Exotic trees can sustain native birds in urban woodlands

Native landscaping has been proposed as a means of increasing native bird diversity and abundance in urban landscapes. However residents’ preferences for vegetation are such that exotic plants are often preferred over natives. We investigated the extent to which native birds foraged in three common native and three exotic tree species in mixed urban woodland during four seasons. We predicted that native birds would spend more time foraging in native trees, and that food resources provided by deciduous exotic trees would be more seasonal than those provided by non-deciduous natives. Native birds spent a lot of time foraging in two of the native tree species, but very little time in native red beech (Nothofagus fusca). They used exotic oak (Quercus robur) throughout the year, and sycamore (Acer pseudoplatanus) seasonally. Oak and European beech (Fagus sylvatica) were used by the largest number of species overall, because they attracted both native and exotic birds. With the exception of tree fuchsia (Fuschia excorticata), which produces large volumes of nectar followed by fruits, all tree species were sources of invertebrates for insectivorous feeding. Seasonality of use was high only in sycamore, indicating limited support for our second prediction. We show that being native doesn’t necessarily entail being a good food source for native birds, and popular landscaping exotic species, such as oak, provide foraging opportunities across all seasons.     

Derogating benevolent behavior of deviant in-group members: group processes within a real-life sample of heterosexual Christians

How do people evaluate potentially good and desirable behavior by others? We investigate how participants (N = 154) evaluate a couple that wants to adopt an orphan that would otherwise die. We collected data from heterosexual Christians in two cities in the Dutch Bible belt. We manipulated whether the adoptive-parents-to-be were a heterosexual couple or a lesbian couple and whether the couple self-identified as devout Christians or not. Using a subjective group dynamics account, we predicted and found that participants evaluated the lesbian couple in more negative terms than the heterosexual couple, especially when this couple was also Christian. These findings illustrate how positive behavior is derogated when displayed by in-group deviants.     

On Early Starters and Late Bloomers: The Development of Sexual Behavior in Adolescence Across Personality Types

Little is known about the relationship between personality and sexual development among mid-adolescents. In the current study, we used a person-centered approach to investigate the relation between personality types and the development of sexual behavior. We hypothesized that undercontrolling adolescents would engage in more advanced, casual, and risky sexual behavior compared to their resilient and overcontrolling peers. Data were used from 407 mid-adolescents (M _age = 14.5) followed across four measurement waves spanning 18 months. Results from latent class analyses (LCA) identified the three classical personality types: resilients, undercontrollers, and overcontrollers. Controlling for perceived pubertal timing and biological sex, latent growth curve analyses in Mplus showed that, at baseline, undercontrollers were more sexually experienced and engaged in more casual and risky sexual behavior than resilients and overcontrollers. Although initial levels of sexual behavior differed by personality types, over time increases in sexual behavior occurred at a similar rate across the types. Overall, the current study showed that undercontrolling adolescents are early sexual developers who engage in more advanced, casual, and risky sexual behavior than other adolescents. The implications of these findings for longer-term differences in sexual behavior between personality types in later adolescence are discussed.     

Organizational crisis-denial strategy: The effect of denial on public framing

By applying a framing perspective, this study explores the effect of a crisis-denial strategy on public response. The online public framing of a specific crisis is compared with the crisis-denial frame provided by the organization. An automated semantic-network analysis is used to identify frames embedded in the public and organizational communication. The Max Havelaar crisis revealed that denial strategy is not always unsuccessful and would advance a more complex understanding. Moreover, the framing perspective and the semantic-network approach prove to be useful to analyze crisis-response strategies.     

Alternative Mechanisms Guiding Salespersons’ Ambidextrous Product Selling

Ambidextrous product‐selling strategies, in which companies’ salespeople concurrently pursue the sale of existing and new products, are hard to implement. Previous studies have addressed this issue for relatively simple consumer settings with the manager in close proximity to the salespersons and focusing on different levels of control and autonomy to resolve this issue. However, little is known about how field salespeople can be influenced to pursue such dual goals proactively for more complex business‐to‐business products. In this study, the authors distinguish between salespeople's proactive selling behaviour for new and existing products, and study the impact of two alternative mechanisms: a situational mechanism (i.e. perceived manager product‐selling ambidexterity) and a structural mechanism (i.e. salesperson organizational identification). Using a time‐lagged, multisource data set from a large ambidextrous company, the authors demonstrate that both mechanisms contribute to salespeople's proactive selling of new and existing products, but also act as each other's substitutes. The results suggest two most likely strategies for salespeople to obtain overall sales targets: focusing on existing product selling; or acting ambidextrously. The latter approach offers the benefits of better achieving ambidextrous company sales goals and of greater performance stability, and is thus preferred.     

