The social transmission of stress in animal collectives

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2022, Volume and Issue: 289(1974)

Published: May 11, 2022

The stress systems are powerful mediators between the organism's systemic dynamic equilibrium and changes in its environment beyond level of anticipated fluctuations. Over- or under-activation systems' responses can impact an animal's health, survival reproductive success. While physiological their influence on behaviour performance well understood at individual level, it remains largely unknown whether-and how-stressed individuals affect other group members, consequently collective behaviour. Stressed could directly signal presence a stressor (e.g. via alarm call pheromones), acute chronic activation be perceived by others (as indirect cue) spread social contagion. Such transmission then amplify effects stressors impacting interactions, dynamics groups. As neuroendocrine pathways response highly conserved among vertebrates, states more widespread non-human animals than previously thought. We therefore suggest that identifying extent to which modulates animal collectives represents important research avenue.

Language: Английский

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Stress in the social context: a behavioural and eco-evolutionary perspective

Journal of Experimental Biology, Journal Year: 2023, Volume and Issue: 226(15)

Published: Aug. 1, 2023

ABSTRACT The social environment is one of the primary sources challenging stimuli that can induce a stress response in animals. It comprises both short-term and stable interactions among conspecifics (including unrelated individuals, mates, potential mates kin). Social unique interest field research because (1) domain arguably most complex fluctuating component an animal's environment; (2) socially transmissible; (3) be buffered by partners. Thus, cause cure stress. Here, we review history research, discuss stressors their effects on organisms across early life adulthood. We also consider cross-generational effects. physiological mechanisms underpinning responses, as well adaptive value responses to stressors. Finally, identify outstanding challenges propose framework for addressing these future work.

Language: Английский

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Rethinking stress resilience

Trends in Neurosciences, Journal Year: 2021, Volume and Issue: 44(12), P. 936 - 945

Published: Oct. 25, 2021

Language: Английский

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Interpersonal early adversity demonstrates dissimilarity from early socioeconomic disadvantage in the course of human brain development: A meta-analysis

Neuroscience & Biobehavioral Reviews, Journal Year: 2023, Volume and Issue: 150, P. 105210 - 105210

Published: May 3, 2023

Language: Английский

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Effects of chronic stress on cognitive function – From neurobiology to intervention

Neurobiology of Stress, Journal Year: 2024, Volume and Issue: 33, P. 100670 - 100670

Published: Sept. 3, 2024

Exposure to chronic stress contributes considerably the development of cognitive impairments in psychiatric disorders such as depression, generalized anxiety disorder (GAD), obsessive-compulsive (OCD), post-traumatic (PTSD), and addictive behavior. Unfortunately, unlike mood-related symptoms, are not effectively treated by available therapies, a situation part resulting from still incomplete knowledge neurobiological substrates that underly domains difficulty generating interventions both efficacious safe. In this review, we will present an overview affected with specific focus on flexibility, behavioral inhibition, working memory. We then consider effects neuronal correlates function factors which may modulate interaction cognition. Finally, discuss intervention strategies for treatment stress-related gaps emerging new treatments under development. Understanding how impairment occurs during exposure is crucial make progress towards effective therapeutic approaches.

Language: Английский

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More allogrooming is followed by higher physiological stress in wild female baboons

Biology Letters, Journal Year: 2024, Volume and Issue: 20(8)

Published: Aug. 1, 2024

Social bonds increase fitness in a range of mammals. One pathway by which social may is reducing the exposure to physiological stress, i.e. glucocorticoid (GC) hormones, that can be detrimental health and survival. This achieved through downregulating hypothalamic–pituitary–adrenal (HPA)-axis activity. Indeed, long-term measures (grooming) are often negatively correlated with HPA-axis However, proximate role physical touch allogrooming remains an open question sociality–health–fitness debate. Demonstrating potential anxiolytic benefits grooming wild hindered methodological limitations. Here, we match accelerometer-identified female chacma baboons ( Papio ursinus ) non-invasive faecal GC metabolite concentrations (fGCs). Consistent previous work, found negative (but statistically non-significant) overall relationship between individual averaged fGCs rates. when time-matching fGCs, both more giving receiving were followed higher fGCs. upregulation activity suggests maintaining (and its ultimate benefits) come at shorter-term cost. finding sheds new light on ubiquitous behaviour typically considered ‘relaxing’ sociopositive contact trigger stress.

