The diapause decision as a cascade switch for adaptive developmental plasticity in body mass in a butterfly.

abstract：:Theory defines conditions under which sympatric speciation may occur, and several possible examples of the process in action have been identified. In most cases, organisms specialize onto habitats that fall into discrete categories, such as host species used by herbivores and parasites. Ecological specialization withi...

journal_title：Journal of evolutionary biology

authors： Van Buskirk J

更新日期：2014-03-01 00:00:00

abstract：:When breeding, male moor frogs Rana arvalis develop a bright blue dorsal coloration which varies in intensity between males. We tested whether this colour acts as a potential signal of a male's genetic quality to female moor frogs by artificially crossing pairs of males differing in the extent of the blue coloration t...

journal_title：Journal of evolutionary biology

authors： Sheldon BC,Arponen H,Laurila A,Crochet PA,Merilä J

更新日期：2003-11-01 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：: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：:Although many of the statistical techniques used in comparative biology were originally developed in quantitative genetics, subsequent development of comparative techniques has progressed in relative isolation. Consequently, many of the new and planned developments in comparative analysis already have well-tested solu...

journal_title：Journal of evolutionary biology

authors： Hadfield JD,Nakagawa S

更新日期：2010-03-01 00:00:00

abstract：:Pseudochondrostoma duriense and Achondrostoma oligolepis are two Iberian endemic cyprinid fish species that occur in sympatry over most of their distribution range and that are suspected to hybridize in nature. Here, we employed a combination of mitochondrial and microsatellite markers to explore the extent of introgr...

journal_title：Journal of evolutionary biology

authors： Aboim MA,Mavárez J,Bernatchez L,Coelho MM

更新日期：2010-04-01 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：: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：:Phenotypic plasticity can help organisms cope with variation in their current environment, including temperature variation, but not all environments are equally variable. In the least variable or extreme environments, plasticity may no longer be used. In this case, the plasticity could be lost altogether, or it could ...

journal_title：Journal of evolutionary biology

authors： Nielsen ME

更新日期：2017-10-01 00:00:00

abstract：:Female insects that mate multiply tend to have increased lifetime fitness, apparently because of greater access to male-derived resources (e.g. sperm, nuptial gifts) that elevate fertility/fecundity. Experiments that standardize the number of matings per female also show that polyandry can improve aspects of offspring...

journal_title：Journal of evolutionary biology

authors： Jennions MD,Drayton JM,Brooks R,Hunt J

更新日期：2007-07-01 00:00:00

abstract：:Sexual selection has been suggested to be an important driver of speciation in cichlid fishes of the Great Lakes of Africa, and the presence of male egg dummies is proposed to have played a key role. Here, we investigate how mouthbrooding and egg dummies have evolved in Tanganyikan cichlids, the lineage which seeded t...

journal_title：Journal of evolutionary biology

authors： Amcoff M,Gonzalez-Voyer A,Kolm N

更新日期：2013-11-01 00:00:00

abstract：:The tuatara (Sphenodon punctatus) is the only living representative of Rhynchocephalia, a group of small vertebrates that originated about 250 million years ago. The tuatara has been referred to as a living fossil; however, the group to which it belongs included a much greater diversity of forms in the Mesozoic. We ex...

journal_title：Journal of evolutionary biology

authors： Meloro C,Jones ME

更新日期：2012-11-01 00:00:00

abstract：:Social group size may affect the potential for sperm competition, and this in turn may favour ontogenetic adjustments in testicular mass according to the likely requirements for sperm and spermatophore production. In a number of comparative analyses of testis mass among vertebrate species that differ in mating system ...

journal_title：Journal of evolutionary biology

authors： Tan GN,Govedich FR,Burd M

更新日期：2004-05-01 00:00:00

abstract：:Little is known about how inbreeding alters selection on ecologically relevant traits. Inbreeding could affect selection by changing the distribution of traits and/or fitness, or by changing the causal effect of traits on fitness. Here, I test whether selection on egg size varies with the degree of inbreeding in the s...

journal_title：Journal of evolutionary biology

authors： Fox CW

更新日期：2013-01-01 00:00:00

abstract：:Maternal inheritance of mitochondrial DNA (mtDNA) was originally thought to prevent any response to selection on male phenotypic variation attributable to mtDNA, resulting in a male-biased mtDNA mutation load ("mother's curse"). However, the theory underpinning this claim implicitly assumes that a male's mtDNA has no ...

journal_title：Journal of evolutionary biology

authors： Keaney TA,Wong HWS,Dowling DK,Jones TM,Holman L

更新日期：2020-02-01 00:00:00

abstract：:We studied the correlations between offspring sex ratio, UV coloration and overwinter survival in a population of blue tits, breeding in Gotland, Sweden, over three consecutive breeding seasons. In 2 of 3 years, we found that females paired to males with relatively brighter UV-coloration produced a greater proportion ...

