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  1. AU="Rautiala, Petri"
  2. AU="Lin, Liqin"
  3. AU="Deborah Jean McClelland"
  4. AU="Brar, Ajit"
  5. AU="Aniyan Kumbalaparambil, Yesoda"
  6. AU=Carolan Michael
  7. AU="Pojskić, Mirza"
  8. AU="Tsujimoto, Sakura"
  9. AU=Di Tano Giuseppe
  10. AU="Khan, Sobia"
  11. AU="Kao, Yu-Yin"
  12. AU="Katerina Demnerova"
  13. AU="Sorrentino, I"
  14. AU="Pogge von Strandmann, Elke"
  15. AU="Lenzi, Kerry A"
  16. AU="Sakakura, Akira"
  17. AU="Nowell, Sian"
  18. AU="Mirko Cortese"
  19. AU="Klein, Steffen"
  20. AU="Koike, Toru"
  21. AU="Hung, Chung-Yu"
  22. AU="Muendlein, Hayley I"
  23. AU="Papavramidis, Theodosios"

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Treffer 1 - 8 von insgesamt 8

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  1. Artikel ; Online: The geometry of evolutionary conflict.

    Rautiala, Petri / Gardner, Andy

    Proceedings. Biological sciences

    2023  Band 290, Heft 1992, Seite(n) 20222423

    Abstract: Conflicts of interest abound not only in human affairs but also in the biological realm. Evolutionary conflict occurs over multiple scales of biological organization, from genetic outlawry within genomes, to sibling rivalry within nuclear families, to ... ...

    Abstract Conflicts of interest abound not only in human affairs but also in the biological realm. Evolutionary conflict occurs over multiple scales of biological organization, from genetic outlawry within genomes, to sibling rivalry within nuclear families, to collective-action disputes within societies. However, achieving a general understanding of the dynamics and consequences of evolutionary conflict remains an outstanding challenge. Here, we show that a development of R. A. Fisher's classic 'geometric model' of adaptation yields novel and surprising insights into the dynamics of evolutionary conflict and resulting maladaptation, including the discoveries that: (i) conflict can drive evolving traits arbitrarily far away from all parties' optima and, indeed, if all mutations are equally likely then contested traits are more often than not driven outwith the zone of actual conflict (hyper-maladaptation); (ii) evolutionary conflicts drive persistent maladaptation of orthogonal, non-contested traits (para-maladaptation); and (iii) modular design greatly ameliorates conflict-driven maladaptation, thereby facilitating major transitions in individuality.
    Mesh-Begriff(e) Humans ; Biological Evolution ; Adaptation, Physiological/genetics ; Mutation ; Genome ; Acclimatization
    Sprache Englisch
    Erscheinungsdatum 2023-02-08
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 209242-6
    ISSN 1471-2954 ; 0080-4649 ; 0962-8452 ; 0950-1193
    ISSN (online) 1471-2954
    ISSN 0080-4649 ; 0962-8452 ; 0950-1193
    DOI 10.1098/rspb.2022.2423
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  2. Artikel ; Online: Extended haplodiploidy hypothesis.

    Rautiala, Petri / Helanterä, Heikki / Puurtinen, Mikael

    Evolution letters

    2019  Band 3, Heft 3, Seite(n) 263–270

    Abstract: Evolution of altruistic behavior was a hurdle for the logic of Darwinian evolution. Soon after Hamilton formalized the concept of inclusive fitness, which explains how altruism can evolve, he suggested that the high sororal relatedness brought by ... ...

    Abstract Evolution of altruistic behavior was a hurdle for the logic of Darwinian evolution. Soon after Hamilton formalized the concept of inclusive fitness, which explains how altruism can evolve, he suggested that the high sororal relatedness brought by haplodiploidy could be why Hymenopterans have a high prevalence in eusocial species, and why helpers in Hymenoptera are always female. Later it was noted that in order to capitalize on the high sororal relatedness, helpers would need to direct help toward sisters, and this would bias the population sex ratio. Under a 1:3 males:females sex ratio, the inclusive fitness valuation a female places on her sister, brother, and an own offspring are equal-apparently removing the benefit of helping over independent reproduction. Based on this argumentation, haplodiploidy hypothesis has been considered a red herring. However, here we show that when population sex ratio, cost of altruism, and population growth rate are considered together, haplodiploidy does promote female helping even with female-biased sex ratio, due the lowered cost of altruism in such populations. Our analysis highlights the need to re-evaluate the role of haplodiploidy in the evolution of helping, and the importance of fully exploring the model assumptions when comparing interactions of population sex ratios and social behaviors.
    Sprache Englisch
    Erscheinungsdatum 2019-04-29
    Erscheinungsland England
    Dokumenttyp Journal Article
    ISSN 2056-3744
    ISSN (online) 2056-3744
    DOI 10.1002/evl3.119
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  3. Artikel ; Online: Intragenomic Conflict over Soldier Allocation in Polyembryonic Parasitoid Wasps.

