Article
Mathematics, Applied
Jialu He, Jianwei Wang, Fengyuan Yu, Wei Chen, Wenshu Xu
Summary: In an enterprise, there are various parallel projects, leading to distinct group interactions. The conflict of interest between groups and individuals in a fiercely competitive environment makes it difficult for projects to proceed smoothly. By introducing a general framework of multiple public goods games, overall cooperation can be effectively promoted, especially when public resources are relatively scarce.
APPLIED MATHEMATICS AND COMPUTATION
(2022)
Article
Ecology
Constantinos Xenophontos, W. Stanley Harpole, Kirsten Kuesel, Adam Thomas Clark
Summary: Cheaters in microbial communities can stabilize the community and potentially be a precursor to cooperation rather than extinction.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2022)
Article
Mathematics, Interdisciplinary Applications
Tianyu Ren, Junjun Zheng
Summary: Altruistic sanctions play a crucial role in promoting cooperation in human society, and introducing a tolerance-based expulsion mechanism can significantly enhance cooperation, stabilize it under negative conditions, and determine the optimal threshold for implementation of expulsion.
CHAOS SOLITONS & FRACTALS
(2021)
Review
Microbiology
Elizabeth A. Cummins, Rebecca J. Hall, James O. McInerney, Alan McNally
Summary: This article introduces current models of pangenome evolution and discusses their suitability and accuracy. The influence of environmental factors on pangenomes and the importance of two-way interactions between pangenome and environment are emphasized. The article also proposes new classifications of core and accessory genes and emphasizes the need for continuous evaluation of nomenclature in the rapidly developing field. In conclusion, future models of pangenome evolution should incorporate eco-evolutionary dynamics to fully encompass their dynamic, changeable nature.
CURRENT OPINION IN MICROBIOLOGY
(2022)
Article
Mathematics, Interdisciplinary Applications
Luhe Yang, Lianzhong Zhang
Summary: The study focuses on the evolution of cooperation on a two-dimension square lattice by introducing an exogenous variable that promotes cooperation. The modified model shows stricter conditions for the emergence and maintenance of cooperation, and can be applied in scenarios with environmental feedback.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Physics, Multidisciplinary
C. Xu, P. M. Hui
Summary: This study investigates cooperative behavior in a population engaged in Public Goods Games (PGG) with players in dynamic groups of various sizes and memberships. It proposes a learning mechanism for switching strategy based on comparing payoffs between two randomly chosen players. Analytical and numerical simulations confirm that cooperation can be promoted by adjusting the multiplicative factor and group size distribution. The findings highlight the role of smaller groups in promoting cooperation in a PGG setting.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2023)
Article
Mathematics, Applied
Hsuan-Wei Lee, Colin Cleveland, Attila Szolnoki
Summary: Punishing those who refuse to participate in common efforts is a known way to maintain cooperation, but it can make punishers vulnerable and jeopardize effectiveness. Hiring special players to monitor and punish defectors as an alternative using a tax-based fund is suggested. The level of tax and punishment fines are crucial factors in determining coexistence with cooperators or defectors and achieving optimal outcomes.
APPLIED MATHEMATICS AND COMPUTATION
(2022)
Article
Biology
Maxwell N. Burton-Chellew, Victoire D'Amico
Summary: Through experiments on 489 participants, it was found that individuals were more motivated to learn and imitate successful behaviors, rather than common behaviors. The results indicated that social learning discouraged costly cooperation, even when individuals could observe a stable, pro-social level of cooperation.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Article
Physics, Multidisciplinary
Ji Quan, Caixia Tang, Xianjia Wang
Summary: Reputation provides important information to society and the discount effect on reputation plays a crucial role in the emergence and maintenance of cooperative behavior. The discount effect on reputation is divided into relative reputation and absolute reputation situations, with the latter being more conducive to the evolution of cooperation.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2021)
Article
Physics, Multidisciplinary
Lihui Shang, Sihao Sun, Jun Ai, Zhan Su
Summary: This study investigates the evolution of cooperative behaviors in the spatial public goods game. The findings indicate that interaction diversity greatly enhances the level of cooperation compared to the traditional model with homogeneous social scope. The mechanism behind this improvement is based on the inhomogeneous interactive domain, where cooperators can easily maintain their strategies and stabilize the cooperative neighborhood, leading to the emergence of close cooperation clusters. Furthermore, increasing uncertainty in the strategy adoption process can help the system achieve full cooperation when the diversity mechanism is considered.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2022)
Article
Multidisciplinary Sciences
Hoon C. Shin, Sechindra Vallury, Marco A. Janssen, David J. Yu
Summary: This study investigates the combined effects of voluntary participation and group-level competition and selection on the evolution of altruistic punishment. The results show that voluntary participation has negative effects on cooperation in small groups, while in large groups, it has positive effects within a limited range of nonparticipants' payoff.