journal_title：Journal of evolutionary biology

authors： Griffith SC,Ornborg J,Russell AF,Andersson S,Sheldon BC

更新日期：2003-09-01 00:00:00

abstract：:Phylogenetic comparative methods are extremely commonly used in evolutionary biology. In this paper, I highlight some of the problems that are frequently encountered in comparative analyses and review how they can be fixed. In broad terms, the problems boil down to a lack of appreciation of the underlying assumptions ...

journal_title：Journal of evolutionary biology

authors： Freckleton RP

更新日期：2009-07-01 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：:It is now widely appreciated that competition between kin inhibits the evolution of altruism. In standard population genetics models, it is difficult for indiscriminate altruism towards social partners to be favoured at all. The reason is that while limited dispersal increases the kinship of social partners it also in...

journal_title：Journal of evolutionary biology

authors： Gardner A,West SA

更新日期：2006-09-01 00:00:00

abstract：:Dispersal is one of the most important precopulatory inbreeding avoidance mechanisms and subject to landscape related selection pressures. In small populations, inbreeding within and between populations may strongly affect population dynamics if it reduces fitness and gene-flow. While inbreeding avoidance is generally...

journal_title：Journal of evolutionary biology

authors： Bonte D

更新日期：2009-07-01 00:00:00

abstract：:Estimates of genetic variation and selection allow for quantitative predictions of evolutionary change, at least in controlled laboratory experiments. Natural populations are, however, different in many ways, and natural selection on heritable traits does not always result in phenotypic change. To test whether we were...

journal_title：Journal of evolutionary biology

authors： Postma E,Visser J,Van Noordwijk AJ

更新日期：2007-09-01 00:00:00

abstract：:Despite the ubiquitous nature of sperm storage in invertebrates, relatively little is known about its costs, or the impact that immune activation can have on a female's ability to maintain viable sperm stores. We explored the effects of an immune challenge on sperm storage under food-limited and ad libitum conditions ...

journal_title：Journal of evolutionary biology

authors： McNamara KB,van Lieshout E,Simmons LW

更新日期：2014-01-01 00:00:00

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：:Stingless bees (Meliponini) construct their own species-specific nest entrance. The size of this entrance is under conflicting selective pressures. Smaller entrances are easier to defend; however, a larger entrance accommodates heavier forager traffic. Using a comparative approach with 26 species of stingless bees, we...

journal_title：Journal of evolutionary biology

authors： Couvillon MJ,Wenseleers T,Imperatriz-Fonseca VL,Nogueira-Neto P,Ratnieks FLW

更新日期：2008-01-01 00:00:00

abstract：:Phenological shifts are the most widely reported ecological responses to climate change, but the requirements to distinguish their causes (i.e. phenotypic plasticity vs. microevolution) are rarely met. To do so, we analysed almost two decades of parturition data from a wild population of North American red squirrels (...

journal_title：Journal of evolutionary biology

authors： Lane JE,McAdam AG,McFarlane SE,Williams CT,Humphries MM,Coltman DW,Gorrell JC,Boutin S

更新日期：2018-06-01 00:00:00

abstract：:In the wing dimorphic sand cricket, Gryllus firmus, there is a pronounced trade-off between flight capability and fecundity. This trade-off is found both between morphs and within the macropterous morph, in which fecundity is negatively correlated with the mass of the principle flight muscles, the dorso-longitudinal m...

journal_title：Journal of evolutionary biology

authors： Roff DA,Gélinas MB

更新日期：2003-01-01 00:00:00

abstract：:Multiple functional queens in a colony (polygyny) and multiple mating by queens (polyandry) in social insects challenge kin selection, because they dilute inclusive fitness benefits from helping. Colonies of the ant Plagiolepis pygmaea brash contain several hundreds of multiply mated queens. Yet, within-colony related...

journal_title：Journal of evolutionary biology

authors： Thurin N,Aron S

更新日期：2009-12-01 00:00:00

abstract：:Meiosis in Saccharomyces yeast produces four haploid gametes that usually fuse with each other, an extreme form of self-fertilization among the products of a single meiosis known as automixis. The gametes signal to each other with sex pheromone. Better-quality gametes produce stronger signals and are preferred as mate...

journal_title：Journal of evolutionary biology

authors： Tazzyman SJ,Seymour RM,Pomiankowski A,Greig D

更新日期：2012-08-01 00:00:00

abstract：:The nutrient limitation hypothesis provides a nongenetic explanation for the evolution of life cycles that retain both haploid and diploid phases: differences in nutrient requirements and uptake allow haploids to override the potential genetic advantages provided by diploidy under certain nutrient limiting conditions....

journal_title：Journal of evolutionary biology

authors： Mable BK

更新日期：2001-01-08 00:00:00

abstract：:In an early challenge to an aspect of Darwin's theory of natural selection, Jackson Mivart contended that milk could not have evolved 'from a scarcely nutritious fluid from an accidentally hypertrophied cutaneous gland'. The evolutionary change from a gland secretion to milk involves an increase in calcium and protein...

journal_title：Journal of evolutionary biology

authors： Holt C,Carver JA

更新日期：2012-07-01 00:00:00