In addition to scenarios of ongoing migration, we simulated migration bursts.
This also supports the scenario of an ongoing host-shift from Cynara to Onopordum, as other studies have also found a host shift to be followed by a lingering preference for the traditional host remaining among insects using the novel host (Singer et al. 1993; Berlocher and Feder 2002).
"Our baseline scenario remains one of ongoing growth, but risks are clearly on the downside," he said.
The scenarios included extrapolations of ongoing water demand trends and the intended result of environmental policy defined by the Ministry of the Environment.
Lister says this upbeat scenario takes a year of ongoing mentoring, including "intensive" everyday contact for the first three months in a job.
Alternative scenarios go beyond the frequently used 'business as usual' scenarios derived by extrapolation of ongoing trends, and comprise changes in developments in the course of time.
Future scenarios are built under consideration of ongoing political activities, technical and geographical constraints, and projected future power demand.
Model scenario analysis suggested a masking effect of ongoing soil fertility decline by use of fertilizers and hybrid crop varieties, indicating a resource overuse that becomes increasingly irreversible without external interventions.
In between these extremes, a variety of intermediate scenarios could be envisaged with varying levels of ongoing gene flow during speciation.
The issue of fire scenarios approach to fire protection is often subject of ongoing discussions within the fire safety engineering community.
