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240 results for “social interaction”

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zenodo36/100

Dataset Questionnaire Driving Repeat Purchases and E-WOM: How Price, Reputation, Hedonic Appeal, and Social Interaction Shape Consumer Behavior in Indonesia's E-Commerce Smartphone Market

The following dataset is a dataset from a study that investigated price advantage, reputation, hedonic effort, and social interaction influence customer satisfaction, which in turn impacts repurchase intention and e-WOM (electronic word-of-mouth).

opencc-by-4.0Nov 2024View details →

dryad36/100

Within-generation and transgenerational social plasticity interact during rapid adaptive evolution

The effects of within-generation plasticity versus transgenerational plasticity on trait expression are poorly understood, but important for evaluating plasticity's evolutionary consequences. We tested how genetics, within-generation plasticity, and transgenerational plasticity jointly shape traits influencing rapid evolution in the field cricket Teleogryllus oceanicus. In Hawaiian populations attacked by acoustically-orienting parasitoid flies, a protective, X-linked variant ("flatwing") eliminates male acoustic sexual signals. Silent males rapidly spread to fixation, dramatically changing the acoustic environment. First, we found evidence supporting flatwing-associated pleiotropy in juveniles: pure-breeding flatwing males and females exhibit greater locomotion than those with normal-wing genotypes. Second, within-generation plasticity caused homozygous-flatwing females developing in silence, which mimics all-flatwing populations, to attain lower adult body condition and reproductive investment than those experimentally exposed to song. Third, maternal song exposure caused transgenerational plasticity in offspring, affecting adult, but not juvenile, size, condition, and reproductive investment. This contrasted with behavioral traits, which were only influenced by within-generation plasticity. Fourth, we matched and mismatched maternal and offspring social environments and found that transgenerational plasticity sometimes interacted with within-generation plasticity and sometimes opposed it. Our findings stress the importance of evaluating the plasticity of different traits and stages across generations when evaluating their fitness consequences and role in adaptation.

opencc-zeroNov 2022View details →

zenodo36/100

Replication package for: DEMAND AND WELFARE ANALYSIS IN DISCRETE CHOICE MODELS WITH SOCIAL INTERACTIONS

This replication package includes the dataset and stata code needed to produce the empirical results in the paper.

opencc-by-4.0Dec 2022View details →

dryad36/100

Impacts of fungal disease on dyadic social interactions in a wild agamid lizard

Emerging infectious fungal diseases are responsible for the extinction of myriad species across a range of phyla. As recently shown by the COVID-19 pandemic, social transmission can be key to disease spread, and in this context, humans are not alone in trying to be alone. In group-living species, individuals have been shown to use social behaviour to avoid infection; diseased individuals can isolate from the group, or healthy animals can avoid diseased conspecifics. However, to date, little is known about social behaviour as a mechanism to avoid fungal infection. In this study, we investigate the extent to which wild urban eastern water dragons (Intellagama lesueurii), a gregarious reptile, modify their social behaviour as a response to infection with a recently emerged infectious fungal disease, caused by the pathogen Nannizziopsis barbatae. Using individual data from a long-term study population inhabiting Roma Street Parkland in Brisbane's Central Business District (QLD, Australia) and focal sampling, we test whether dragons exhibit self-isolation and social distancing behaviours in the context of dyadic social approach events. Statistical analyses of data collected from 633 observations of 123 unique individuals (78 non-diseased, 45 diseased) during 2020 – 2021 suggested that while the presence of the fungal disease had no effect on individuals' social behaviour, the severity of the fungal disease did significantly affect individuals' social behaviour. Specifically, we found that (i) diseased individuals were no less social than their non-diseased conspecifics, (ii) non-diseased individuals did not avoid or spend less time with diseased conspecifics, and (iii) models considering the severity of skin lesions caused by Nannizziopsis barbatae, instead of their presence or absence, suggested that individuals avoided more severely diseased conspecifics regardless of their own disease status. These findings warrant further investigation, given the evidence that many species have displayed behavioural adaptations to disease, and the increasing risk posed by emerging infectious fungal diseases.

