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  1. AU="Dyble, Mark"
  2. AU="Bakina, O. V"
  3. AU="Donna M Lehman"
  4. AU="Blümel, Juan E"
  5. AU="Wu, Kui"
  6. AU="Lenden Hasse, Hélène"
  7. AU="Proffitt, Kamron S"
  8. AU="Liu, Jianxing"
  9. AU="Rubagotti, Enrico"
  10. AU="Patruno, A."
  11. AU="Amrutha Nisthul, A"
  12. AU="Fischer, K." AU="Fischer, K."
  13. AU="Pushap Raj"
  14. AU="Martin-Vila, Alicia"
  15. AU="Houska, Jiri"
  16. AU="Uwer, Lionel"
  17. AU="Yoo, Heejin"

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Treffer 1 - 10 von insgesamt 36

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  1. Artikel: Explaining variation in the kinship composition of mammal groups.

    Dyble, Mark

    Behavioral ecology : official journal of the International Society for Behavioral Ecology

    2024  Band 35, Heft 3, Seite(n) arae032

    Abstract: Variation in cooperative behavior across mammals is strongly related to the kinship composition of groups. Although the factors affecting average genetic relatedness within groups have been studied, the factors that contribute to the production of ... ...

    Abstract Variation in cooperative behavior across mammals is strongly related to the kinship composition of groups. Although the factors affecting average genetic relatedness within groups have been studied, the factors that contribute to the production of different categories of kin remain underexplored. Here, I use a mathematical model to explore the factors that determine the proportion of full siblings, maternal half-siblings, paternal half-siblings, and non-siblings within mammal groups. The results suggest that the production of paternal half-siblings is increased by high male reproductive skew and a female-biased sex ratio, the production of maternal half-siblings is increased by high female reproductive skew and male-biased sex ratio, and that there are two routes to the production of full siblings: either high reproductive skew in both sexes (as seen in cooperatively breeding species) or pair-bond stability within groups of low reproductive skew (as seen in humans). These results broadly correspond to observed variation in sibling composition across mammals.
    Sprache Englisch
    Erscheinungsdatum 2024-04-17
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 1496189-1
    ISSN 1465-7279 ; 1045-2249
    ISSN (online) 1465-7279
    ISSN 1045-2249
    DOI 10.1093/beheco/arae032
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel: Population turnover, behavioral conservatism, and rates of cultural evolution.

    Dyble, Mark / Micheletti, Alberto J C

    Behavioral ecology : official journal of the International Society for Behavioral Ecology

    2024  Band 35, Heft 2, Seite(n) arae003

    Abstract: Cultural evolution facilitates behavioral adaptation in many species. The pace of cultural evolution can be accelerated by population turnover, where newcomers (immigrants or juvenile recruits) introduce adaptive cultural traits into their new group. ... ...

    Abstract Cultural evolution facilitates behavioral adaptation in many species. The pace of cultural evolution can be accelerated by population turnover, where newcomers (immigrants or juvenile recruits) introduce adaptive cultural traits into their new group. However, where newcomers are naïve to the challenges of their new group, population turnover could potentially slow the rate of cultural evolution. Here, we model cultural evolution with population turnover and show that even if turnover results in the replacement of experienced individuals with naïve ones, turnover can still accelerate cultural evolution if (1) the rate of social learning is more than twice as fast as the turnover rate and (b) newcomers are more likely to learn socially than behaviorally conservative existing group members. Although population turnover is a relatively simple factor, it is common to all animal societies, and variation in the turnover rate may potentially play an important role in explaining variation in the occurrence and rates of adaptive cultural evolution across species.
    Sprache Englisch
    Erscheinungsdatum 2024-01-17
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 1496189-1
    ISSN 1465-7279 ; 1045-2249
    ISSN (online) 1465-7279
    ISSN 1045-2249
    DOI 10.1093/beheco/arae003
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel ; Online: The evolution of altruism through war is highly sensitive to population structure and to civilian and fighter mortality.

    Dyble, Mark

    Proceedings of the National Academy of Sciences of the United States of America

    2021  Band 118, Heft 11

    Abstract: The importance of warfare in the evolution of human social behavior remains highly debated. One hypothesis is that intense warfare between groups favored altruism within groups, a hypothesis given some support by computational modeling and, in particular, ...

