Experimental evolution of protozoan traits in response to interspecific competition.

abstract：:Temperature changes in the environment, which realistically include environmental fluctuations, can create both plastic and evolutionary responses of traits. Sexes might differ in either or both of these responses for homologous traits, which in turn has consequences for sexual dimorphism and its evolution. Here, we i...

journal_title：Journal of evolutionary biology

authors： Hallsson LR,Björklund M

更新日期：2012-08-01 00:00:00

abstract：:As females and males have different roles in reproduction, they are expected to require different nutrients for the expression of reproductive traits. However, due to their shared genome, both sexes may be constrained in the regulation of nutrient intake that maximizes sex-specific fitness. Here, we used the Geometric...

journal_title：Journal of evolutionary biology

authors： Ng SH,Simpson SJ,Simmons LW

更新日期：2019-10-01 00:00:00

abstract：:The evolutionary mechanisms underlying the maintenance of invariant traits are poorly understood, partly because the lack of variance makes these mechanisms difficult to study. Although the number of cotyledons that plant species produce is highly canalized, populations of plants frequently contain individuals with ab...

journal_title：Journal of evolutionary biology

authors： Conner JK,Agrawal AA

更新日期：2005-01-01 00:00:00

abstract：:I examined the intrinsic postzygotic incompatibilities between two pupfishes, Cyprinodon elegans and Cyprinodon variegatus. Laboratory hybridization experiments revealed evidence of strong postzygotic isolation. Male hybrids have very low fertility, and the survival of backcrosses into C. elegans was substantially red...

journal_title：Journal of evolutionary biology

authors： Tech C

更新日期：2006-11-01 00:00:00

abstract：:Theory predicts that lifespan will depend on the dietary intake of an individual, the allocation of resources towards reproduction and the costs imposed by the opposite sex. Although females typically bear the majority of the cost of offspring production, nuptial feeding invertebrates provide an ideal opportunity to e...

journal_title：Journal of evolutionary biology

authors： Hall MD,Bussière LF,Brooks R

更新日期：2009-04-01 00:00:00

abstract：:Polymorphic inversions are ubiquitous across the animal kingdom and are frequently associated with clines in inversion frequencies across environmental gradients. Such clines are thought to result from selection favouring local adaptation; however, empirical tests are scarce. The seaweed fly Coelopa frigida has an α/β...

journal_title：Journal of evolutionary biology

authors： Wellenreuther M,Rosenquist H,Jaksons P,Larson KW

更新日期：2017-06-01 00:00:00

abstract：:Many animals provide parental care to offspring. Parental sex-roles vary extensively across taxa, and such patterns are considered well documented. However, information on amphibians is lacking relative to other vertebrate groups. We combine natural history observations with functional and historical analyses to exami...

journal_title：Journal of evolutionary biology

authors： Delia J,Bravo-Valencia L,Warkentin KM

更新日期：2017-05-01 00:00:00

abstract：:Habitats are spatially and temporally variable, and organisms must be able to track these changes. One potential mechanism for this is dispersal by flight. Therefore, we would expect flying animals to show adaptations in wing shape related to habitat variation. In this work, we explored variation in wing shape in rela...

journal_title：Journal of evolutionary biology

authors： Outomuro D,Dijkstra KD,Johansson F

更新日期：2013-09-01 00:00:00

abstract：:One explanation for hybridization between species is the fitness benefits it occasionally confers to the hybridizing individuals. This explanation is possible in species that have evolved alternative male reproductive tactics: individuals with inferior tactics might be more prone to hybridization provided it increases...

journal_title：Journal of evolutionary biology

authors： Tynkkynen K,Raatikainen KJ,Häkkilä M,Haukilehto E,Kotiaho JS

更新日期：2009-12-01 00:00:00

abstract：:Recent work [Ecoscience (2000) vol. 7, 395-397] suggests that the burying beetle Nicrophorus pustulatus may have undergone a remarkable host shift, exploiting snake eggs rather than carrion as resources for breeding. We conducted behavioural and physiological experiments to examine the hypothesis of a host shift and t...

journal_title：Journal of evolutionary biology

authors： Smith G,Trumbo ST,Sikes DS,Scott MP,Smith RL

更新日期：2007-11-01 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：:Understanding factors involved in maintaining stable hybrid zones is important for predicting the ultimate fate of the interacting taxa, but the relative importance of mechanisms such as ecological selection and intrinsic reproductive isolation remains unclear. Most studies of reproductive isolation in hybrid zones ha...

journal_title：Journal of evolutionary biology

authors： McKenzie JL,Bucking C,Moreira A,Schulte PM

更新日期：2017-04-01 00:00:00

abstract：:Warning coloration is a widespread strategy to alert predators about prey unprofitability. The success of this strategy partly depends on predators being able to learn and recognize certain signals as indicators of toxicity, and theory predicts that this is easier if signals converge on similar colours. However, the d...

journal_title：Journal of evolutionary biology

authors： Arenas LM,Stevens M

更新日期：2017-07-01 00:00:00

abstract：:Local adaptation is commonly observed in nature: organisms perform well in their natal environment, but poorly outside it. Correlations between traits and latitude, or latitudinal clines, are among the most common pieces of evidence for local adaptation, but identifying the traits under selection and the selective age...