Article
Mathematics, Interdisciplinary Applications
Hsuan-Wei Lee, Colin Cleveland, Attila Szolnoki
Summary: When people collaborate, they expect more than a simple sum of their efforts. In the public goods game, participants' contributions are multiplied by an r synergy factor before being distributed. This study explores the consequences of different group sizes and synergy factors. Results show that larger groups with higher synergy factors result in higher levels of cooperation, benefiting the entire community. Similar behavior is observed in other heterogeneous topologies.
CHAOS SOLITONS & FRACTALS
(2023)
Article
Mathematics, Interdisciplinary Applications
Attila Szolnoki, Xiaojie Chen
Summary: In a public goods game, reinvesting the results of common effort and adding it to the pool for the next round can change players' strategies, especially in structured populations where the last round is crucial for achieving full cooperation. In such cases, it may be advantageous for defectors to support the first round and enjoy the extra benefit of accumulated contributions.
CHAOS SOLITONS & FRACTALS
(2022)
Article
Mathematics, Applied
Xianjia Wang, Rui Ding, Jinhua Zhao, Cuiling Gu
Summary: The presence of independent groups of cooperators can promote cooperation in a population, but the introduction of mutations and individual migration can inhibit cooperation.
APPLIED MATHEMATICS AND COMPUTATION
(2022)
Article
Physics, Multidisciplinary
Xiaowen Zhong, Ying Fan, Zengru Di
Summary: Evolutionary game theory studies the interactions between individuals, and the combination of complex network and evolutionary game theory has attracted considerable attention. Research on public goods game on different types of signed networks shows that friendly and hostile relationships have varied effects on cooperation among individuals.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2021)
Article
Biochemistry & Molecular Biology
Nathan J. White, Andrew P. Beckerman, Rhonda R. Snook, Michael A. Brockhurst, Roger K. Butlin, Isobel Eyres
Summary: Local adaptation is an important evolutionary process that allows populations to adapt to their local environment. This study experimentally evolved rotifer populations under either unidimensional or multidimensional divergent selection. The results showed that populations exposed to multidimensional selection initially increased in local adaptation but later declined, while populations exposed to unidimensional selection had a slower but eventually stronger increase in local adaptation.
Article
Biology
Kathryn Billane, Ellie Harrison, Duncan Cameron, Michael A. Brockhurst
Summary: Conjugative plasmids play a crucial role in bacterial evolution by transferring adaptive traits and manipulating bacterial phenotypes. This review summarizes the global effects of plasmid acquisition on host cells through untargeted omics analyses and categorizes plasmid-mediated phenotypic effects into two classes based on their fitness benefits for plasmids.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)
Review
Biochemistry & Molecular Biology
Michael A. Brockhurst, Ellie Harrison
Summary: The article discusses the "plasmid paradox" and the theoretical problems related to plasmid maintenance. It presents ecological and evolutionary mechanisms that explain the stable existence and widespread distribution of plasmids in bacterial populations. The current challenge in the field is to understand better how these mechanisms operate in natural bacterial communities.
TRENDS IN MICROBIOLOGY
(2022)
Review
Biology
Andy Gardner
Summary: The study of sex allocation provides strong evidence for Darwinian adaptation and has been a successful combination of theoretical and empirical research. The fitness outcomes of an individual's sex allocation decisions are influenced by the behavior of others, making it an evolutionary game. This article explores the historical development of understanding the rarer-sex effect in the evolution of sex allocation from Charles Darwin's writing in 1871 to William D. Hamilton's framing in 1972. The step-wise development of theory focused on refining the strategy set, payoff function, and unbeatable strategy. This article is part of the theme issue "Half a century of evolutionary games: a synthesis of theory, application and future directions".
