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PloS One 2019Socially competent animals must learn to modify their behavior in response to their social partner in a contextually appropriate manner. Dominant-subordinate...
Socially competent animals must learn to modify their behavior in response to their social partner in a contextually appropriate manner. Dominant-subordinate relationships are a particularly salient social context for mice. Here we observe and analyze the microstructure of social and non-social behaviors as 21 pairs of outbred CD-1 male mice (Mus Musculus) establish dominant-subordinate relationships during daily 20-minute interactions for five consecutive days in a neutral environment. Firstly, using a Kleinberg burst detection algorithm, we demonstrate aggressive and subordinate interactions occur in bursting patterns followed by quiescent periods rather than being uniformly distributed across social interactions. Secondly, we identify three phases of dominant-subordinate relationship development (pre-, middle-, and post-resolution) by utilizing two statistical methods to identify stability in aggressive and subordinate behavior across these bursts. Thirdly, using First Order Markov Chains we find that dominant and subordinate mice show distinct behavioral transitions, especially between tail rattling and other aggressive/subordinate behaviors. Further, dominant animals engaged in more digging and allogrooming behavior and were more likely to transition from sniffing their partner's body to head, whereas subordinates were more likely to transition from head sniffing to side-by-side contact. Lastly, we utilized a novel method (Forward Spike Time Tiling Coefficient) to assess how individuals respond to the behaviors of their partner. We found that subordinates decrease their tail rattling and aggressive behavior in response to aggressive but not subordinate behavior exhibited by dominants and that tail rattling in particular may function to deescalate aggressive behavior in pairs. Our findings demonstrate that CD-1 male mice rapidly establish dominance relationships and modify their social and non-social behaviors according to their current social status. The methods that we detail also provide useful tools for other researchers wishing to evaluate the temporal dynamics of rodent social behavior.
Topics: Animals; Dominance-Subordination; Female; Male; Markov Chains; Mice; Sexual Behavior, Animal; Social Behavior; Social Environment
PubMed: 31821344
DOI: 10.1371/journal.pone.0220596 -
Developmental Psychology Feb 2024Children and even infants have clear intuitions about power early in development; they can infer who is dominant and subordinate from observing a single interaction....
Children and even infants have clear intuitions about power early in development; they can infer who is dominant and subordinate from observing a single interaction. However, it is unclear what children infer about each individual's status from these interactions-do they think dominants and subordinates will maintain their status when interacting with novel partners? In three experiments, we investigate this question. Children (4- to 10-year-olds, = 365) heard stories about a dominant and subordinate agent and predicted the dominant or subordinate agent's behavior with a novel agent. In all studies, we found that 7- to 10-year-olds generalized dominance, thinking the dominant would again be dominant or "in charge," both for social power (e.g., granting permission) in Study 1 and physical dominance (e.g., a fistfight) in Studies 2 and 3. Furthermore, although they believed dominant agents would win dominance contests (fistfights), they did not believe they would win contests unrelated to dominance (math contests). Younger children did not generalize social power (Study 1) but did generalize physical dominance (Studies 2 and 3). However, even for physical dominance, their generalizations were less selective (i.e., they believed the dominant would win fistfights and math contests). Notably, neither age group generalized an agent's submissiveness in any of the studies-they did not believe a subordinate agent would again be subordinate when paired with a novel partner. We discuss how these results extend past work on children's developing intuitions about dominance and prompt deeper questions about the inferences children draw from dominance interactions. (PsycInfo Database Record (c) 2024 APA, all rights reserved).
PubMed: 38421786
DOI: 10.1037/dev0001696 -
Nature Communications May 2021The Triassic (252-201 Ma) marks a major punctuation in Earth history, when ecosystems rebuilt themselves following the devastating Permian-Triassic mass extinction....
