Exact(1)
Furthermore, repeated foundation events along a colonization front result in adjacent populations being genetically more similar than distant populations, a pattern termed isolation by distance (IBD) [51], [52].
Similar(59)
We attempted to crudely measure the impact of basic public health infrastructure in two adjacent populations whereby a census was conducted shortly following the study period.
In light of this conflict of low gene flow despite high dispersal potential [ 13, 14], we wanted to investigate the importance of intraspecific priority effects in segregating adjacent populations of planktonic phytoplankton.
To address whether the presence or absence of Nymphaea is associated with variation in snail crushing resistance and pigmentation, we compared the crushing resistance (Analysis of Variance) and frequency of banded snails (Log likelihood tests) in three pairs of adjacent populations in the Rio Mesquites, Los Remojos, and Tio Candido.
More speculatively, stronger female preference in the more adjacent populations to RED is a pattern expected with reinforcement.
We were able to collect individuals in 11 previously known populations (50%; see Additional File 1), failed to find any sample in three known populations, but found samples in adjacent unknown populations (13.6%; [ 15]).
Multiple lineages often existed even in geographically narrow areas (e.g., within a 20-km range), so transplantation between adjacent populations in restoration activities should be carefully designed so as not to change the gene pool of local populations significantly.
For the Americas, our data favor a stepping-stone model in which gene flow is higher among adjacent populations but in which, at the same time, North American and southeastern Brazilian populations are directly connected, likely via sea trade.
The barriers can be interpreted as breaks between adjacent populations in their morphological construction.
Certain adjacent populations in different groups were selected to perform the subsample comparisons: YXP and LLP versus YXW and GSW, OJW and YJW versus OJD and YJD.
Mitochondrial phylogeographic patterns retained signals of large-scale migration events triggered by historical, major lake level fluctuations, whereas AFLP data indicated genetic cohesion among local groups of populations resulting from secondary contact of adjacent populations in the course of the more frequently occurring, minor lake level fluctuations.
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