scholarly journals Decision letter: Group size and composition influence collective movement in a highly social terrestrial bird

2020 ◽  
Author(s):  
Samuel L Díaz-Muñoz
Keyword(s):  
Group Size ◽  
Collective Movement ◽  
Letter Group ◽  
Group Size And Composition

scholarly journals Group size and composition influence collective movement in a highly social terrestrial bird

eLife ◽  
2020 ◽  
Vol 9 ◽  
Author(s):  
Danai Papageorgiou ◽  
Damien Roger Farine
Keyword(s):  
Home Range ◽  
Group Size ◽  
Collective Intelligence ◽  
Group Living ◽  
Home Range Size ◽  
Range Size ◽  
Collective Movement ◽  
Information Pooling ◽  
Movement Characteristics ◽  
Group Size And Composition

A challenge of group-living is to maintain cohesion while navigating through heterogeneous landscapes. Larger groups benefit from information pooling, translating to greater ‘collective intelligence’, but face increased coordination challenges. If these facets interact, we should observe a non-linear relationship between group size and collective movement. We deployed high-resolution GPS tags to vulturine guineafowl from 21 distinct social groups and used continuous-time movement models to characterize group movements across five seasons. Our data revealed a quadratic relationship between group size and movement characteristics, with intermediate-sized groups exhibiting the largest home-range size and greater variation in space use. Intermediate-sized groups also had higher reproductive success, but having more young in the group reduced home-range size. Our study suggests the presence of an optimal group size, and composition, for collective movement.

Are group size and composition associated with treatment outcomes in group cognitive behavioural therapy for chronic pain?

Pain ◽  
2018 ◽  
Vol 159 (4) ◽  
pp. 783-792 ◽  
Author(s):  
Dianne Wilson ◽  
Shylie Mackintosh ◽  
Michael K. Nicholas ◽  
G. Lorimer Moseley ◽  
Daniel Costa ◽  
...  
Keyword(s):  
Chronic Pain ◽  
Treatment Outcomes ◽  
Cognitive Behavioural Therapy ◽  
Group Size ◽  
Behavioural Therapy ◽  
Group Cognitive Behavioural Therapy ◽  
Cognitive Behavioural ◽  
Group Size And Composition

Group Size and Composition of the Florida Key Deer

1976 ◽  
Vol 40 (3) ◽  
pp. 454 ◽  
Author(s):  
J. W. Hardin ◽  
N. J. Silvy ◽  
W. D. Klimstra
Keyword(s):  
Group Size ◽  
Group Size And Composition ◽  
Key Deer

scholarly journals Effects of human disturbance on the mongoose lemur Eulemur mongoz in Comoros: implications and potential for the conservation of a Critically Endangered species

Oryx ◽  
2015 ◽  
Vol 51 (1) ◽  
pp. 60-67 ◽  
Author(s):  
Bakri Nadhurou ◽  
Roberta Righini ◽  
Marco Gamba ◽  
Paola Laiolo ◽  
Ahmed Ouledi ◽  
...  
Keyword(s):  
Group Size ◽  
Negative Impact ◽  
Human Impacts ◽  
Conservation Status ◽  
Environmental Parameters ◽  
Critically Endangered ◽  
Anthropogenic Pressure ◽  
Critically Endangered Species ◽  
The Impact ◽  
Group Size And Composition

AbstractThe decline of the mongoose lemur Eulemur mongoz has resulted in a change of its conservation status from Vulnerable to Critically Endangered. Assessing the current threats to the species and the attitudes of the people coexisting with it is fundamental to understanding whether and how human impacts may affect populations. A questionnaire-based analysis was used to study the impact of agriculture and other subsistence activities, and local educational initiatives, on lemur abundance, group size and composition in the Comoros. On the islands of Mohéli and Anjouan we recorded 214 lemurs in 63 groups, the size and composition of which depended both on environmental parameters and the magnitude and type of anthropogenic pressure. There was no evidence of an impact of anthropogenic disturbance on abundance. In contrast, group size and composition were sensitive to human impacts. The most important threats were conflicts related to crop raiding, as well as illegal capture and hunting. The promotion of educational activities reduced the negative impact of hunting and illegal activities. These results highlight a need for urgent conservation measures to protect the species.

Fuzzy Dynamic Groups

2012 ◽  
pp. 41-60 ◽  
Author(s):  
José-Domingo Mora
Keyword(s):  
Fuzzy Sets ◽  
Group Size ◽  
Cognitive Processing ◽  
Statistical Models ◽  
Fuzzy Measures ◽  
Individual Consumption ◽  
Group Size And Composition

Television audiences have been shown to be a mixture of lone individuals and groups of viewers, with groups contributing at least 50% of total ratings. Viewing with others also makes the experience more enjoyable and has important effects on cognitive processing of programs and advertisements. A major problem for researchers and managers is that groups of viewers are dynamic entities difficult to define or measure. This study frames groups of television viewers as fuzzy sets and presents fuzzy measures of group size and composition. The effects of these characteristics on individual consumption of television are assessed using statistical models, which incorporate the arithmetic forms of the proposed measures.

Play Behavior of Wild Grey Seals (Halichoerus grypus): Effects of Haulout Group Size and Composition

2016 ◽  
Vol 42 (2) ◽  
pp. 144-161 ◽  
Author(s):  
Vaida Survilienė ◽  
Osvaldas Rukšėnas ◽  
Patrick Pomeroy
Keyword(s):  
Group Size ◽  
Play Behavior ◽  
Halichoerus Grypus ◽  
Group Size And Composition
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