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The wildlife of Rwanda comprising its flora and fauna, in prehistoric times, consisted of montane forest in one third the territory of present-day Rwanda. However, natural vegetation is now mostly restricted to the three National Parks and four small forest reserves, with terraced agriculture dominating the rest of the country. ==Geography== Rwanda is a landlocked country in Central Africa, bordered by Burundi, Democratic Republic of the Congo, Tanzania, and Uganda. It measures in size, of which is land and is water. Its highest point is Volcan Karisimbi at , while it lowest point is the Rusizi River at . Rwanda's geography is dominated by savanna grassland with approximately 46 percent considered arable land and 9.5 percent dedicated to permanent crops. Grassy uplands and hills are predominant characteristics of the terrain, while the country's relief is described as mountainous, its altitude demonstrating a decline from the west towards the east. A unique feature in the geography and geology of Rwanda is Africa’s Great Rift Valley. As part of this rift, Albertine Rift passes through the Nyungwe forest. It is a mountainous feature that "as a whole, harbors more endemic birds, mammals, and amphibians than any other region in Africa".〔 A rift valley is defined as: "A rift is where sections of the earth are slowly spreading apart over millions of years, creating mountains, lakes, valleys and volcanoes." Another feature is the Congo-Nile Divide. This mountain range passes through Rwanda in a north to south direction.〔 Nyabarongo River is a major river in Rwanda, part of the upper headwaters of the Nile and accounts for nearly 66% of the water resources of the country fed by a catchment which receives an annual average rainfall of more than 2000 mm.〔 The country has a temperate climate with rainy seasons twice per year, February to April and again November to January. Temperatures in the mountains are mild, though there is the possibility of frost and snow.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Wildlife of Rwanda」の詳細全文を読む スポンサード リンク
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