In areas where the spatial cohesion of the habitat is below the critical level of metapopulation persistence, the expansion of ranges will be blocked.
Our data also suggested that multiple Pleistocene refugia (tropics-southeastern USA, midwestern, and northeastern USA), but not western Mexico (Jalisco), contributed to post-glacial northward expansion of ranges.
Hampe and Petit (2005) make the important point that in many tree species, this is far from true, due to contraction and expansion of ranges during the Quaternary glaciations.
This finding points to a worrisome ongoing expansion of the range of D. vexillum in a subtropical sea, which represents an expansion of its introduced range of distribution towards warmer areas.
Particularly in the works of Ockeghem, the melodic compass expanded, especially in the lower part; with the expansion of total range, there was less voice crossing.
Focus is on breath, voice production, expansion of vocal range and stamina, and clarity of articulation.
Yet elsewhere he seems to say that the task of expanding freedom amounts to, and requires, nothing more than the expansion of the range of available choices.
Even further expansion of the range of mating partners for synthetic chromosome bearing strains could be achieved using physical methods such as spheroplast fusion27.
Phonetogram contour changes were examined, with the primary focus on expansion of frequency range and/or intensity control.
Currently, A. hygrophila occurs in a region below 30.8 oN in continental China, but climate warming could trigger an expansion of the range to higher latitudes and increase its non-target attacks on A. sessilis.
All these lead to expansion of the range of immobilized polymer adsorption ability and improve its adsorption capacity.
