Animal livestock dropped dramatically as well, between 2006 and 2008: bovine dropped by one quarter, pigs by some 45 per cent, sheep and goats by 10 per cent and poultry by 25 per cent. Small farms are the most vulnerable and these trends will probably push more rural families into poverty and further intensify migration away from rural areas to the types of extreme climate conditions expected to become more frequent and severe with climate change. The provision of irrigation in appropriate areas within these two zones would provide significant benefits even under current conditions, potentially increasing yields by 1.5 to two or more times as compared with yields without irrigation.