96 research outputs found

    The physiology of movement

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    Movement, from foraging to migration, is known to be under the influence of the environment. The translation of environmental cues to individual movement decision making is determined by an individual's internal state and anticipated to balance costs and benefits. General body condition, metabolic and hormonal physiology mechanistically underpin this internal state. These physiological determinants are tightly, and often genetically linked with each other and hence central to a mechanistic understanding of movement. We here synthesise the available evidence of the physiological drivers and signatures of movement and review (1) how physiological state as measured in its most coarse way by body condition correlates with movement decisions during foraging, migration and dispersal, (2) how hormonal changes underlie changes in these movement strategies and (3) how these can be linked to molecular pathways. We reveale that a high body condition facilitates the efficiency of routine foraging, dispersal and migration. Dispersal decision making is, however, in some cases stimulated by a decreased individual condition. Many of the biotic and abiotic stressors that induce movement initiate a physiological cascade in vertebrates through the production of stress hormones. Movement is therefore associated with hormone levels in vertebrates but also insects, often in interaction with factors related to body or social condition. The underlying molecular and physiological mechanisms are currently studied in few model species, and show -in congruence with our insights on the role of body condition- a central role of energy metabolism during glycolysis, and the coupling with timing processes during migration. Molecular insights into the physiological basis of movement remain, however, highly refractory. We finalise this review with a critical reflection on the importance of these physiological feedbacks for a better mechanistic understanding of movement and its effects on ecological dynamics at all levels of biological organization

    The curse of employee privilege: harnessing virtual reality technology to inhibit workplace envy

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    In many workplaces, managers provide some employees with unique privileges that support their professional development and stimulate productivity and creativity. Yet with some employees more deserving of a privileged status than others, co-workers feeling left out of the inner circle may begin to exhibit feelings of envy. With workplace envy and intergroup conflicts going hand in hand, the question arises whether co-worker acceptance of employee privileges—where conflict can be constrained through an affirmative re-evaluation of co-workers’ privileged status—may lower the envy experienced by employees. Using virtual reality technology, 112 employees participated in a virtual employee meeting at a virtual organization where they were exposed to a new workforce differentiation practice. We show through our experiment that co-worker acceptance of employee privileges negatively influences workplace envy, which was partially mediated by the anticipated ostracism of employees. Moreover, we show that this effect is only found for employees with privileges, who worry more about being ostracized than their non-privileged co-workers. We anticipate that our findings will enable managers to conscientiously differentiate between their employees, using virtual reality simulations to steer employees’ thoughts and feelings in a direction that benefits both employees and organizations

    Reframing talent identification as a status-organising process:Examining talent hierarchies through data mining

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    We examine how peers form talent appraisals of team members, reframing talent identification as a status-organising social process. Using decision trees, we modelled configurations of characteristics and behaviours that predicted dominant versus parallel routes to achieving the status of most talented team member. Across 44 multidisciplinary teams, talent status was most often granted to peers perceived as having both leadership and analytic talent; a STEM degree served a dominant signalling function. Where previous studies assumed that degree operates as a specific status characteristic, we show that a STEM degree operates as a diffuse status characteristic, which predicts status in general. We thus discovered that status hierarchies in teams are also based on the type of talent—and not just the level of talent—members are perceived to possess. In so doing, we offer a proof of concept of what we call ‘talent hierarchies’ in teams, for future research to build on

    Towards an understanding of talent management as a phenomenon-driven field using bibliometric and content analysis

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    This review adopts a phenomenon-driven approach in reviewing the talent management (TM) literature, applying methods derived from bibliometrics and content analysis to evaluate the state of the field and derive implications for research and practice unbiased towards a-priori assumptions of which frameworks or methods are most adequate. Based on analyses of publication volume, journals and their impact factors, most cited articles and authors, preferred methods, and represented countries, we assess whether TM should be approached as an embryonic, growth, or mature phenomenon, and examine dominant (i.e., resource-based view, international human resource management, employee assessment, and institutionalism) versus ‘alternative’ (i.e., knowledge management, career management, strength-based approach, and social exchange theory) theoretical frameworks. Our goal is to assist TM researchers in positioning their work more explicitly vis-à-vis current debates in the existing literature and encourage them to think about which approach best fits their research aims, questions, and designsPeer ReviewedPostprint (author’s final draft

