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  1. Article: What you have, not who you know: food-enhanced social capital and changes in social behavioural relationships in a non-human primate.

    Blersch, Rosemary / Vandeleest, Jessica J / Nathman, Amy C / Pósfai, Márton / D'Souza, Raissa / McCowan, Brenda / Beisner, Brianne A

    Royal Society open science

    2024  Volume 11, Issue 1, Page(s) 231460

    Abstract: Social network position in non-human primates has far-reaching fitness consequences. Critically, social networks are both heterogeneous and dynamic, meaning an individual's current network position is likely to change due to both intrinsic and extrinsic ... ...

    Abstract Social network position in non-human primates has far-reaching fitness consequences. Critically, social networks are both heterogeneous and dynamic, meaning an individual's current network position is likely to change due to both intrinsic and extrinsic factors. However, our understanding of the drivers of changes in social network position is largely confined to opportunistic studies. Experimental research on the consequences of
    Language English
    Publishing date 2024-01-17
    Publishing country England
    Document type Journal Article
    ZDB-ID 2787755-3
    ISSN 2054-5703
    ISSN 2054-5703
    DOI 10.1098/rsos.231460
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Sex Differences in Hierarchical Stability in a Formation of a Mixed-sex Group of Rhesus Macaques.

    Wooddell, Lauren J / Beisner, Brianne A / Nathman, Amy C / Day, Ashleigh / Cameron, Ashley / Pomerantz, Ori / McCowan, Brenda

    Journal of the American Association for Laboratory Animal Science : JAALAS

    2021  Volume 61, Issue 1, Page(s) 67–74

    Abstract: Forming groups of captive rhesus ... ...

    Abstract Forming groups of captive rhesus macaques
    MeSH term(s) Aggression ; Animals ; Female ; Macaca mulatta ; Male ; Sex Characteristics ; Social Dominance
    Language English
    Publishing date 2021-12-13
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ISSN 2769-6677
    ISSN (online) 2769-6677
    DOI 10.30802/AALAS-JAALAS-21-000067
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Increased produce enrichment reduces trauma in socially-housed captive rhesus macaques (Macaca mulatta).

    Wooddell, Lauren J / Beisner, Brianne / Hannibal, Darcy L / Nathman, Amy C / McCowan, Brenda

    American journal of primatology

    2019  Volume 81, Issue 12, Page(s) e23073

    Abstract: Due to primate adaptations for sociality, captive rhesus macaques have optimal welfare and utility as a biomedical model when they can be maintained in outdoor social groups. As a despotic species; however, aggression can result in costly injuries and ... ...

    Abstract Due to primate adaptations for sociality, captive rhesus macaques have optimal welfare and utility as a biomedical model when they can be maintained in outdoor social groups. As a despotic species; however, aggression can result in costly injuries and may result in temporary or permanent removal of specific individuals from social housing. Enrichment items, such as toys, climbing structures, and foraging material, are employed to keep captive animals occupied. We hypothesized that produce enrichment that requires more processing to extract may reduce socially-derived injuries by keeping animals occupied. We tested the effects of additional weekly produce (corn-in-husk, whole melon, or whole squash) on trauma incidence in an outdoor social group of rhesus macaques across two distinct seasons (mating and birthing seasons) at the California National Primate Research Center. Aggression and status behavioral data, food resource use and proximity, and trauma incidence were collected over two 16-week periods, with eight control and treatment conditions alternating biweekly. Mixed-effects regression modeling was used to determine the best predictors of trauma risk and severe aggression at the group level and at an individual level. We found that food resource use was an important predictor of trauma risk at both group and individual levels; greater use of food resources reduced trauma risk. Produce enrichment did not; however, reduce severe aggression. We suggest that other captive social groups of rhesus macaques with high levels of trauma may benefit from supplemental produce enrichment that increases animal engagement with food resources.
    MeSH term(s) Aggression ; Animal Welfare ; Animals ; Animals, Laboratory ; Animals, Zoo ; California ; Female ; Food ; Macaca mulatta/psychology ; Male ; Seasons
    Language English
    Publishing date 2019-11-28
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 1495834-X
    ISSN 1098-2345 ; 0275-2565
    ISSN (online) 1098-2345
    ISSN 0275-2565
    DOI 10.1002/ajp.23073
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Decoupling social status and status certainty effects on health in macaques: a network approach.

    Vandeleest, Jessica J / Beisner, Brianne A / Hannibal, Darcy L / Nathman, Amy C / Capitanio, John P / Hsieh, Fushing / Atwill, Edward R / McCowan, Brenda

    PeerJ

    2016  Volume 4, Page(s) e2394

    Abstract: Background: Although a wealth of literature points to the importance of social factors on health, a detailed understanding of the complex interplay between social and biological systems is lacking. Social status is one aspect of social life that is made ...

    Abstract Background: Although a wealth of literature points to the importance of social factors on health, a detailed understanding of the complex interplay between social and biological systems is lacking. Social status is one aspect of social life that is made up of multiple structural (humans: income, education; animals: mating system, dominance rank) and relational components (perceived social status, dominance interactions). In a nonhuman primate model we use novel network techniques to decouple two components of social status, dominance rank (a commonly used measure of social status in animal models) and dominance certainty (the relative certainty vs. ambiguity of an individual's status), allowing for a more complex examination of how social status impacts health.
    Methods: Behavioral observations were conducted on three outdoor captive groups of rhesus macaques (N = 252 subjects). Subjects' general physical health (diarrhea) was assessed twice weekly, and blood was drawn once to assess biomarkers of inflammation (interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α), and C-reactive protein (CRP)).
    Results: Dominance rank alone did not fully account for the complex way that social status exerted its effect on health. Instead, dominance certainty modified the impact of rank on biomarkers of inflammation. Specifically, high-ranked animals with more ambiguous status relationships had higher levels of inflammation than low-ranked animals, whereas little effect of rank was seen for animals with more certain status relationships. The impact of status on physical health was more straightforward: individuals with more ambiguous status relationships had more frequent diarrhea; there was marginal evidence that high-ranked animals had less frequent diarrhea.
    Discussion: Social status has a complex and multi-faceted impact on individual health. Our work suggests an important role of uncertainty in one's social status in status-health research. This work also suggests that in order to fully explore the mechanisms for how social life influences health, more complex metrics of social systems and their dynamics are needed.
    Language English
    Publishing date 2016-09-13
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2703241-3
    ISSN 2167-8359
    ISSN 2167-8359
    DOI 10.7717/peerj.2394
    Database MEDical Literature Analysis and Retrieval System OnLINE

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