Información del autor
Autor Crawford, Robert J.M. |
Documentos disponibles escritos por este autor (1)


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Article : texto impreso
Crawford, Robert J.M., Autor ; Jaime Jahncke, Autor |The abundant guano-producing seabirds in Peru and southern Africa feed mainly on the large populations of anchovy Engraulis spp. and sardine Sardinops sagax supported by the Humboldt and Benguela upwelling systems. Numbers of guanay cormorants P[...]