We employed both field and laboratory experimental designs using multiple paired high- and low- predation populations in order to isolate the roles of ecology, geography, and both inter and intra sexual selection on the progress or limitations to the evolution of reproductive isolation.
That analysis highlights some pathways and limitations to the evolution of pollen germination.
Antagonistic pleiotropy, that is, the negative fitness effect in the primary host of mutations allowing the infection of and the multiplication in a new host, has long been thought to be the main limitation to the evolution of generalist viruses and thus to emergence.
The first limitation is the evolution of resistance.
In the case of Branchiopoda, the role of low population densities and mate limitation in the evolution of sexual systems is still poorly understood [ 82].
Migration can cause mate limitation and the evolution of self-compatibility (Tsuchimatsu et al., 2010), and then self-compatibility can, in turn, facilitate migration.
Given that the proportion of successful excavations decreases as coevolutionary escalation proceeds ([ 13]; see also Fig. 4C; Table 1), presumably due to the mortality costs of weevils with long rostra (cf., [ 76]) and the resultant limitation in the evolution of this weevil trait, thicker pericarps might further increase the fitness of camellias.
Although network size did correlate with all three metrics of complexity, its inability to explain the variance in PCPC and EC revealed its limitations in influencing the evolution of complexity.
Given the brief time period since the start of the economic crisis in Greece (a potential methodological limitation), we examine the evolution of fertility from 1960 to 2015, using empirical data provided by the Hellenic Statistical Authority and paying special attention to changes during the crisis years.
This nutrient limitation has led the evolution of different growth strategies (see r/K selection theory).
