A5016094459- Evolutionary Game Theory and Cooperation
- Evolution and Genetic Dynamics
- Plant and animal studies
- Experimental Behavioral Economics Studies
- Evolutionary Psychology and Human Behavior
- Game Theory and Applications
- Animal Behavior and Reproduction
- Plant Water Relations and Carbon Dynamics
- Photosynthetic Processes and Mechanisms
- Language and cultural evolution
- Opinion Dynamics and Social Influence
- Complex Systems and Time Series Analysis
- Mathematical and Theoretical Epidemiology and Ecology Models
- Culture, Economy, and Development Studies
- Insect and Arachnid Ecology and Behavior
- Legume Nitrogen Fixing Symbiosis
- Insect symbiosis and bacterial influences
- Economic and Environmental Valuation
- Plant responses to elevated CO2
- Financial Markets and Investment Strategies
- Community Development and Social Impact
- Plant Taxonomy and Phylogenetics
- Economic Growth and Development
- Climate Change Policy and Economics
- Auction Theory and Applications
University of Pennsylvania
2016-2025
Florida State University
2024
National Bureau of Economic Research
2020
South University
2016-2017
Google (United States)
2017
Princeton University
2011-2013
Stanford University
2006-2013
National Institute for Mathematical and Biological Synthesis
2009-2013
University of Tennessee at Knoxville
2009-2013
Sandia National Laboratories California
2006
Abstract Strategic interactions arise in all domains of life. This form competition often plays out dynamically changing environments. The strategies employed a population may alter the state environment, which turn feedback to change incentive structure strategic interactions. Feedbacks between and environment are common social-ecological systems, evolutionary-ecological even psychological-economic systems. Here we develop framework ‘eco-evolutionary game theory’ that enables study...
Abstract The social network structure of animal populations has major implications for survival, reproductive success, sexual selection and pathogen transmission individuals. But as yet, no general theory exists that can explain the diversity networks observed in nature, serve a null model detecting species population-specific factors. Here we propose simple generally applicable structure. We consider emergence result inheritance, which newborns are likely to bond with maternal contacts, via...
Although much previous work describes evolutionary mechanisms that promote or stabilize different social behaviors, we still have little understanding of the factors drive animal behavior proximately. Here present a modeling approach to answer this question. Our model rests on motivations achieve objectives as proximate determinants behavior. We develop two-tiered framework by first dynamics interaction at behavioral time scale and then find evolutionarily stable result from outcomes these...
Abiotic environmental variables strongly affect the outcomes of species interactions. For example, mutualistic interactions between are often stronger when resources limited. The effect might be indirect: water stress on plants can lead to carbon stress, which could alter carbon-mediated plant mutualisms. In ant–plant symbioses, host ant colonies that defend them against herbivores. Here we show partners' investments in a widespread symbiosis increase with across 26 sites along Mesoamerican...
An unresolved controversy regarding social behaviors is exemplified when natural selection might lead to that maximize fitness at the social-group level but are costly individual level. Except for special case of groups clones, we do not have a general understanding how and group-optimal evolve, especially in question flexible. To address this question, develop model integrates behavioral plasticity interactions with action structured populations. We find can even without clonal groups, if...
Significance We use a coupled photosynthesis–hydraulic optimal physiology model in conjunction with paleoclimate modeling to examine the primary selective pressures along ecological trajectory of C 4 photosynthesis and confirm revise likely geographical points dominance expansion. Water limitation was driver for initial advantage over 3 mid-Oligocene until CO 2 became low enough to, light intensity, drive global expansion Miocene. Our integrated framework also predicts evolution should be...
How should fitness be measured to determine which phenotype or "strategy" is uninvadable when evolution occurs in a group-structured population subject local demographic and environmental heterogeneity? Several measures, such as basic reproductive number, lifetime dispersal success of lineage, inclusive have been proposed address this question, but the relationships between them their generality remains unclear. Here, we ascertain uninvadability (all mutant strategies always go extinct)...
Mother knows best Inheritance of social status, and its associated costs benefits, is well demonstrated in humans. Whether such an intergenerational system occurs other species harder to demonstrate. Ilany et al. looked at nearly 30 years interaction data spotted hyenas, a female-dominated with highly structured society, found that status inheritance just as prominent (see the Perspective by Firth Sheldon). Juvenile hyenas had associations were similar their mothers, strength association was...
Humans are a hyper-social species, which greatly impacts the spread of infectious diseases. How do social dynamics impact epidemiology and what implications for public health policy? Here, we develop model disease transmission that incorporates behavior reduces disease, voluntary nonpharmaceutical intervention (NPI). We use "tipping-point" dynamic, previously used in sociological literature, where individuals adopt given sufficient prevalence population. The thresholds at NPI modulated by...
Summary The anatomical reorganization required for C 4 photosynthesis should also impact plant hydraulics. Most plants possess large bundle sheath cells and high vein density, which lead to higher leaf capacitance hydraulic conductance ( K ). Paradoxically, the pathway reduces water demand increases use efficiency, creating a potential mismatch between supply capacity in relations. Here, we phylogenetic analyses, physiological measurements, models examine of hydraulics closely related 3...
Two important questions about mutualisms are how the fitness costs and benefits to mutualist partners determined these mechanisms affect evolutionary dynamics of mutualism. We tackle with a model legume-rhizobium symbiosis that regards mutualism outcome as result biochemical negotiations between plant its nodules. explore consequences this mechanism rhizobia obtain four main results. First, permit differentially reward more-cooperative rhizobia--a phenomenon termed "plant sanctions"--but...
Many organisms live in populations structured by space and class, exhibit plastic responses to their social partners, are subject nonadditive ecological fitness effects. Social evolution theory has long recognized that all of these factors can lead different selection pressures but only recently attempted synthesize how interact. Using models for both discrete continuous phenotypes, we show analyzing a consistent framework reveals they interact with one another ways previously overlooked....
Cultural evolution relies on the social transmission of cultural traits along a population's network. Research indicates that network structure affects information spread and thus capacity for cumulative culture. However, how itself is driven by population-culture co-evolution remains largely unclear. We use simple model to investigate populations negotiate trade-off between acquiring new skills getting better at existing this shapes networks. find unexpected eco-evolutionary feedbacks from...
The evolutionary dynamics of social traits depend crucially on the structure a population. effects behaviors are well-studied, but relatively little is known about how itself coevolves with traits. Here, I study such coevolution simple yet realistic model within-group where connections either inherited from parent or made randomly. show that cooperation evolves when individuals make few random connections, presence selects for increased rates which leads to its collapse. Inherent costs can...
Reputations can foster cooperation by indirect reciprocity: if I am good to you then others will be me. But this mechanism for in one-shot interactions only works when people agree on who is and bad. Errors actions or assessments produce disagreements about reputations, which unravel the positive feedback loop between social standing pro-social behaviour. Cooperators end up punished defectors rewarded. Public reputation systems empathy are two possible mechanisms promote agreement...
Species throughout the tree of life have evolved to produce multiple public goods, and they often exhibit division labor, meaning that subpopulations different allocations effort across goods. Despite a robust theoretical literature on mechanisms lead labor in specific domains, general evolutionary game-theoretical analysis remains incomplete. Here we model as continuous quantity resulting goods functions contributed by all individuals using adaptive dynamics. We derive conditions for...