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Great bustards ( Otis tarda ) commonly occur in isolated populations consisting of only a few tens of individuals. Knowing where these are, and understanding the factors affecting their persistence, is necessary to save this declining species. A census (Spring 1999) was therefore made of possible...
Madagascar's palm flora is very diverse (171 species) and has a high degree of endemism (97%). Palm products make an important contribution to the household economy of many rural families, especially in the palm-rich eastern escarpments. Many palms are, however, threatened by overexploitation and...