I didn't go to university http://redtube.in.net/ redtube xxx âStudies like this also point to the need for an ecologically effective number of wolves,â co-author Robert Beschta, an OSU professor emeritus, said. âAs we learn more about the cascading effects they have on ecosystems, the issue may be more than having just enough individual wolves so they can survive as a species. In some situations, we may wish to consider the numbers necessary to help control over-browsing, allow tree and shrub recovery, and restore ecosystem health.â