Social influence on age and reproduction: reduced lifespan and fecundity in multi-queen ant colonies.

abstract：:Although it is generally expected that inbreeding would lower fitness, few studies have directly quantified the effects of inbreeding in wild mammals. We investigated the effects of inbreeding using long-term data from bighorn sheep on Ram Mountain, Alberta, Canada, over 20 years. This population underwent a drastic d...

journal_title：Journal of evolutionary biology

authors： Rioux-Paquette E,Festa-Bianchet M,Coltman DW

更新日期：2011-01-01 00:00:00

abstract：:Phenotypic polymorphisms in natural systems are often maintained by ecological selection, but only if niche segregation between morphs exists. Polymorphism for eyed-side direction is rare among the approximately 700 species of flatfish (Pleuronectiformes), and the evolutionary mechanisms that maintain it are unknown. ...

journal_title：Journal of evolutionary biology

authors： Bergstrom CA

更新日期：2007-05-01 00:00:00

abstract：:Many species of the sexually deceptive genus Ophrys are characterized by insect-like flowers. Their form has been traditionally considered to play an important role in pollinator attraction and manipulation. Yet, the evolution of the floral form remains insufficiently understood. We hypothesize that pollinator-mediate...

journal_title：Journal of evolutionary biology

authors： Rakosy D,Cuervo M,Paulus HF,Ayasse M

更新日期：2017-11-01 00:00:00

abstract：:Parasites are ubiquitous and have well-documented ecological consequences. In contrast, the extent to which parasites drive phenotypic evolution in hosts remains obscure. We use a recently developed statistical technique--selective source analysis--to analyse the strength of phenotypic selection acting on floral trait...

journal_title：Journal of evolutionary biology

authors： Nuismer SL,Ridenhour BJ

更新日期：2008-07-01 00:00:00

abstract：:Critical size at which metamorphosis is initiated represents an important checkpoint in insect development. Here, we use experimental evolution in Drosophila melanogaster to test the long-standing hypothesis that larval malnutrition should favour a smaller critical size. We report that six fly populations subject to 1...

journal_title：Journal of evolutionary biology

authors： Vijendravarma RK,Narasimha S,Kawecki TJ

更新日期：2012-02-01 00:00:00

abstract：:We investigated the effect of temperature and wing morphology on the quantitative genetic variances and covariances of five size-related traits in the sand cricket, Gryllus firmus. Micropterous and macropterous crickets were reared in the laboratory at 24, 28 and 32 degrees C. Quantitative genetic parameters were esti...

journal_title：Journal of evolutionary biology

authors： Bégin M,Roff DA,Debat V

更新日期：2004-11-01 00:00:00

abstract：:Peacocks are a classic example of sexual selection, where females preferentially mate with males who have longer, more elaborate trains. One of the central hypotheses of sexual selection theory is that large or elaborate male 'ornaments' may signal high genetic quality (good genes). Good genes are thought to be those ...

journal_title：Journal of evolutionary biology

authors： Hale ML,Verduijn MH,Møller AP,Wolff K,Petrie M

更新日期：2009-06-01 00:00:00

abstract：:Competition and conflict among individuals can favour exploitative strategies that undermine the common good. Theory suggests that this can lead to a tragedy of the commons and ultimately population extinction, a phenomenon known as evolutionary suicide. Here, I present a model of the evolutionary tragedy of the commo...

journal_title：Journal of evolutionary biology

authors： Rankin DJ

更新日期：2007-01-01 00:00:00

abstract：:Sexual signalling is predicted to shape the evolution of sex-specific ornamentation, and establishing the costs and benefits of ornamentation and the information that ornamentation provides to receivers is necessary to evaluating this adaptive function. Here, we assessed the adaptive function of a common colour orname...

journal_title：Journal of evolutionary biology

authors： Moore MP,Martin RA

更新日期：2016-11-01 00:00:00

abstract：:Quaternary environmental changes substantially impacted the landscape and promoted rapid evolutionary changes in many species; however, analyses of adaptive phenotypic variation in plants have usually neglected the underlying historical context. Here, we associate phylogeography and phenotypic evolution by analysing t...