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
Editorial Material
Multidisciplinary Sciences
Michael Bottery, Michael A. Brockhurst
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Biology
Petri Rautiala, Andy Gardner
Summary: Conflicts of interest are common in both human affairs and the biological realm, and evolutionary conflict occurs at various levels of biological organization. This study reveals novel insights into the dynamics and consequences of evolutionary conflict by developing a geometric model of adaptation. The findings demonstrate that conflict can drive evolving traits far from the optimal state, lead to persistent maladaptation of non-contested traits, and be alleviated by modular design, facilitating major transitions in individuality.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
Article
Biochemistry & Molecular Biology
Catriona M. A. Thompson, James P. J. Hall, Govind M. Chandra, Carlo Martins, Gerhard H. Saalbach, Supakan Panturat, Susannah M. Bird, Samuel W. Ford, Richard H. A. Little, Ainelen G. Piazza, Ellie Harrison, Robert W. Jackson, Michael A. Brockhurst, Jacob G. Malone
Summary: This study characterizes a plasmid translational regulator, RsmQ, which can switch the lifestyle of Pseudomonas fluorescens from motile to sessile by interfering with the host's translational regulatory network. Comparative analyses indicate the widespread importance of RsmQ in manipulating bacterial behavior across different host taxa and ecological niches.
Article
Genetics & Heredity
Elliot Macdonald, Rosanna Wright, James P. R. Connolly, Henrik Strahl, Michael Brockhurst, Stineke van Houte, Tim R. Blower, Tracy Palmer, Giuseppina Mariano
Summary: Competitive bacteria-bacteriophage interactions have led to the evolution of bacterial defense systems, including the newly discovered Shield system in Pseudomonas. The core component ShdA is sufficient to mediate bacterial immunity against multiple phages and can also affect the organization of host chromosomal DNA. Comparative genomic approaches identified four subtypes of Shield with additional components that can modulate the activity of ShdA and provide additional phage defense. This research sheds light on a novel mechanism of bacterial immunity and the role of RmuC domains in phage defense.
Article
Religion
Kerstin Stucky, Andy Gardner
Summary: In recent years, there has been a growing interest in the role of religious systems in driving the evolution of cooperation in human societies. One suggestion is that ancestor worship might have evolved as a strategy to encourage altruism between distant kin, leading to increased inclusive fitness for the ancestors. The researchers developed a demographic model and found that religiously motivated cultural norms promoting altruism among co-descendants could indeed drive an overall increase in altruism with potential for ancestor-descendant conflict, particularly in low-dispersal settings.
RELIGION BRAIN & BEHAVIOR
(2023)
Article
Biology
Andy Gardner
Summary: Fisher's geometric model is a useful tool for predicting key properties of Darwinian adaptation, and here it is applied to predict differences between the evolution of altruistic versus nonsocial phenotypes. The results suggest that the effect size maximizing probability of fixation is smaller in the context of altruism and larger in the context of nonsocial phenotypes, leading to lower overall probability of fixation for altruism and higher overall probability of fixation for nonsocial phenotypes.
JOURNAL OF THEORETICAL BIOLOGY
(2024)
Letter
Biology
Andy Gardner
Summary: The article discusses W. D. Hamilton's prediction and subsequent correction regarding natural selection and sex ratio. By studying unpublished works of Hamilton, the author reveals the faulty methods used by Hamilton to arrive at the golden ratio result.
JOURNAL OF THEORETICAL BIOLOGY
(2023)
Editorial Material
Microbiology
Michael Brockhurst, Jennifer Cavet, Stephen P. Diggle, David Grainger, Riccardo Mangenelli, Hana Sychrova, Isabel Martin-Verstraete, Martin Welch, Tracy Palmer, Gavin H. Thomas
Editorial Material
Microbiology
Michael Brockhurst, Jennifer Cavet, Stephen P. Diggle, David Grainger, Riccardo Mangenelli, Hana Sychrova, Isabel Martin-Verstraete, Martin Welch, Tracy Palmer, Gavin H. Thomas
Article
Biology
Kalyani Z. Twyman, Andy Gardner
Summary: This article investigates how kin selection drives the evolution of dormancy and how dormancy modulates the evolution of altruism. The study finds that kin selection favors dormancy as a means of reducing competition between relatives, and when individuals can adjust their dormancy behavior based on local density, there is more dormancy in high-density neighborhoods and a corresponding 'constant non-dormant principle'.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
Article
Microbiology
Susannah M. Bird, Samuel Ford, Catriona M. A. Thompson, Richard Little, James P. J. Hall, Robert W. Jackson, Jacob Malone, Ellie Harrison, Michael A. Brockhurst
Summary: Compensatory mutations that reduce the cost of plasmid carriage have been observed in the plant rhizosphere. These mutations can mitigate the fitness cost of carrying a plasmid, which is important for the survival of bacterial populations living within complex microbial communities in their environmental niche. In this study, compensatory mutations affecting the chromosomal global regulatory system gacA/gacS were found to ameliorate the fitness cost of carrying a large conjugative plasmid in Pseudomonas fluorescens SBW25 in the plant rhizosphere.
FEMS MICROBIOLOGY ECOLOGY
(2023)