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Göran Arnqvist

Bio: Göran Arnqvist is an academic researcher from Uppsala University. The author has contributed to research in topics: Sexual selection & Sexual conflict. The author has an hindex of 58, co-authored 171 publications receiving 14037 citations. Previous affiliations of Göran Arnqvist include University of Belgrade & University of British Columbia.


Papers
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Journal ArticleDOI
TL;DR: A meta-analysis of 122 experimental studies addressing the direct effects of multiple mating on female fitness in insects shows that females gain directly from multiple matings in terms of increased lifetime offspring production, and supports the existence of an intermediate optimal female mating rate.

1,453 citations

Journal ArticleDOI
TL;DR: The growing number of empirical studies performed in ecology and evolution creates a need for quantitative summaries of research domains to generate higher-order conclusions about general trends and patterns.
Abstract: The growing number of empirical studies performed in ecology and evolution creates a need for quantitative summaries of research domains to generate higher-order conclusions about general trends and patterns. Recent developments In meta-analysis (the area of statistics that is designed for summarizing and analyzing multiple independent studies) have opened up new and exciting possibilities. Unlike more traditional qualitative and narrative reviews, meta-analysis allows powerful quantitative analyses of the magnitude of effects and has a high degree of objectivity because it is based on a standardized set of statistical procedures. The first pioneering applications in ecology and evolution demonstrate that meta-analysis is both tractable and powerful.

529 citations

Journal ArticleDOI
TL;DR: Response to Eberhard and Cordero, and Cordoba-Aguilar and Contreras-Garduno: sexual conflict and female choice
Abstract: Response to Eberhard and Cordero, and Cordoba-Aguilar and Contreras-Garduno: sexual conflict and female choice

513 citations

Journal ArticleDOI
Göran Arnqvist1
25 Jun 1998-Nature
TL;DR: By comparing pairs of related clades of insects that differ in mating system, this work assesses how the opportunity for postmating sexual selection affects the rate of divergent evolution of male genitalia.
Abstract: Rapid divergent evolution of male genitalia is one of the most general evolutionary trends in animals with internal fertilization; the shapes of genital traits often provide the only reliable characters for species identification1. Yet the evolutionary processes responsible for this pattern remain obscure. The long-standing lock-and-key hypothesis, still popular among taxonomists, suggests that genitalia evolve by pre-insemination hybridization avoidance; that is, hybrid inferiority drives the evolution of male genitalia with a proper mechanical fit to female genitalia. The sexual selection hypothesis2,3, in contrast, proposes that divergent evolution of genitalia is the result of sexual selection, brought about by variation in postinsemination paternity success among males. Here, by comparing pairs of related clades of insects that differ in mating system, I assess how the opportunity for postmating sexual selection affects the rate of divergent evolution of male genitalia. Genital evolution is more than twice as divergent in groups in which females mate several times than in groups in which females mate only once. This pattern is not found for other morphological traits. These findings provide strong empirical evidence in favour of a postmating sexual selection mechanism of genital evolution.

487 citations

Journal ArticleDOI
14 Feb 2002-Nature
TL;DR: Assessing the independent effects of both species-specific level of arms escalation and small imbalances in the amounts of arms between the sexes within species shows evolutionary change in the outcome of sexually antagonistic interactions such as mating rate.
Abstract: In coevolutionary 'arms races' between the sexes, the outcome of antagonistic interactions may remain at an evolutionary standstill. The advantage gained by one sex, with any evolutionary exaggeration of arms, is expected to be matched by analogous counteradaptations in the other sex. This fundamental coevolutionary process may thus be hidden from the evolutionist's eye, and no natural examples are known. We have studied the effects of male and female armament (clasping and anti-clasping morphologies) on the outcome of antagonistic mating interactions in 15 species of water strider, using a combination of experimental and phylogenetic comparative methods. Here we present, by assessing the independent effects of both species-specific level of arms escalation and small imbalances in the amounts of arms between the sexes within species, the consequences of a sexual arms race. Evolutionary change in the balance of armament between males and females, but not in the species-specific level of escalation, has resulted in evolutionary change in the outcome of sexually antagonistic interactions such as mating rate.

469 citations


Cited by
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28 Jul 2005
TL;DR: PfPMP1)与感染红细胞、树突状组胞以及胎盘的单个或多个受体作用,在黏附及免疫逃避中起关键的作�ly.
Abstract: 抗原变异可使得多种致病微生物易于逃避宿主免疫应答。表达在感染红细胞表面的恶性疟原虫红细胞表面蛋白1(PfPMP1)与感染红细胞、内皮细胞、树突状细胞以及胎盘的单个或多个受体作用,在黏附及免疫逃避中起关键的作用。每个单倍体基因组var基因家族编码约60种成员,通过启动转录不同的var基因变异体为抗原变异提供了分子基础。

18,940 citations

Journal Article
Fumio Tajima1
30 Oct 1989-Genomics
TL;DR: It is suggested that the natural selection against large insertion/deletion is so weak that a large amount of variation is maintained in a population.

11,521 citations

Journal Article
TL;DR: For the next few weeks the course is going to be exploring a field that’s actually older than classical population genetics, although the approach it’ll be taking to it involves the use of population genetic machinery.
Abstract: So far in this course we have dealt entirely with the evolution of characters that are controlled by simple Mendelian inheritance at a single locus. There are notes on the course website about gametic disequilibrium and how allele frequencies change at two loci simultaneously, but we didn’t discuss them. In every example we’ve considered we’ve imagined that we could understand something about evolution by examining the evolution of a single gene. That’s the domain of classical population genetics. For the next few weeks we’re going to be exploring a field that’s actually older than classical population genetics, although the approach we’ll be taking to it involves the use of population genetic machinery. If you know a little about the history of evolutionary biology, you may know that after the rediscovery of Mendel’s work in 1900 there was a heated debate between the “biometricians” (e.g., Galton and Pearson) and the “Mendelians” (e.g., de Vries, Correns, Bateson, and Morgan). Biometricians asserted that the really important variation in evolution didn’t follow Mendelian rules. Height, weight, skin color, and similar traits seemed to

9,847 citations

01 Jan 2016
TL;DR: The modern applied statistics with s is universally compatible with any devices to read, and is available in the digital library an online access to it is set as public so you can download it instantly.
Abstract: Thank you very much for downloading modern applied statistics with s. As you may know, people have search hundreds times for their favorite readings like this modern applied statistics with s, but end up in harmful downloads. Rather than reading a good book with a cup of coffee in the afternoon, instead they cope with some harmful virus inside their laptop. modern applied statistics with s is available in our digital library an online access to it is set as public so you can download it instantly. Our digital library saves in multiple countries, allowing you to get the most less latency time to download any of our books like this one. Kindly say, the modern applied statistics with s is universally compatible with any devices to read.

5,249 citations

Journal ArticleDOI
01 May 1981
TL;DR: This chapter discusses Detecting Influential Observations and Outliers, a method for assessing Collinearity, and its applications in medicine and science.
Abstract: 1. Introduction and Overview. 2. Detecting Influential Observations and Outliers. 3. Detecting and Assessing Collinearity. 4. Applications and Remedies. 5. Research Issues and Directions for Extensions. Bibliography. Author Index. Subject Index.

4,948 citations