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https://www.readbyqxmd.com/read/27615188/-symmetry-is-beauty-or-is-it-the-rise-and-fall-of-fluctuating-asymmetry
#1
Vincent Debat
Fluctuating asymmetry is the stochastic, minor deviation from perfect symmetry in bilaterally symmetrical organisms. It reflects the limit of developmental precision. Such a precision can be influenced by various factors, both internal (genetic mutations, stochastic variation at every levels of development) and external (environmental influences). Fluctuating asymmetry has receive an extreme attention for the past few decades, that culminated in the 90s: it has been used as an estimator of heterozygosity, fitness, environmental stress, and widely applied to human biology, sociobiology and psychology before being more or less discredited in the early 2000s...
August 2016: Médecine Sciences: M/S
https://www.readbyqxmd.com/read/27473334/clinical-sociobiological-and-cognitive-predictors-of-adhd-persistence-in-children-followed-prospectively-over-time
#2
Tara McAuley, Jennifer Crosbie, Alice Charach, Russell Schachar
With increasing awareness that ADHD is chronically disabling, a burgeoning literature has examined childhood clinical indicators of ADHD persistence. This study investigates whether childhood factors reflecting biological risk and cognitive reserve have additive predictive value for the persistence of ADHD that is unique beyond childhood indicators of disorder severity. One-hundred thirty children with ADHD (mean age = 8.9 years, 75 % male) were followed into adolescence (mean age = 14.0 years). Childhood ADHD and co-morbidities were assessed via interviews with parents and teachers; parental psychopathology was assessed via parent interview; exposure to neurobiological and psychosocial adversity were indexed by parent questionnaire; and cognitive reserve was evaluated through children's performance on measures of IQ and executive functioning...
July 29, 2016: Journal of Abnormal Child Psychology
https://www.readbyqxmd.com/read/27402554/untangling-the-neurobiology-of-coping-styles-in-rodents-towards-neural-mechanisms-underlying-individual-differences-in-disease-susceptibility
#3
Sietse F de Boer, Bauke Buwalda, Jaap M Koolhaas
Considerable individual differences exist in trait-like patterns of behavioral and physiological responses to salient environmental challenges. This individual variation in stress coping styles has an important functional role in terms of health and fitness. Hence, understanding the neural embedding of coping style variation is fundamental for biobehavioral neurosciences in probing individual disease susceptibility. This review outlines individual differences in trait-aggressiveness as an adaptive component of the natural sociobiology of rats and mice, and highlights that these reflect the general style of coping that varies from proactive (aggressive) to reactive (docile)...
July 8, 2016: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/27243919/what-is-a-personality-disorder
#4
Theodore Millon
The goal of this article is to describe, characterize, and differentiate personality disorders by connecting their conceptual features to their foundations in the natural sciences. What is proposed is akin to Freud's abandoned Project for a Scientific Psychology and Wilson's (1975) highly controversial Sociobiology. Both were worthy endeavors to advance our understanding of the styles and traits of human nature; this was to be done by exploring interconnections among the diverse disciplines of nature that evolved ostensibly unrelated bodies of research and manifestly dissimilar languages...
June 2016: Journal of Personality Disorders
https://www.readbyqxmd.com/read/27007808/infectious-disease-and-grouping-patterns-in-mule-deer
#5
María Fernanda Mejía Salazar, Cheryl Waldner, Joseph Stookey, Trent K Bollinger
Infectious disease dynamics are determined, to a great extent, by the social structure of the host. We evaluated sociality, or the tendency to form groups, in Rocky Mountain mule deer (Odocoileus hemionus hemionus) from a chronic wasting disease (CWD) endemic area in Saskatchewan, Canada, to better understand factors that may affect disease transmission. Using group size data collected on 365 radio-collared mule deer (2008-2013), we built a generalized linear mixed model (GLMM) to evaluate whether factors such as CWD status, season, habitat and time of day, predicted group occurrence...
2016: PloS One
https://www.readbyqxmd.com/read/26917034/a-sociobiological-origin-of-pregnancy-failure-in-domestic-dogs
#6
Luděk Bartoš, Jitka Bartošová, Helena Chaloupková, Adam Dušek, Lenka Hradecká, Ivona Svobodová
Among domestic dog breeders it is common practice to transfer a domestic dog bitch out of her home environment for mating, bringing her back after the mating. If the home environment contains a male, who is not the father of the foetuses, there is a potential risk of future infanticide. We collected 621 records on mating of 249 healthy bitches of 11 breed-types. The highest proportion of successful pregnancies following mating occurred in bitches mated within their home pack and remaining there. Bitches mated elsewhere and then returned to a home containing at least one male had substantially lower incidence of maintained pregnancy in comparison with bitches mated by a home male...
