With the growing Philippine crocodile population in the municipality of San Mariano, There is an urgent need to gather more information about crocodile movements of wild and head-started released crocodiles. Home range size of Philippine crocodiles was unknown as is, therefore, minimal necessary sanctuary size. The aim of this study is to gather reliable scientific information about Philippine crocodile movements and home ranges in San Mariano as a basis for updated localised conservation action plans and Philippine crocodile sanctuaries.
The movements of radio-tagged crocodiles are monitored in the field. Individual crocodile localities are determined using the receiver and antenna and a GPS receiver.