An analysis of the dynamics of resource sharing networks in ant colonies

Cooperation ties animals together into social groups that often demonstrate complex emergent behaviours. One striking example of this are social insect societies that emerge from extreme cooperative behaviour and have an important impact in many ecosystems. Colonies of most social insects construct and inhabit a single nest. However, colonies of some species have been found to spread across many different nests – known as polydomy. This strategy is thought to have evolved in response to several different drivers, such as increased foraging efficiency, avoiding nest-size limitations and territory defence. In this thesis, I present studies that investigated how polydomous colonies function and the reasons that some, but not all, ant species use polydomy as a strategy. I used a mathematical model to demonstrate that decentralization of the nest population can be advantageous under a variety of different conditions, which explains why polydomous species are so behaviourally and phylogenetically diverse. Using a longitudinal study of several years of data on a set of polydomous colonies I found that resource sharing networks become more static over a season and that while nest foundation occurs throughout the season, nest abandonment occurs at a much faster rate in the latter part of the season. Through sampling several polydomous colonies, I found that there is a correlation between relatedness of the inhabitants of different nests and the rate of resource sharing between the nests. The most likely mechanism for this is that nests that share resources become more closely related due to migration and brood transfer. Finally, using a resource manipulation study, I found that resource-sharing networks can adapt in response to change in the availability of food. Together these results demonstrate how ant colonies can use polydomy to their advantage and the various factors that are important in determining the dynamics of these complex societies

Perceptions of knowledge sharing among small family firm leaders: a structural equation model

Small family firms have many unique relational qualities with implications for how knowledge is passed between individuals. Extant literature posits leadership approach as important in explaining differences in knowledge-sharing climate from one firm to another. This study investigates how leadership approaches interact with family influence to inform perceptions of knowledge sharing. We utilize survey data (n = 110) from owner-managers of knowledge-intensive small family firms in Scotland. Our findings present a choice in leadership intention, contrasting organization-focused participation against family-influenced guidance. Insight is offered on the implications of this leadership choice at both organizational and familial level

Work Organisation and Innovation in Ireland

[Excerpt] Innovations in work organisation have the potential to optimise production processes in companies and improve employees’ overall experience of work. This report explores the links between innovations in work organisation – under the broader label of high performance work practices (HPWPs) – and the potential benefits for both employees and organisations. It draws on empirical evidence from three case studies carried out in the Republic of Ireland, where workplace innovations have resulted in positive outcomes and where social partners played a significant role in their design and development

Work Organisation and Innovation

[Excerpt] Innovations in work organisation have the potential to optimise production processes in companies and improve employees’ overall experience of work. This report explores the links between innovations in work organisation – under the broader label of high performance work practices (HPWPs) – and the potential benefits for both employees and organisations. It draws on empirical evidence from case studies carried out in 13 Member States of the European Union where workplace innovations have resulted in positive outcomes

