Tanzania is a large country with vast biological diversity and high numbers of threatened species,well documented. According to IUCN (2008), Tanzania has 10 008 known species of higher plants including endemic and non-endemic, out of which 235 (2.9%) are threatened. Of the 316 known mammal species 42 are threatened (excluding marine mammals). There are 229 known breeding bird species out of which 33 are threatened (excluding those that migrate to the country in the northern winter); 335 known reptile species out of which 5 are threatened; and 116 amphibian species and 331 known fish species out of which 17 are threatened. The Tanzanian government has made significant progress in reducing the number of threatened species by 10 per cent between 2003 and 2008, as shown in the figure.
From collection: Zambezi River Basin - Atlas of the changing Environment