Language: Английский

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Resilience to stress and social touch

Current Opinion in Behavioral Sciences, Journal Year: 2021, Volume and Issue: 43, P. 75 - 79

Published: Sept. 14, 2021

Language: Английский

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Variation in diurnal cortisol patterns among the Indigenous Shuar of Amazonian Ecuador

American Journal of Human Biology, Journal Year: 2024, Volume and Issue: 37(1)

Published: March 22, 2024

The hypothalamic-pituitary-adrenal (HPA) axis and its primary end product, the glucocorticoid cortisol, are major components of evolved human stress response. However, most studies have examined these systems among populations in high-income settings, which differ from high pathogen limited resource contexts HPA functioned for evolution. We investigated variability diurnal salivary cortisol patterns 298 Indigenous Shuar Amazonian Ecuador (147 males, 151 females; age 2-86 years), focusing on effects age, biological sex, body mass index (BMI) shaping differences production. Saliva samples were collected three times daily (waking, 30 minutes post-waking, evening) consecutive days to measure key parameters: levels at waking, awakening response, slope, total output. Age was positively associated with waking output, juveniles adolescents displaying significantly lower than adults (p < .05). Sex not a significant predictor > .05), as males females displayed similar production across life course. Moreover, BMI interacted moderate rate decline = .027). Overall, demonstrated relatively concentrations populations. This study expands documented range global variation activity provides important insights into plasticity physiology diverse developmental socioecological settings.

Language: Английский

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Stress responsiveness in a wild primate predicts survival across an extreme El Niño drought

Science Advances, Journal Year: 2025, Volume and Issue: 11(4)

Published: Jan. 22, 2025

We know more about the costs of chronic stress than benefits acute response—an adaptive response that buffers organisms from life-threatening challenges. As yet, no primate study has empirically identified how adaptively affects evolutionary fitness. Here, we take advantage a natural experiment—an El Niño drought—that produced unprecedented mortality for wild white-faced capuchins. Using reaction norm approach, provide evidence primates robust to challenge, measured using fecal glucocorticoids, predicts greater likelihood survival. show individuals with responsiveness previous droughts later had higher survival across severe drought. Evolutionary models need empirical data on responsivity varies in ways. While cannot buffer subjects catastrophic events, can use them understand which aspects help animals “weather storm.”

Language: Английский

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Corticosterone and Mitochondrial Efficiency Are Associated With Changes in DNA Oxidative Damage During an Acute Stress Response in Leach's Storm‐Petrels (Hydrobates leucorhous)

Journal of Experimental Zoology Part A Ecological and Integrative Physiology, Journal Year: 2025, Volume and Issue: unknown

Published: March 24, 2025

ABSTRACT The ability of organisms to effectively respond challenges is critical for survival. We investigated how an acute stressor affected corticosterone, mitochondrial function, and DNA oxidative damage in a wild population Leach's storm‐petrels ( Hydrobates leucorhous) . conducted standardized 20‐min handling procedure on storm‐petrel chicks collected baseline post‐handling blood samples. measured plasma corticosterone red cell levels through the detection mutated base 8‐Hydroxy‐2'‐deoxyguanosine (8‐OHdG). In addition, we quantified six measures aerobic metabolism from cells. Overall, increased decreased efficiency produce ATP. Although increase was inversely related change damage, decrease positively correlated with damage. Thus, over stress response, individuals who had largest also least amount prioritized ATP production during showed higher This work highlights complex pathways by which affect stress, providing new insights into trade‐offs underlying physiological responses animals.

Language: Английский

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