and religiously in the province. Nigerian refugees As of 30 October 2013, IRIN reports: "There are 8,128 Nigerian refugees in Cameroon's Far North Region, but only 5,289 are registered by UNHCR ... Many of the Nigerians who have fled into Cameroon prefer to stay with friends and family near the border areas. The refugee population fleeing from Boko Haram are scattered in very inaccessible localities in the north of Cameroon, and many who refuse to be registered and stay in camps are still at the mercy of the [Boko Haram] sect, and are seen as threat to local security". Economy Agriculture Sustenance farming serves as the primary occupation for most Far North residents. Crops vary from area to area. Far to the south, planters may raise root crops such as manioc, but as one moves north, cereals dominate. Maize is found in the strip between Chad and Nigeria. Groundnuts are in Maroua and northwest and in the Mandara Mountains. The seasonal flooding of the Logone River and Mayo Tsanaga supports large fields of rice. Millet and sorghum grow all over, though millet tends to grow better than sorghum in arid conditions. Cotton is common, especially in the Diamaré Plain, though it grows poorly in the swampy Logone valley. Beans are also common. Village farmers typically sow in concentric circles around the farm. Hedges surround the farm to keep away animals. Farming tools are typically simple hoes, sickles, knives, and machetes. Farmland is burnt during the dry season, then crops are planted at the first rains. These farms can be quite extensive, as in the Mandara Mountains area. Here, farms climb up the mountain slopes in terraces held in place by stones. Rice is the primary moneymaker for farmers in the Logone valley. This is largely due to the Rice Expansion and Modernisation Company of Yagoua (SEMRY), which operates some 129 km2 of rice fields. Elsewhere, cotton is the most lucrative cash crop. Both textiles and oil come from the cotton.. Société du Développement du Coton (SODECOTON) is the main government body working to improve cotton yields in the region. The Bororo Fulani and Shuwa Arabs both live principally as cattle raisers. Bororo herds roam much of the Far North and often wind up far south for sale in Yaoundé or Douala. Other ethnic groups are today becoming more involved in cattle raising. Horses and donkeys are common in the province,