opencc-zeroMay 2023View details →

dryad36/100

Reductions in home-range size and social interactions among dehorned black rhinoceroses (Diceros bicornis)

<div> Poaching for horns and tusks is driving declines of megaherbivores worldwide, including the critically endangered African black rhinoceros (Diceros bicornis). By proactively dehorning entire rhinoceros populations, conservationists aim to deter poaching and prevent species loss. However, such conservation interventions may have hidden and underestimated effects on animals' behavior and ecology. Here, we combine >15 y of black rhino–monitoring data across 10 South African game reserves, comprising >24,000 sightings of 368 individuals, to determine the consequences of dehorning for black rhino space use and social interactions. While preventative dehorning at these reserves coincided with a nationwide decrease in black rhino mortality from poaching and did not infer increased natural mortality, dehorned black rhinos decreased their home range area by, on average, 11.7 km2 (45.5%) and were 37% less likely to engage in social encounters. We conclude that dehorning black rhinos as an antipoaching measure alters their behavioral ecology, although the potential population-level effects of these changes remain to be determined. </div>

opencc-zeroJun 2023View details →

zenodo36/100

Social interactions differ in their impact on foraging decisions

Data and code for the manuscript: Social interactions differ in their impact on foraging decisions

opencc-by-4.0Jul 2023View details →

dryad36/100

Data for: Social environment and masculinization level interact to explain male testosterone levels in a social rodent

In vertebrates, male testosterone levels vary across the year and are generally higher during the mating period relative to the offspring-rearing period. However, male testosterone levels may also be influenced by male morphotype (males with different levels of masculinization), and by the social environment experienced within a conspecific group. In social species, it has been proposed that high levels of testosterone could be incompatible with the development of an amicable social environment. Thus, in these species, it is predicted that males have relatively low levels of testosterone. Our goal was to examine the potential association between male serum testosterone levels, male morphotype, and the social environment in the caviomorph rodent Octodon degus under natural conditions. We quantified serum testosterone levels of male degus during the periods of mating and offspring rearing, and the size and composition of social groups, including masculinization levels of male and female group members from 2009 to 2019. Our results revealed that male testosterone levels covary with the period, male morphotype, and female and male social group environments, but not with offspring social environment (total number of offspring in the social group). Additionally, male degus exhibit low levels of testosterone that are indistinguishable from female levels during mating and offspring rearing. Similar to other highly social mammals, male amicable behavior could be the best male mating strategy, implying a downregulation of males' testosterone levels.

opencc-zeroSep 2023View details →

zenodo36/100

20230822-IKEM: Intrinsic exploration motivation (individual / social and direct / indirect curiosity, creativity and non-exploration), that influences which object and, if the agent is social, partner(s) are chosen for the interaction, is introduced.

This archive contains the results of a multi-agent simulation experiment [1] carried out with Lazy lavender [2] environment. Experiment Label: 20230822-IKEM Experiment design: Agents interact by playing games with objects and adapt their ontologies to agree on decision taking. Intrinsic exploration motivation (individual / social and direct / indirect curiosity, creativity and non-exploration), that influences which object and, if the agent is social, partner(s) are chosen for the interaction, is introduced. Experiment setting: Agents learn decision trees (transformed into ontologies); choose the objects (and partners) to interact with; adapt by splitting their leaf nodes Hypotheses: 1) Agents will be able to fulfil their motivation in terms of increased exploration (exploratory motivations) and decreased exploration (non-exploratory motivation). 2) Agents with exploratory motivation will be more complete, but less accurate than the baseline and non-exploration. 3) Curious agents will be more accurate and complete, but converge slower in comparison with creativity. 4) In more complex settings (higher number of agents and properties), exploration leads to more completeness, accuracy, distance and faster convergence than the baseline. 5) Agents with non-exploratory motivation will be less accurate and complete than the baseline. 6) The indirect learning models have a higher accuracy and completeness than the direct models. 7) Agents with socially oriented intrinsic motivation will have less diverse knowledge, but agree more and converge faster than agents with individual intrinsic motivation. 8) Heterogeneously motivated agents will have a higher accuracy and completeness, but lower diversity and converge slower than homogeneously motivated agents. Detailed information can be found in index.html or notebook.ipynb. [1] <a href="\">https://sake.re/20230822-IKEM</a> [2] <a href="\">https://gitlab.inria.fr/moex/lazylav/</a>

opencc-by-4.0Sep 2023View details →

dryad36/100

Male social environment and female masculinization level interact to explain female testosterone levels in a communally rearing rodent

