Solitary Behavior Research Articles

First nesting site record of the bee species Diadasina paraensis (Ducke, 1912) (Hymenoptera, Apidae, Emphorini)

It present the first record of the nesting site of the bee species Diadasina paraensis (Ducke, 1912) found in the Amazon region of the Brazilian state of Para. The nesting site comprises a dense aggregation of 198 nests constructed on flat and bare ground, in soft and humid compact sandy soil near the bank of the Paranaquara river. Each nest entrance has a typical vertical tumulus with a circular opening slightly curved in shape. Males were found patrolling the area and just one female was observed per nest, indicating the solitary behavior of the species.

Verification of the peculiarities of the Anthophoridae Family (Insecta: Hymenoptera)

Solitary behavior is characterized by the independence of females in building and provisioning their nests. There is no cooperation, or division of labor, between females of the same generation, or between mother and daughters. Most of the time, the mother dies before her offspring emerges, with no intergenerational relationships. There is a great diversity of nesting habits among solitary bees. Several species of the Megachilidae, Anthophoridae, and Apidae families nest in hollow branches of plants or pre-existing holes in wood. Others nest in cavities on the ground or in ravines or in protected places and few build exposed nests. The objective of this manuscript is to know the peculiarities of the Anthophoridae Family. The study proposed here constitutes bibliographical research in national and international publications that address the Anthophoridae (Insecta: Hymenoptera: Apoidea) in the field of Entomology. The bibliographical research was carried out using the descriptors Hymenoptera, wasps, and bees in the virtual library in Entomology and in the digital library of theses and dissertations of Universidade de São Paulo (BDTD). Concerned with drawing a public profile of quality research in the area, we sought, a literature review in the main journals in the area classified by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES). In order to complement this analysis with other types of documents such as books, scientific journals, and documents.

Neotropical bee microbiomes point to a fragmented social core and strong species-level effects

BackgroundIndividuals that band together create new ecological opportunities for microorganisms. In vertical transmission, theory predicts a conserved microbiota within lineages, especially social bees. Bees exhibit solitary to social behavior among and/or within species, while life cycles can be annual or perennial. Bee nests may be used over generations or only once, and foraging ecology varies widely. To assess which traits are associated with bee microbiomes, we analyzed microbial diversity within solitary and social bees of Apidae, Colletidae, and Halictidae, three bee families in Panama’s tropical forests. Our analysis considered the microbiome of adult gut contents replicated through time, localities, and seasons (wet and dry) and included bee morphology and comparison to abdominal (dissected) microbiota. Diversity and distribution of tropical bee microbes (TBM) within the corbiculate bee clade were emphasized.ResultsWe found the eusocial corbiculate bees tended to possess a more conserved gut microbiome, attributable to vertical transmission, but microbial composition varied among closely related species. Euglossine bees (or orchid bees), corbiculates with mainly solitary behavior, had more variable gut microbiomes. Their shorter-tongued and highly seasonal species displayed greater diversity, attributable to flower-visiting habits. Surprisingly, many stingless bees, the oldest corbiculate clade, lacked bacterial genera thought to predate eusociality, while several facultatively social, and solitary bee species possessed those bacterial taxa. Indeed, nearly all bee species displayed a range of affinities for single or multiple variants of the “socially associated” bacterial taxa, which unexpectedly demonstrated high sequence variation.ConclusionsTaken together, these results call into question whether specific bacterial associates facilitate eusocial behavior, or are subsequently adopted, or indicate frequent horizontal transmission between perennial eusocial colonies and other social, facultatively social, and solitary bees.7ptKwZS8umiRRciGf9GNsXVideo

Comparison of behaviorally inhibited and typically developing children's play behaviors in the preschool classroom.

