To take the Formosan black bear as an example, if one did not use transmitters to track them, one would need to spend money to hire a large number of aboriginals to track them night and day. With rare animals, which cannot simply be found whenever we feel like it, the effort required may be even greater.
以台灣黑熊為例，如果不用發報器追蹤，就需要花錢請大批原住民夜以繼日追尋；對可遇不可求的稀有動物，必須付出的代價可能更高。