spread of a new mating song, purring, in Hawaiian populations of the Pacific field cricket (Teleogryllus oceanicus) allows us to investigate population divergence soon after the origin of a new signal. Male crickets
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Assessing the evolutionary lability of insulin signalling in the regulation of nutritional plasticity across traits and species of horned dung beetles. J. Evol. Biol. (IF 2.1) Pub Date : 2023-10-26 Patrick T Rohner,Sofia Casasa,Armin P Moczek
Nutrition-dependent growth of sexual traits is a major contributor to phenotypic diversity, and a large body of research documents insulin signalling as a major regulator of nutritional plasticity. However, findings across studies raise the possibility that the role of individual components within the insulin signalling pathway diverges in function among traits and taxa. Here, we use RNAi-mediated
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Domestication shapes the pig gut microbiome and immune traits from the scale of lineage to population. J. Evol. Biol. (IF 2.1) Pub Date : 2023-10-26 Sahana Kuthyar,Jessica Diaz,Fabiola Avalos-Villatoro,Christian Maltecca,Francesco Tiezzi,Robert R Dunn,Aspen T Reese
Animal ecology and evolution have long been known to shape host physiology, but more recently, the gut microbiome has been identified as a mediator between animal ecology and evolution and health. The gut microbiome has been shown to differ between wild and domestic animals, but the role of these differences for domestic animal evolution remains unknown. Gut microbiome responses to new animal genotypes
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Integrating morphological, molecular and cytogenetic data for F2 sea turtle hybrids diagnosis revealed balanced chromosomal sets. J. Evol. Biol. (IF 2.1) Pub Date : 2023-10-26 Caroline Regina Dias Machado,Matheus Azambuja,Camila Domit,Gabriel Fraga da Fonseca,Larissa Glugoski,Camilla Borges Gazolla,Rafael Bonfim de Almeida,Marcela Baer Pucci,Thais Torres Pires,Viviane Nogaroto,Marcelo Ricardo Vicari
Hybridization could be considered part of the evolutionary history of many species. The hybridization among sea turtle species on the Brazilian coast is atypical and occurs where nesting areas and reproductive seasons overlap. Integrated analysis of morphology and genetics is still scarce, and there is no evidence of the parental chromosome set distribution in sea turtle interspecific hybrids. In this
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Genotype specific and microbiome effects of hypoxia in the model organism Daphnia magna. J. Evol. Biol. (IF 2.1) Pub Date : 2023-10-11 Manon Coone,Karen Bisschop,Isabel Vanoverberghe,Chris Verslype,Ellen Decaestecker
The fitness of the host is highly influenced by the interplay between the host and its associated microbiota. The flexible nature of these microbiota enables them to respond swiftly to shifts in the environment, which plays a key role in the host's capacity to withstand environmental stresses. To understand the role of the microbiome in host tolerance to hypoxia, one of the most significant chemical
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Implementing code review in the scientific workflow: Insights from ecology and evolutionary biology. J. Evol. Biol. (IF 2.1) Pub Date : 2023-10-01 Edward R Ivimey-Cook,Joel L Pick,Kevin R Bairos-Novak,Antica Culina,Elliot Gould,Matthew Grainger,Benjamin M Marshall,David Moreau,Matthieu Paquet,Raphaël Royauté,Alfredo Sánchez-Tójar,Inês Silva,Saras M Windecker
Code review increases reliability and improves reproducibility of research. As such, code review is an inevitable step in software development and is common in fields such as computer science. However, despite its importance, code review is noticeably lacking in ecology and evolutionary biology. This is problematic as it facilitates the propagation of coding errors and a reduction in reproducibility
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phylosem: A fast and simple R package for phylogenetic inference and trait imputation using phylogenetic structural equation models. J. Evol. Biol. (IF 2.1) Pub Date : 2023-10-01 James T Thorson,Wouter van der Bijl
Phylogenetic comparative methods (PCMs) can be used to study evolutionary relationships and trade-offs among species traits. Analysts using PCM may want to (1) include latent variables, (2) estimate complex trait interdependencies, (3) predict missing trait values, (4) condition predicted traits upon phylogenetic correlations and (5) estimate relationships as slope parameters that can be compared with
