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 intensifies local competition. One solution that has received very little attention is if individuals disperse as groups (budding dispersal), as this relaxes local competition without reducing kinship. Budding behaviour is widespread through all levels of biological organization, from early protocellular life to cooperatively breeding vertebrates. We model the effects of individual dispersal, budding dispersal, soft selection and hard selection to examine the conditions under which altruism is favoured. More generally, we examine how these various demographic details feed into relatedness and scale of competition parameters that can be included into Hamilton's rule.
journal_name
J Evol Bioljournal_title
Journal of evolutionary biologyauthors
Gardner A,West SAdoi
10.1111/j.1420-9101.2006.01104.xsubject
Has Abstractpub_date
2006-09-01 00:00:00pages
1707-16issue
5eissn
1010-061Xissn
1420-9101pii
JEB1104journal_volume
19pub_type
杂志文章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
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2008.01648.x
更新日期：2009-02-01 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
pub_type： 杂志文章
doi：10.1111/jeb.13513
更新日期：2019-10-01 00:00:00
abstract：:The evolutionary significance of widespread hypo-allometric scaling of genital traits in combination with rapid interspecific genital trait divergence has been of key interest to evolutionary biologists for many years and remains poorly understood. Here, we provide a detailed assessment of quantitative genital trait v...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/jeb.12848
更新日期：2016-06-01 00:00:00
abstract：:Empirical studies of sexual selection typically focus on one of the two mechanisms of sexual selection without integrating these into a description of total sexual selection, or study total sexual selection without quantifying the contributions of all of the mechanisms of sexual selection. However, this can provide an...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章,评审
doi：10.1111/j.1420-9101.2008.01633.x
更新日期：2009-01-01 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
pub_type： 杂志文章
doi：10.1111/jeb.13074
更新日期：2017-07-01 00:00:00
abstract：:In Tettigoniidae (Orthoptera: Ensifera), hearing organs are essential in mate detection. Male tettigoniids usually produce calling songs by tegminal stridulation, whereas females approach the males phonotactically. This unidirectional communication system is the most common one among tettigoniids. In several tettigoni...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/jeb.12294
更新日期：2014-01-01 00:00:00
abstract：:One of the main goals of molecular evolutionary biology is to determine the factors that influence the evolutionary rate of selectively neutral DNA, but much remains unknown, especially for plants. Key factors that could alter the mutation rate include environmental tolerances (because they reflect a plants vulnerabil...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2005.00977.x
更新日期：2006-01-01 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
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2010.02195.x
更新日期：2011-03-01 00:00:00
abstract：:Assessing processes of geographic expansion in contact zones is a crucial step towards an accurate prediction of the evolution of species genetic diversity. The geographic distribution of cytonuclear discordance often reflects genetic introgression patterns across a species geographic range. Antirrhinum majus pseudoma...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2011.02276.x
更新日期：2011-07-01 00:00:00
abstract：:Studying the genetic architecture of sexual traits provides insight into the rate and direction at which traits can respond to selection. Traits associated with few loci and limited genetic and phenotypic constraints tend to evolve at high rates typically observed for secondary sexual characters. Here, we examined the...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/jeb.12686
更新日期：2015-09-01 00:00:00
abstract：:We examined, through allozyme electrophoresis, the genetic structure of populations of the acridid grasshopper Dichroplus pratensis from two chromosomal races (Northern and Southern) and their hybrid zone in Argentina. No fixed alleles for any particular race were found, although genetic differentiation among parental...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1046/j.1420-9101.2004.00649.x
更新日期：2004-01-01 00:00:00
abstract：:The central tool for the study of allele frequency change due to selection is the remarkably simple but powerful formula of Price [Nature 227 (1970) 520]. Here, I provide what might be called a structural analysis of this formula. The formula essentially accumulates the average allele frequency change over many instan...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2008.01640.x
更新日期：2009-01-01 00:00:00
abstract：:Ocelli are serially repeated colour patterns on the wings of many butterflies. Eyespots are elaborate ocelli that function in predator avoidance and deterrence as well as in mate choice. A phylogenetic approach was used to study ocelli and eyespot evolution in Vanessa butterflies, a genus exhibiting diverse phenotypes...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/jeb.12716
更新日期：2015-11-01 00:00:00
abstract：:Metamorphosis can disrupt the correlation structure between juvenile and adult traits, thus allowing relatively independent evolution in contrasting environments. We used a multiple experimental approach to investigate how diet quality and larval predation risk affected the rates of growth and development in painted f...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2006.01100.x
更新日期：2006-07-01 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
pub_type： 杂志文章
doi：10.1111/jeb.12340
更新日期：2014-04-01 00:00:00
abstract：:Temporal resource fluctuations could affect the strength of antagonistic coevolution through population dynamics and costs of adaptation. We studied this by coevolving the prey bacterium Serratia marcescens with the predatory protozoa Tetrahymena thermophila in constant and pulsed-resource environments for approximate...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2011.02379.x
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
pub_type： 杂志文章
doi：10.1111/jeb.12665
更新日期：2015-08-01 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
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2010.01967.x
更新日期：2010-05-01 00:00:00
abstract：:Island races of passerine birds display repeated evolution towards larger body size compared with their continental ancestors. The Capricorn silvereye (Zosterops lateralis chlorocephalus) has become up to six phenotypic standard deviations bigger in several morphological measures since colonization of an island approx...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2006.01242.x
更新日期：2007-03-01 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
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2008.01551.x
更新日期：2008-07-01 00:00:00
abstract：:Bottlenose dolphins (Tursiops truncatus) have a world-wide distribution, and show morphotypic variation among regions. Distinctions between coastal and pelagic populations have been documented; however, regional patterns of differentiation had not been previously investigated in a wider geographic context. We analysed...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1046/j.1420-9101.2003.00672.x
更新日期：2004-03-01 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
pub_type： 杂志文章
doi：10.1111/jeb.12278
更新日期：2014-01-01 00:00:00
abstract：:The length of the favourable season determines voltinism in insect populations. In some insects, there is variation in fecundity and timing of reproduction among females. If the length of the favourable season does not allow all offspring to develop into adults without diapause, the benefits of high early fecundity ma...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2008.01597.x
更新日期：2008-11-01 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
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2005.00928.x
更新日期：2005-07-01 00:00:00
abstract：:Ecological divergence can cause speciation if adaptive traits have pleiotropic effects on mate choice. In Heliconius butterflies, mimetic patterns play a role in mate detection between sister species, as well as signalling to predators. Here we show that male butterflies from four recently diverged parapatric populati...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2004.00675.x
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
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2009.01848.x
更新日期：2009-11-01 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
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2007.01457.x
更新日期：2008-01-01 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
pub_type： 杂志文章
doi：10.1111/jeb.12778
更新日期：2016-02-01 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
pub_type： 杂志文章
doi：10.1046/j.1420-9101.2003.00480.x
更新日期：2003-01-01 00:00:00
abstract：:In social insects, the emergence of multiple queening is linked to changes in a suite of traits such as the reproductive life span of queens, mating patterns and population structure. We investigated queen turnover, colony longevity, spatial distribution patterns and genetic differentiation in a population of the soci...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2007.01345.x
更新日期：2007-07-01 00:00:00
