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  1. Article ; Online: Pursuit : A Foraging Simulation Tool for Research and Teaching.

    Wood, Brian M / Jones, James Holland

    Evolutionary psychology : an international journal of evolutionary approaches to psychology and behavior

    2023  Volume 13, Issue 4, Page(s) 1474704915624738

    Abstract: This article describes a software tool called "Pursuit" that is intended to be used for both research and teaching on the topic of optimal foraging theory. The tool provides a dynamic graphical and auditory interface in which users encounter different ... ...

    Abstract This article describes a software tool called "Pursuit" that is intended to be used for both research and teaching on the topic of optimal foraging theory. The tool provides a dynamic graphical and auditory interface in which users encounter different prey animals and then must decide whether to pursue or ignore the encountered prey. Based on the characteristics of the prey in the foraging environment and the decisions of the player, each user harvests a set of prey per round and achieves a corresponding foraging return rate. Administrators of Pursuit specify the environmental parameters that determine what prey users will encounter. All environmental parameters and user decisions are tracked and logged for analysis. We created this tool for laboratory experiments, but we believe Pursuit could also be an engaging and effective teaching tool, whereby students adopt the role of forager, and through such play, experience a simulated foraging context and learn about foraging theory. Pursuit is freely available and can run on any platform that supports Java, including Mac OS, Windows, and Linux.
    Language English
    Publishing date 2023-11-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 2118532-3
    ISSN 1474-7049 ; 1474-7049
    ISSN (online) 1474-7049
    ISSN 1474-7049
    DOI 10.1177/1474704915624738
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Narrative as cultural attractor.

    Jones, James Holland / Hilde-Jones, Calder

    The Behavioral and brain sciences

    2023  Volume 46, Page(s) e98

    Abstract: By structuring information in a systematic relational framework, narratives are cultural attractors that are particularly well-suited for transmission. The relational structure of narrative is partly what communicates causality, but this structure also ... ...

    Abstract By structuring information in a systematic relational framework, narratives are cultural attractors that are particularly well-suited for transmission. The relational structure of narrative is partly what communicates causality, but this structure also complicates both transmission and selection on cultural elements by introducing correlations among narrative elements and between different narratives. These correlations have implications for adaptation, complexity, and robustness.
    MeSH term(s) Humans ; Narration
    Language English
    Publishing date 2023-05-08
    Publishing country England
    Document type Journal Article ; Comment
    ZDB-ID 423721-3
    ISSN 1469-1825 ; 0140-525X
    ISSN (online) 1469-1825
    ISSN 0140-525X
    DOI 10.1017/S0140525X22002667
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Coupled dynamics of behaviour and disease contagion among antagonistic groups.

    Smaldino, Paul E / Jones, James Holland

    Evolutionary human sciences

    2021  Volume 3, Page(s) e28

    Abstract: Disease transmission and behaviour change are both fundamentally social phenomena. Behaviour change can have profound consequences for disease transmission, and epidemic conditions can favour the more rapid adoption of behavioural innovations. We analyse ...

    Abstract Disease transmission and behaviour change are both fundamentally social phenomena. Behaviour change can have profound consequences for disease transmission, and epidemic conditions can favour the more rapid adoption of behavioural innovations. We analyse a simple model of coupled behaviour change and infection in a structured population characterised by homophily and outgroup aversion. Outgroup aversion slows the rate of adoption and can lead to lower rates of adoption in the later-adopting group or even behavioural divergence between groups when outgroup aversion exceeds positive ingroup influence. When disease dynamics are coupled to the behaviour-adoption model, a wide variety of outcomes are possible. Homophily can either increase or decrease the final size of the epidemic depending on its relative strength in the two groups and on
    Language English
    Publishing date 2021-03-18
    Publishing country England
    Document type Journal Article
    ISSN 2513-843X
    ISSN (online) 2513-843X
    DOI 10.1017/ehs.2021.22
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  4. Article ; Online: The form of uncertainty affects selection for social learning.

    Turner, Matthew A / Moya, Cristina / Smaldino, Paul E / Jones, James Holland

    Evolutionary human sciences

    2023  Volume 5, Page(s) e20

    Abstract: Social learning is a critical adaptation for dealing with different forms of variability. Uncertainty is a severe form of variability where the space of possible decisions or probabilities of associated outcomes are unknown. We identified four ... ...

    Abstract Social learning is a critical adaptation for dealing with different forms of variability. Uncertainty is a severe form of variability where the space of possible decisions or probabilities of associated outcomes are unknown. We identified four theoretically important sources of uncertainty: temporal environmental variability; payoff ambiguity; selection-set size; and effective lifespan. When these combine, it is nearly impossible to fully learn about the environment. We develop an evolutionary agent-based model to test how each form of uncertainty affects the evolution of social learning. Agents perform one of several behaviours, modelled as a multi-armed bandit, to acquire payoffs. All agents learn about behavioural payoffs individually through an adaptive behaviour-choice model that uses a softmax decision rule. Use of vertical and oblique payoff-biased social learning evolved to serve as a scaffold for adaptive individual learning - they are not opposite strategies. Different types of uncertainty had varying effects. Temporal environmental variability suppressed social learning, whereas larger selection-set size promoted social learning, even when the environment changed frequently. Payoff ambiguity and lifespan interacted with other uncertainty parameters. This study begins to explain how social learning can predominate despite highly variable real-world environments when effective individual learning helps individuals recover from learning outdated social information.
    Language English
    Publishing date 2023-05-22
    Publishing country England
    Document type Journal Article
    ISSN 2513-843X
    ISSN (online) 2513-843X
    DOI 10.1017/ehs.2023.11
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  5. Article ; Online: Uncertainty about future payoffs makes impatience rational.

