-travel 1976 1976- 2001-2009 964 africa agriculture anna anthropology antiquities archaeology autobiography badkhen bibliography bio026000bio002000soc002010 biography cattleherders climaticchanges cultural culturalheritage desertecology desertification economicassistance economicconditions emigrationandimmigration environmentalconditions famines foodsupply fula(africanpeople) governmentpolicy humanecology international mali mannersandcustoms migrations militaryrelations nationalsecurity nomads northeast personalmemoirs politicsandgovernment prevention sahara security socialconditions socialscience socialsciences sustainabledevelopment terrorism travel travelbadkhen unitedstates waronterrorism