The Triassic (252-201 Ma) marks a major punctuation in Earth history, when ecosystems rebuilt themselves following the devastating Permian-Triassic mass extinction. Herbivory evolved independently several times as ecosystems comprising diverse assemblages of therapsids, parareptiles and archosauromorphs rose and fell, leading to a world dominated by dinosaurs. It was assumed that dinosaurs prevailed either through long-term competitive replacement of the incumbent clades or rapidly and opportunistically following one or more extinction events. Here we use functional morphology and ecology to explore herbivore morphospace through the Triassic and Early Jurassic. We identify five main herbivore guilds (ingestion generalists, prehension specialists, durophagous specialists, shearing pulpers, and heavy oral processors), and find that herbivore clades generally avoided competition by almost exclusively occupying different guilds. Major ecosystem remodelling was triggered multiple times by external environmental challenges, and previously dominant herbivores were marginalised by newly emerging forms. Dinosaur dominance was a mix of opportunity following disaster, combined with competitive advantage in their new world.
Topics: Animals; Biodiversity; Biological Evolution; Cluster Analysis; Diet; Dinosaurs; Ecosystem; Extinction, Biological; Food Chain; Fossils; Herbivory; History, Ancient; Phylogeny
PubMed: 33990610
DOI: 10.1038/s41467-021-23169-x -
Scientific Reports Sep 2023The Bay of Bengal, the world's largest bay, is bordered by populous countries and rich in resources like fisheries, oil, gas, and minerals, while also hosting diverse...
The Bay of Bengal, the world's largest bay, is bordered by populous countries and rich in resources like fisheries, oil, gas, and minerals, while also hosting diverse marine ecosystems such as coral reefs, mangroves, and seagrass beds; regrettably, its microbial diversity and ecological significance have received limited research attention. Here, we present amplicon (16S and 18S) profiling and shotgun metagenomics data regarding microbial communities from BoB's eastern coast, viz., Saint Martin and Cox's Bazar, Bangladesh. From the 16S barcoding data, Proteobacteria appeared to be the dominant phylum in both locations, with Alteromonas, Methylophaga, Anaerospora, Marivita, and Vibrio dominating in Cox's Bazar and Pseudoalteromonas, Nautella, Marinomonas, Vibrio, and Alteromonas dominating the Saint Martin site. From the 18S barcoding data, Ochrophyta, Chlorophyta, and Protalveolata appeared among the most abundant eukaryotic divisions in both locations, with significantly higher abundance of Choanoflagellida, Florideophycidae, and Dinoflagellata in Cox's Bazar. The shotgun sequencing data reveals that in both locations, Alteromonas is the most prevalent bacterial genus, closely paralleling the dominance observed in the metabarcoding data, with Methylophaga in Cox's Bazar and Vibrio in Saint Martin. Functional annotations revealed that the microbial communities in these samples harbor genes for biofilm formation, quorum sensing, xenobiotics degradation, antimicrobial resistance, and a variety of other processes. Together, these results provide the first molecular insight into the functional and phylogenetic diversity of microbes along the BoB coast of Bangladesh. This baseline understanding of microbial community structure and functional potential will be critical for assessing impacts of climate change, pollution, and other anthropogenic disturbances on this ecologically and economically vital bay.
Topics: Bays; Phylogeny; Microbiota; Alteromonas; Dinoflagellida
PubMed: 37749192
DOI: 10.1038/s41598-023-43306-4 -
Personality and Individual Differences Jun 2021This study used reversal theory to examine motivational predictors of well-being and coping during the COVID-19 pandemic in 2020. 149 UK based respondents completed an...
This study used reversal theory to examine motivational predictors of well-being and coping during the COVID-19 pandemic in 2020. 149 UK based respondents completed an online survey including measures of demographics, well-being, coping, motivational style, and dominance. Well-being was predicted by optimism (positively), autic and mastery (negatively) dominances, by alloic sympathy, optimism and paratelic motivation styles (positively), and, negatively by arousal seeking, arousability and pessimism. Coping was positively predicted by optimism and negativism dominances and by negativist, paratelic and telic motivations, and, negatively by arousability and pessimism. Using motivational dominances, indirect support was identified for the link between psychodiversity and well-being, but not coping. Findings suggest that well-being and, to a lesser degree, coping could be enhanced by encouraging individuals to experience a range of motivations, possibly focusing on those identified here as significant predictors. Future research needs to determine the context specificity of these findings and explore psychodiversity, well-being and coping using both metamotivational states and composite profiles incorporating the full range of motivational constructs.