Behavioral inhibition (BI) is a temperamental trait characterized by a bias to respond with patterns of fearful or anxious behavior when faced with unfamiliar situations, objects, or people. It has been suggested that children who are inhibited may experience early peer difficulties. However, researchers have yet to systematically compare BI versus typically developing children's observed asocial and social behavior in familiar, naturalistic settings. We compared the in-school behaviors of 130 (M = 54 months, 52% female) highly inhibited preschoolers (identified using the parent-reported Behavioral Inhibition Questionnaire) to 145 (M = 53 months, 52% female) typically developing preschoolers. Both samples were observed on at least two different days for approximately 60 min. Observers used the Play Observation Scale to code children's behavior in 10-s blocks during free play. Teachers completed two measures of children's behavior in the classroom. Regression models with robust standard errors controlling for child sex, age, and weekly hours in school revealed that preschoolers identified as BI engaged in significantly more observed reticent and solitary behavior, and less social play and teacher interaction than the typically developing sample. Children with BI also initiated social interaction with their peers and teachers less often than their counterparts who were not inhibited. Teachers reported that children identified as BI were more asocial and less prosocial than their non-BI counterparts. Significantly, the findings indicated that inhibited children displayed more solitude in the context of familiar peers. Previous observational studies have indicated behavioral differences between BI and unfamiliar typical age-mates in novel laboratory settings. Children identified as BI did not receive fewer bids for social interaction than their typically developing peers, thereby suggesting that children who are inhibited have difficulty capitalizing on opportunities to engage in social interaction with familiar peers. These findings highlight the need for early intervention for children with BI to promote social engagement, given that the frequent expression of solitude in preschool has predicted such negative outcomes as peer rejection, negative self-regard, and anxiety during the elementary and middle school years.

Automatic Individual Identification of Patterned Solitary Species Based on Unlabeled Video Data

The manual processing and analysis of videos from camera traps is time-consuming and includes several steps, ranging from the filtering of falsely triggered footage to identifying and re-identifying individuals. In this study, we developed a pipeline to automatically analyze videos from camera traps to identify individuals without requiring manual interaction. This pipeline applies to animal species with uniquely identifiable fur patterns and solitary behavior, such as leopards (Panthera pardus). We assumed that the same individual was seen throughout one triggered video sequence. With this assumption, multiple images could be assigned to an individual for the initial database filling without pre-labeling. The pipeline was based on well-established components from computer vision and deep learning, particularly convolutional neural networks (CNNs) and scale-invariant feature transform (SIFT) features. We augmented this basis by implementing additional components to substitute otherwise required human interactions. Based on the similarity between frames from the video material, clusters were formed that represented individuals bypassing the open set problem of the unknown total population. The pipeline was tested on a dataset of leopard videos collected by the Pan African Programme: The Cultured Chimpanzee (PanAf) and achieved a success rate of over 83% for correct matches between previously unknown individuals. The proposed pipeline can become a valuable tool for future conservation projects based on camera trap data, reducing the work of manual analysis for individual identification, when labeled data is unavailable.

Hemp Morphology and Physiology Standards for Research and Industry Applications

Hemp (Cannabis sativa L.) research and commercial production has recently experienced a global revival motivated by passage of laws reversing long-standing prohibitions and by expansion in markets. Collaborative research has been initiated in response to renewed interest in hemp production, such as the American Society for Horticultural Science Hemp Research and Extension Professional Interest Group (ASHS Hemp). Collaborators new to this crop have identified a lack of standard definitions, descriptions, and procedures for cohesive study specific to hemp production. Standards are necessary for synthesis of data gathered across research and industry programs. ASHS Hemp convened a workshop of hemp researchers and industry representatives to establish consensus on a minimum set of standards for research data and industry assessments. The resulting morphology and physiology standards developed at the workshop are presented here with a focus on plant height, flowering time, and crop quality. Plant height was defined as the vertical distance between the root crown at the soil surface and the stem node (or tip) of the apical meristem of the tallest branch. Plant height was importantly distinguished from stem length and canopy height, which may differ based on pruning and management of the plant. Flowering time was defined to indicate date of initiation of inflorescence development as the earliest day terminal flowering clusters appear visually. Flowering time was distinguished from solitary flowering behavior and floral maturity. Crop quality was determined to be a feature that should be established first by industry based on market standards and then subsequently adopted by researchers targeting outcomes in specific areas. A standard moisture content for dry flower, seed, and straw must be established. A moisture content of 10% to 12% was identified as a current standard for floral yield, whereas 8% was identified as a moisture content standard for seed crops. Bast-to-hurd ratio and decortication efficiency were fiber quality metrics identified for minimum standards, and thousand seed weight, protein content, oil content, and oil composition were considered for minimum seed quality standards. The hemp research community is well positioned to standardize genomic references and establish best management practices for production targets. These efforts would be assisted by the adoption of the proposed standard definitions, descriptions, and procedures decided by consensus at the ASHS Hemp 2022 workshop.