    Fitness maximization by dispersal : evidence from an invasion experiment

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    Dispersal is essential for population persistence in transient environments. While costs of dispersal are ubiquitous, individual advantages of dispersal remain poorly understood. Not all individuals from a population disperse, and individual heterogeneity in costs and benefits of dispersal underlie phenotype-dependent dispersal strategies. Dispersing phenotypes are always expected to maximize their fitness by adaptive decision making relative to the alternative strategy of remaining philopatric. While this first principle is well acknowledged in theoretical ecology, empirical verification is extremely difficult, due to a plethora of experimental constraints. We studied fitness prospects of dispersal in a game theoretical context using the two-spotted spider mite Tetranychus urticae as a model species. We demonstrate that dispersing phenotypes represent those individuals able to maximize their fitness in a novel, less populated environment reached after dispersal. In contrast to philopatric phenotypes, successful dispersers performed better in a low density post-dispersal context, but worse in a high density philopatric context. They increased fitness about 450% relative to the strategy of remaining philopatric. The optimization of phenotype-dependent dispersal, thus, maximizes fitness

    Towards an understanding of talent management as a phenomenon-driven field using bibliometric and content analysis

    Get PDF
    This review adopts a phenomenon-driven approach in reviewing the talent management (TM) literature, applying methods derived from bibliometrics and content analysis to evaluate the state of the field and derive implications for research and practice unbiased towards a-priori assumptions of which frameworks or methods are most adequate. Based on analyses of publication volume, journals and their impact factors, most cited articles and authors, preferred methods, and represented countries, we assess whether TM should be approached as an embryonic, growth, or mature phenomenon, and examine dominant (i.e., resource-based view, international human resource management, employee assessment, and institutionalism) versus 'alternative' (i.e., knowledge management, career management, strength-based approach, and social exchange theory) theoretical frameworks. Our goal is to assist TM researchers in positioning their work more explicitly vis-à-vis current debates in the existing literature and encourage them to think about which approach best fits their research aims, questions, and designs

    Simulating Virtual Organizations for Research: A Comparative Empirical Evaluation of Text-Based, Video, and Virtual Reality Video Vignettes

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    Due to recent technological developments, vignette studies that have traditionally been done in text or video formats can now be done in immersive formats using virtual reality—but are such virtual reality video vignettes superior to traditional vignettes? To address this question, we examine participants’ experiences within a fictitious organization by comparing their responses to a relevant and particularly sensitive organizational phenomenon presented either through written text, a video recording, or a virtual reality experience. The results indicate that participants prefer more immersive methods, and that these increase their attention to critical study details. Moreover, this augments the effect sizes of several measured employee reactions—particularly those with high emotional content—suggesting that virtual reality technology offers a promising avenue for developing ecologically valid vignette studies to measure employee affect. To facilitate and expediate the use of virtual reality video vignettes in organizational research, we provide organizational scholars with a step-by-step instructional guide to develop immersive vignette studies

