anger ed ▁Species ▁( PT ES ) ▁is ▁a ▁char itable ▁organisation ▁registered ▁in ▁England ▁and ▁Wales . ▁It ▁exists ▁to ▁promote ▁the ▁conservation ▁of ▁rare ▁or ▁decl ining ▁species ▁and ▁habit ats ▁in ▁the ▁UK ▁and ▁world wide ▁through ▁monitoring , ▁public ▁eng agement , ▁education , ▁and ▁through ▁the ▁fund ing ▁of ▁conservation ▁projects ▁and ▁research . ▁It ▁also ▁own s ▁and ▁man ages ▁two ▁nature ▁res erves . ▁As ▁of ▁April ▁ 2 0 1 5 , ▁P T ES ▁has ▁ 1 6 ▁employees , ▁five ▁trust ees ▁and ▁coordinates ▁around ▁ 2 4 , 0 0 0 ▁volunte ers ▁in ▁the ▁UK . ▁P T ES ▁re lies ▁on ▁don ations ▁from ▁the ▁general ▁public ▁and ▁gr ants ▁from ▁trust s ▁and ▁found ations ▁to ▁continue ▁its ▁work ▁- ▁it ▁receives ▁no ▁core ▁fund ing ▁from ▁the ▁UK ▁Government . ▁The ▁organisation ▁has ▁registered ▁char ity ▁number ▁ 2 7 4 2 0 6 . ▁ ▁History ▁P T ES ▁was ▁founded ▁in ▁ 1 9 7 7 . ▁Origin ally ▁based ▁in ▁South ▁K ens ington ▁at ▁Imperial ▁College ▁London , ▁in ▁ 1 9 9 3 ▁the ▁organisation ▁moved ▁to ▁its ▁present ▁location ▁in ▁B atter se a , ▁south - west ▁London . ▁In ▁ 2 0 0 1 ▁P T ES ▁developed ▁M amm als ▁Trust ▁UK , ▁a ▁restricted ▁fund ▁and ▁campaign ▁target ing ▁the ▁conservation ▁of ▁British ▁m amm als . ▁In ▁ 2 0 0 6 , ▁M amm als ▁Trust