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 heterozygous advantage. We investigate differences in fitness among three morph classes of a melanistic trait in Swainson's Hawks: light (7% of the local breeding population), intermediate (57%) and dark (36%). Specifically, we examined morph differences in adult apparent survival, breeding success, annual number of fledglings produced, probability of offspring recruitment into the breeding population and lifetime reproductive success (LRS). If apostatic selection were a factor in maintaining morphs, we would expect that individuals with the least frequent morph would perform best in one or more of these fitness categories. Alternatively, if heterozygous advantage played a role in the maintenance of this polymorphism, we would expect heterozygotes (i.e. intermediate morphs) to have one or more increased rates in these categories. We found no difference in adult apparent survival between morph classes. Similarly, there were no differences in breeding success, nest productivity, LRS or probability of recruitment of offspring between parental morph. We conclude that neither apostatic selection nor heterozygous advantage appear to play a role in maintaining morphs in this population.
journal_name
J Evol Bioljournal_title
Journal of evolutionary biologyauthors
Briggs CW,Collopy MW,Woodbridge Bdoi
10.1111/j.1420-9101.2011.02356.xsubject
Has Abstractpub_date
2011-10-01 00:00:00pages
2258-68issue
10eissn
1010-061Xissn
1420-9101journal_volume
24pub_type
杂志文章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
pub_type: 杂志文章
doi:10.1111/jeb.13442
更新日期:2019-06-01 00:00:00
abstract::The resolution of taxonomic classifications for delphinid cetaceans has been problematic, especially for species in the genera Delphinus, Tursiops and Stenella. The frequent lack of correspondence between morphological and genetic differentiation in these species raises questions about the mechanisms responsible for t...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2005.01033.x
更新日期:2006-05-01 00:00:00
abstract::Feeding specializations such as herbivory are an often cited example of convergent and adaptive evolution. However, some groups such as lizards appear constrained in the evolution of morphological specializations associated with specialized diets. Here we examine whether the inclusion of plant matter into the diet of ...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2004.00758.x
更新日期:2004-09-01 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
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2005.00895.x
更新日期:2005-07-01 00:00:00
abstract::Innovative evolutionary developments are often related to gene or genome duplications. The crop fungi of attine fungus-growing ants are suspected to have enhanced genetic variation reminiscent of polyploidy, but this has never been quantified with cytological data and genetic markers. We estimated the number of nuclei...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.12718
更新日期:2015-11-01 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
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2011.02251.x
更新日期:2011-06-01 00:00:00
abstract::Traits of interest to evolutionary biologists often have complex genetic architectures, the nature of which can confound traditional experimental study at single levels of analysis. In the fire ant Solenopsis invicta, the presence of a Mendelian 'supergene' is both necessary and sufficient to induce a shift in a funda...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.12799
更新日期:2016-03-01 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
pub_type: 杂志文章
doi:10.1046/j.1420-9101.2003.00550.x
更新日期:2003-09-01 00:00:00
abstract::Studies of genotype × environment interactions (G × E) and local adaptation provide critical tests of natural selection's ability to counter opposing forces such as gene flow. Such studies may be greatly facilitated in asexual species, given the possibility for experimental replication at the level of true genotypes (...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2012.02549.x
更新日期:2012-08-01 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
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2006.01198.x
更新日期:2007-01-01 00:00:00
abstract::Understanding the genetic bases of biological diversification is a long-standing goal in evolutionary biology. Here, we investigate whether replicated cases of adaptive divergence involve the same genomic regions in the pea aphid, Acyrthosiphon pisum, a large complex of genetically differentiated biotypes, each specia...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.12441
更新日期:2014-09-01 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
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::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
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2012.02595.x
更新日期:2012-11-01 00:00:00
abstract::Theory predicts that the evolution of phenotypic plasticity depends upon cues that indicate environmental change. Predators typically induce plastic responses in prey. However, variation among populations of predators alters the frequency of predation and, possibly, the evolution of plasticity. We compared responses t...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2011.02403.x