Testosterone is known to modulate several morphological and behavioral phenotypic traits in males. However, females also synthetize testosterone and other androgens which influence the development and function of female tissues. In vertebrates, mating and social interactions can in turn modulate individual female testosterone levels, generally being higher in females that compete for males and/or that monopolize reproduction. Female testosterone levels may also be higher in females with masculinized phenotypes or when females are exposed to the energetic demands of reproduction. We used data from a long-term study (2009–2019) in a natural population of the communally rearing rodent Octodon degus to examine the potential associations between female serum testosterone levels and season, female masculinization morphotype, and the individual composition within social groups. We quantified the size and composition of social groups, including the masculinization morphotype of adult male and female group members. We found that female testosterone levels were higher in masculinized vs. feminized females and were also higher during the offspring-rearing season than the mating season. Female testosterone levels also varied with the number and morphotype of male group members, but not with female or offspring social environments. Together, our results suggest that female testosterone levels are more sensitive to intersexual than to intrasexual interactions. Our results also reveal that female and male testosterone levels do not significantly differ between the sexes, a notable finding previously reported only in rock hyraxes. We discuss how the complex social system of degus could be driving this physiological similarity between the sexes.

opencc-zeroOct 2023View details →

zenodo36/100

Dynamic social interactions and keystone species shape the diversity and stability of mixed-species biofilms – an example from dairy isolates - Dataset

We previously reported a bacterial four-species biofilm model comprising Stenotrophomonas rhizophila (SR), Bacillus licheniformis (BL), Microbacterium lacticum (ML), and Calidifontibacter indicus (CI) that were isolated from the surface of a dairy pasteuriser after cleaning and disinfection. These bacteria produced 3.13-fold more biofilm mass compared to the sum of biofilm masses in monoculture (<a href="https://doi.org/10.3389/fmicb.2023.1159434">https://doi.org/10.3389/fmicb.2023.1159434</a>). In a subsequent experiment we confirmed that the observed community synergy resulted from dynamic social interactions among various species pairs, encompassing commensalism, exploitation, and amensalism. M. lacticum appeared to be the keystone species as it increased the growth of all other species that led to the synergy in biofilm mass. Interactions among the other three species (in the absence of M. lacticum) also contributed towards the synergy in biofilm mass. Bacterial cell-free-supernatants were also investigated to assess the nature of the observed synergy. The first four sheets of the Excel file contain raw cell count data for the four species (SR, BL, ML, and CI), recorded every 4 h over a 24 h period on the surface of stainless steel (SS) in the presence of brain-heart-infusion (BHI) medium and skim-milk (SM). Data related to individual bacterial cell counts in various mixed-species biofilms are also presented. These biofilms were developed on SS in BHI for h.  Data related to bacterial biofilm masses in different mixed-species biofilm combinations are also presented, showcasing the effect of replacing one strain with its CFS. Species written in red indicate that their CFS was used, not their viable form.

opencc-by-4.0Oct 2023View details →

ClinicalTrials.gov36/100

InTSHA: Interactive Transition Support for HIV-infected Adolescents Using Social Media

ClinicalTrials.gov study NCT03624413. IPD Sharing: YES. Countries: 1. Publications: 1.

controlledIPD-YESFeb 2026View details →

ClinicalTrials.gov36/100

Impact of Intensive Social Interaction on Post-Stroke Depression in Individuals With Aphasia

ClinicalTrials.gov study NCT04318951. IPD Sharing: NO. Countries: 1. Publications: 8.

closedIPD-NOFeb 2026View details →

dryad36/100