It is unclear whether the recovery of MAS isolates from diseased animals is due to the increased susceptibility of sheep to MAS infections or if the inherent difficulties of culturing sheep MAP isolates in vitro results in the isolation of secondary opportunistic pathogens.
Experiments are designed such that the instability physics occurs in isolation, but secondary processes will eventually develop within the experimental system and affect the physics.
This is why every isolation is secondary and exclusively due to acts of abstraction.
Thus, song divergence may constrain the mating of females to conspecifics and thus could potentially play a crucial role in speciation by promoting genetic isolation on secondary contact [19], [21], [22].
Since RNase treatment significantly enhanced gemin4 recovery by cap-affinity without affecting gemin5 pull-down, we reasoned that gemin4 isolation was secondary to its binding partner gemin5, and thus focused our study on the latter.
In conclusion, we have shown that the predicted association between food and mate preference in phytophagous insects can readily evolve given selection for food preference in allopatry, but the maintenance of reproductive isolation after secondary contact is ultimately dependent on selection acting against hybrids, and/or mating taking place at the food resource.
Divergent sensory adaptation in different habitats could then lead to premating isolation upon secondary contact between populations.
Tropheus colour morphs have been subject to alternating episodes of isolation and secondary contact because of lake level fluctuations.
The APS can occur primary in isolation or secondary in association with other autoimmune conditions, notably systemic lupus erythematosus (SLE).
The interactions between Sierra Nevada with the Great Basin and Mojave Desert biomes during the cyclical glaciations of the Pleistocene created areas of recurrent isolation and secondary contact within and between species.
