This result could be partly due to the apparent lack of self-recruitment in West Coast L. littorea populations revealed in our demographic analyses (Fig. 3), which obviates the possibility of post-establishment drift, selection, and other processes that often affect the genetic makeup of introduced populations [10], [12].
Among the main outstanding issues related to the seismic design of these structures are (1) the determination of appropriate response modification factors (R,CdandΩ0), (2) the establishment of drift limits to avoid damage of structural and nonstructural components, and (3) clarification of the role that the roof diaphragm plays on the seismic behavior of light-weight roof structures.
Loss of alleles and reduction in genetic variation can also occur during the early stages of establishment because of random genetic drift due to small population size and selective pressure exerted by novel environments [16], [24].
Note that the founding individuals are not random mutants, and this is different from the conventional scheme of founder establishment associated with random genetic drift.
Then, inbreeding depression by drift could favour the establishment of later immigrants because their hybrid offspring would enjoy higher fitness.
Alongside the roles of drifting of Indian Plate, establishment of monsoon climate, neo-tectonic uplifts and re-lateritization of ferruginous shelf deposits are determined here to unearth the palaeogenesis of primary and secondary laterites in West Bengal.
The exploration of concept drift detection method and the establishment of the system updating mechanism are topics of growing interest in the field of data mining research.
In another case, large-scale intervention on 35 ha of the Amsterdam Water Supply Dunes in 1995 resulted in the restoration of active sand drift with opportunities for the establishment of pioneer vegetation.
This produces a comparably small effective population size and therefore a small gene pool for the species, encouraging the establishment of new chromosomal patterns through genetic drift, meiotic drive and inbreeding [ 60].
As per the usual pattern, the evening wound down to a quiet close, people drifting off to a local establishment.
As an old-fashioned leftwinger, Harrington was later dismissive of many of the GLC members who surrounded Livingstone but then drifted into the Blairite political establishment.