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Does ecological drift explain variation in microbiome composition among groups in a social host species? J. Evol. Biol. (IF 2.1) Pub Date : 2023-09-30 Clémence Rose,Marie Braad Lund,Andreas Schramm,Trine Bilde,Jesper Bechsgaard
Within a given species, considerable inter-individual, spatial, and temporal variation in the composition of the host microbiome exists. In group-living animals, social interactions homogenize microbiome composition among group members, nevertheless divergence in microbiome composition among related groups arise. Such variation can result from deterministic and stochastic processes. Stochastic changes
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Linking temperature dependence of fitness effects of mutations to thermal niche adaptation. J. Evol. Biol. (IF 2.1) Pub Date : 2023-09-26 Nan Chen,Quan-Guo Zhang
Fitness effects of mutations may generally depend on temperature that influences all rate-limiting biophysical and biochemical processes. Earlier studies suggested that high temperatures may increase the availability of beneficial mutations ('more beneficial mutations'), or allow beneficial mutations to show stronger fitness effects ('stronger beneficial mutation effects'). The 'more beneficial mutations'
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Ghost introgression in ricefishes of the genus Adrianichthys in an ancient Wallacean lake. J. Evol. Biol. (IF 2.1) Pub Date : 2023-09-22 Kazunori Yamahira,Hirozumi Kobayashi,Ryo Kakioka,Javier Montenegro,Kawilarang W A Masengi,Noboru Okuda,Atsushi J Nagano,Rieko Tanaka,Kiyoshi Naruse,Shoji Tatsumoto,Yasuhiro Go,Satoshi Ansai,Junko Kusumi
Because speciation might have been promoted by ancient introgression from an extinct lineage, it is important to detect the existence of 'ghost introgression' in focal taxa and examine its contribution to their diversification. In this study, we examined possible ghost introgression and its contributions to the diversification of ricefishes of the genus Adrianichthys in Lake Poso, an ancient lake on
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Bite force, body size, and octopamine mediate mating interactions in the house cricket (Acheta domesticus). J. Evol. Biol. (IF 2.1) Pub Date : 2023-09-22 Fadeke Adeola,Simon Lailvaux
Mating interactions are rife with conflict because the evolutionary interests of males and females seldom coincide. Intersexual conflict affects sexual selection, yet the proximate factors underlying male coercive ability and female resistance are poorly understood. Male combat outcomes are often influenced by bite force, with superior biters being more likely to achieve victory over poorer biters
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High-performing plastic clones best explain the spread of yellow monkeyflower from lowland to higher elevation areas in New Zealand. J. Evol. Biol. (IF 2.1) Pub Date : 2023-09-20 Michelle Williamson,Daniel Gerhard,Philip E Hulme,Aaron Millar,Hazel Chapman
The relative contribution of adaptation and phenotypic plasticity can vary between core and edge populations, with implications for invasive success. We investigated the spread of the invasive yellow monkeyflower, Erythranthe gutatta in New Zealand, where it is spreading from lowland agricultural land into high-elevation conservation areas. We investigated the extent of phenotypic variation among clones
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Rapid hyperthyroidism-induced adaptation of salmonid fish in response to environmental pollution. J. Evol. Biol. (IF 2.1) Pub Date : 2023-09-20 Evgeny V Esin,Elena V Shulgina,Fedor N Shkil
The streams draining volcanic landscapes are often characterized by a complex series of factors that negatively affect hydrobionts and lead to declines in their populations. However, in a number of cases, a range of rapid adaptive changes ensure the resilience of hydrobiont populations. Here, we present both field and experimental data shedding light on the physiological basis of adaptation to heavy
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Phenotypic variation and genomic variation in insect virulence traits reveal patterns of intraspecific diversity in a locust-specific fungal pathogen. J. Evol. Biol. (IF 2.1) Pub Date : 2023-09-13 Dinah Parker,Nicolai V Meyling,Henrik H De Fine Licht