    Abstract The importance of warfare in the evolution of human social behavior remains highly debated. One hypothesis is that intense warfare between groups favored altruism within groups, a hypothesis given some support by computational modeling and, in particular, the work of Choi and Bowles [J.-K. Choi, S. Bowles,
    Mesh-Begriff(e) Altruism ; Armed Conflicts ; Cooperative Behavior ; Cultural Evolution ; Humans ; Models, Psychological ; Mortality
    Sprache Englisch
    Erscheinungsdatum 2021-04-09
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 209104-5
    ISSN 1091-6490 ; 0027-8424
    ISSN (online) 1091-6490
    ISSN 0027-8424
    DOI 10.1073/pnas.2011142118
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  4. Artikel: Turnover in male dominance offsets the positive effect of polygyny on within-group relatedness.

    Dyble, Mark / Clutton-Brock, Tim H

    Behavioral ecology : official journal of the International Society for Behavioral Ecology

    2023  Band 34, Heft 2, Seite(n) 261–268

    Abstract: Evidence of an association between cooperative breeding systems and average coefficients of relatedness between group members in vertebrates have led to increased interest in the social and ecological factors affecting average kinship within groups. ... ...

    Abstract Evidence of an association between cooperative breeding systems and average coefficients of relatedness between group members in vertebrates have led to increased interest in the social and ecological factors affecting average kinship within groups. Previous studies have suggested that polygynous mating systems and high degrees of male reproductive skew increase average relatedness because they increase the proportion of offspring born in each group that are paternal siblings. Although this may be the case in semelparous organisms, in many multiparous polygynous animals, intense competition between males shortens the breeding tenure of males and leads to their frequent replacement by competitors which reduces paternal relatedness and average kinship between members of multigenerational groups. Here, we explore the interaction between male reproductive skew and the frequency of turnover in breeding males and its effects on within-group relatedness. Our theoretical model shows that increases in rates of dominance turnover in polygynous systems can offset the positive effect of male skew on relatedness between group members within seasons, showing that polygynous mating systems will not necessarily lead to significant increases in average relatedness, especially in species where there is extensive overlap between generations among group members.
    Sprache Englisch
    Erscheinungsdatum 2023-02-06
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 1496189-1
    ISSN 1465-7279 ; 1045-2249
    ISSN (online) 1465-7279
    ISSN 1045-2249
    DOI 10.1093/beheco/arac121
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  5. Artikel: Sustainability of social–ecological systems: The difference between social rules and management rules

    Chiaravalloti, Rafael M. / Homewood, Katherine / Dyble, Mark

    Conservation letters. 2021 Sept., v. 14, no. 5

    2021  

    Abstract: Most conservation and development initiatives assume that rules limiting resource extraction are necessary for ecological sustainability. While this is often true, in some social–ecological systems, unpredictable ecosystem dynamics and limited ... ...

    Abstract Most conservation and development initiatives assume that rules limiting resource extraction are necessary for ecological sustainability. While this is often true, in some social–ecological systems, unpredictable ecosystem dynamics and limited exploitation technology make it unlikely that people will overstep the ecological threshold, precluding the need for management rules. Here, two kinds of systems can emerge: open access systems in which individuals can meet their needs without cooperating with others, and a cooperative open access system in which social rules are required though management rules are not, because individuals need to cooperate to survive and to prevent erosion of cooperation by free‐riders. We provide three brief case studies illustrating cooperative open access: Pantaneiro fishers, Agta hunter‐gatherers, and Maasai pastoralists. We conclude that understanding these exceptions is pivotal for a better theoretical understanding of social–ecological systems, and can be valuable in building a strategic approach to conservation.
    Schlagwörter ecosystems ; environmental sustainability ; people
    Sprache Englisch
    Erscheinungsverlauf 2021-09
    Erscheinungsort John Wiley & Sons, Ltd
    Dokumenttyp Artikel
    Anmerkung LETTER
    ZDB-ID 2430375-6
    ISSN 1755-263X
    ISSN 1755-263X
    DOI 10.1111/conl.12826
    Datenquelle NAL Katalog (AGRICOLA)

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  6. Artikel: Wealth, health and inequality in Agta foragers.

