Setting up laboratory colonies wherein queen number could be manipulated might help to further disentangle whether the relative amount of CC required to influence nestmate discrimination results from the number of queen in the colony (i.e. social environment) or from the social origin of resident queens (i.e. genetic background).
For instance, an egg-signal that would prevent workers from recognising maternal origin of resident eggs could have been selected in polygyne colonies to limit the costs of nepotistic behaviours [45], and by doing so, it could favor the general acceptance of polygyne eggs by foreign conspecific workers.
While Kajstura et al have provided compelling evidence for the origin of resident stem cells in human lungs, the definitive conclusions of this study are exciting yet limiting and replication of the most significant observations in a second, independent group of subjects is now required.
The origins of resident fatigue are multi-factorial [ 19].
The precise reasons for targeting Sparkbrook and Washwood Heath are not known, but it appears that assumptions might have been made about the threat posed by those areas based on the religion or ethnic origin of the residents.
Lack of detail on origins for residents of the Atlantic provinces and Territories in several years and comparability problems across years made use of aggregated categories necessary.
To study the origins of the residents' prevalence beliefs, we examined the influence of experience on both the accuracy and the precision of prevalence judgments.
Niles is suburban rather than rural, but the variety of origins of incoming residents may have made for differences in proportions of susceptibles within subgroups (as may have occurred in English towns with marked increases in commuting levels, for these also experienced excesses (Kinlen et al, 1991)).
All participants were of Arabian origin and residents of the Al-Ahsa urban area, which is located on the east coast of Saudi Arabia.
In contrast to the situations of striking rural change associated with increases in population density shown in Figure 1, these six studies (see Table 1) focussed on areas, often largely urban, without recent known population increase, but with a high level, and diversity of origin, of 'migrants' (persons resident elsewhere a year before, a standard census item).
