Ecological implications of domestic cat ranges on the Calayan rail in the forest sanctuary of Calayan Island, Cagayan, Philippines
2018
Lastica-Tennura, E.A. | Afuang, L.F. | Balatibat, J.B. | Masangkay, J.S.
Studies show that domestic cats are considered as one of the biggest threats to wildlife. They have been implicated in species decline on islands and on continents, and affect mammals, birds, reptiles, and amphibians. A preliminary assessment of the threats to the Calayan rail (Gallirallus calayanensis) showed that introduced domestic cats have effects on its conservation status from being vulnerable to being extinct. This study aims to determine domestic cat diet and ranges on Calayan Island; confirm if there is an overlap between cat and G. calayanensis habitat range; identify human perceptions on the possible impact of domestic cats on G. calayanensis; and provide basis for future management options. Results showed that cats traveled an average distance of 112.38 m and overlapped with the habitat of the G. calayanensis. Although cats were not perceived to be threats to local wildlife by the respondents, the cats sampled in the study were able to cross buffer areas into the wildlife sanctuary, implying a possible impact on species vulnerable to predation. Calayan Island, because of its size and importance to biodiversity, can be a possible model for island conservation through the control of introduced predators and management of pet ownership
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