PubMed: 33531726
DOI: 10.1016/j.paid.2021.110703 -
Pharmacology, Biochemistry, and Behavior Apr 2022Social subordination increases risk for psychiatric disorders, while dominance increases resilience to these disorders. Fluoxetine, a selective serotonin (5HT) reuptake...
Social subordination increases risk for psychiatric disorders, while dominance increases resilience to these disorders. Fluoxetine, a selective serotonin (5HT) reuptake inhibitor whose actions are mediated in part by the 5HT1A receptor (5HT1AR), has sex- and social status-specific effects on socioemotional behavior and aggressive behavior. However, the impact of social status on these sex-specific effects remains unclear. The current study evaluated the impact of acute fluoxetine treatment and social status on dominance-related behaviors in female and male hamsters, and the impact of chronic fluoxetine treatment on socioemotional behavior and 5HT1AR binding potential (5HT1AR) in female rhesus macaques. We hypothesized that sex differences in the effects of fluoxetine on aggression in hamsters would be diminished in dominant and enhanced in subordinate males and that aggression in female hamsters would be enhanced in dominants and diminished in subordinates. In female rhesus macaques, we hypothesized that chronic fluoxetine would alter socioemotional behaviors and site-specific 5HT1AR in a status-dependent manner. Male (n = 46) and female (n = 56) hamsters were paired with conspecifics for three days to establish social rank. Hamsters received a single dose of 20 mg/kg fluoxetine or vehicle two-hours prior to a test with a non-aggressive intruder. Female rhesus monkeys (n = 14) housed were administered fluoxetine (2.8 mg/kg/day) or vehicle injections chronically for 14-days, separated by a three-week washout period. On Day 15, positron emission tomography neuroimaging for 5HT1AR was conducted. Fluoxetine treatment decreased aggression in subordinate female monkeys and subordinate female hamsters but not in dominant females of either species. Fluoxetine decreased aggression in dominant but not in subordinate male hamsters. Fluoxetine also reduced and increased prefrontal 5HT1AR in dominant and subordinate females, respectively. Taken together, these results provide cross-species evidence that social status and sex impact how increased 5HT modulates agonistic behavior.
Topics: Aggression; Animals; Cricetinae; Female; Fluoxetine; Humans; Macaca mulatta; Male; Mesocricetus; Social Status
PubMed: 35219757
DOI: 10.1016/j.pbb.2022.173362 -
Nursing & Health Sciences Sep 2020Understanding the occupational typological nature of nursing and paramedicine and the typological preferences of these within the professions offers significant evidence... (Review)
Review
Understanding the occupational typological nature of nursing and paramedicine and the typological preferences of these within the professions offers significant evidence of factors that can facilitate wellbeing and efficiencies. Arksey and O'Malley's five-stage scoping methodology was used to review the literature. The research question used to guide this scoping review was: Which Holland code is more dominant among nurses and paramedics? Nine articles were included in this review, from which two broad themes emerged: Job satisfaction/academic success; and personality-employment fit across gender and subgroups within the same occupation. While the Social (S) personality type dominated across the studies for both nurses and paramedics, overall, the studies identified various combinations of the personality profile and, in some cases, personality types foreign to the occupation also formed part of the Holland code. Congruence can be thought of as playing an important role in nurses'/paramedics' overall well-being regardless of the order of their three dominant personality types.
Topics: Allied Health Personnel; Career Choice; Humans; Nurses; Occupations; Quality of Life
PubMed: 32115803
DOI: 10.1111/nhs.12699 -
Chemosphere Sep 2023Microbial consortia HY3 and JY3 with high degradation efficiency of 2-Diethylamino-4-hydroxy-6-methylpyrimidine (DHMP) were isolated from aerobic and parthenogenic ponds...