journal_title：Journal of evolutionary biology

authors： Maubecin CC,Cosacov A,Sérsic AN,Fornoni J,Benitez-Vieyra S

更新日期：2016-08-01 00:00:00

abstract：:Reproductive parasites such as Wolbachia can spread through uninfected host populations by increasing the relative fitness of the infected maternal lineage. However, empirical estimates of how fast this process occurs are limited. Here we use nucleotide sequences of male-killing Wolbachia bacteria and co-inherited mit...

journal_title：Journal of evolutionary biology

authors： Duplouy A,Hurst GD,O'Neill SL,Charlat S

更新日期：2010-01-01 00:00:00

abstract：:Characterizing the genetic basis of among-species variation in lifespan is a major goal of evolutionary gerontology research, but the very feature that defines separate species - the inability to interbreed - makes achieving this goal impractical, if not impossible, for most taxa. Pristionchus nematodes provide an int...

journal_title：Journal of evolutionary biology

authors： Weadick CJ,Sommer RJ

更新日期：2017-03-01 00:00:00

abstract：:The action of natural selection is expected to reduce the effective population size of a nonrecombining chromosome, and this is thought to be the chief factor leading to genetic degeneration of Y-chromosomes, which cease recombining during their evolution from ordinary chromosomes. Low effective population size of Y c...

journal_title：Journal of evolutionary biology

authors： Laporte V,Filatov DA,Kamau E,Charlesworth D

更新日期：2005-03-01 00:00:00

abstract：:Females in species that produce broods of multiple offspring need to partition resources among simultaneously growing ova, embryos or neonates. In birds, the duration of growth of a single egg exceeds the ovulation interval, and when maternal resources are limited, a temporal overlap among several developing follicles...

journal_title：Journal of evolutionary biology

authors： Young RL,Badyaev AV

更新日期：2004-11-01 00:00:00

abstract：:Our understanding of how fast mating behaviour evolves in insects is rather poor due to a lack of comparative studies among insect groups for which phylogenetic relationships are known. Here, we present a detailed study of the mating behaviour of 27 species of Sepsidae (Diptera) for which a well-resolved and supported...

journal_title：Journal of evolutionary biology

authors： Puniamoorthy N,Ismail MR,Tan DS,Meier R

更新日期：2009-11-01 00:00:00

abstract：:The presence of phylogenetic signal is assumed to be ubiquitous. However, for microorganisms, this may not be true given that they display high physiological flexibility and have fast regeneration. This may result in fundamentally different patterns of resemblance, that is, in variable strength of phylogenetic signal....

journal_title：Journal of evolutionary biology

authors： Krause S,van Bodegom PM,Cornwell WK,Bodelier PL

更新日期：2014-06-01 00:00:00

abstract：:Theoretical models predict that parasite relatedness affects the outcome of competition between parasites, and the evolution of parasite virulence. We examined whether parasite relatedness affects competition between parasitic plants (Cuscuta europaea) that share common host plants (Urtica dioica). We infected hosts w...

journal_title：Journal of evolutionary biology

authors： Puustinen S,Koskela T,Mutikainen P

更新日期：2004-07-01 00:00:00

abstract：:Sexual selection on male coloration has been implicated in the evolution of colourful species flocks of East African cichlid fish. During adaptive radiations, animals diverge in multiple phenotypic traits, but the role of physiology has received limited attention. Here, we report how divergence in physiology may contr...

journal_title：Journal of evolutionary biology

authors： Dijkstra PD,Wiegertjes GF,Forlenza M,van der Sluijs I,Hofmann HA,Metcalfe NB,Groothuis TG

更新日期：2011-12-01 00:00:00

abstract：:Understanding how phenotypic plasticity evolves and in turn affects the course of evolution is a major challenge in modern biology. By definition, biological species are reproductively isolated, but many animals fail to distinguish between conspecifics and closely related heterospecifics. In some cases, phenotypic pla...

journal_title：Journal of evolutionary biology

authors： Drury JP,Anderson CN,Grether GF

更新日期：2015-08-01 00:00:00

abstract：:The origin of endemic South American canid fauna has been traditionally linked with the rise of the Isthmus of Panama, suggesting that diversification of the dog fauna on this continent occurred very rapidly. Nevertheless, despite its obvious biogeographic appeal, the tempo of Canid evolution in South America has neve...