(Re)Conceptualising inclusive education in New Zealand: listening to the hidden voices

This article explores the experiences of 14 students with severe and complex behaviour, their caregivers, and teachers/principals as the students transition from a disestablished residential school back to mainstream schools, with support from the Intensive Wraparound Service (IWS). Interviews were the primary source of data collection. Data were collated into 14 cases, and analysed using a general inductive approach. Two broad themes are addressed in the article: education and relationships/communication. The research found that the IWS is not living up to its rhetoric. Suggestions made for improvement are based on approaches that participants found worked for them.     

Erasing Bisexual Identity: The Visibility and Invisibility of Bisexuality as a Sexual Identity in the Dutch Homosexual Movement, 1946-1972

Scholars of bisexuality commonly agree that bisexuality as a distinct sexual identity remained invisible for epistemic reasons until the 1970s. This article examines this dominant explanation for the late invention of bisexual identity by discussing how bisexuality functioned in the homosexual movement in the Netherlands from 1946 to the early 1970s. This historical case study shows that in the Netherlands bisexuality as an identity existed in the movement in the first postwar decades and was erased in the late 1960s, not only for epistemic reasons but also for tactical ones. The article aims to contribute to a better insight into the history of bisexuality and the politics in the Dutch postwar homosexual movement.     

A Bayesian control chart for a common coefficient of variation

By using the medical data analyzed by Kang et al. (2007 Kang, C.W., Lee, M.S., Seong, Y.J., Hawkins, D.M. (2007). A control chart for the coefficient of variation. J. Qual. Technol. 39(2):151–158.[Taylor &; Francis Online], [Web of Science ®] , [Google Scholar]), a Bayesian procedure is applied to obtain control limits for the coefficient of variation. Reference and probability matching priors are derived for a common coefficient of variation across the range of sample values. By simulating the posterior predictive density function of a future coefficient of variation, it is shown that the control limits are effectively identical to those obtained by Kang et al. (2007 Kang, C.W., Lee, M.S., Seong, Y.J., Hawkins, D.M. (2007). A control chart for the coefficient of variation. J. Qual. Technol. 39(2):151–158.[Taylor &; Francis Online], [Web of Science ®] , [Google Scholar]) for the specific dataset they used. This article illustrates the flexibility and unique features of the Bayesian simulation method for obtaining posterior distributions, predictive intervals, and run-lengths in the case of the coefficient of variation. A simulation study shows that the 95% Bayesian confidence intervals for the coefficient of variation have the correct frequentist coverage.     

Cultural intermediaries and the circuit of culture: The Digital Ambassadors project in Johannesburg,South Africa

The question raised by Cheney and Christensen (2001) as to “what a non-Western, non-managerial and non-rationalist form of public relations will look like” (p.182), together with the call made by Gregory (2014) for public relations practitioners (PRPs) to be active social change agents, motivated this paper. The aim of this research is to follow a culture-centred approach and apply the circuit of culture (Curtin & Gaither, 2005) to investigate the meanings that young people (aged 18 to 34), as cultural intermediaries, ascribe to their participation in a digital empowerment project implemented by the City of Johannesburg, South Africa. This research forms part of a larger, ongoing multi-disciplinary research project.The research highlights the complexity of projects of this nature, the wide variety of stakeholders involved, the significance of structure, the importance of training of cultural intermediaries, and the benefits such intermediaries gain from their involvement. A key finding is that self-development and financial benefit contribute significantly to the success of cultural intermediaries. This paper contributes to the field of public relations by providing an analysis of cultural intermediaries’ contribution to the circuit of culture as influenced not only by production and consumption but also by identity and regulation as seen in the way they represented the meaning created during their experience.