Altitudinal flower size variation correlates with local pollinator size in a bumblebee-pollinated herb, Prunella vulgaris L. (Lamiaceae).

abstract：:Insects harbour a wild diversity of symbionts that can spread and persist within populations by providing benefits to their host. The pea aphid Acyrthosiphon pisum maintains a facultative symbiosis with the bacterium Hamiltonella defensa, which provides enhanced resistance against the aphid parasitoid Aphidius ervi. A...

journal_title：Journal of evolutionary biology

authors： Dion E,Zélé F,Simon JC,Outreman Y

更新日期：2011-04-01 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：:Any population whose members are subject to extrinsic mortality should exhibit an increase in mortality with age. Nevertheless, the prevailing opinion is that populations of adult damselflies and dragonflies do not exhibit such senescence. Here, we challenge this contention by fitting a range of demographic models to ...

journal_title：Journal of evolutionary biology

authors： Sherratt TN,Hassall C,Laird RA,Thompson DJ,Cordero-Rivera A

更新日期：2011-04-01 00:00:00

abstract：:Senescence is the age-related deterioration of the phenotype, explained by accumulation of mutations, antagonistic pleiotropy, free radicals or other mechanisms. I investigated patterns of actuarial senescence in a sample of 169 species of birds in relation to latitude and migration, by analysing longevity records adj...

journal_title：Journal of evolutionary biology

authors： Møller AP

更新日期：2007-03-01 00:00:00

abstract：:The late Pleistocene was a time of environmental change, culminating in an extinction event. Few fossil localities record a temporal series of carnivore fossil populations from this interesting interval as well as Rancho La Brea (RLB). We analysed mandibles of Smilodon fatalis from RLB using 2-D geometric morphometric...

journal_title：Journal of evolutionary biology

authors： Meachen JA,O'Keefe FR,Sadleir RW

更新日期：2014-04-01 00:00:00

abstract：:Environmental manipulations have consistently demonstrated a cost of reproduction in the capital-breeding seed beetle, Callosobruchus maculatus, as females deprived of seeds or mates lay fewer eggs and thereby increase their longevity. Yet fecundity and longevity tend to be positively correlated within populations, pe...

journal_title：Journal of evolutionary biology

authors： Messina FJ,Fry JD

更新日期：2003-05-01 00:00:00

abstract：:One of the most important defensive host traits against brood parasitism is the detection and ejection of parasitic eggs from their nests. Here, we explore the possible role of olfaction in this defensive behaviour. We performed egg-recognition tests in magpie Pica pica nests with model eggs resembling those of parasi...

journal_title：Journal of evolutionary biology

authors： Soler JJ,Pérez-Contreras T,De Neve L,Macías-Sánchez E,Møller AP,Soler M

更新日期：2014-06-01 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：:It has been hypothesized that in ancient apomictic, nonrecombining lineages the two alleles of a single copy gene will become highly divergent as a result of the independent accumulation of mutations (Meselson effect). We used a partial sequence of the elongation factor-1alpha (ef-1alpha) and the heat shock protein 82...

journal_title：Journal of evolutionary biology

authors： Schaefer I,Domes K,Heethoff M,Schneider K,Schön I,Norton RA,Scheu S,Maraun M

更新日期：2006-01-01 00:00:00

abstract：:How complex life cycles of parasites are maintained is still a fascinating and unresolved topic. Complex life cycles using three host species, free-living stages, asexual and sexual reproduction are widespread in parasitic helminths. For such life cycles, we propose here that maintaining a second intermediate host in ...

journal_title：Journal of evolutionary biology

authors： Rauch G,Kalbe M,Reusch TB

更新日期：2005-07-01 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：:Temperature variation is one of the primary challenges facing ectotherms, and the ability to tolerate a range of thermal environments is critical for setting current and future species distributions. Low temperature is particularly challenging for ectotherms because winter conditions have strong latitudinal and tempor...

journal_title：Journal of evolutionary biology

authors： Teets NM,Hahn DA

更新日期：2018-04-01 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

abstract：:The satyr of Greek mythology was half-man, half-goat, with an animal persona signifying immoderate sexual appetites. In biology, satyrization is the disruption of reproduction in matings between closely-related species. Interestingly, its effects are often reciprocally asymmetric, manifesting more strongly in one dire...

