Local mate competition and the sex ratio
WitrynaWest, S A & Herre, E A (1998a) Partial local mate competition and the sex ratio: a study on non-pollinating fig wasps. Journal of Evolutionary Biology, 11, … Witryna13 lip 2004 · Sex allocation theory offers excellent opportunities for studying the precision of adaptation. One of the best-supported areas in the field of sex allocation is Hamilton's theory of local mate competition, which predicts female-biased offspring sex ratios when populations are structured such that mating takes place locally before females …
Local mate competition and the sex ratio
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Witryna25 sty 2006 · Abstract. Sex ratio theory has proved remarkably useful in testing the adaptive nature of animal behavior. A particularly productive area in this respect is … WitrynaBecause sex ratios are tightly linked to fitness, they can be under strong selection or plastic in response to changing demographic conditions. Hamilton [1] pointed out that an equality of the sex ratio breaks down when there is local competition for mates. Competition for mates can be considered as a special case of local resource …
WitrynaKeywords Local mate competition.Ooencyrtus kuvanae. Solitary egg parasitoid.Sex ratio.Local resource competition Introduction Fitness consequences associated with controlling the sex ratio of offspring have been considered since Darwin (1871). In randomly mating populations, the evolutionary stable strategy is to invest equally in … Witryna21 gru 2014 · The local mate competition model from sex ratio theory predicts female-biased sex ratios in populations that are highly subdivided during mating, and is …
WitrynaHamilton’s theory of local mate competition, which predicts female‐biased sex ratios in structured populations, has been extended in numerous directions to predict individual behavior in response to factors such as relative fecundity, time of oviposition, and relatedness between cofoundresses and between mates. Witryna3 cze 2024 · 1. Introduction. Strategies of male–male competition take on many different forms, including elaborate displays, female mate guarding and physical combat [].Male–male competition also extends to the post-copulatory arena when females mate multiply and the sperm of rival males vie for fertilizations [].Therefore, be it energy …
WitrynaAbstract Local mate competition (LMC) occurs when brothers compete with each other for mating opportunities, resulting in selection for a female-biased sex ratio within local groups. If multiple females oviposit in the same patch, their sons compete for mating opportunities with non-brothers. Females, in the presence of other females, should
WitrynaLocal mate competition favours a female-biased sex ratio because a reduction in the number of sons means less competi tion for mates and an increase in the number of daughters means christian smith redaptiveWitryna7 paź 1980 · The local mate competition model from sex ratio theory predicts female-biased sex ratios in populations that are highly subdivided during mating, and is … georgia withholding employer registrationWitrynaEXPLORE THE UNIVERSITY OF OXFORD'S WORLD-CLASS RESEARCH. search for. Targeted search options georgia winter storm 2022Witryna12 sty 2024 · Local mate competition (LMC) favours female biased clutch sex ratios because it reduces competition between brothers and provides extra mating opportunities for sons. Fig wasps seem to fit LMC model assumptions and lay female-biased sex ratios as predicted. These female biased sex ratios increase fitness … georgia winter weather predictionsWitrynaThe puzzling sex ratio behavior of Melittobia wasps has long posed one of the greatest questions in the field of sex allocation. ... they lay eggs with close relatives, which keeps local mate competition high even with multiple females, and therefore, they are selected to produce consistently female-biased sex ratios. Laboratory ... georgia winter weather riskWitrynaWe examined sex ratios in 46 populations and evaluated the hypothesis that the proximity of males in the local mating environment, through its influence on gametophytic selection, is the primary cause of female‐biased sex ratios. Female‐biased sex ratios characterized most populations of R. hastatulus (mean sex ratio = 0.62), … georgia withholding account numberWitrynastructured populations (where sex ratio is defined as the proportion of males). Hamilton (1967) demonstrated that when the offspring of one or a few mothers mate amongst … christian smith religious parenting