Search results for "Group composition"
showing 5 items of 5 documents
Experience and dominance in fish pairs jointly shape parasite avoidance behaviour
2018
There is increasing evidence that the composition of a social group influences the fitness of its members. For example, group member identities can determine the exposure risk to contact-transmitted parasites and consequently impact the health of all group members. Here, we propose that group composition may also affect host exposure to parasite propagules prevailing in the environment via collective parasite avoidance behaviours. We explored the spatial avoidance of a trematode parasite, Diplostomum pseudospathaceum, using the simplest form of host groups, pairs of sea trout, Salmo trutta trutta. These pairs showed either (1) between-group heterogeneity in their experience with the parasit…
Mixed company : a framework for understanding the composition and organization of mixed‐species animal groups
2020
Mixed‐species animal groups (MSGs) are widely acknowledged to increase predator avoidance and foraging efficiency, among other benefits, and thereby increase participants' fitness. Diversity in MSG composition ranges from two to 70 species of very similar or completely different phenotypes. Yet consistency in organization is also observable in that one or a few species usually have disproportionate importance for MSG formation and/or maintenance. We propose a two‐dimensional framework for understanding this diversity and consistency, concentrating on the types of interactions possible between two individuals, usually of different species. One axis represents the similarity of benefit types …
Towards Technology for Supporting Effective Online Learning Groups
2018
Group learning has been advocated for increasing active learning among distance learners. However, there is limited understanding on how to engage learners in online courses. Following the design science methodology, we iteratively developed guiding factors for supporting effective online learning groups. The factors for effective online learning groups cover five key dimensions, namely institutional policies, institutional technology, group activity, group composition, and facilitation. The factors are validated through repetitive evaluation using authentic online learning courses, as well as using a focus group discussion with experienced online facilitators. This way, the factors provide…
The relationship between attachment dimensions and perceptions of group relationships over time: An actor–partner interdependence analysis.
2016
A group member’s attachment, anxiety, and avoidance is related to how the group member and the other group members (OGMs) perceive group relationships. In addition, the collective attachment strategies of the OGMs may also be related to how the individual group member and the others perceive the relationships in the group. We extend previous research, using the actor partner interdependence model (APIM), to examine how group members’ and aggregated OGMs’ attachment anxiety and avoid- ance were related to group members’ and OGMs perceptions of positive bonding, positive working, and negative relationships measured early and late in interpersonal growth groups. Three hundred twenty-five Itali…
Sex composition and group climate: A group actor−partner interdependence analysis.
2013
There is a lack of research examining how the proportion of women and men in a group effects both the group member’s perception of group climate and the aggregated perceptions of group climate for the other group members. We adapted the group actor–partner interdependence model (GAPIM; Kenny & Garcia, 2012) to examine how the perception of the group’s climate by a group member and by the other group members are related to the group member’s sex and the sex of the other group members. In addition, we examined how similar the group member’s sex was to the sex of the other group members by analyzing the interaction between the two sex variables. A total of 110 Italian graduate students (96 wom…