    Jones, James Holland

    The Behavioral and brain sciences

    2017  Volume 40, Page(s) e330

    Abstract: Uncertainty (i.e., variable payoffs with unknown probabilities) brings together a number of features of the authors' argument. It leads to present bias, even for completely rational agents with time-consistent preferences. As an evolutionary product of ... ...

    Abstract Uncertainty (i.e., variable payoffs with unknown probabilities) brings together a number of features of the authors' argument. It leads to present bias, even for completely rational agents with time-consistent preferences. As an evolutionary product of Pleistocene climate instability, humans possess broad adaptations to environmental uncertainty, giving rise to key features of the behavioral constellation of deprivation (BCD).
    MeSH term(s) Animals ; Biological Evolution ; Climate ; Forecasting ; Hominidae ; Humans ; Uncertainty
    Language English
    Publishing date 2017-11-21
    Publishing country England
    Document type Journal Article ; Comment
    ZDB-ID 423721-3
    ISSN 1469-1825 ; 0140-525X
    ISSN (online) 1469-1825
    ISSN 0140-525X
    DOI 10.1017/S0140525X17001005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1470: Show issues Location:
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  6. Article ; Online: Fitness-maximizers employ pessimistic probability weighting for decisions under risk.

    Price, Michael Holton / Jones, James Holland

    Evolutionary human sciences

    2020  Volume 2, Page(s) e28

    Abstract: The standard theory of rationality posits that agents order preferences according to average utilities associated with different choices. Expected utility theory has repeatedly failed as a predictive theory, as reflected in a growing literature in ... ...

    Abstract The standard theory of rationality posits that agents order preferences according to average utilities associated with different choices. Expected utility theory has repeatedly failed as a predictive theory, as reflected in a growing literature in behavioural economics. Evolutionary theorists have suggested that seemingly irrational behaviours in contemporary contexts may have once served important functions, but existing work linking fitness and choice has not adequately addressed the challenges of constructing an evolutionary theory of decision making. In particular, fitness itself is not a reasonable metric for decision making since its timescale exceeds the lifespan of the decision-maker. Consequently, organisms use proximate systems that work on appropriate timescales and are amenable to feedback and learning. We develop an evolutionary principal-agent model in which individuals utilize a set of proximal choice variables to account for the non-linear dependence of these variables on consumption. While this is insufficient to maximize fitness in the presence of environmental stochasticity, maximum fitness can be achieved by adopting pessimistic probability weightings compatible with the rank-dependent expected utility family of choice models. In particular, pessimistic probability weighting emerges naturally in an evolutionary framework because of extreme intolerance to zeros in multiplicative growth processes.
    Language English
    Publishing date 2020-06-01
    Publishing country England
    Document type Journal Article
    ISSN 2513-843X
    ISSN (online) 2513-843X
    DOI 10.1017/ehs.2020.28
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  7. Article ; Online: Do people manage climate risk through long-distance relationships?

    Pisor, Anne C / Jones, James Holland

    American journal of human biology : the official journal of the Human Biology Council

    2020  Volume 33, Issue 4, Page(s) e23525

    Abstract: Objectives: Long-distance social relationships have been a feature of human evolutionary history; evidence from the paleoanthropological, archeological, and ethnographic records suggest that one function of these relationships is to manage the risk of ... ...

    Abstract Objectives: Long-distance social relationships have been a feature of human evolutionary history; evidence from the paleoanthropological, archeological, and ethnographic records suggest that one function of these relationships is to manage the risk of resource shortfalls due to climate variability. We should expect long-distance relationships to be especially important when shortfalls are chronic or temporally positively autocorrelated, as these are more likely to exhaust local adaptations for managing risk. Further, individuals who experience shortfalls not as rare shocks, but as patterned events, should be more likely to pay the costs of maintaining long-distance relationships. We test these hypotheses in the context of two communities of Bolivian horticulturalists, where climate variability-especially precipitation variability-is relevant to production and access to long-distance connections is improving.
    Methods: Data on individuals' migration histories, social relationships, and other relevant variables were collected in 2017 (n = 119). Precipitation data were obtained from the US National Center for Atmospheric Research, allowing us to estimate participants' exposure to drought and excess precipitation.
    Results: Exposure duration, proximity in time, and frequency did not predict having a greater number of long-distance relationships. Males, extraverted individuals, and those who had traveled more did have more long-distance relationships, however.
    Conclusion: Another function of long-distance relationships is to access resources that can never be obtained locally; ethnographic data suggest this is their primary function in rural Bolivia. We conclude by refining our predictions about the conditions under which long-distance relationships are likely to help individuals manage the risks posed by climate variability.
    MeSH term(s) Bolivia ; Climate ; Family Characteristics ; Female ; Humans ; Male ; Risk ; Risk Assessment
    Language English
    Publishing date 2020-10-26
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1025339-7
    ISSN 1520-6300 ; 1042-0533
    ISSN (online) 1520-6300
    ISSN 1042-0533
    DOI 10.1002/ajhb.23525
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2567: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
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  8. Article ; Online: Remoteness influences access to sexual partners and drives patterns of viral sexually transmitted infection prevalence among nomadic pastoralists.