更新日期:2012-01-01 00:00:00
abstract::We studied genetic differentiation between two social forms (M-type: single queen, independent nest founding; P-type: multiple queens, dependent nest founding, building of colonial networks) of the ant Formica truncorum in a locality where the social types characterize two sympatric populations. The genetic results in...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2005.00908.x
更新日期:2005-07-01 00:00:00
abstract::An evolutionary conflict of interest exists between parents and their offspring over the partitioning of parental investment (PI) among siblings. When the direct fitness benefits to offspring of increased PI, outweigh the inclusive fitness costs from lost future sibling fitness, selection should favour the evolution o...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2005.00888.x
更新日期:2005-05-01 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
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2010.02226.x
更新日期:2011-04-01 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
pub_type: 杂志文章
doi:10.1046/j.1420-9101.2003.00606.x
更新日期:2003-11-01 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
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2006.01154.x
更新日期:2006-11-01 00:00:00
abstract::Why are sinistral snails so rare? Two main hypotheses are that selection acts against the establishment of new coiling morphs, because dextral and sinistral snails have trouble mating, or else a developmental constraint prevents the establishment of sinistrals. We therefore used an isolate of the snail Lymnaea stagnal...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2009.01770.x
更新日期:2009-08-01 00:00:00
abstract::Male-killing bacteria are thought to persist in host populations by vertical transmission and conferring direct and/or indirect fitness benefits to their hosts. Here, we test the role of indirect fitness benefits accrued from resource reallocation in species that engage in sibling egg cannibalism. We found that a sing...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2011.02346.x
更新日期:2011-10-01 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::We explored the evolution of recombination under antagonistic coevolution, concentrating on the equilibrium frequencies of modifier alleles causing recombination in initially nonrecombining populations. We found that the equilibrium level of recombination in the host depended not only on parasite virulence, but also o...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2006.01283.x
更新日期:2007-05-01 00:00:00
abstract::The temperature-size rule is a common pattern of phenotypic plasticity in which higher temperature during development results in a smaller adult body size (i.e. a thermal reaction norm with negative slope). Examples and exceptions to the rule are known in multiple groups of organisms, but rapid population differentiat...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2007.01318.x
更新日期:2007-05-01 00:00:00
abstract::We compared historic and contemporary genetic variation in two threatened New Zealand birds (saddlebacks and robins) with disparate bottleneck histories. Saddlebacks showed massive loss of genetic variation when extirpated from the mainland, but no significant loss of variation following a severe bottleneck in the 196...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2007.01362.x
更新日期:2007-09-01 00:00:00
abstract::Nectar robbing not only affects the reproductive fitness of the plant but it may also potentially affect the pollination dynamics of the associated coflowering individuals. In this study, we established that the nectar robber Xylocopa sinensis robs nectar only from the hermaphrodite ramets of the gynodioecious plant G...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2008.01669.x
更新日期:2009-03-01 00:00:00
abstract::The brood parasitic common cuckoo Cuculus canorus consists of gentes, which typically parasitize only a single host species whose eggs they often mimic. Where multiple cuckoo gentes co-exist in sympatry, we may expect variable but generally poorer mimicry because of host switches or inter-gens gene flow via males if t...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2010.01982.x
更新日期:2010-06-01 00:00:00
abstract::Maternal effects on progeny wing size and shape in a homozygous parthenogenetic strain of Drosophila mercatorum were investigated. The impact of external maternal factors (heat stress) and the impact of internal maternal factors (different maternal and grand maternal age) were studied. The offspring developed under id...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2005.00955.x
更新日期:2005-07-01 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 independent evolution of males and females is typically constrained by shared genetic variance. Despite substantial research, we still know little about the evolution of cross-sex genetic covariance and its standardized measure, the cross-sex genetic correlation (r(MF)). In particular, it is unclear if r(MF) tend ...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2009.01862.x
更新日期:2009-12-01 00:00:00