Extra-pair paternity
WebIt’s odd the article uses the term “extra-pair”, which is a biological term for birds from monogamous species mating outside the pair-bond. While it more or less comes to … WebIt is currently unknown if frequency of extra-pair paternity in a population influences use of information about reproductive success of nearby …
Extra-pair paternity
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WebDec 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 data show that extra-pair copulations can increase the fitness of males as well as females [3, 4].This can carry a significant fitness cost for the social father, who then invests in … WebJul 2, 2014 · 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 males to shift focus from a single brood towards the entire neighbourhood, as they are likely to have offspring there.
WebMar 22, 2024 · That means that sometime between 1572 and 1770, an "extra-pair paternity event" occurred in Beethoven's paternal line. In other words, says Church, "some premarital or extramarital sexual liaison ... 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 …
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 ... 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.
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 ...
WebJun 11, 1992 · EXTRA-PAIR copulations (EPCs) seem to be one of the most widespread alternative reproductive behaviours by which male birds can increase their fitness 1,2. In … sheridan girls basketball twitterWebDec 2, 2024 · Extra-pair copulation behavior has been widely studied among socially monogamous birds. Many species revealed high rates of extra-pair paternity. But few of the studies have been carried out in the Asian population. From 2012 to 2024, we explored the extra-pair paternity of Marsh Tits (Poecile palustris) in Xianrendong National Nature … spss os计算Webextra-pair paternity (n = 10) and IBP (n = 9), three of these contained both IBP and extra-pair offspring. Over-all, the level of extra-pair paternity was found to be 22.8% of broods (13 of 57), representing 8.6% of off-spring produced by the social mother (20 of 232). There were eleven nestlings that mismatched both spss otago universityWebJun 16, 2024 · Data survey. We have searched for articles reporting extra-pair paternity frequency that were published in scientific journals, contained an estimation of EPP and/or EPB frequencies in populations of free-living birds, used techniques based on molecular genetics, and contained detailed information on the methodology used for the exclusion … sheridan gis mapWebAug 4, 1998 · The amount of extra-pair paternity in socially monogamous bird species varies from 0% to 76% extra-pair offspring. The causes of this remarkable interspecific variation are largely unknown, although intraspecific analyses suggest that females seek extra-pair matings to improve the genetic quality of their offspring. spss oth regensburgWebExtra-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 several ways. The prevailing view is that EPP is largely the product of a female ... sps south parkWebDetermined the frequency of extra-pair paternity and intraspecific brood parasitism, using DNA fingerprinting, in a single population of the European starling during 2 subsequent breeding seasons. Results were compared with behavioral data about the rates of extrapair copulations and intraspecific brood parasitism. 14 families including 62 chicks were … sheridan gis mapping