Intraspecific pathogen diversity is crucial for understanding the evolution and maintenance of adaptation in host-pathogen interactions. Traits associated with virulence are often a significant source of variation directly impacted by local selection pressures. The specialist fungal entomopathogen, Metarhizium acridum, has been widely implemented as a biological control agent of locust pests in tropical
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Sex-specific trait architecture in a spider with sexual size dimorphism. J. Evol. Biol. (IF 2.1) Pub Date : 2023-09-13 Simona Kralj-Fišer,Matjaž Kuntner,Paul Vincent Debes
Sexual dimorphism, or sex-specific trait expression, may evolve when selection favours different optima for the same trait between sexes, that is, under antagonistic selection. Intra-locus sexual conflict exists when the sexually dimorphic trait under antagonistic selection is based on genes shared between sexes. A common assumption is that the presence of sexual-size dimorphism (SSD) indicates that
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Cryptic community structure and metabolic interactions among the heritable facultative symbionts of the pea aphid. J. Evol. Biol. (IF 2.1) Pub Date : 2023-09-13 Linyao Peng,Jessica Hoban,Jonah Joffe,Andrew H Smith,Melissa Carpenter,Tracy Marcelis,Vilas Patel,Nicole Lynn-Bell,Kerry M Oliver,Jacob A Russell
Most insects harbour influential, yet non-essential heritable microbes in their hemocoel. Communities of these symbionts exhibit low diversity. But their frequent multi-species nature raises intriguing questions on roles for symbiont-symbiont synergies in host adaptation, and on the stability of the symbiont communities, themselves. In this study, we build on knowledge of species-defined symbiont community
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The disperser dilemma in cooperatively breeding birds. J. Evol. Biol. (IF 2.1) Pub Date : 2023-09-13 Aviad Heifetz
In most cooperatively breeding birds, individuals do not breed with their natal group members. In order to breed, they have either to disperse into another group or wait for an opposite-sex individual to join their group. In most of these species, females disperse more than males. We develop a dynamic game-theoretic model to account for this asymmetry. When males are physically larger/heavier than
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Beyond classical theories: An integrative mathematical model of mating dynamics and parental care. J. Evol. Biol. (IF 2.1) Pub Date : 2023-09-10 Gui Araujo,Rafael Rios Moura
Classical theories, such as Bateman's principle and Trivers' parental investment theory, attempted to explain the coevolution of sexual selection and parental care through simple verbal arguments. Since then, quantitative models have demonstrated that it is rarely that simple because many non-intuitive structures and non-linear relationships are actually at play. In this study, we propose a new standard
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Why do Hymenopteran workers drift to non-natal groups? Generalized reciprocity and the maximization of group and parental success. J. Evol. Biol. (IF 2.1) Pub Date : 2023-09-05 Peter Nonacs
Eusocial Hymenoptera are often characterized by having facultatively or obligately sterile worker castes. However, findings across an increasing number of species are that some workers are non-natal-they have 'drifted' away from where they were born and raised. Moreover, drifters are often indistinguishable from natal workers in the work and benefits provided to joined groups. This seems an evolutionary
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Alteration of diet microbiota limits the experimentally evolved immune priming response in flour beetles, but not pathogen resistance. J. Evol. Biol. (IF 2.1) Pub Date : 2023-09-01 Arun Prakash,Deepa Agashe,Imroze Khan
Host-associated microbiota play a fundamental role in the training and induction of different forms of immunity, including inducible as well as constitutive components. However, direct experiments analysing the relative importance of microbiota on diverse forms of evolved immune functions are missing. We addressed this gap by using experimentally evolved lines of Tribolium castaneum that either produced
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The maintenance of genetic diversity under host-parasite coevolution in finite, structured populations. J. Evol. Biol. (IF 2.1) Pub Date : 2023-08-23 Madeline A E Peters,Nicole Mideo,Ailene MacPherson
