Abstract (en):
En Colombia y en general en los Andes de Sur América, la diversidad de peces disminuye considerablemente con la altura, sin embargo la cuenca alta del río Cauca a pesar de estar localizada a partir de los 950 m.s.n.m., tiene una alta riqueza de especies en relación con otras regiones ubicadas a la misma altura. Igualmente, en esta cuenca se encuentra un alto porcentaje de endemismos debido probablemente al aislamiento generado por el levantamiento del valle geográfico del río Cauca como consecuencia de procesos de isostasia u orogénesis (Maldonado-Ocampo et al. 2005) y la formación del cañón del medio Cauca, que a lo largo de 200 km. de raudales en la llamada Depresión Momposina, se constituyó como una barrera fisiográfica que evitó que la mayoría de las especies de la cuenca baja pudiesen migrar hasta esta zona (Miles 1943b, Maldonado Ocampo et al. 2005).
Keywords:
Peces dulceacuícolas, Lista de especies, Río Cauca, Alto Cauca, Colombia (es)
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How to Cite
Ortega-Lara, A., Usma, J. S., Bonilla, P. A., & Santos, N. L. (2006). Fish of the upper Cauca river basin, Colombia. Biota Colombiana, 7(1). Retrieved from https://revistas.humboldt.org.co/index.php/biota/article/view/164
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