Young children's social withdrawal and teacher–child relationship quality: A cross‐cultural comparison between the Netherlands and China

AbstractThe present study investigated how young children's (5‐to‐8‐year‐olds) social inhibition and solitary behavior were associated with teacher–child relationship quality and whether these associations differed across the Netherlands and China. The Dutch sample included 35 teachers and 201 children (49% girls). The Chinese sample consisted of 19 teachers and 152 children (50% girls). Teachers rated children's social inhibition and solitary behavior, and their relationship (closeness, conflict) with each child. Multilevel linear modeling revealed that in both countries, social inhibition was associated negatively with closeness and solitary behavior was associated positively with conflict. These associations were equally strong in China and the Netherlands. One association differed across countries: Social inhibition was associated negatively with conflict in the Netherlands, whereas this association was not significant in China. As such, cultural values could affect how social inhibition links to teacher–child relationships. Caution is recommended when generalizing findings from one country to another country.

Characteristics of New Stochastic Solitonic Solutions for the Chiral Type of Nonlinear Schrödinger Equation

The Wiener process was used to explore the (2 + 1)-dimensional chiral nonlinear Schrödinger equation (CNLSE). This model outlines the energy characteristics of quantum physics’ fractional Hall effect edge states. The sine-Gordon expansion technique (SGET) was implemented to extract stochastic solutions for the CNLSE through multiplicative noise effects. This method accurately described a variety of solitary behaviors, including bright solitons, dark periodic envelopes, solitonic forms, and dissipative and dissipative–soliton-like waves, showing how the solutions changed as the values of the studied system’s physical parameters were changed. The stochastic parameter was shown to affect the damping, growth, and conversion effects on the bright (dark) envelope and shock-forced oscillatory wave energy, amplitudes, and frequencies. In addition, the intensity of noise resulted in enormous periodic envelope stochastic structures and shock-forced oscillatory behaviors. The proposed technique is applicable to various energy equations in the nonlinear applied sciences.

Theory of Mind and Young Children's Behaviour: Aggressive, Victimised, Prosocial, and Solitary.

Theory of mind (ToM) undergoes significant developments during childhood, particularly between the ages of four and seven years. A growing body of research has indicated that children's social understanding may be related to their social behaviour with peers, in line with Theory Theory which proposes that children's social cognition is influenced by and influences their peer interactions. The current study examined the relationship between ToM and behaviour among 193 children aged 4-7 years. Children carried out a battery of ToM tasks, and teaching staff reported on children's aggressive, prosocial, and solitary behaviour and victimisation experiences. Aggression was not directly related to ToM; prosocial behaviour was positively associated with ToM for girls but not boys. Solitary behaviour and victimisation were negatively related to ToM. When this was broken down by gender, there was only a significant association between solitary behaviour and ToM for boys. When controlling for the relationship between behaviours, the only significant predictor of ToM was solitary behaviour for boys. ToM was also a significant predictor of solitary behaviour for boys, demonstrating that there is a bidirectional relationship at play. The findings highlight the importance of looking across these four behaviour types and understanding the relationship between behaviour profiles and ToM for boys and girls separately.