Quand mobiliser et proximité riment : le rôle déterminant du supérieur immédiat

Cet article examine l’influence de la perception de certaines pratiques de gestion des ressources humaines sur les comportements de mobilisation des employés, au travers de deux processus d’échange sociaux distincts, employé-organisation et employé-supérieur. Les comportements de mobilisation étaient évalués par les supérieurs et toutes les autres variables par les employés. Les analyses ont été réalisées sur un échantillon de 222 employés et 38 supérieurs de commerces au détail d’une chaîne canadienne. Nous avons établi les relations à l’aide de la méthode d’équations structurelles avec LISREL. Les résultats mettent en relief le rôle fondamental de la relation d’échange social entre les employés et leur supérieur, à travers la perception de support et de l’engagement affectif orientés vers ce dernier.This article presents the results of a study highlighting the role of perceived support and affective commitment in the relationship between the perception of three human resource management practices and two types of employee mobilization behaviours, as assessed by their supervisor. This study sought to explore the relationship between skills development practices, non-monetary recognition and information sharing, on the one hand, and mobilization behaviours in two categories or “areas” of performance, that is, behaviours related to work contract compliance and those related to high job performance, on the other. The concept of mobilization behaviours and its background will be presented in detail. This concept is part of a broader model, that of mobilizing human resources, which will also be presented.In light of research advances in this field, we measured two agents of support and commitment, that is, the supervisor and the organization .We chose management practices which are used in a discretionary manner by the organization but especially by supervisors. Indeed, deliberate intervention on the part of the supervisor increases the influence of these practices on the level of support perceived by employees. The social exchange and norm of reciprocity theories were used to explain the relationships between the different variables in our model. The social exchange theory helps to explain an employee’s decision as to whether or not to contribute to the well-being of the organization in response to the exchange relationships that he or she has experienced at work. Based on the postulate of reciprocity, it is understood that employees tend to show affective commitment to the organization and the supervisor, insofar as they also perceive that the latter are committed to them. More specifically, through positive initiatives such as the implementation of human resource management practices, the organization and the supervisor foster perceived support by getting across the symbolic message to employees that they are valued and taken into consideration. In response to this perceived support, employees develop affective commitment, that is, an emotional attachment to the organization and the supervisor. It is therefore postulated that employees who perceive support from the organization and the supervisor, through the implementation of discretionary human resource practices, will feel a moral obligation to repay these benefits, by demonstrating affective commitment and adopting mobilization behaviours. In this regard, it is recognized that mobilization is above all fostered by significant reciprocity relationships which are maintained through moral and social debts. We thus studied two social exchange relationships, that between the employee and the organization, and that between the employee and the supervisor. We also hypothesize that an employee’s commitment to the supervisor will lead him or her to display a greater number of mobilization behaviours related to work contract compliance, as these behaviours are likely to be particularly beneficial to the supervisor on a day-to-day basis.In order to eliminate common variance problems, we measured the employees’ mobilization behaviours (related to work contract compliance and high job performance) through a supervisor questionnaire, and the explanatory variables through an employee questionnaire. Analyses were carried out on a sample of 222 employees and 38 supervisors in a Canadian retail chain. Relationships were determined using structural equation modelling with LISREL. We also established the discriminant validity of the constructs by comparing various measurement models using LISREL. Lastly, alternative models were developed in order to assess the mediating effects of support from and commitment to the organization and the supervisor.Our results show that a favourable perception of skills development, non-monetary recognition and information sharing was positively linked to the perception of organizational support. Of these three practices, only information sharing was not associated with the perception of organizational support through the perception of support from the supervisor. Skills development and non-monetary recognition, on the other hand, positively influenced the perception of support from the supervisor which, in turn, reinforced the perception of organizational support. The relationships between the perception of organizational support, affective organizational commitment and high job performance behaviours, as assessed, were significant, as were the relationships between the perception of support from the supervisor, affective commitment to the supervisor and behaviours related to work contract compliance and high job performance, as assessed. Lastly, the link between affective commitment to the supervisor and behaviours related to work contract compliance, as assessed, was stronger than that between affective organizational commitment and these same behaviours, as assessed. Comparing alternative models to the structural model proposed made it possible to gather evidence regarding the mediating role of affective organizational commitment and affective commitment to the supervisor in the relationship between the perception of organizational support, the perception of support from the supervisor and mobilization behaviours.We set out to assess the explanatory power of perceived support and affective commitment involved in the relationship between employees, their supervisor and the organization. Our conclusions indicate that the relationship between employees and their supervisor in the retail trade industry is significant and should be taken into consideration by organizations that wish to foster the mobilization of employees through various human resource practices. Thus, we discovered that in response to the quality of their relationship with their supervisor, employees adopt a wide range of mobilization behaviours.Este artículo examina la influencia de la percepción de ciertas prácticas de gestión de recursos humanos sobre los comportamientos de movilización de los empleados, a través de dos distintos procesos sociales de intercambio, empleado – organización y empleado – superior. Los comportamientos de movilización fueron evaluados por los superiores y todas las otras variables fueron evaluados por los empleados. Los análisis se efectuaron sobre una muestra de 222 empleados y 38 superiores de comercios de detalle de una compañía canadiense. Las relaciones se establecieron con la ayuda del método de ecuaciones estructurales con LISREL. Los resultados resaltan el rol fundamental de la relación de intercambio social entre empleados y sus respetivos superiores, mediante la percepción de apoyo y de compromiso afectivo

