URban Biotopes of Aotearoa New Zealand (URBANZ) (I): composition and diversity of temperate urban lawns in Christchurch

Christchurch urban lawns are dominated by non-native grasses and forbs. However, we document considerable plant diversity; the total number of species encountered in our 327 sampled lawns was 127, although 80 species occurred in <2% of lawns. Seven distinct lawn communities were identified by Two-Way INdicator SPecies ANalysis using occurrence of 47 species that occurred in > 2% of lawns. Our ability to explain variation in species composition was surprisingly good and indicates intensity of lawn maintenance such as frequency of mowing, irrigation, fertiliser, and herbicide use and whether clippings are removed or not plays the major role. Species richness significantly declines with an increase in total area of contiguous lawn, leaf litter cover, the presence of grass clippings, and on loamy soil. Hence, park lawns with coarser management had lower species richness than residential lawns. Native species were more prevalent in well tended residential lawns, where more frequent mowing and removal of clippings or litter build-up diminishes shoot competition or shading. There is tremendous potential for more native species in New Zealand lawns which would contribute substantially to the conservation of endangered lowland herbaceous flora.     

Recruitment and consent of adults with intellectual disabilities in a classic grounded theory research study: ethical and methodological considerations

Researchers are required to provide opportunities for people with intellectual disabilities to be included in research which affects their lives. This paper reports on one research study inclusive of 12 adults with intellectual disabilities. Ethical and methodological realities of recruiting research participants and obtaining informed consent while enlisting a classic grounded theory methodology are discussed. The findings of this paper focus on building and maintaining trusting relationships with relevant gatekeepers and engaging in reasonable accommodations to support decision-making for and with adults with intellectual disabilities. This paper contributes to an understanding of how to apply for ethical approval, negotiate access to potential participants, enlist reasonable accommodations and obtain informed consent in the context of the methodological strictures of classic grounded theory methodology. Research projects need to be carefully planned making space for the development of empathic relationships with both the potential participants and also with the structures and services supports.     

Be Careful Where You Smile: Culture Shapes Judgments of Intelligence and Honesty of Smiling Individuals

Smiling individuals are usually perceived more favorably than non-smiling ones—they are judged as happier, more attractive, competent, and friendly. These seemingly clear and obvious consequences of smiling are assumed to be culturally universal, however most of the psychological research is carried out in WEIRD societies (Western, Educated, Industrialized, Rich, and Democratic) and the influence of culture on social perception of nonverbal behavior is still understudied. Here we show that a smiling individual may be judged as less intelligent than the same non-smiling individual in cultures low on the GLOBE’s uncertainty avoidance dimension. Furthermore, we show that corruption at the societal level may undermine the prosocial perception of smiling—in societies with high corruption indicators, trust toward smiling individuals is reduced. This research fosters understanding of the cultural framework surrounding nonverbal communication processes and reveals that in some cultures smiling may lead to negative attributions.     

Trait Affection Predicts Married Couples’ Use of Relational Maintenance Behaviors

The present study analyzed the role that trait affectionate communication, an individual-level trait, plays in dyads’ enactment of relational maintenance behaviors. We hypothesized that trait affection positively predicts both husbands and wives’ enactment of relational maintenance behaviors. In addition, we hypothesized that the relative contribution of wives’ trait affection to relational maintenance would be stronger than that of husbands. One hundred and forty-three married heterosexual couples completed questionnaires, and data were analyzed using the actor-partner interdependence model. Results revealed significant actor effects in 9 out of 10 cases. Results also revealed four partner effects. Husbands and wives’ trait affection mutually influenced their enactment of assurances, and husbands’ trait affection positively predicted wives’ enactment of positivity and network sharing. Results are discussed in terms of relational maintenance research and theories of affectionate interaction.