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Persistence Of Large Mammal Faunas As Indicators Of Global Human Impacts

Large mammals often play critical roles within ecosystems by affecting either prey populations or the structure and species composition of surrounding vegetation. However, large mammals are highly vulnerable to extirpation by humans and consequently, severe contractions of species ranges result in intact large mammal faunas becoming increasingly rare. We compared historical (AD 1500) range maps of large mammals with their current distributions to determine which areas today retain complete assemblages of large mammals. We estimate that less than 21% of

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GIRAFFES

The giraffe, Girafa camelopardalis, is distributed widely in Africa, although in many territories numbers have decreased greatly during the past century. In West Africa, a few are said to live in the Ferlo district, but there are none in Gambia, Sierra Leone or Liberia. In French West Africa, the once extensive range of the giraffe has become very reduced, and it is now found in number in only two regions-the first in the Mtnaka district, and the second around Aderbissinat.

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