Rio Mayo titi this species to survive, their forests need to be protected to avoid overpopulation. Different conservation groups are working to help "P. oenanthe" survive. Neotropical Primate Conservation, Proyecto Mono Tocón and Amazónicos para la Amazonia are working in the more southern areas to protect the monkey. The Rio Mayo titi is a fairly inconspicuous creature, making observation and research difficult to obtain. Therefore, the traditional use of transect observation to monitor the monkey's population, is less effective. Instead, other methods of calculating the titi monkey's density in certain areas have been taken, such as research into the species-specific calls endemic to
Filippo Titi had been published nearly a century earlier by Francesco Bocchi. A nineteenth century guidebook to Rome, which focused more on antiquity, was published by Carlo Fea. See Seven Pilgrim Churches of Rome for other antecedent or roughly contemporary guidebooks. Filippo Titi Abate Filippo Titi was an Italian Roman Catholic Protonotary apostolic, and an art historian, best known for his inventory of the artistic content of churches in Rome, titled "Studio di Pittura scoltura et architettura nelle Chiese di Roma", published by Mancini in 1674 Titi was born in town of Città di Castello in Umbria. He studied arts with Virgilio