journal_title：Journal of evolutionary biology

authors： Leigh S,Rostant WG,Taylor MI,Alphey L,Chapman T

更新日期：2020-11-06 00:00:00

abstract：:The [PSI(+)] prion in yeast has been shown to improve short-term growth in some environments, but its effects on rates of adaptation have not been assessed before now. We adapted three yeast genotypes to three novel environments in the presence and the absence of the prion. There were significant differences in adapta...

journal_title：Journal of evolutionary biology

authors： Joseph SB,Kirkpatrick M

更新日期：2008-05-01 00:00:00

abstract：:Much of the variation among insects is derived from the different ways that chitin has been moulded to form rigid structures, both internal and external. In this study, we identify a highly conserved expression pattern in an insect-only gene family, the Osiris genes, that is essential for development, but also plays a...

journal_title：Journal of evolutionary biology

authors： Smith CR,Morandin C,Noureddine M,Pant S

更新日期：2018-04-01 00:00:00

abstract：:In studies of sexual selection, larger size is often argued to increase male fitness, and relatively smaller males are explained by genetic and/or environmental variation. We demonstrate that a size-development life-history trade-off could underlie the maintenance of a broad, unimodal distribution of size in male redb...

journal_title：Journal of evolutionary biology

authors： Kasumovic MM,Andrade MC

更新日期：2009-02-01 00:00:00

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：:Induced defences are a typical case of phenotypic plasticity, involving benefits for 'plastic' phenotypes under environments with variable degree of stress. Defence induction, in turn, could be energetically expensive incurring costs on growth and reproduction. In this study, we investigated the genetic variation and ...

journal_title：Journal of evolutionary biology

authors： Castañeda LE,Figueroa CC,Nespolo RF

更新日期：2010-11-01 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：:Three different isolated populations of the slave-making ant Rossomyrmex minuchae, sympatric with its obligate host Proformica longiseta, are known from the high mountains of southern Spain. To test the prediction that the slave-maker and its host represent a coevolutionary geographical mosaic, we studied the variatio...

journal_title：Journal of evolutionary biology

authors： Ruano F,Devers S,Sanllorente O,Errard C,Tinaut A,Lenoir A

更新日期：2011-05-01 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：:Sexual selection theory predicts that paternal quality should drive female investment in progeny. We tested whether polyandrous female side-blotched lizards, Uta stansburiana, would adjust within-clutch progeny investment according to sire phenotypes. In two different years, polyandrous females selectively used sperm ...

journal_title：Journal of evolutionary biology

authors： Calsbeek R,Sinervo B

更新日期：2004-03-01 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：:Seasonal time constraints are usually stronger at higher than lower latitudes and can exert strong selection on life-history traits and the correlations among these traits. To predict the response of life-history traits to environmental change along a latitudinal gradient, information must be obtained about genetic va...

journal_title：Journal of evolutionary biology

authors： Sniegula S,Golab MJ,Drobniak SM,Johansson F

更新日期：2018-06-01 00:00:00

abstract：:In the pill bug Armadillidium vulgare (Crustacea, Oniscidea), Wolbachia facilitates its spread through vertical transmission via the eggs by inducing feminization of genetic males. The spread of feminizing Wolbachia within and across populations is therefore expected to influence mitochondrial DNA (mtDNA) genetic stru...

journal_title：Journal of evolutionary biology

authors： Verne S,Johnson M,Bouchon D,Grandjean F

更新日期：2012-02-01 00:00:00

abstract：:Large genetic variations in starvation tolerance in animals indicate that there are multiple strategies to cope with low-nutrient conditions. Fruit flies (Drosophila melanogaster) typically respond to starvation by suppressing sleep and enhancing locomotor activity presumably to search for food. However, we hypothesiz...

journal_title：Journal of evolutionary biology

authors： Miura M,Takahashi A

更新日期：2019-10-01 00:00:00

abstract：:Many forms of reproductive isolation contribute to speciation, and early-acting barriers may be especially important, because they have the first opportunity to limit gene flow. Ecogeographic isolation occurs when intrinsic traits of taxa contribute to disjunct geographic distributions, reducing the frequency of inter...

journal_title：Journal of evolutionary biology

authors： Sobel JM,Stankowski S,Streisfeld MA

更新日期：2019-06-01 00:00:00

abstract：:Vertebrates respond to environmental stressors through the neuro-endocrine stress response, which involves the production of glucocorticoids. We have selected independent, duplicate divergent lines of zebra finches for high, low and control corticosterone responses to a mild stressor. This experiment has shown that ov...

journal_title：Journal of evolutionary biology

authors： Evans MR,Roberts ML,Buchanan KL,Goldsmith AR

更新日期：2006-03-01 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