Extra-pair-paternity

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August undefined, 2024

WebFeb 1, 2024 · Extra-pair mating may incentivize males to assist in nest defense because of the benefits that this cooperative behavior has on their total offspring production. For females, this mating strategy may help recruit more males to join in antipredator defense, offering better protection and ultimately improving reproductive success. WebNov 14, 2024 · The study found evidence of extra-pair paternity events turned up more often in people of lower socioeconomic status who lived in densely populated cities in …

Extra-pair paternity, sperm competition and the evolution of …

WebAug 1, 2014 · Hence, extra-pair paternity in a brood will only partly reflect the underlying propensity of a female to engage in extra-pair matings. Likewise, the extra-pair mating success of a male might strongly depend on the mating preferences of the available females and only to some extent on his extra-pair mating effort (his intrinsic propensity). WebJan 18, 2024 · The only way to uncover whether a male’s paternity in the neighboring brood results from extra-pair copulation or rapid mate switching is to monitor male nest ownership during the female’s fertile period ().We note that Krams et al. did not identify the males until the nestling period when the brood defense experiment was carried out.A mate-switching … high rock face 5 letters

Extra-pair paternity and intraspecific brood parasitism in the …

WebAug 31, 2024 · In-pair copulation; Mate fidelity Definition A paired individual opportunistically mates with an individual other than its social mate within pair bond. Evolutionary Context According to Trivers ( 1972 ), there will be uneven investment in … WebIn the superb fairywren, a socially monogamous species with a high frequency of extra pair copulations, the relative amount of extra-pair paternity was greater in individuals that had sperm with a shorter flagellum and a larger head. The males with longer flagella and smaller heads had higher within-pair paternity. Shorter sperm with large ... WebOct 14, 2024 · Extra-pair paternity (EPP) has received great attention during recent decades, after Trivers argued that males should seek additional copulations, while … high rock estates

Extra-pair paternity in birds: explaining variation between …

A Historical-Genetic Reconstruction of Human Extra-Pair Paternity

WebDec 2, 2024 · From 2012 to 2024, we explored the extra-pair paternity of Marsh Tits ( Poecile palustris) in Xianrendong National Nature Reserve, Liaoning Province, China. During the study, adult Marsh Tits were captured with mist nets and parental birds, with nest-box traps. Blood samples were taken from the brachial vein. WebJul 15, 2024 · Extra-pair paternity (EPP) is a key aspect of the mating behaviour of birds and its frequency varies widely among populations and species. Several hypotheses predict patterns of geographical variation in the occurrence and frequency of EPP, but a global-scale study on variation in this trait is still lacking. We collected data on EPP from 663 ... high rock energyWebExtra-pair paternity (EPP) is extremely variable among species of birds, both in its frequency and in the behavioral events that produce it. A flood of field studies and comparative analyses has stimulated an array of novel ideas, but the results are limited in … how many carbs are in mayonnaise

"WebOct 6, 2024 · The studies of extra-pair paternity in birds provide the most extensive molecular evidence of mating system for any taxonomic group and this extensive literature has been the focus of many comparative … " - Extra-pair-paternity

Extra-pair-paternity

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WebFeb 19, 2024 · Abstract. Among nonhuman species, social monogamy is rarely accompanied by complete fidelity. Evolutionary theory predicts that the rate of extrapair … WebMay 7, 2024 · Studies show that EPP rates are higher in species in which the adult mortality is higher and the amount of paternal care is lower; this points towards a decrease in the risk of retaliation and, consequently, a decrease in the potential costs of …

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WebExtra-pair paternity (EPP) rates as calculated by our model are shown based on estimated rural and per-city urban population densities observed in 1850. The solid provincial …

WebSince the first molecular study providing evidence for mating outside the pair bond in birds over 30 years ago, >500 studies have reported rates of extra-pair paternity (EPP) in … WebJul 30, 2024 · Seabirds are long-lived birds that invest in offspring at very high levels, for which male parental care is indispensable. These characteristics are thought to explain seabirds’ generally low level of extra-pair paternity (EPP). Although the Streaked Shearwater (Calonectris leucomelas) is a socially monogamous seabird, it is known to …

WebExtra-pair paternity was detected in 33% (10/30) of broods, and 20% (16/79) of all nestlings were sired by extra-pair males. In addition, 9% (7/79) of chicks out of five nests (17%) were not the offspring of either member of the pair, indicating ISBP. These findings reveal a moderate rate of ISBP and a high rate of EPP in the Black-headed Gull ... WebIt is currently unknown if frequency of extra-pair paternity in a population influences use of information about reproductive success of nearby …

WebExtra-pair paternity is the result of copulation between a female and a male other than her social partner. In socially monogamous birds, old males are most likely to sire extra …

WebMar 3, 2024 · Extra-pair copulation is considered to be a means by which females can modify their initial mate choice, and females might obtain indirect benefits to offspring … how many carbs are in manwichWebMar 22, 2024 · They found an "extra-pair paternity event" -- a child resulting from an extramarital relationship -- in Beethoven's direct paternal line, said Toomas Kivisild of the … how many carbs are in margarineWebJul 2, 2014 · A striking but unexplained pattern in biology is the promiscuous mating behaviour in socially monogamous species. Although females commonly solicit extra-pair copulations, the adaptive reason has remained elusive. We use evolutionary modelling of breeding ecology to show that females benefit because extra-pair paternity incentivizes … how many carbs are in low fat cottage cheeseWebDec 2, 2024 · Paternity testing using genetic markers has shown that extra-pair paternity (EPP) is common in many pair-bonded species [1, 2]. Evolutionary theory and empirical … high rock fiberglassWebDec 8, 2024 · Genetic relatedness of breeders and helpers in relation to extra-pair mating. Of the 75 offspring genotyped (N = 29 broods), we determined candidate fathers for 57 nestlings (N = 24 broods), with only 3 of these offspring (N = 3 broods) sired by a sampled male other than the pair-bonded male (2 with 0, and 1 with 1 allele mismatch).Seven of … how many carbs are in marinara sauceWebFeb 1, 2024 · We studied the relationship between extra-pair paternity (EPP) and the different characteristics of males and females in the European pied flycatcher in Western Siberia (Russia). The analysis was ... high rock farm ncWebDec 2, 2024 · (A) Predicted extra-pair paternity (EPP) rates for each of the 6,818 male ancestors of the 513 genealogical pairs in our study, modeled as a function of socioeconomic status and (log 2 transformed) population density, and plotted for each ancestor’s year of birth. how many carbs are in mead