    Hazel, Ashley / Holland Jones, James

    PloS one

    2018  Volume 13, Issue 1, Page(s) e0191168

    Abstract: Sexually transmitted infections (STIs) comprise a significant portion of the infectious-disease burden among rural people in the Global South. Particular characteristics of ruralness-low-density settlements and poor infrastructure-make healthcare ... ...

    Abstract Sexually transmitted infections (STIs) comprise a significant portion of the infectious-disease burden among rural people in the Global South. Particular characteristics of ruralness-low-density settlements and poor infrastructure-make healthcare provision difficult, and remoteness, typically a characteristic of ruralness, often compounds the difficultly. Remoteness may also accelerate STI transmission, particularly that of viral STIs, through formation of small, highly connected sexual networks through which pathogens can spread rapidly, especially when partner concurrency is broadly accepted. Herein, we explored the effect of remoteness on herpes simplex virus type-2 (HSV-2) epidemiology among semi-nomadic pastoralists in northwestern (Kaokoveld) Namibia, where, in 2009 we collected HSV-2-specific antibody status, demographic, sexual network, and travel data from 446 subjects (women = 213, men = 233) in a cross-sectional study design. HSV-2 prevalence was high overall in Kaokoveld (>35%), but was heterogeneously distributed across locally defined residential regions: some regions had significantly higher HSV-2 prevalence (39-48%) than others (21-33%). Using log-linear models, we asked the following questions: 1) Are sexual contacts among people in high HSV-2-prevalence regions more likely to be homophilous (i.e., from the same region) than those among people from low-prevalence regions? 2) Are high-prevalence regions more "functionally" remote, in that people from those regions are more likely to travel within their own region than outside, compared to people from other regions? We found that high-prevalence regions were more sexually homophilous than low-prevalence regions and that those regions also had higher rates of within-region travel than the other regions. These findings indicate that remoteness can create contact structures for accelerated STI transmission among people who are already disproportionately vulnerable to consequences of untreated STIs.
    MeSH term(s) Adult ; Cross-Sectional Studies ; Female ; Herpes Genitalis/epidemiology ; Herpesvirus 2, Human ; Humans ; Linear Models ; Male ; Middle Aged ; Namibia/epidemiology ; Prevalence ; Rural Population ; Sexual Behavior ; Sexual Partners ; Sexually Transmitted Diseases, Viral/epidemiology ; Transients and Migrants ; Young Adult
    Language English
    Publishing date 2018-01-31
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0191168
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  9. Article: Outlook for Implementation of Genomics-Based Selection in Public Cotton Breeding Programs.

    Billings, Grant T / Jones, Michael A / Rustgi, Sachin / Bridges, William C / Holland, James B / Hulse-Kemp, Amanda M / Campbell, B Todd

    Plants (Basel, Switzerland)

    2022  Volume 11, Issue 11

    Abstract: Researchers have used quantitative genetics to map cotton fiber quality and agronomic performance loci, but many alleles may be population or environment-specific, limiting their usefulness in a pedigree selection, inbreeding-based system. Here, we ... ...

    Abstract Researchers have used quantitative genetics to map cotton fiber quality and agronomic performance loci, but many alleles may be population or environment-specific, limiting their usefulness in a pedigree selection, inbreeding-based system. Here, we utilized genotypic and phenotypic data on a panel of 80 important historical Upland cotton (
    Language English
    Publishing date 2022-05-29
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2704341-1
    ISSN 2223-7747
    ISSN 2223-7747
    DOI 10.3390/plants11111446
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  10. Article ; Online: Transmission-dynamics models for the SARS Coronavirus-2.

    Jones, James Holland / Hazel, Ashley / Almquist, Zack

    American journal of human biology : the official journal of the Human Biology Council

    2020  Volume 32, Issue 5, Page(s) e23512

    MeSH term(s) Betacoronavirus ; COVID-19 ; Coronavirus Infections/epidemiology ; Coronavirus Infections/transmission ; Disease Transmission, Infectious/statistics & numerical data ; Humans ; Models, Statistical ; Pandemics ; Pneumonia, Viral/epidemiology ; Pneumonia, Viral/transmission ; SARS-CoV-2
    Keywords covid19
    Language English
    Publishing date 2020-09-25
    Publishing country United States
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S. ; Review
    ZDB-ID 1025339-7
    ISSN 1520-6300 ; 1042-0533
    ISSN (online) 1520-6300
    ISSN 1042-0533
    DOI 10.1002/ajhb.23512
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2567: Show issues Location:
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