enant he ▁surv ive . ▁Ne otrop ical ▁Pr imate ▁Conserv ation , ▁Pro yect o ▁Mon o ▁T oc ón ▁and ▁Ama z ón icos ▁para ▁la ▁Ama z onia ▁are ▁working ▁in ▁the ▁more ▁southern ▁areas ▁to ▁protect ▁the ▁mon key . ▁The ▁Rio ▁May o ▁tit i ▁is ▁a ▁fairly ▁incon sp ic uous ▁creature , ▁making ▁observation ▁and ▁research ▁difficult ▁to ▁obtain . ▁Therefore , ▁the ▁traditional ▁use ▁of ▁tran sect ▁observation ▁to ▁monitor ▁the ▁mon key ' s ▁population , ▁is ▁less ▁effective . ▁Instead , ▁other ▁methods ▁of ▁calculating ▁the ▁tit i ▁mon key ' s ▁density ▁in ▁certain ▁areas ▁have ▁been ▁taken , ▁such ▁as ▁research ▁into ▁the ▁species - specific ▁calls ▁en demic ▁to ▁a ▁certain ▁area . ▁ ▁Location , ▁habitat ▁and ▁activity ▁Rio ▁May o ▁tit is ▁usually ▁live ▁in ▁dry ▁wood land ▁areas ▁with ▁a ▁lot ▁of ▁v ines ▁and ▁plants . ▁They ▁are ▁found ▁in ▁the ▁Atlantic ▁Coast ▁of ▁Brazil ▁and ▁in ▁tropical ▁areas ▁of ▁the ▁Amazon , ▁the ▁upper ▁Par agu ay ▁bas in , ▁in ▁Bo i rio , ▁and ▁Santa ▁Cruz . ▁ ▁They ▁are ▁found ▁in ▁Peru ▁in ▁the ▁northern ▁part ▁of ▁the ▁Department ▁of ▁San ▁Martin , ▁at ▁alt itudes ▁of ▁ 7 5 0 – 9 5 0 ▁meters ▁and ▁also ▁in ▁the ▁fo oth ills ▁of ▁the ▁And es . ▁ ▁One ▁P . ▁o enant he ▁family ▁was ▁studied ▁by ▁scient ist ▁De L uy cker ▁from ▁October ▁ 2 0 0 4