2016: Scientific Reports
https://www.readbyqxmd.com/read/26822336/consequences-of-a-male-takeover-on-mating-skew-in-wild-sanje-mangabeys
#7
David Fernández
Among primate species living in multimale-multifemale groups, the number of receptive females may determine the rank of the lowest male that copulates (priority of access model, or PoA [Altmann SA. 1962. A field study of the sociobiology of rhesus monkeys, Macaca mulatta. Annals of the New York Academy of Sciences 102:338-435]). Factors, such as temporary instability in the hierarchy and female behavior can, however, affect high-ranking males' ability to monopolize females, reducing mating skew and causing the hierarchy to depart from predictions of PoA...
January 28, 2016: American Journal of Primatology
https://www.readbyqxmd.com/read/26540575/chronotypes-in-patients-with-nonseasonal-depressive-disorder-distribution-stability-and-association-with-clinical-variables
#8
Matthias Johannes Müller, Nicole Cabanel, Christiane Olschinski, Dorothee Jochim, Bernd Kundermann
The individual's chronotype is regarded as rather stable trait with substantial heritability and normal distribution of the "morningness-eveningness" dimension in the general population. Eveningness has been related to the risk of developing affective, particularly depressive, disorders. However, age and other sociobiological factors may influence chronotypes. The present study investigated the distribution, stability, and clinical correlates of chronotype and morningness-eveningness in hospitalized patients with affective disorder...
2015: Chronobiology International
https://www.readbyqxmd.com/read/26530161/-morals-can-not-be-drawn-from-facts-but-guidance-may-be-the-early-life-of-w-d-hamilton-s-theory-of-inclusive-fitness
#9
Sarah A Swenson
W.D. Hamilton's theory of inclusive fitness saw the evolution of altruism from the point of view of the gene. It was at heart a theory of limits, redefining altruistic behaviours as ultimately selfish. This theory inspired two controversial texts published almost in tandem, E.O. Wilson's Sociobiology: The New Synthesis (1975) and Richard Dawkins's The Selfish Gene (1976). When Wilson and Dawkins were attacked for their evolutionary interpretations of human societies, they claimed a distinction between reporting what is and declaring what ought to be...
December 2015: British Journal for the History of Science
https://www.readbyqxmd.com/read/26027380/-oxygen-dependent-energy-deficit-as-related-to-the-problems-of-ontogenetic-development-disorders-and-human-sociobiological-adaptation-theoretical-and-applied-aspects
#10
REVIEW
V A Ilyukhina, G V Kataeva, A D Korotkov, E M Chernysheva
The review states and argues theoretical propositions on the pathogenetic role of pre- and perinatal hypoxic-ischemic brain damage in the formation of sustained oxygen-dependent energy deficit underlying in further ontogenesis the following neurobiological abnormalities: a) a decline in the level of health and compensatory-adaptive capacities of the organism, b) disorders of the psycho-speech development and adaptive behavior in children, c) early development of neuropsychic diseases, g) addition of other types of brain energy metabolism (including glucose metabolism) disorders in chronic polyetiologic diseases young and middle-aged individuals...
March 2015: Zhurnal Evoliutsionnoĭ Biokhimii i Fiziologii
https://www.readbyqxmd.com/read/25823704/lessons-from-collaborative-governance-and-sociobiology-theories-for-reinforcing-sustained-cooperation-a-government-food-security-case-study
#11
L A Montoya, I Montoya, O D Sánchez González
OBJECTIVES: This research aimed to understand how cooperation and collaboration work in interagency arrangements using a case study of the public management of food security and nutrition in Bogotá, Colombia. STUDY DESIGN: This study explored the available scientific literature on Collaborative Governance within the Public Management body of knowledge and the literature on Cooperation from the Sociobiology field. Then, proposals were developed for testing on the ground through an action-research effort that was documented as a case study...
July 2015: Public Health
https://www.readbyqxmd.com/read/25747575/the-relationship-between-social-anxiety-and-the-perception-of-depth-ambiguous-biological-motion-stimuli-is-mediated-by-inhibitory-ability
#12
Adam Heenan, Nikolaus F Troje
Orthographically projected biological motion stimuli are depth-ambiguous. Consequently, their projection when oriented towards the viewer is the same as when oriented away. Despite this, observers tend to interpret such stimuli as facing the viewer more often. Some have speculated that this facing-the-viewer bias may exist for sociobiological reasons: Mistaking another human as retreating when they are actually approaching could have more severe consequences than the opposite error. An implication of this theory is that the facing-towards percept may be perceived as more threatening than the facing-away percept...
May 2015: Acta Psychologica
https://www.readbyqxmd.com/read/25687548/understanding-societies-from-inside-the-organisms-leo-pardi-s-work-on-social-dominance-in-polistes-wasps-1937-1952
#13
Guido Caniglia
Leo Pardi (1915-1990) was the initiator of ethological research in Italy. During more than 50 years of active scientific career, he gave groundbreaking contributions to the understanding of social life in insects, especially in Polistes wasps, an important model organism in sociobiology. In the 1940s, Pardi showed that Polistes societies are organized in a linear social hierarchy that relies on reproductive dominance and on the physiological and developmental mechanisms that regulate it, i.e. on the status of ovarian development of single wasps...
