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Auteur M. D. Anderson |
Documents disponibles écrits par cet auteur (12)
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Article
J. J. Herholdt, Auteur ; M. D. Anderson, AuteurThe breeding success of the nests of 60 African White-backed Vultures Gyps africanus, nine Black-chested Snake Eagles Circaetus pectoralis and![]()
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E. Herrmann, Auteur ; M. D. Anderson, Auteur ; M. Seaman, AuteurBi-monthly counts of waterbirds were made between March and September 2003 at an ephemeral pan in the Northern Cape Province following the first substantial inundation since 1988. Bi-annual counts between 1991 and 2003 indicated that the pan inf[...]![]()
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M. D. Anderson, AuteurThe semi-arid Northern Cape is the largest and most sparsely populated province in South Africa. One of the main economic activities is sheep farming, and the properties are generally very large (>5 000 ha). A heterogeneous environment results i[...]![]()
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M. D. Anderson, Auteur ; A. W. A. Maritz, Auteur ; E. Oosthuysen, AuteurIn the arid areas of southern Africa, the drowning of raptors in small reservoirs on farms is a significant cause of mortality. Records of 322 raptors of 29 species which drowned during 163 separate incidents have been collated. Whitebacked Gyps[...]![]()
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K. I. McCann, Auteur ; K. Shaw, Auteur ; M. D. Anderson, Auteur ; K. Morrison, AuteurKnowledge about the annual movement patterns of endangered species is important in understanding various aspects of their biology, such as dispersal from natal areas, seasonal movements,and areas where large numbers aggregate. We compare two tec[...]![]()
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Waterbird populations at the Orange River mouth from 1980-2001: a re-assessment of its Ramsar status
M. D. Anderson, Auteur ; H. Kolberg, Auteur ; P. C. Anderson, Auteur ; J. Dini, Auteur ; A. Abrahams, AuteurThe Orange River mouth (ORM), at the end of the longest river in South Africa, is one of few perennial wetlands on the and south-west African coast. The ORM supports a large number of waterbirds, with a maximum of