Compulsive Sexual Behavior and Changes in Solitary Sexual Behaviors During the COVID-19 Pandemic.

The aim of with this brief report is to examine how the COVID-19 pandemic differentially impacted solitary sexual behaviors in those with and without clinically significant compulsive sexual behavior (CSB). A total of 944 individuals in the United States completed an online cross-sectional survey in October 2020. Participants were asked to retrospectively report their frequency of masturbation and pornography use during the pandemic and prior to the pandemic. Participants also completed assessments of CSB, depression symptoms, and experiences of financial stress caused by the pandemic. Individuals who screened positive for clinically significant CSB reported statistically significant increases in masturbation and pornography use during the pandemic. Those who screened negative for CSB reported no significant increase in masturbation and a very small, statistically significant increase in pornography use. Those screening positive for CSB also reported significantly higher levels of depression symptoms but did not report increased likelihood of experiencing financial distress due to the pandemic. This suggests that increases in masturbation and pornography use reported by some, but not all, recent studies on sexual behaviors during the COVID-19 pandemic may be driven by individuals with CSB. Future research on sexual behaviors during the pandemic should assess CSB to further clarify its relationship with sexual behavior changes.

Solitary-specific drinking to cope motives explain unique variance in solitary drinking behavior but not alcohol problems compared to general drinking to cope motives.

Adolescent and young adult solitary drinking is prospectively associated with alcohol problems, and it is thus important to understand why individuals engage in this risky drinking behavior. There is substantial evidence that individuals drink alone to cope with negative affect, but all prior studies have assessed motives for alcohol use without specifying the context of such use. Here, we directly compared solitary-specific drinking to cope motives with general drinking to cope motives in their ability to predict solitary drinking behavior and alcohol problems. We hypothesized that solitary-specific drinking motives would provide additional predictive utility in each case. Current underage drinkers (N = 307; 90% female; ages 18-20) recruited from a TurkPrime panel March-May 2016 completed online surveys querying solitary alcohol use, general and solitary-specific coping motives, and alcohol problems. Both solitary-specific and general coping motives were positively associated with a greater percentage of total drinking time spent alone in separate models, after controlling for solitary-specific and general enhancement motives, respectively. However, the model with solitary-specific motives accounted for greater variance than the general motives model based on adjusted R2 values (0.8 versus 0.3, respectively). Additionally, both general and solitary-specific coping motives were positively associated with alcohol problems, again controlling for enhancement motives, but the model including general motives accounted for greater variance (0.49) than the solitary-specific motives model (0.40). These findings provide evidence that solitary-specific coping motives explain unique variance in solitary drinking behavior but not alcohol problems. The methodological and clinical implications of these findings are discussed.

Investigation of exact soliton solutions of nematicons in liquid crystals according to nonlinearity conditions

In this work, new traveling wave solutions are generated for the system that models nematicons in liquid crystals using the [Formula: see text]-expansion method. In the equation system, nonlinearity is taken into account for Kerr law and Power law. Also, the existence of exact solutions under restriction conditions is guaranteed. We suggest that the solutions produced are of a different type than the solutions in the literature. Figures representing the intensity of the produced traveling wave solutions are presented. In addition, the simulation of the solitary wave is made for different values of the parameter that affects the inclination angle of the molecules in the nematicons mechanism in liquid crystals. How classical solitary wave behavior translates into triangular wave behavior is discussed. We believe this paper will provide an important perspective on the problems encountered in various application areas such as fluid dynamics, chemical engineering, chaos and complex networks in terms of investigating different mechanisms by taking into account nonlinearity factors.

