ナショナルジオグラフィックのインスタグラム(natgeo) - 4月25日 09時31分

Photo by @stevewinterphoto | A lone lioness who lives without a pride stands on a termite mound looking at a warthog she would love to catch. She failed—but it was an intense effort. Big cats on average are successful one out of every 20-plus times they hunt. It is estimated that as many as 500,000 African lions roamed Africa in 1900. Today the range of estimates lies between 20,000 and 30,000 individuals, and most of these are confined to seven key strongholds: Zambia, Kenya, Tanzania, South Africa, Botswana, Namibia, and Mozambique. Recent data shows that Kenya holds an incredibly dense and important population in the Masai Mara. This savanna system holds about 17 individuals per 100 square kilometers (40 sq mi), and migrating wildebeest and zebra are the key reason for this. Big cat populations (including lions) are strongly predicted by how many prey animals there are, and for lions the key prey are wildebeest, zebra, and in some places Cape buffalo. Even though rates of mortality in lion populations are high and cub survival is about 50 percent in the first year of life, if there is a strong prey base lions will thrive. Follow @ナショナルジオグラフィック #bigcatsinitiative to find out how National Geographic is working across the African lion’s range to secure its populations for future generations. @ナショナルジオグラフィック

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