    Rautiala, Petri / Gardner, Andy

    The American naturalist

    2016  Band 187, Heft 4, Seite(n) E106–15

    Abstract: Understanding the selection pressures that have driven the evolution of sterile insect castes has been the focus of decades of intense scientific debate. An amenable empirical test bed for theory on this topic is provided by the sterile-soldier caste of ... ...

    Abstract Understanding the selection pressures that have driven the evolution of sterile insect castes has been the focus of decades of intense scientific debate. An amenable empirical test bed for theory on this topic is provided by the sterile-soldier caste of polyembryonic parasitoid wasps. The function of these soldiers has been a source of controversy, with two basic hypotheses emerging: the "brood-benefit" hypothesis that they provide an overall benefit for their siblings and the "sex-ratio-conflict" hypothesis that the soldiers mediate a conflict between brothers and sisters by killing their opposite-sex siblings. Here, we investigate the divergent sex-ratio optima of a female embryo's maternal-origin and paternal-origin genes, to determine the potential for, and direction of, intragenomic conflict over soldiering. We then derive contrasting empirically testable predictions concerning the patterns of genomic imprinting that are expected to arise out of this intragenomic conflict, for the brood-benefit versus the sex-ratio-conflict hypothesis of soldier function.
    Mesh-Begriff(e) Animals ; Biological Evolution ; Competitive Behavior ; Female ; Genomic Imprinting ; Larva/genetics ; Male ; Models, Genetic ; Sex Ratio ; Wasps/genetics ; Wasps/growth & development
    Sprache Englisch
    Erscheinungsdatum 2016-04
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 207092-3
    ISSN 1537-5323 ; 0003-0147
    ISSN (online) 1537-5323
    ISSN 0003-0147
    DOI 10.1086/685082
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  4. Artikel ; Online: (mit Forschungsdaten) The evolutionary dynamics of adaptive virginity, sex-allocation, and altruistic helping in haplodiploid animals.

    Rautiala, Petri / Helanterä, Heikki / Puurtinen, Mikael

    Evolution; international journal of organic evolution

    2017  Band 72, Heft 1, Seite(n) 30–38

    Abstract: In haplodiploids, females can produce sons from unfertilized eggs without mating. However, virgin reproduction is usually considered to be a result of a failure to mate, rather than an adaptation. Here, we build an analytical model for evolution of ... ...

    Abstract In haplodiploids, females can produce sons from unfertilized eggs without mating. However, virgin reproduction is usually considered to be a result of a failure to mate, rather than an adaptation. Here, we build an analytical model for evolution of virgin reproduction, sex-allocation, and altruistic female helping in haplodiploid taxa. We show that when mating is costly (e.g., when mating increases predation risk), virginity can evolve as an adaptive female reproductive strategy. Furthermore, adaptive virginity results in strongly divergent sex-ratios in mated and virgin queen nests ("split sex ratios"), which promotes the evolution of altruistic helping by daughters in mated queen nests. However, when helpers evolve to be efficient and increase nest production significantly, virgin reproduction is selected against. Our results suggest that adaptive virginity could have been an important stepping stone on the pathway to eusociality in haplodiploids. We further show that virginity can be an adaptive reproductive strategy also in primitively social haplodiploids if workers bias the sex ratio toward females. By remaining virgin, queens are free to produce sons, the more valuable sex in a female-biased population. Our work brings a new dimension to the studies linking reproductive strategies with social evolution.
    Mesh-Begriff(e) Animals ; Biological Evolution ; Female ; Male ; Models, Biological ; Reproduction, Asexual ; Sex Ratio
    Sprache Englisch
    Erscheinungsdatum 2017-12-12
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2036375-8
    ISSN 1558-5646 ; 0014-3820
    ISSN (online) 1558-5646
    ISSN 0014-3820
    DOI 10.1111/evo.13399
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  5. Artikel ; Online: Correction.

    Rautiala, Petri / Helanterä, Heikki / Puurtinen, Mikael

    The American naturalist

    2015  Band 186, Heft 1, Seite(n) 159

    Sprache Englisch
    Erscheinungsdatum 2015-07
    Erscheinungsland United States
    Dokumenttyp Published Erratum
    ZDB-ID 207092-3
    ISSN 1537-5323 ; 0003-0147
    ISSN (online) 1537-5323
    ISSN 0003-0147
    DOI 10.1086/681943
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  6. Artikel ; Online: Unmatedness promotes the evolution of helping more in diplodiploids than in haplodiploids.

    Rautiala, Petri / Helanterä, Heikki / Puurtinen, Mikael

    The American naturalist

    2014  Band 184, Heft 3, Seite(n) 318–325

    Abstract: The predominance of haplodiploidy (where males develop from unfertilized haploid eggs and females from fertilized diploid eggs) among eusocial species has inspired a body of research that focuses on the possible role of relatedness asymmetries in the ... ...