journal_title：Journal of evolutionary biology

authors： Muir CD,Angert AL

更新日期：2017-12-01 00:00:00

abstract：:Reproductive division of labour is common in many societies, including those of eusocial insects, cooperatively breeding vertebrates, and most forms of multicellularity. However, conflict over what is best for the individual vs. the group can prevent an optimal division of labour from being achieved. In the social amo...

journal_title：Journal of evolutionary biology

authors： Votaw HR,Ostrowski EA

更新日期：2017-11-01 00:00:00

abstract：:We estimated broad-sense heritabilities (H(2)) of 13 female and seven male life-history traits of the Glanville fritillary butterfly (Melitaea cinxia) under semi-natural conditions in a large outdoor population cage. The analysis was based on full-sib families collected as young larvae in the field and reared under co...

journal_title：Journal of evolutionary biology

authors： Klemme I,Hanski I

更新日期：2009-09-01 00:00:00

abstract：:To assess whether floral integration patterns result from the action of pollinator selection on functionally related traits, we compared corolla integration patterns in eight Schizanthus species differing in pollination systems and in their degree of pollinator dependence across a molecular phylogeny. Integration patt...

journal_title：Journal of evolutionary biology

authors： Pérez F,Arroyo MT,Medel R

更新日期：2007-09-01 00:00:00

abstract：:Many palaeontological studies have investigated the evolution of entire body plans, generally relying on discrete character-taxon matrices. In contrast, macroevolutionary studies performed by neontologists have mostly focused on morphometric traits. Although these data types are very different, some studies have sugge...

journal_title：Journal of evolutionary biology

authors： Mongiardino Koch N,Ceccarelli FS,Ojanguren-Affilastro AA,Ramírez MJ

更新日期：2017-04-01 00:00:00

abstract：:In a recent article, Nowak et al. claim that the mathematical basis of inclusive fitness theory does not stand to scrunity and to have found an alternative explanation for eusociality. We show that these claims are based on false premises, many of which have been exposed more than 25 years ago, such as misrepresentati...

journal_title：Journal of evolutionary biology

authors： Rousset F,Lion S

更新日期：2011-06-01 00:00:00

abstract：:Theory suggests that intraspecific competition associated with direct competition between inbred and outbred individuals should be an important determinant of the severity of inbreeding depression. The reason is that, if outbred individuals are stronger competitors than inbred ones, direct competition should have a di...

journal_title：Journal of evolutionary biology

authors： Miller M,Ratz T,Richardson J,Smiseth PT

更新日期：2019-01-01 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：: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：: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：:Animals must allocate some proportion of their time to detecting predators. In birds and mammals, such anti-predator vigilance has been well studied, and we know that it may be influenced by a variety of intrinsic and extrinsic factors. Despite hundreds of studies focusing on vigilance and suggestions that there are i...

journal_title：Journal of evolutionary biology

authors： Blumstein DT,Lea AJ,Olson LE,Martin JG

更新日期：2010-05-01 00:00:00

abstract：:Despite growing evidence for nongenetic inheritance, the ecological conditions that favour the evolution of heritable parental or grandparental effects remain poorly understood. Here, we systematically explore the evolution of parental effects in a patch-structured population with locally changing environments. When s...

journal_title：Journal of evolutionary biology

authors： Kuijper B,Johnstone RA

更新日期：2016-02-01 00:00:00

abstract：:Many organisms at northern latitudes have responded to climate warming by advancing their spring phenology. Birds are known to show earlier timing of spring migration and reproduction in response to warmer springs. However, species show heterogeneous phenological responses to climate warming, with those that have not ...

journal_title：Journal of evolutionary biology

authors： Møller AP,Rubolini D,Saino N

更新日期：2017-06-01 00:00:00

abstract：:Sexual selection can explain major micro- and macro-evolutionary patterns. Much of current theory predicts that the strength of sexual selection (i) is driven by the relative abundance of males and females prepared to mate (i.e. the operational sex ratio, OSR) and (ii) can be generally estimated by calculating intra-s...

journal_title：Journal of evolutionary biology

authors： Klug H,Heuschele J,Jennions MD,Kokko H

更新日期：2010-03-01 00:00:00

abstract：:We examine the maintenance of a plumage polymorphism, variation in plumages among the same age and sex class within a population, in a population of Swainson's Hawks. We take advantage of 32 years of data to examine two prevalent hypotheses used to explain the persistence of morphs: apostatic selection and heterozygou...

journal_title：Journal of evolutionary biology

authors： Briggs CW,Collopy MW,Woodbridge B

更新日期：2011-10-01 00:00:00

abstract：:Many animals display complex colour patterns that comprise several adjacent, often contrasting colour patches. Combining patches of complementary colours increases the overall conspicuousness of the complex pattern, enhancing signal detection. Therefore, selection for conspicuousness may act not only on the design of ...

journal_title：Journal of evolutionary biology

authors： Pérez I de Lanuza G,Font E

更新日期：2016-05-01 00:00:00

abstract：:A theoretical debate about whether parasitoids should be time or egg limited now recognizes both as feasible, and interest has turned to determining the circumstances under which each might arise in the field, and their implications for parasitoid behaviour and evolution. Egg loads of parasitoids sampled from the fiel...

journal_title：Journal of evolutionary biology

authors： Phillips CB,Kean JM

更新日期：2017-07-01 00:00:00