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
Titi Tinggi (state constituency) Besar, Titi Tinggi, FELDA Mata Ayer, Kampong Kastam, Padang Besar, FELDA Rimba Mas, Lubok Sireh. Titi Tinggi (state constituency) Titi Tinggi is a state constituency in Perlis, Malaysia, that has been represented in the Perlis State Legislative Assembly. The state constituency was first contested in 1974 and is mandated to return a single Assemblyman to the Perlis State Legislative Assembly under the first-past-the-post voting system. , the State Assemblyman for Titi Tinggi is Teh Chai Aan from Barisan Nasional (BN) 2004–2016: The constituency contains the polling districts of Jalan Padang Besar, Titi Tinggi, FELDA Mata Ayer, Kampong Kastam, Padang Besar,