    Abstract The predominance of haplodiploidy (where males develop from unfertilized haploid eggs and females from fertilized diploid eggs) among eusocial species has inspired a body of research that focuses on the possible role of relatedness asymmetries in the evolution of helping and eusociality. Previous theory has shown that in order for relatedness asymmetries to favor the evolution of helping, there needs to be variation in sex ratios among nests in the population (i.e., split sex ratios). In haplodiploid species, unmated females can produce a brood of all males, and this is considered the most likely mechanism for split sex ratios at the origin of helping. In contrast, in diploidiploids unmatedness means total reproductive failure. We compare the effect of unmatedness on selection for male and female helping in haplodiploids and diplodiploids. We show that in haplodiploids, unmatedness promotes helping in females but not in males within the empirical range. In diplodiploids, unmatedness promotes helping by both sexes, and the effect is stronger than in haplodiploids, all else being equal. Our study highlights the need to consider interactions between ecological and genetic factors in the evolution of helping and eusociality.
    Mesh-Begriff(e) Animals ; Biological Evolution ; Diploidy ; Female ; Haploidy ; Hymenoptera/genetics ; Male ; Models, Biological ; Reproduction ; Sex Ratio ; Social Behavior
    Sprache Englisch
    Erscheinungsdatum 2014-09
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 207092-3
    ISSN 1537-5323 ; 0003-0147
    ISSN (online) 1537-5323
    ISSN 0003-0147
    DOI 10.1086/677309
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  7. Artikel ; Online: Differential detectability of polymorphic warning signals under varying light environments.

    Rojas, Bibiana / Rautiala, Petri / Mappes, Johanna

    Behavioural processes

    2014  Band 109 Pt B, Seite(n) 164–172

    Abstract: The striking colour-pattern variation of some aposematic species is paradoxical because selection by predators is expected to favour signal uniformity. Although the mechanisms allowing for the maintenance of such variation are not well understood, ... ...

    Abstract The striking colour-pattern variation of some aposematic species is paradoxical because selection by predators is expected to favour signal uniformity. Although the mechanisms allowing for the maintenance of such variation are not well understood, possible explanations include both non-adaptive processes like drift and gene flow; and adaptive processes, such as an interaction between natural and sexual selection, spatial and temporal variation in selection, a link between behaviour or other fitness-related traits and phenotype, and predators' ability to generalise among different signals. Here we test whether warning-signal polymorphisms, such as that of dyeing poison frogs (Dendrobates tinctorius), could be maintained by differences in detectability among morphs. We did experiments in the wild using wax models with different aposematic colour patterns vs. cryptic ones, and examined the attack rates by wild predators over time. We also tested the detectability of different aposematic morphs by 'human predators' under different light environments. We found that cryptic frog models were attacked more than aposematic models, but there were no differences in bird attack rates towards the different aposematic morphs. However, we found that detectability of different morphs depends both on predator experience and light environment. We suggest that the interaction between differential detectability and signal efficiency among morphs in different light conditions could be a mechanism aiding to the maintenance of warning-signal polymorphisms. Our results highlight the importance of considering the light environment at which predators have their first encounters with aposematic prey for future studies on predation in the wild.
    Mesh-Begriff(e) Animals ; Anura/physiology ; Birds/physiology ; Color Perception ; Discrimination (Psychology) ; Female ; Humans ; Lighting ; Male ; Predatory Behavior ; Skin Pigmentation
    Sprache Englisch
    Erscheinungsdatum 2014-11
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 196999-7
    ISSN 1872-8308 ; 0376-6357
    ISSN (online) 1872-8308
    ISSN 0376-6357
    DOI 10.1016/j.beproc.2014.08.014
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  8. Artikel ; Online: Colour and luminance contrasts predict the human detection of natural stimuli in complex visual environments.

    White, Thomas E / Rojas, Bibiana / Mappes, Johanna / Rautiala, Petri / Kemp, Darrell J

    Biology letters

    2017  Band 13, Heft 9

    Abstract: Much of what we know about human colour perception has come from psychophysical studies conducted in tightly-controlled laboratory settings. An enduring challenge, however, lies in extrapolating this knowledge to the noisy conditions that characterize ... ...

    Abstract Much of what we know about human colour perception has come from psychophysical studies conducted in tightly-controlled laboratory settings. An enduring challenge, however, lies in extrapolating this knowledge to the noisy conditions that characterize our actual visual experience. Here we combine statistical models of visual perception with empirical data to explore how chromatic (hue/saturation) and achromatic (luminant) information underpins the detection and classification of stimuli in a complex forest environment. The data best support a simple linear model of stimulus detection as an additive function of both luminance and saturation contrast. The strength of each predictor is modest yet consistent across gross variation in viewing conditions, which accords with expectation based upon general primate psychophysics. Our findings implicate simple visual cues in the guidance of perception amidst natural noise, and highlight the potential for informing human vision via a fusion between psychophysical modelling and real-world behaviour.
    Mesh-Begriff(e) Color ; Cues ; Humans ; Psychophysics ; Visual Perception
    Sprache Englisch
    Erscheinungsdatum 2017-09-20
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2135022-X
    ISSN 1744-957X ; 1744-9561
    ISSN (online) 1744-957X
    ISSN 1744-9561
    DOI 10.1098/rsbl.2017.0375
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