No genomes from Solutren peoples have ever been sequenced, and you should always be cautious when a case is made for extending present day patterns of genetic variation into the past without direct confirmation from ancient DNA.
The present-day pattern of erosion was presumably initiated at ca. 15 ka at the time when the last glacial period was terminated.
The model performs well at reproducing the present-day pattern of rainfall in the northeastern Mediterranean, and it generates physically-interpretable estimates of past rainfall consistent with global and regional proxy records of early Holocene climate.
Therefore, the present study focuses more specifically on the three taxa that were biphyletic in the mtDNA network, argentatus, hyperboreus, and marinus, in order to obtain a more detailed insight into the various demographic/introgression events that caused the present-day pattern of genetic variation.
Our findings demonstrate that heathland farming needs to be considered as a "historical site factor" when analysing forest ecosystem processes, since soil legacies resulting from heathland farming may still impact present-day patterns of biodiversity and tree growth in lowland forest ecosystems.
Most research in evolution pursues the comparative method, in which the present-day patterns of organismal diversity are examined in order to infer historical processes of change [ 1].
To investigate the extent of continuity in the paternal lineages, we examined the present-day patterns of distribution of the Y chromosome lineages observed in our ancient populations (Table 2).
The diversity of concepts and labels in use highlighted above indicated a need for the whole research team to have an appreciation of the historical and present-day patterns of immigration and the policy and societal discourses relating to migration and ethnicity across the three countries.
Therefore, extreme environmental changes associated with the Last Glacial Maximum (LGM; ~22-19 ka) may have been the most recent climatic factors that affected present-day patterns of biodiversity prior to the global proliferation of humans and anthropogenic environmental disturbance [ 2, 6].
There is a critical lack of comparable data to understand scale dependent processes, or the relative importance of varying geographic and historical contexts in determining present-day patterns.
These results provide an explanation for present day distribution patterns and origins of endemicity for African rain forest trees.
