Hybridization could be a common phenomenon within the highly diverse lizard genus Liolaemus.

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：:Co-inheritance in life-history traits may result in unpredictable evolutionary trajectories if not accounted for in life-history models. Iteroparity (the reproductive strategy of reproducing more than once) in Atlantic salmon (Salmo salar) is a fitness trait with substantial variation within and among populations. In ...

journal_title：Journal of evolutionary biology

authors： Aykanat T,Ozerov M,Vähä JP,Orell P,Niemelä E,Erkinaro J,Primmer CR

更新日期：2019-04-01 00:00:00

abstract：:Isolation allows populations to diverge and to fix different alleles. Deleterious alleles that reach locally high frequencies contribute to genetic load, especially in inbred or selfing populations, in which selection is relaxed. In the event of secondary contact, the recessive portion of the genetic load is masked in...

journal_title：Journal of evolutionary biology

authors： Harkness A,Brandvain Y,Goldberg EE

更新日期：2019-05-01 00:00:00

abstract：:Positive correlations between heterozygosity and fitness traits are frequently observed, and it has been hypothesized, but rarely tested experimentally, that parasites play a key role in mediating the heterozygosity-fitness association. We evaluated this hypothesis in a wild great tit (Parus major) population by testi...

journal_title：Journal of evolutionary biology

authors： Voegeli B,Saladin V,Wegmann M,Richner H

更新日期：2012-03-01 00:00:00

abstract：:In Drosophila melanogaster, mating radically transforms female physiology and behaviour. Post-mating responses include an increase in the oviposition rate, a reduction in female receptivity and an activation of the immune system. The fitness consequences of mating are similarly dramatic--females must mate once in orde...

journal_title：Journal of evolutionary biology

authors： Innocenti P,Morrow EH

更新日期：2009-05-01 00:00:00

abstract：:A species' range can be limited when there is no genetic variation for a trait that allows for adaptation to more extreme environments. We study how range expansion occurs by the establishment of a new mutation that affects a quantitative trait in a spatially continuous population. The optimal phenotype for the trait ...

journal_title：Journal of evolutionary biology

authors： Behrman KD,Kirkpatrick M

更新日期：2011-03-01 00:00:00

abstract：:Recent models of mate preference evolution suggest that direct selection on alleles at preference loci and correlated evolution of preference with locally adapted mating cues are more likely to drive the evolution of assortative mate preference than reinforcement. Mate preference evolution in mimetic Heliconius butter...

journal_title：Journal of evolutionary biology

authors： Kronforst MR,Young LG,Gilbert LE

更新日期：2007-01-01 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：:There is considerable evidence for an adaptive role of inversions, but how their genetic content evolves and affects the subsequent evolution of chromosomal polymorphism remains controversial. Here, we track how life-history traits, chromosomal arrangements and 22 microsatellites, within and outside inversions, change...

journal_title：Journal of evolutionary biology

authors： Santos J,Pascual M,Fragata I,Simões P,Santos MA,Lima M,Marques A,Lopes-Cunha M,Kellen B,Balanyà J,Rose MR,Matos M

更新日期：2016-06-01 00:00:00

abstract：:The maintenance of females in gender dimorphic populations requires that they have a fitness advantage to compensate for their loss of male reproductive function. We assess whether inbreeding avoidance provides this advantage in two subdioecious Wurmbea dioica populations by estimating seed production, outcrossing rat...

journal_title：Journal of evolutionary biology

authors： Ramsey M,Vaughton G,Peakall R

更新日期：2006-09-01 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：: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：:Laboratory studies on Drosophila have revealed that resistance to one environmental stress often correlates with resistance to other stresses. There is also evidence on genetic correlations between stress resistance, longevity and other fitness-related traits. The present work investigates these associations using art...

journal_title：Journal of evolutionary biology

authors： Bubliy OA,Loeschcke V

更新日期：2005-07-01 00:00:00

abstract：:A challenge of life-history theory is to explain why animal body size does not continue to increase, given various advantages of larger size. In birds, body size of nestlings and the number of nestlings produced (brood size) have occasionally been shown to be constrained by higher predation on larger nestlings and tho...

journal_title：Journal of evolutionary biology

authors： Brown CR,Brown MB

更新日期：2018-02-01 00:00:00

abstract：:The virulence factor pertactin is expressed by the closely related pathogens Bordetella pertussis, Bordetella parapertussis and Bordetella bronchiseptica. Pertactin is an autotransporter involved in adherence of Bordetella species to the lung epithelium of mammalian hosts, and it is an important component of most curr...

journal_title：Journal of evolutionary biology

authors： Diavatopoulos DA,Hijnen M,Mooi FR

更新日期：2006-11-01 00:00:00

abstract：:Decades of experiments have demonstrated the ecological effect of competition, but experimental evidence for competitive effects on trait evolution is rare. I measured the evolution of six protozoan traits in response to competitors from the inquiline community of pitcher plants. Replicate populations of Colpoda, a ci...

journal_title：Journal of evolutionary biology

authors： terHorst CP

更新日期：2011-01-01 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：:Through simulation, Whitlock showed that when all the alternatives have the same effect size, the weighted z-test is superior to both unweighted z-test and Fisher's method when combining P-values from independent studies. In this paper, we show that under the same situation, the generalized Fisher method due to Lancas...

journal_title：Journal of evolutionary biology

authors： Chen Z

更新日期：2011-04-01 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：:Creationist literature claims that sufficient gaps in morphological continuity exist to classify dinosaurs into several distinct baramins ('created kinds'). Here, I apply the baraminological method called taxon correlation to test for morphological continuity within and between dinosaurian taxa. The results show enoug...

journal_title：Journal of evolutionary biology

authors： Senter P

更新日期：2011-10-01 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：: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：:The reproductive mechanism, that is whether an organism outcrosses, selfs or asexually reproduces, has a substantial impact on the amount and pattern of genetic variation. In this study, we estimate genetic variation and genetic load for a predominately asexual population of Mimulus guttatus, and then compare our resu...

journal_title：Journal of evolutionary biology

authors： Marriage TN,Kelly JK

更新日期：2009-11-01 00:00:00

abstract：:The skulls of animals have to perform many functions. Optimization for one function may mean another function is less optimized, resulting in evolutionary trade-offs. Here, we investigate whether a trade-off exists between the masticatory and sensory functions of animal skulls using echolocating bats as model species....

journal_title：Journal of evolutionary biology

authors： Jacobs DS,Bastian A,Bam L

更新日期：2014-12-01 00:00:00

abstract：:Colour polymorphisms are known to influence receiver behaviour, but how they affect a receiver's ability to detect and recognize individuals in nature is usually unknown. I hypothesized that polymorphic female damselflies represent an evolutionary stable strategy, maintained by trade-offs between the relative apparenc...

journal_title：Journal of evolutionary biology

authors： Fincke OM

更新日期：2015-04-01 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：: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：:The number of mature eggs remaining in the ovaries and the time left for oviposition determine the reproductive decisions of the hyperdiverse guild of insects that require discrete and potentially limiting resources for oviposition (such as seeds, fruits or other insects). A female may run out of eggs before all avail...

journal_title：Journal of evolutionary biology

authors： Deas JB,Hunter MS

更新日期：2014-05-01 00:00:00

abstract：:Adaptations to pollution among long-lived trees have rarely been documented, possibly because of their long reproductive cycles and the evolutionarily short timescales of anthropogenic pollution. Here, I present the results of a greenhouse experiment that suggest rapid evolutionary adaptation of mountain birch [Betula...

journal_title：Journal of evolutionary biology

authors： Eränen JK

更新日期：2008-03-01 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