    Page, Abigail E / Ruiz, Milagros / Dyble, Mark / Major-Smith, Daniel / Migliano, Andrea B / Myers, Sarah

    Evolution, medicine, and public health

    2023  Band 11, Heft 1, Seite(n) 149–162

    Abstract: Background and objectives: There is significant evidence from large-scale, industrial and post-industrial societies that greater income and wealth inequality is negatively associated with both population health and increasing health inequalities. ... ...

    Abstract Background and objectives: There is significant evidence from large-scale, industrial and post-industrial societies that greater income and wealth inequality is negatively associated with both population health and increasing health inequalities. However, whether such relationships are inevitable and should be expected to impact the health of small-scale societies as they become more market-integrated is less clear.
    Methodology: Here, using mixed-effect models, we explore the relationship between health, wealth, wealth inequality and health inequalities in a small-scale foraging population from the Philippines, the Agta.
    Results: Across 11 camps, we find small to moderate degrees of wealth inequality (maximal Gini Coefficient 0.44) which is highest in the most permanent camps, where individuals engage more heavily in the formal market. However, in both adults (
    Conclusions and implications: We interpret these results in the light of high levels of cooperation among the Agta which may buffer against the detrimental effects of wealth inequality documented in industrial and post-industrial societies. We observe little intergenerational wealth transmission, highlighting the fluid nature of wealth, and thus wealth inequality, particularly in mobile communities. The deterioration of nutritional status, as indicated by red blood cell counts, requires further investigation before concluding the Agta's extensive cooperation networks may be beginning to breakdown in the face of increasing inequality.
    Sprache Englisch
    Erscheinungsdatum 2023-05-15
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2684837-5
    ISSN 2050-6201
    ISSN 2050-6201
    DOI 10.1093/emph/eoad015
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  7. Artikel: Limited open access in socioecological systems: How do communities deal with environmental unpredictability?

    Chiaravalloti, Rafael Morais / Dyble, Mark

    Conservation letters. 2019 Mar., v. 12, no. 2

    2019  

    Abstract: Classical theory on the commons holds that rules are fundamental to sustainability. However, open access may be present in many sustainable socioecological systems. Here, we explore the interaction between environmental unpredictability and cooperation ... ...

    Abstract Classical theory on the commons holds that rules are fundamental to sustainability. However, open access may be present in many sustainable socioecological systems. Here, we explore the interaction between environmental unpredictability and cooperation in a fishery in the Pantanal wetland, Brazil. We show that a variable annual flood pulse combined with channel blockages results in a high turnover in fishing grounds. To counter this variability, fishers openly share information about fishing areas with all community members, but are highly territorial with neighboring communities. We argue that this open access within communities but common property between communities represents a system of limited open access and, using a mathematical model, suggest that such a system is favored under conditions of moderate competition and high levels of resource unpredictability. Failing to take into account the social norms that underpin limited open access systems may undermine conservation interventions.
    Schlagwörter fisheries ; fishery resources ; mathematical models ; social behavior ; social environment ; wetlands ; Brazil ; Pantanal
    Sprache Englisch
    Erscheinungsverlauf 2019-03
    Erscheinungsort John Wiley & Sons, Ltd
    Dokumenttyp Artikel
    Anmerkung LETTER
    ISSN 1755-263X
    DOI 10.1111/conl.12616
    Datenquelle NAL Katalog (AGRICOLA)

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  8. Artikel ; Online: Relatedness within and between Agta residential groups.

    Dyble, Mark / Migliano, Andrea Bamberg / Page, Abigail E / Smith, Daniel

    Evolutionary human sciences

    2021  Band 3, Seite(n) e49

    Abstract: Theoretical models relating to the evolution of human behaviour usually make assumptions about the kinship structure of social groups. Since humans were hunter-gatherers for most of our evolutionary history, data on the composition of contemporary hunter- ...