As a corollary to the Red Queen hypothesis, host-parasite coevolution has been hypothesized to maintain genetic variation in both species. Recent theoretical work, however, suggests that reciprocal natural selection alone is insufficient to maintain variation at individual loci. As highlighted by our brief review of the theoretical literature, models of host-parasite coevolution often vary along multiple
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Soft selection reduces loss of heterozygosity in asexual reproduction. J. Evol. Biol. (IF 2.1) Pub Date : 2023-08-16 Marco Archetti
The adaptive value of sexual reproduction is still debated in evolutionary theory. It has been proposed that the advantage of sexual reproduction over asexual reproduction is to promote genetic diversity, to prevent the accumulation of harmful mutations or to preserve heterozygosity. Since these hypothetical advantages depend on the type of asexual reproduction, understanding how selection affects
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Environmental effects rather than relatedness determine gut microbiome similarity in a social mammal. J. Evol. Biol. (IF 2.1) Pub Date : 2023-08-16 Hanna M Bensch,Daniel Lundin,Conny Tolf,Jonas Waldenström,Markus Zöttl
In social species, group members commonly show substantial similarity in gut microbiome composition. Such similarities have been hypothesized to arise either by shared environmental effects or by host relatedness. However, disentangling these factors is difficult, because group members are often related, and social groups typically share similar environmental conditions. In this study, we conducted
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Male size does not affect the strength of male mate choice for high-quality females in Drosophila melanogaster. J. Evol. Biol. (IF 2.1) Pub Date : 2023-08-03 Avigayil Lev,Alison Pischedda
Theory predicts that the strength of male mate choice should vary depending on male quality when higher-quality males receive greater fitness benefits from being choosy. This pattern extends to differences in male body size, with larger males often having stronger pre- and post-copulatory preferences than smaller males. We sought to determine whether large males and small males differ in the strength
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Beauty or function? The opposing effects of natural and sexual selection on cuticular hydrocarbons in male black field crickets. J. Evol. Biol. (IF 2.1) Pub Date : 2023-08-03 Christopher Mitchell,Zachariah Wylde,Enrique Del Castillo,James Rapkin,Clarissa M House,John Hunt
Although many theoretical models of male sexual trait evolution assume that sexual selection is countered by natural selection, direct empirical tests of this assumption are relatively uncommon. Cuticular hydrocarbons (CHCs) are known to play an important role not only in restricting evaporative water loss but also in sexual signalling in most terrestrial arthropods. Insects adjusting their CHC layer
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Environmental variance in male mating success modulates the positive versus negative impacts of sexual selection on genetic load. J. Evol. Biol. (IF 2.1) Pub Date : 2023-07-27 Maximilian Tschol,Jane M Reid,Greta Bocedi
Sexual selection on males is predicted to increase population fitness, and delay population extinction, when mating success negatively covaries with genetic load across individuals. However, such benefits of sexual selection could be counteracted by simultaneous increases in genome-wide drift resulting from reduced effective population size caused by increased variance in fitness. Resulting fixation
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Adaptive phenotypic and genomic divergence in the common chaffinch (Fringilla coelebs) following niche expansion within a small oceanic island. J. Evol. Biol. (IF 2.1) Pub Date : 2023-07-23 María Recuerda,Mercè Palacios,Oscar Frías,Keith Hobson,Benoit Nabholz,Guillermo Blanco,Borja Milá
According to models of ecological speciation, adaptation to adjacent, contrasting habitat types can lead to population divergence given strong enough environment-driven selection to counteract the homogenizing effect of gene flow. We tested this hypothesis in the common chaffinch (Fringilla coelebs) on the small island of La Palma, Canary Islands, where it occupies two markedly different habitats.
