Rentaghost with limited success, to involve the ghosts in his latest business enterprise. When actor Michael Darbyshire (who played the role of Davenport) died in 1979, Anthony Jackson (Mumford) declined to appear in the next series, leaving Michael Staniforth's Claypole the sole original ghost; Davenport and Mumford's absences were explained at the start of the series by the pair having gone on an extended tour of stately home hauntings. After Mumford's departure, the business was taken over by Harold Meaker and his wife Ethel, who suffered from the various problems the ghosts brought to their lives. The long-suffering neighbours of Rentaghost
Court jester hypothesis introduce the term, explains what the Court Jester hypothesis means, describing it as one side of a debate over: The Red Queen hypothesis (focusing on evolution by biotic interactions) and Court Jester hypothesis (focusing on evolution by abiotic factors such as stochastic environmental perturbations) both influence coevolutionary switching in host-parasite interaction. Barnosky acknowledges in the 2001 paper that the Court Jester hypothesis is not necessarily inconsistent with the Red Queen hypothesis: Court jester hypothesis In evolutionary theory, the court-jester hypothesis contrasts the Red Queen hypothesis. University of California, Berkeley professor Anthony D. Barnosky coined the term in 1999 in reference