Attitudes toward sexual behaviors: relationship with gender and sexual orientation

Most studies that have compared sexual attitudes between men and women have focused on heterosexual individuals or have not controlled for sexual orientation. In addition, many have used measures of general sexual attitudes, which have more difficulty in predicting sexual behaviors and sexual health than measures of attitudes toward specific sexual behaviors. Therefore, the present study aimed to analyze whether gender and sexual orientation are related to attitudes toward specific sexual behaviors in Spain. The study sample consisted of 1725 participants (55.8% women) aged between 18 and 35 years and of different sexual orientations. All participants completed an instrument to measure attitudes toward specific contextualized sexual behaviors. After controlling for age and current relationship status, the results reveal that while women have more positive attitudes toward solitary sexual behaviors and erotic material than men, men have more positive attitudes toward unconventional and online sexual behaviors than women. Bisexual people have more positive attitudes toward frequent dyadic sexual behaviors with casual partners than homosexual people. Finally, bisexual and homosexual people have more positive attitudes towards solitary sexual behaviors and erotic material, unconventional sexual behaviors, and online sexual behaviors than heterosexuals. It is concluded that gender and sexual orientation are related to attitudes toward different types of sexual behaviors.

COVID-19 Pandemic and Its Impact on the Quality of Women's Sexual Life: A Systematic Review.

The COVID-19 pandemic has had far-reaching effects, including onphysical and mental health and wellbeing. The aim of this study was to investigate the effect of the COVID-19 pandemic on women's health, especially on women's sexual life includingdesire, arousal, orgasm and satisfaction. The initial research in PubMed/Medline, Google Scholar and Scopus yielded 573 articles from Europe (Portugal, Poland, Italy, Greece), America (U.S, Brazil) and Africa (Egypt), of which 14 met the inclusion criteria and were included in the review. Results from the studies suggest that the pandemic negatively affected sexual functioning and satisfaction, while it increased sexual distress, sexual avoidance and solitary sexual approach behaviors. The desire to have children decreased during the pandemic, but so didthe use of contraception. There is conflicting evidence as to whether or not the pandemic has had an impact on sexual desire and frequency among women. However, some major factors associated with sexual life were psychological factors and working status. It is well documented that the pandemic has had a great psychological impact. Therefore, both of these factors are expected to significantly affect women's sexual life.

Solitary wave behavior of (2+1)-dimensional Chaffee-Infante equation.

The behavior of gas diffusion in a homogeneous medium is described by the (2+1)-dimensional Chaffee-Infante equation. In this work, the solitary wave behavior of the (2+1)-dimensional Chaffee-Infante equation is studied with the help of extended sinh-Gordon equation expansion technique. Bright, dark, periodic, kink, anti-kink and singular traveling wave patterns are observed for suitable choice of parameters. The 3D graphs, 2D plots and contour plots are included to understand the dynamics of the obtained solutions. The obtained results depict that the extended sinh-Gordon equation expansion technique provides an efficient tool for solving other equations that occur in different branches of science and technology.

The influence of social exclusion on adolescents' social withdrawal behavior: The moderating role of connectedness to nature

If individuals do not have good peer social relationships, they will not only fail to benefit from social groups, but will have more solitary behaviors due to being excluded and rejected. And the withdrawal of choosing to be alone will induce further social exclusion. However, previous studies on social exclusion and social withdrawal have focused on children, college students, and adults, and few studies have explored adolescents as subjects. There is evidence that problematic peer relationship experiences (e.g., rejection, exclusion) are indeed a cause and consequence of social withdrawal in adolescents, and fortunately, interventions that connect people to nature may lead to many positive changes in multiple domains of functioning, such as indirect exposure to the natural environment can moderate the negative effects of an individual's exclusion. Therefore, to test the causal relationship between social exclusion and adolescent social withdrawal behavior and the effect of natural associations on adolescent social withdrawal behavior, we found through three studies that social exclusion significantly affected adolescent social withdrawal behavior, connectedness of nature, i.e., simply viewing nature pictures, significantly diminishes the effect of social exclusion on adolescents' social withdrawal behavior. Taken together, these findings underscore the importance of natural associations in influencing social withdrawal after exclusion.

