The impact of birds on the lacustrines ecosystem Lake Chad. Ecology and productivity of a shallow tropical system /Dejoux, Claude OISEAU AQUATIQUE ESPECE FACTEUR ECOLOGIQUE RELATION TROPHIQUE BIOTOPE Dr Junk Publishers 1983 text https://www.documentation.ird.fr/hor/fdi:16191 fdi:16191 Dejoux Claude. The impact of birds on the lacustrines ecosystem. In : . Lake Chad. Ecology and productivity of a shallow tropical system Dr Junk Publishers, ; 53). 1983, 519-525 EN CAMEROUN EXTREME NORD LOGONE ET CHARI TCHAD LAC TCHAD NIGER NIGERIA