August 2015: Journal of the History of Biology
https://www.readbyqxmd.com/read/25641051/neuropeptidomics-of-the-carpenter-ant-camponotus-floridanus
#14
Franziska Schmitt, Jens T Vanselow, Andreas Schlosser, Jörg Kahnt, Wolfgang Rössler, Christian Wegener
Ants show a rich behavioral repertoire and a highly complex organization, which have been attracting behavioral and sociobiological researchers for a long time. The neuronal underpinnings of ant behavior and social organization are, however, much less understood. Neuropeptides are key signals that orchestrate animal behavior and physiology, and it is thus feasible to assume that they play an important role also for the social constitution of ants. Despite the availability of different ant genomes and in silico prediction of ant neuropeptides, a comprehensive biochemical survey of the neuropeptidergic communication possibilities of ants is missing...
March 6, 2015: Journal of Proteome Research
https://www.readbyqxmd.com/read/25547876/colony-size-is-linked-to-paternity-frequency-and-paternity-skew-in-yellowjacket-wasps-and-hornets
#15
Kevin J Loope, Chun Chien, Michael Juhl
BACKGROUND: The puzzle of the selective benefits of multiple mating and multiple paternity in social insects has been a major focus of research in evolutionary biology. We examine paternity in a clade of social insects, the vespine wasps (the yellowjackets and hornets), which contains species with high multiple paternity as well as species with single paternity. This group is particularly useful for comparative analyses given the wide interspecific variation in paternity traits despite similar sociobiology and ecology of the species in the genera Vespula, Dolichovespula and Vespa...
2014: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/25530660/worker-senescence-and-the-sociobiology-of-aging-in-ants
#16
Ysabel Milton Giraldo, James F A Traniello
Senescence, the decline in physiological and behavioral function with increasing age, has been the focus of significant theoretical and empirical research in a broad array of animal taxa. Preeminent among invertebrate social models of aging are ants, a diverse and ecologically dominant clade of eusocial insects characterized by reproductive and sterile phenotypes. In this review, we critically examine selection for worker lifespan in ants and discuss the relationship between functional senescence, longevity, task performance, and colony fitness...
December 2014: Behavioral Ecology and Sociobiology
https://www.readbyqxmd.com/read/25524987/the-colony-environment-modulates-sleep-in-honey-bee-workers
#17
Ada Eban-Rothschild, Guy Bloch
One of the most important and evolutionarily conserved roles of sleep is the processing and consolidation of information acquired during wakefulness. In both insects and mammals, environmental and social stimuli can modify sleep physiology and behavior, yet relatively little is known about the specifics of the wake experiences and their relative contribution to experience-dependent modulation of sleep. Honey bees provide an excellent model system in this regard because their behavioral repertoire is well characterized and the environment they experience during the day can be manipulated while keeping an ecologically and sociobiologically relevant context...
February 1, 2015: Journal of Experimental Biology
https://www.readbyqxmd.com/read/25392401/electrical-spiking-in-bacterial-biofilms
#18
Elisa Masi, Marzena Ciszak, Luisa Santopolo, Arcangela Frascella, Luciana Giovannetti, Emmanuela Marchi, Carlo Viti, Stefano Mancuso
In nature, biofilms are the most common form of bacterial growth. In biofilms, bacteria display coordinated behaviour to perform specific functions. Here, we investigated electrical signalling as a possible driver in biofilm sociobiology. Using a multi-electrode array system that enables high spatio-temporal resolution, we studied the electrical activity in two biofilm-forming strains and one non-biofilm-forming strain. The action potential rates monitored during biofilm-forming bacterial growth exhibited a one-peak maximum with a long tail, corresponding to the highest biofilm development...
January 6, 2015: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/25320175/ecological-variation-in-wealth-fertility-relationships-in-mongolia-the-central-theoretical-problem-of-sociobiology-not-a-problem-after-all
#19
Alexandra Alvergne, Virpi Lummaa
The negative wealth-fertility relationship brought about by market integration remains a puzzle to classic evolutionary models. Evolutionary ecologists have argued that this phenomenon results from both stronger trade-offs between reproductive and socioeconomic success in the highest social classes and the comparison of groups rather than individuals. Indeed, studies in contemporary low fertility settings have typically used aggregated samples that may mask positive wealth-fertility relationships. Furthermore, while much evidence attests to trade-offs between reproductive and socioeconomic success, few studies have explicitly tested the idea that such constraints are intensified by market integration...
December 7, 2014: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/25277227/the-river-and-the-sea-fieldwork-in-human-ecology-and-ethnobiology
#20
REVIEW
Alpina Begossi
This article is a commentary on the experiences that motivated my decision to become a human ecologist and ethnobiologist. These experiences include the pleasure of studying and of having the sense of being within nature, as well as the curiosity towards understanding the world and minds of local people. In particular, such understanding could be driven by addressing the challenging questions that originate in the interactions of such individuals with their natural surroundings. I have been particularly interested in the sea and the riverine forests that are inhabited by coastal or riverine small-scale fishers...
2014: Journal of Ethnobiology and Ethnomedicine
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