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Age trajectories in extra-pair siring success suggest an effect of maturation or early-life experience. J. Evol. Biol. (IF 2.1) Pub Date : 2023-07-12 Emmi Schlicht,Bart Kempenaers
Across birds, male age is the most consistent predictor of extra-pair siring success, yet little is known about age effects on paternity over the lifetime of individuals. Here, we use data from a 13-year study of a population of blue tits (Cyanistes caeruleus) to investigate how extra-pair siring success changes with age within individuals. Our results indicate that extra-pair siring success does not
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Female reproductive fluid concentrations affect sperm performance of alternative male phenotypes in an external fertilizer. J. Evol. Biol. (IF 2.1) Pub Date : 2023-07-12 Livia Pinzoni,Lisa Locatello,Clelia Gasparini,Maria Berica Rasotto
There is growing evidence that the female reproductive fluid (FRF) plays an important role in cryptic female choice through its differential effect on the performance of sperm from different males. In a natural spawning event, the male(s) may release ejaculate closer or further away from the spawning female. If the relative spatial proximity of competing males reflects the female pre-mating preference
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Ontogenetic change in effectiveness of chemical defence against different predators in Oxycarenus true bugs. J. Evol. Biol. (IF 2.1) Pub Date : 2023-07-10 Jan Raška,Kateřina Chalušová,Jan Krajiček,Radomír Čabala,Zuzana Bosáková,Pavel Štys,Alice Exnerová
Many prey species change their antipredator defence during ontogeny, which may be connected to different potential predators over the life cycle of the prey. To test this hypothesis, we compared reactions of two predator taxa - spiders and birds - to larvae and adults of two invasive true bug species, Oxycarenus hyalinipennis and Oxycarenus lavaterae (Heteroptera: Oxycarenidae) with life-stage-specific
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Environmentally independent selection for hybrids between divergent freshwater stickleback lineages in semi-natural ponds. J. Evol. Biol. (IF 2.1) Pub Date : 2023-07-02 Cameron Marshall Hudson,Maria Cuenca Cambronero,Marvin Moosmann,Anita Narwani,Piet Spaak,Ole Seehausen,Blake Matthews
Hybridization following secondary contact of genetically divergent populations can influence the range expansion of invasive species, though specific outcomes depend on the environmental dependence of hybrid fitness. Here, using two genetically and ecologically divergent threespine stickleback lineages that differ in their history of freshwater colonization, we estimate fitness variation of parental
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Evolution of multiple prey defences: From predator cognition to community ecology. J. Evol. Biol. (IF 2.1) Pub Date : 2023-07-01 Alice Exnerová,Changku Kang,Hannah M Rowland,David W Kikuchi
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Evolution of posture in amniotes-Diving into the trabecular architecture of the femoral head. J. Evol. Biol. (IF 2.1) Pub Date : 2023-06-26 Jordan Gônet,Michel Laurin,John R Hutchinson
Extant amniotes show remarkable postural diversity. Broadly speaking, limbs with erect (strongly adducted, more vertically oriented) posture are found in mammals that are particularly heavy (graviportal) or show good running skills (cursorial), while crouched (highly flexed) limbs are found in taxa with more generalized locomotion. In Reptilia, crocodylians have a "semi-erect" (somewhat adducted) posture
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The evolution and ecology of multiple antipredator defences. J. Evol. Biol. (IF 2.1) Pub Date : 2023-06-26 David W Kikuchi,William L Allen,Kevin Arbuckle,Thomas G Aubier,Emmanuelle S Briolat,Emily R Burdfield-Steel,Karen L Cheney,Klára Daňková,Marianne Elias,Liisa Hämäläinen,Marie E Herberstein,Thomas J Hossie,Mathieu Joron,Krushnamegh Kunte,Brian C Leavell,Carita Lindstedt,Ugo Lorioux-Chevalier,Melanie McClure,Callum F McLellan,Iliana Medina,Viraj Nawge,Erika Páez,Arka Pal,Stano Pekár,Olivier Penacchio
Prey seldom rely on a single type of antipredator defence, often using multiple defences to avoid predation. In many cases, selection in different contexts may favour the evolution of multiple defences in a prey. However, a prey may use multiple defences to protect itself during a single predator encounter. Such "defence portfolios" that defend prey against a single instance of predation are distributed