    Abstract Theoretical models relating to the evolution of human behaviour usually make assumptions about the kinship structure of social groups. Since humans were hunter-gatherers for most of our evolutionary history, data on the composition of contemporary hunter-gatherer groups has long been used to inform these models. Although several papers have taken a broad view of hunter-gatherer social organisation, it is also useful to explore data from single populations in more depth. Here, we describe patterns of relatedness among the Palanan Agta, hunter-gatherers from the northern Philippines. Across 271 adults, mean relatedness to adults across the population is
    Sprache Englisch
    Erscheinungsdatum 2021-09-22
    Erscheinungsland England
    Dokumenttyp Journal Article
    ISSN 2513-843X
    ISSN (online) 2513-843X
    DOI 10.1017/ehs.2021.46
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  9. Artikel ; Online: Sedentarization and maternal childcare networks: role of risk, gender and demography.

    Page, Abigail E / Migliano, Andrea B / Dyble, Mark / Major-Smith, Daniel / Viguier, Sylvain / Hassan, Anushé

    Philosophical transactions of the Royal Society of London. Series B, Biological sciences

    2022  Band 378, Heft 1868, Seite(n) 20210435

    Abstract: Women cooperate over multiple domains and while research from western contexts portrays women's networks as limited in size and breadth, women receive help, particularly with childcare, from a diverse range of individuals (allomothers). Nonetheless, ... ...

    Abstract Women cooperate over multiple domains and while research from western contexts portrays women's networks as limited in size and breadth, women receive help, particularly with childcare, from a diverse range of individuals (allomothers). Nonetheless, little exploration has occurred into why we see such diversity. Wide maternal childcare networks may be a consequence of a lack of resource accumulation in mobile hunter-gatherers-where instead households rely on risk-pooling in informal insurance networks. By contrast, when households settle and accumulate resources, they are able to
    Mesh-Begriff(e) Child ; Humans ; Male ; Female ; Child Care ; Child Health ; Grandparents ; Mothers ; Family Characteristics
    Sprache Englisch
    Erscheinungsdatum 2022-11-28
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 208382-6
    ISSN 1471-2970 ; 0080-4622 ; 0264-3839 ; 0962-8436
    ISSN (online) 1471-2970
    ISSN 0080-4622 ; 0264-3839 ; 0962-8436
    DOI 10.1098/rstb.2021.0435
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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    Einzelsignatur: Hefte anzeigen

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  10. Artikel ; Online: Cooperation and partner choice among Agta hunter-gatherer children: An evolutionary developmental perspective.

    Major-Smith, Daniel / Chaudhary, Nikhil / Dyble, Mark / Major-Smith, Katie / Page, Abigail E / Salali, Gul Deniz / Mace, Ruth / Migliano, Andrea B

    PloS one

    2023  Band 18, Heft 4, Seite(n) e0284360

    Abstract: Examining development is essential for a full understanding of behaviour, including how individuals acquire traits and how adaptive evolutionary forces shape these processes. The present study explores the development of cooperative behaviour among the ... ...

    Abstract Examining development is essential for a full understanding of behaviour, including how individuals acquire traits and how adaptive evolutionary forces shape these processes. The present study explores the development of cooperative behaviour among the Agta, a Filipino hunter-gatherer population. A simple resource allocation game assessing both levels of cooperation (how much children shared) and patterns of partner choice (who they shared with) was played with 179 children between the ages of 3 and 18. Children were given five resources (candies) and for each was asked whether to keep it for themselves or share with someone else, and if so, who this was. Between-camp variation in children's cooperative behaviour was substantial, and the only strong predictor of children's cooperation was the average level of cooperation among adults in camp; that is, children were more cooperative in camps where adults were more cooperative. Neither age, sex, relatedness or parental levels of cooperation were strongly associated with the amount children shared. Children preferentially shared with close kin (especially siblings), although older children increasingly shared with less-related individuals. Findings are discussed in terms of their implications for understanding cross-cultural patterns of children's cooperation, and broader links with human cooperative childcare and life history evolution.
    Mesh-Begriff(e) Adolescent ; Adult ; Child ; Child, Preschool ; Humans ; Asian People ; Camping ; Child Health ; Cooperative Behavior ; Siblings
    Sprache Englisch
    Erscheinungsdatum 2023-04-26
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0284360
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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