Do employee-owned firms produce more positive employee behavioural outcomes? If not why not? A British-Spanish comparative analysis

Whether ‘employee ownership’ takes the form of worker cooperatives, co-ownership or simply employee share ownership plans, there are normally high expectations that a range of positive outcomes will result. Yet many empirically-based studies tend to find a much more complex picture. An influential segment of that empirical literature has posited the need for a number of mutually-reinforcing workforce management components to be in place alongside co-ownership. Drawing on detailed case research in two large and successful co-owned retailers in Spain and Britain this paper examines the role of these wider elements supporting employee ownership. We find that employee ownership can be linked to higher productivity and lower employee turnover, while at the same time being linked to higher absenteeism and mixed effects on attitudes. Expectations held by managers and employees are higher; these expectations are not always fully met. The role of managers was also found to be crucial

Investigating the information-seeking behaviour of academic lawyers: From Ellis's model to design.

Information-seeking is important for lawyers, who have access to many dedicated electronic resources.However there is considerable scope for improving the design of these resources to better support information-seeking. One way of informing design is to use information-seeking models as theoretical lenses to analyse users’ behaviour with existing systems. However many models, including those informed by studying lawyers, analyse information-seeking at a high level of abstraction and are only likely to lead to broad-scoped design insights. We illustrate that one potentially useful (and lowerlevel) model is Ellis’s - by using it as a lens to analyse and make design suggestions based on the information-seeking behaviour of twenty-seven academic lawyers, who were asked to think aloud whilst using electronic legal resources to find information for their work. We identify similar information-seeking behaviours to those originally found by Ellis and his colleagues in scientific domains, along with several that were not identified in previous studies such as ‘updating’ (which we believe is particularly pertinent to legal information-seeking). We also present a refinement of Ellis’s model based on the identification of several levels that the behaviours were found to operate at and the identification of sets of mutually exclusive subtypes of behaviours

A systems approach to evaluate One Health initiatives

Challenges calling for integrated approaches to health, such as the One Health (OH) approach, typically arise from the intertwined spheres of humans, animals, and ecosystems constituting their environment. Initiatives addressing such wicked problems commonly consist of complex structures and dynamics. As a result of the EU COST Action (TD 1404) “Network for Evaluation of One Health” (NEOH), we propose an evaluation framework anchored in systems theory to address the intrinsic complexity of OH initiatives and regard them as subsystems of the context within which they operate. Typically, they intend to influence a system with a view to improve human, animal, and environmental health. The NEOH evaluation framework consists of four overarching elements, namely: (1) the definition of the initiative and its context, (2) the description of the theory of change with an assessment of expected and unexpected outcomes, (3) the process evaluation of operational and supporting infrastructures (the “OH-ness”), and (4) an assessment of the association(s) between the process evaluation and the outcomes produced. It relies on a mixed methods approach by combining a descriptive and qualitative assessment with a semi-quantitative scoring for the evaluation of the degree and structural balance of “OH-ness” (summarised in an OH-index and OH-ratio, respectively) and conventional metrics for different outcomes in a multi-criteria-decision-analysis. Here, we focus on the methodology for Elements (1) and (3) including ready-to-use Microsoft Excel spreadsheets for the assessment of the “OH-ness”. We also provide an overview of Element (2), and refer to the NEOH handbook for further details, also regarding Element (4) (http://neoh.onehealthglobal.net). The presented approach helps researchers, practitioners, and evaluators to conceptualise and conduct evaluations of integrated approaches to health and facilitates comparison and learning across different OH activities thereby facilitating decisions on resource allocation. The application of the framework has been described in eight case studies in the same Frontiers research topic and provides first data on OH-index and OH-ratio, which is an important step towards their validation and the creation of a dataset for future benchmarking, and to demonstrate under which circumstances OH initiatives provide added value compared to disciplinary or conventional health initiatives