Microbial consortia HY3 and JY3 with high degradation efficiency of 2-Diethylamino-4-hydroxy-6-methylpyrimidine (DHMP) were isolated from aerobic and parthenogenic ponds of DHMP-containing pharmaceutical wastewater, respectively. Both consortia were enriched and reached stable degradation performance with a DHMP concentration of 1500 mg L. The DHMP degradation efficiencies of HY3 and JY3 were 95.66% ± 0.24% and 92.16% ± 2.34% under the condition of shaking at 180 r·min and the temperature of 30 °C for 72 h. And the removal efficiencies of chemical oxygen demand were 89.14% ± 4.78% and 80.30% ± 11.74%, respectively. High-throughput sequencing results indicated that three bacterial phyla of Proteobacteria, Bacteroidetes, and Actinobacteria were dominant in both HY3 and JY3, but their dominances varied. At the genus level, the richness of Unclassified Comamonadaceae (34.23%), Paracoccus (14.75%), and Brevundimonas (13.94%) ranked top three in HY3 whereas Unclassified Comamonadaceae (40.80%), Unclassified Burkholderiales (13.81%) and Delftia (13.11%) were dominant in JY3. The metabolites of DHMP degradation by HY3 and JY3 were analyzed in detail. Two pathways for cleavage of the nitrogenous heterocyclic ring were speculated, one of which was identified for the first time in this study.
Topics: Wastewater; Microbial Consortia; Bacteria; Heterocyclic Compounds; Pharmaceutical Preparations; Bioreactors
PubMed: 37217008
DOI: 10.1016/j.chemosphere.2023.139000 -
Psychiatria Polska Jun 2022To assess attachment styles among adolescents (13-16 years) with ADHD or ADHD and oppositional defiant disorders (ODD).
OBJECTIVES
To assess attachment styles among adolescents (13-16 years) with ADHD or ADHD and oppositional defiant disorders (ODD).
METHODS
The Parents and Peers Attachment (IPPA) and the Parent Bonding Questionnaire (PBI) were used in three groups of teenagers raised in biological families: (1) ADHD/ODD group (n = 40), (2) ADHD group (n = 40) and (3) K (control) group of teenagers (n = 40) who have not benefited from psychological or psychiatric care in the past or at present.
RESULTS
Parental attachment styles in the area of "Trust", "Communication" and "Alienation" (IPPA), and "Care" and "Control" (PBI) in the ADHD/ODD group differ significantly compared to the control group. Teens from the ADHD/ODD group report to have experienced significantly less "Trust" and "Communication" (IPPA), and "Care" (PBI) in relationships with parents and more "Alienation" (IPPA) and "Control" (PBI) than adolescents in the ADHD group. Attachment patterns with peers in both clinical and control groups differ significantly. The ADHD/ODD group is dominated by the anxious-avoidant style of attachment to the mother and father, in the ADHD group, a secure style in relation to the mother and anxious-avoidant in relation to the father. In relations with peers in the ADHD/ODD group and the ADHD group, the anxious-avoidant style dominates.
CONCLUSIONS
The attachment style is significantly different in adolescents diagnosed with ADHD and ODD than in adolescents with only ADHD. In the ADHD/ODD group and the ADHD group, unlike in the group of adolescents without a psychiatric diagnosis, insecure attachment styles for parents and peers dominate (mainly anxious-avoidant style).
Topics: Adolescent; Humans; Attention Deficit Disorder with Hyperactivity; Attention Deficit and Disruptive Behavior Disorders; Parents
PubMed: 36342984
DOI: 10.12740/PP/OnlineFirst/130366 -
AoB PLANTS Oct 2023may be considered the tree of the Mediterranean Basin, dominating coastal forest areas up to 2000 m above sea level at some sites. However, an increase in holm oak... (Review)
Review
may be considered the tree of the Mediterranean Basin, dominating coastal forest areas up to 2000 m above sea level at some sites. However, an increase in holm oak decline has been observed in the last decade. In this review, we analysed the current literature to answer the following questions: what are the traits that allow holm oak to thrive in the Mediterranean environment, and what are the main factors that are currently weakening this species? In this framework, we attempt to answer these questions by proposing a triangle as a graphical summary. The first vertex focuses on the main morpho-anatomical, biochemical and physiological traits that allow holm oak to dominate Mediterranean forests. The other two vertices consider abiotic and biotic stressors that are closely related to holm oak decline. Here, we discuss the current evidence of holm oak responses to abiotic and biotic stresses and propose a possible solution to its decline through adequate forest management choices, thus allowing the species to maintain its ecological domain.
PubMed: 37899973
DOI: 10.1093/aobpla/plad051