Formosan sika deer period with a switch to Japan as the major export market. The intensive hunting of sika during the Dutch era must have severely decreased the population of sika. Sika populations continued to decline over the next few centuries as the human population expanded—the natural habitat of sika in the lowland plains was steadily converted to farmland, and later urbanized, as the human population increased. Hunting also continued. As a result, wild sika populations decreased steadily, and in 1969 the last known wild sika was killed. However, deer are easily kept in captivity and there were a number of captive populations
Sika people Catholic mission worked actively since the 17th century; where it is here that their culture acquired European features. Sika people engage in slash-and-burn agriculture with short forms of shifting cultivation. In the west of the coastal area, irrigation is used. Food crops farming include rice, corn, cassava and millet; and other commodities are such as peanuts and coconut palm. Sika people also raise horses, small cattle and poultry. Coastal fishing is also common. Weaving and braiding are well developed. Commodity-money relations are intertwined with numerous survivals of the traditional communal system, where it is manifested in the system of land