    Career success across the globe: Insights from the 5C project

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    The Cross-Cultural Collaboration on Contemporary Careers (5C Project) conducted in-depth, longitudinal qualitative research into what career success means to people in a diverse range of countries; specifically: Australia, Austria, Belgium, Brazil, Canada, China, Colombia, Costa Rica, Finland, France, Germany, Greece, India, Israel, Italy, Japan, Korea, Malaysia, Mexico, Netherlands, Nigeria, Norway, Philippines, Portugal, Russian Federation, Serbia, Slovakia, Slovenia, South Africa, Spain, Thailand, Turkey, UK, and USA. This paper presents the seven major meanings of career success that emerged across these diverse global cultures and thus may be deemed relevant all around the world. These are financial security (being able to consistently provide the basic necessities for living), financial achievement (steadily making more money, wealth, incentives, and perks), learning and development (via continuous informal learning on the job and/or formal training and education), work-life-balance (between work and non-work, relationships, activities and interests), positive relationships (as signified by, for instance, enjoying working with people who you respect and admire), positive impact (by helping others in one’s immediate social environment and/or leaving some sort of legacy to a community, or society more broadly), and entrepreneurship founding one’s own enterprise or being able to invent and develop one’s own projects within the work context). We describe examples of each from different cultures and offer practical implications of these meanings for the primary stakeholders of career research: individuals, organizations, as well as counselors, coaches and consultants

    M & L Jaargang 26/6

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    Dieter Nuytten, Lode De Clercq en Piet Stevens Bouwgeschiedenis en restauratie van het voormalige gastenkwartier van de abdijsite van Vlierbeek in Kessel-lo. [Building history and restoration of the former guesthouse of the abbey site Vlierbeek in Kessel-lo.]Als geen ander kreeg de voormalige benedictijnenabdij van Vlierbeek in de loop van haar geschiedenis alle mogelijke (tegen)slagen te incasseren. Gesticht halverwege de 12de eeuw wordt de bloeiperiode vanaf de 16de eeuw gevolgd door financiële aderlatingen, plundering en brandstichting, uitdrijving van de monniken, verbeurdverklaring van de gebouwen, openbare verkoping en sloop.Behalve de kloosterkerk bleef desondanks ook het 18de-eeuwse gastenkwartier bewaard, een getuige van de heropflakkering onder de jansenitisch gezinde abt Pieter Paradaens en omwille van zijn barok inkomportaal door Plantenga geroemd als één der fraaiste in het hertogdom Brabant.Naar aanleiding van de restauratie in 2006 en geruggensteund door fors archiefmateriaal situeert Dieter Nuytten de jongste ingreep in de ruimere historische context.Inge Verdurmen en Dries Tys De militaire domeinen in Vlaanderen, bewaarplaatsen van archeologische en landschapshistorische relicten. [The significance of military domains in Flanders regarding archaeology, history and landscape.]Het moge contradictorisch lijken, maar precies omwille van hun specifiek gebruik blijken de uitgestrekte militaire domeinen sinds de 19de eeuw behoorlijk ongerepte reservaten te zijn gebleven van elders verdwenen archeologisch en paleo-ecologisch erfgoed.Binnen de diverse bewaarde landschapstypes spannen heidelandschappen als door de mens gevormde cultuurlandschappen hierbij de kroon.Van neolithicum tot de 20ste eeuw bewaarden ze sporen van hun gestage evolutie naast een veelbelovend bodemarchief: voor Inge Verdurmen en Dries Tys voldoende redenen om, na een verkennende studie, te pleiten voor uitvoerig onderzoek en de uitwerking van een voor elkeen aanvaardbaar beheersmodel.Nicky Vergouwen, Evelien van Biezen en Catheline Metdepenninghen De restauratie van de kroonluchter uit de kapel van Karel De Goede in de Sint-Salvatorskathedraal te Brugge. [The restoration of a neo-gothic chandelier.]De zaligverklaring van Karel de Goede in 1882 en de creatie door Jean Baptiste Bethune van een nieuw schrijn voor diens opnieuw populaire relieken in de Brugse Sint-Salvatorkathedraal zou de Sociëteiten van Sint Franciscus Xaverius in 1885 aanzetten tot de bestelling van een monumentale, 4 meters 50 centimeters omspannende neogotische lichtkroon Delineante Petro Raoux en uitgevoerd door de Brugse kopergieter Franciscus Blondel. Ruim 120 jaar later bleek een grondige opknapbeurt niet overbodig: een operatie waar de uitvoersters Nicky Vergouwen en Evelien van Biezen, samen met Catheline Metdepenninghen gedetailleerde toelichting bij verstrekken.Summar
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