Others are the results of European colonial rule, which broke populations up into governable units, a divide-and-conquer strategy, leaving neighbors fighting among themselves for dwindling resources.
Airstrikes will further traumatise an already broken population.
In short, "The 2020s promise to be a decade in which breaking population trends come to play an important role in world affairs," say CSIS analysts.
We then focus on the first post-pandemic influenza seasons and seek to determine under which conditions a subsequent variant to the pandemic strain can break population herd immunity, thus leading to a typical seasonal epidemic.
In relation to the data presented here for the cosmopolitan species P. tarda, it is possible that limited larval dispersal/gene flow is associated with deep genetic breaks between populations between the North Pacific Ocean and the North Atlantic.
Ayre et al. [9] show that phylogeographic breaks within populations of marine organisms correspond to the degree to which the organism can utilize sheltered habitat, while Dawson [18] demonstrates a correlation between the distribution of edge-effect species and phylogeographic structure.
and (3) Are there phylogeographic breaks separating populations from different biomes (Caatinga and BAF) and ecoregions (Chapada Diamantina and Planalto da Borborema)?
Consistent patterns of strong lineage divergence among different molecular datasets indicate genetic breaks between populations inhabiting geographically distinct mountain regions.
The spatial analysis of molecular variance implemented in SAMOVA was not able to identify possible breaks among populations.
These geological events that impede gene flow and lead to strong intraspecific breaks among populations eventually lead to lineage splitting or cladogenesis.
