Ou Reang Ov District part of Kampong Cham. The Ou Reang Ov district governor reports to His Excellency, the Governor of Tboung Khmum. The following table shows the villages of Ou Reang Ov district by commune. The district is subdivided into 7 communes ("khum") and 141 villages ("phum"). According to the 1998 Census, the population of the district was 82,806 persons in 16,940 households in 1998. With a population of over 80,000 people, Ou Reang Ou district has one of the smaller district populations in Tboung Khmum province. The average household size in Ou Reang Ou is 4.9 persons per household, which is slightly
Time-Place learning days (the bird then waits for the next feeding time and visits the appropriate room for that time); however, room blocking disrupts the spatio-temporal pattern in the granivorous weaver bird "Euplectes hordaceus", which suggests that time-place learning may be stronger in species for which food in nature is more likely to vary spatio-temporally (as is the case for insects, as opposed to grain). Finally, pigeons can learn to peck one key to get food in the morning, and another key in the afternoon, and they maintain this pattern for four days in constant light. Laboratory rats have been taught to