NEW SOLITARY WAVE SOLUTIONS FOR THE FRACTIONAL JAULENT–MIODEK HIERARCHY MODEL

The main goal of this paper is to study the new solitary wave behaviors of the fractional Jaulent–Miodek hierarchy model (FJMHE) with M-truncated fractional derivative. First, we use the fractional sech-function method (FSFM) to obtain some new solitary wave solutions of the fractional Jaulent–Miodek hierarchy equation. The new method is simple and effective, which provides a more powerful mathematical technique for exploring solitary wave solutions of the fractional evolution equations in mathematical physics. Finally, some 3D and 2D graphs are employed to illustrate the physical properties of the obtained new solitary wave solutions.

Solitary and Collective Motion Behaviors of TiO2 Microrobots under the Coupling of Multiple Light Fields.

Due to their fascinating solitary and collective behavior, photochemical microrobots have attracted extensive attention from researchers and have obtained a series of outstanding research progress in recent years. However, due to the limitation of using a single light source, the realization of reconfigurable and controllable motion behaviors of the photochemical microrobot is still facing a series of challenges. To release these restrictions, we reported a multi-light-field-coupling-based method for driving the photochemical microrobot or its swarm in a regulatable manner. Here, we first designed a control system for coupling multiple light sources to realize the programmable application of four light sources in different directions. Then a TiO2-based photochemical microrobot was prepared, with its surface electric field distribution under different lighting conditions estimated by modeling-based simulation, where the feasibility of regulating the microrobot's motion behavior via the proposed setup was verified. Furthermore, our experimental results show that under the action of the compound light fields, we can not only robustly control the motion behavior of a single TiO2 microrobot but also reconfigure its collective behaviors. For example, we realized the free switching of the single TiO2 microrobots' movement direction, and the controllable diffusion, aggregation, the locomotion and merging of TiO2 microrobot swarms. Our discovery would provide potential means to realize the leap-forward control and application of photochemical microrobots from individuals to swarms, as well as the creation of active materials and intelligent synthetic systems.

Solitary and semisocial behaviour in the Corynura group: new findings in a clade sister to all other Augochlorini bees (Hymenoptera: Halictidae)

ABSTRACT The great diversity of social organisation present in the tribe Augochlorini makes these bees prime candidates from which to study the evolution of social behaviour. The Corynura group, sister to all other augochlorines, is comprised by three southern South American genera: Callistochlora, Corynura and Halictillus. The nest architecture and social behaviour of Ca. aureoviridis, Co. ampliata, Co. bruchiana, Co. nahuelita, H. amplilobus and H. reticulatus were studied in Argentina. Conclusive evidence of solitary and semisocial behaviour were found in a group where only communal behaviour had been confirmed. Two species presented socially polymorphic populations. Previous studies are reviewed and all data analysed considering species’ flying periods. The possibility of eusocial behaviour is briefly discussed considering environmental factors. Since some of the species visit crops, these results are useful to develop techniques to manage native bees for pollination.

Does a pandemic context attenuate people's negative perception and meta-perception of solitude?

Solitude-the state of being alone without social interactions-is a common experience in everyday life. Despite that spending time alone can be enjoyable and functional, solitude is often stigmatised: People who engage in solitary activities are perceived negatively (negative perceptions of solitude) and anticipate a negative judgement from others (negative meta-perceptions of solitude). Using the COVID-19 pandemic as a backdrop, we examined whether a pandemic context, in which solitary behaviours were easily attributable to external reasons, would reduce people's negative perceptions and meta-perceptions of solitude. Across three preregistered experiments (total N= 767) conducted during the first wave of the COVID-19 pandemic, we found that the presence (vs. absence) of a pandemic context attenuated both the negative meta-perceptions and the negative perceptions of solitude. Yet, people believed that the pandemic context produced a stronger shift away from the stigmatisation of solitude than it actually did. These findings revealed the limits of contextual cues in mitigating the negative perceptions of being alone-even when these cues were explicit and readily available. The current research sheds light on the potential challenges of destigmatising solitude.