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Social group composition modulates the role of last male sperm precedence in post-copulatory sexual selection. J. Evol. Biol. (IF 2.1) Pub Date : 2023-06-21 Juliano Morimoto,Grant C McDonald,Stuart Wigby
In many species, the order in which males mate with a female explains much of the variation in paternity arising from post-copulatory sexual selection. Research in Drosophila suggests that mating order may account for the majority of the variance in male reproductive success. However, the effects of mating order on paternity bias might not be static but could potentially vary with social or environmental
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Plasticity and genetic effects contribute to different axes of neural divergence in a community of mimetic Heliconius butterflies. J. Evol. Biol. (IF 2.1) Pub Date : 2023-06-21 Laura Hebberecht,J Benito Wainwright,Charlotte Thompson,Simon Kershenbaum,W Owen McMillan,Stephen H Montgomery
Changes in ecological preference, often driven by spatial and temporal variation in resource distribution, can expose populations to environments with divergent information content. This can lead to adaptive changes in the degree to which individuals invest in sensory systems and downstream processes, to optimize behavioural performance in different contexts. At the same time, environmental conditions
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Predator response to the coloured eyespots and defensive posture of Colombian four-eyed frogs. J. Evol. Biol. (IF 2.1) Pub Date : 2023-06-21 Tatiana L Hernández-Palma,Luis Alberto Rueda-Solano,Janne K Valkonen,Bibiana Rojas
Deimatic displays, where sudden changes in prey appearance elicit aversive predator reactions, have been suggested to occur in many taxa. These (often only putative) displays frequently involve different components that may also serve antipredator functions via other mechanisms (e.g., mimicry, warning signalling, body inflation). The Colombian four-eyed frog, Pleurodema brachyops, has been suggested
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Evolution of territoriality in Hylinae treefrogs: Ecological and morphological correlates and lineage diversification. J. Evol. Biol. (IF 2.1) Pub Date : 2023-06-15 Ricardo Luría-Manzano,Paulo D P Pinheiro,Tiana Kohlsdorf,Célio F B Haddad,Marcio Martins
Given the diverse nature of traits involved in territorial defence, they may respond to different selective pressures and then exhibit distinct patterns of evolution. These selective pressures also may cause territorial behaviour to be associated with environmental and morphological variables. Such associations, however, have mostly been studied at the intraspecific level, being phylogenetic analyses
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Sexual signal evolution and patterns of assortative mating across an intraspecific contact zone. J. Evol. Biol. (IF 2.1) Pub Date : 2023-06-12 Florine J M Pascal,Andrés Vega,Maria Akopyan,Kim L Hoke,Jeanne M Robertson
Contact zones provide important insights into the evolutionary processes that underlie lineage divergence and speciation. Here, we use a contact zone to ascertain speciation potential in the red-eyed treefrog (Agalychnis callidryas), a brightly coloured and polymorphic frog that exhibits unusually high levels of intraspecific variation. Populations of A. callidryas differ in a number of traits, several
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Multiple paternity is related to adult sex ratio and sex determination system in reptiles. J. Evol. Biol. (IF 2.1) Pub Date : 2023-05-31 Ivett Pipoly,Robert Duffy,Gábor Mészáros,Veronika Bókony,Balázs Vági,Tamás Székely,András Liker
The adult sex ratio (ASR, the proportion of males in the adult population) is an emerging predictor of reproductive behaviour, and recent studies in birds and humans suggest it is a major driver of social mating systems and parental care. ASR may also influence genetic mating systems. For instance male-skewed ASRs are expected to increase the frequency of multiple paternity (defined here as a clutch
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The effect of mutational robustness on the evolvability of multicellular organisms and eukaryotic cells. J. Evol. Biol. (IF 2.1) Pub Date : 2023-05-31 Pengyao Jiang,Martin Kreitman,John Reinitz
Canalization involves mutational robustness, the lack of phenotypic change as a result of genetic mutations. Given the large divergence in phenotype across species, understanding the relationship between high robustness and evolvability has been of interest to both theorists and experimentalists. Although canalization was originally proposed in the context of multicellular organisms, the effect of