journal_title：Journal of evolutionary biology

authors： Perini FA,Russo CA,Schrago CG

更新日期：2010-02-01 00:00:00

abstract：:Sexual differences are often dramatic and widespread across taxa. Their extravagance and ubiquity can be puzzling because the common underlying genome of males and females is expected to impede rather than foster phenotypic divergence. Widespread dimorphism, despite a shared genome, may be more readily explained by co...

journal_title：Journal of evolutionary biology

authors： Wyman MJ,Stinchcombe JR,Rowe L

更新日期：2013-10-01 00:00:00

abstract：:The majority of flowering plants rely on animals as pollen vectors. Thus, plant mating systems and pollen dispersal are strongly influenced by pollinator behaviour. In Australian sexually deceptive orchids pollinated by male thynnine wasps, outcrossing and extensive pollen flow is predicted due to floral deception, wh...

journal_title：Journal of evolutionary biology

authors： Whitehead MR,Linde CC,Peakall R

更新日期：2015-08-01 00:00:00

abstract：:Adding new taxa to morphological phylogenetic analyses without substantially revising the set of included characters is a common practice, with drawbacks (undersampling of relevant characters) and potential benefits (character selection is not biased by preconceptions over the affinities of the 'retrofitted' taxon). R...

journal_title：Journal of evolutionary biology

authors： Lee MS

更新日期：2013-12-01 00:00:00

abstract：:In a simulation model we investigated how much of the initial genetic variation that is retained in a population after a dominant mutation has brought apomixis to fixation in it. A marker allele associated with the apomixis mutation is generally retained after the fixation of apomixis, particularly if the two alleles ...

journal_title：Journal of evolutionary biology

authors： Adolfsson S,Bengtsson BO

更新日期：2007-09-01 00:00:00

abstract：:When individuals interact, phenotypic variation can be partitioned into direct genetic effects (DGEs) of the individuals' own genotypes, indirect genetic effects (IGEs) of their social partners' genotypes and epistatic interactions between the genotypes of interacting individuals ('genotype-by-genotype (GxG) epistasis...

journal_title：Journal of evolutionary biology

authors： Buttery NJ,Thompson CR,Wolf JB

更新日期：2010-08-01 00:00:00

abstract：:Genetic diversity in animal immune systems is usually beneficial. In hybrid recombinants, this is less clear, as the immune system could also be impacted by genetic conflicts. In the European house mouse hybrid zone, the long-standing impression that hybrid mice are more highly parasitized and less fit than parentals ...

journal_title：Journal of evolutionary biology

authors： Balard A,Jarquín-Díaz VH,Jost J,Martincová I,Ďureje Ľ,Piálek J,Macholán M,Goüy de Bellocq J,Baird SJE,Heitlinger E

更新日期：2019-12-13 00:00:00

abstract：:Medullary bone (MB) is a special endosteal tissue forming in the bones of female birds during egg laying to serve as a labile calcium reservoir for building the hard eggshell. Therefore, the presence of MB reported in multiple nonavian dinosaurs is currently considered as evidence that those specimens were sexually ma...

journal_title：Journal of evolutionary biology

authors： Prondvai E

更新日期：2017-03-01 00:00:00

abstract：:Phenotypic divergence in allopatry can facilitate speciation by reducing the likelihood that individuals of different lineages hybridize during secondary contact. However, few studies have established the causes of reproductive isolation in the crucial early stages of secondary contact. Here, we establish behavioural ...

journal_title：Journal of evolutionary biology

authors： Heathcote RJ,While GM,MacGregor HE,Sciberras J,Leroy C,D'Ettorre P,Uller T

更新日期：2016-05-01 00:00:00

abstract：:Vertebrates commonly use carotenoid-based traits as social signals. These can reliably advertise current nutritional status and health because carotenoids must be acquired through the diet and their allocation to ornaments is traded-off against other self-maintenance needs. We propose that the coloration more generall...

journal_title：Journal of evolutionary biology

authors： Mougeot F,Martínez-Padilla J,Bortolotti GR,Webster LM,Piertney SB

更新日期：2010-03-01 00:00:00

abstract：:Male-killing bacteria are thought to persist in host populations by vertical transmission and conferring direct and/or indirect fitness benefits to their hosts. Here, we test the role of indirect fitness benefits accrued from resource reallocation in species that engage in sibling egg cannibalism. We found that a sing...

journal_title：Journal of evolutionary biology

authors： Elnagdy S,Majerus ME,Handley LJ

更新日期：2011-10-01 00:00:00