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Caughley Caughley (1973)
In: Luangwa Valley conservation and development projectFAO Tech. Rep., 1
Barnes Barnes (1989)
Forest elephant surveys in Central AfricaPachyderm, 12
(1992)
E/c.p/ituir Mtrricrgonrc~r irr ZO~fhrrhii~~
H. Jachmann (1979)
Population Dynamics of the Elephants in the Kasungu National Park, MalawiNetherlands Journal of Zoology, 30
(1991)
The impact of the ivory ban on illegal hunting of elephants in six HANKS
N. Smith (1966)
The incidence of tuskless elephant in Mana Pools Game Reserve
Dublin Dublin, Jachmann Jachmann (1991)
The impact of the ivory ban on illegal hunting of elephants in six range states in AfricaWWF Int. Res. Rep., 4578
Caughley Caughley, Dublin Dublin, Parker Parker (1990)
Projected decline of the African elephantE.I.I.S., 14
Summary In the South Luangwa National Park and the adjacent Lupande Game Management Area, located in Zambia's Eastern Province, the fraction of adult tuskless female elephants increased from 10·5% in 1969 to 38·2% in 1989, apparently as a direct result of selective illegal ivory hunting. From 1989 to 1993, the fraction of adult tuskless females declined from 38·2% to 28·70%, as a result of immigration of a relatively larger fraction of tusked females from adjacent Game Management Areas. Tusklessness appears to run in families and is sex‐linked. Résumé Dans le Parc National de la Luangwa Sud et dans l'Aire de Gestion de la Faune de Lupande voisine, dans la province Orientale de Zambie, la proportion de femelles éléphants sans défenses est passée de 10,5% en 1969 à 38,2%, en 1989, suite directe semble‐t‐il de la chasse sélective pour l'ivoire. De 1989 à 1993, la proportion de femelles adultes sans défenses a baissé de 38,2%à 28,7%, en raison notamment de l'arrivée d'un assez grand nombre de femelles avec défenses en provenance des zones de gestion de la faune adjacentes, mais aussi à cause d'un changement de sex‐ratio en faveur des mâles. L'absence de défences semble être un caractère familial et lié au sexe de l'animal.
African Journal of Ecology – Wiley
Published: Sep 1, 1995
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