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Understanding the evolution of immune genes in jawed vertebrates. J. Evol. Biol. (IF 2.1) Pub Date : 2023-05-31 Michal Vinkler,Steven R Fiddaman,Martin Těšický,Emily A O'Connor,Anna E Savage,Tobias L Lenz,Adrian L Smith,Jim Kaufman,Daniel I Bolnick,Charli S Davies,Neira Dedić,Andrew S Flies,M Mercedes Gómez Samblás,Amberleigh E Henschen,Karel Novák,Gemma Palomar,Nynke Raven,Kalifa Samaké,Joel Slade,Nithya Kuttiyarthu Veetil,Eleni Voukali,Jacob Höglund,David S Richardson,Helena Westerdahl
Driven by co-evolution with pathogens, host immunity continuously adapts to optimize defence against pathogens within a given environment. Recent advances in genetics, genomics and transcriptomics have enabled a more detailed investigation into how immunogenetic variation shapes the diversity of immune responses seen across domestic and wild animal species. However, a deeper understanding of the diverse
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Position in the laying order has sex-specific consequences for reproductive success in adult black-headed gulls. J. Evol. Biol. (IF 2.1) Pub Date : 2023-05-31 Kat Bebbington,Ton G G Groothuis
Mothers who produce multiple offspring within one reproductive attempt often allocate resources differentially; some maternally derived substances are preferentially allocated to last-produced offspring and others to first-produced offspring. The combined effect of these different allocation regimes on the overall fitness of offspring produced early or late in the sequence is not well understood, partly
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Bet-hedging via dispersal aids the evolution of plastic responses to unreliable cues. J. Evol. Biol. (IF 2.1) Pub Date : 2023-05-24 Jeremy A Draghi
Adaptive plasticity is expected to evolve when informative cues predict environmental variation. However, plastic responses can be maladaptive even when those cues are informative, if prediction mistakes are shared across members of a generation. These fitness costs can constrain the evolution of plasticity when initial plastic mutants use of cues of only moderate reliability. Here, we model the barriers
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Age-specific survival of territorial and non-territorial male chamois. J. Evol. Biol. (IF 2.1) Pub Date : 2023-05-24 Luca Corlatti,Antonella Cotza
How alternative reproductive tactics (ARTs) are maintained in wildlife populations is one of the major questions in evolutionary biology. As a dominant status, territoriality is typically linked to increased mating opportunities, and one explanation why this behaviour coexists with other tactics is that dominance implies survival costs. Such a trade-off may occur in the Northern chamois Rupicapra rupicapra
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The role of sexual isolation during rapid ecological divergence: Evidence for a new dimension of isolation in Rhagoletis pomonella. J. Evol. Biol. (IF 2.1) Pub Date : 2023-05-12 Alycia C R Lackey,Alyssa C Murray,Nadia A Mirza,Thomas H Q Powell
The pace of divergence and likelihood of speciation often depends on how and when different types of reproductive barriers evolve. Questions remain about how reproductive isolation evolves after initial divergence. We tested for the presence of sexual isolation (reduced mating between populations due to divergent mating preferences and traits) in Rhagoletis pomonella flies, a model system for incipient
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Experimental evolution of evolutionary potential in fluctuating environments. J. Evol. Biol. (IF 2.1) Pub Date : 2023-05-02 Tarmo Ketola,Ilkka Kronholm
Variation is the raw material for evolution. Evolutionary potential is determined by the amount of genetic variation, but evolution can also alter the visibility of genetic variation to natural selection. Fluctuating environments are suggested to maintain genetic variation but they can also affect environmental variance, and thus, the visibility of genetic variation to natural selection. However, experimental
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Ecology, sexual dimorphism, and jumping evolution in anurans. J. Evol. Biol. (IF 2.1) Pub Date : 2023-05-01 Bryan H Juarez,Daniel S Moen,Dean C Adams
Sexual dimorphism (SD) is a common feature of animals, and selection for sexually dimorphic traits may affect both functional morphological traits and organismal performance. Trait evolution through natural selection can also vary across environments. However, whether the evolution of organismal performance is distinct between the sexes is rarely tested in a phylogenetic comparative context. Anurans