Richness and abundance of birds in an urban gradient of Arequipa, southwest of Peru

2018 
Abstract The importance of knowing the effect of the advance of urbanization on biodiversity is becoming increasingly important, so it is necessary to increase the number of investigations in these environments. This study was conducted in the city of Arequipa, Peru, trying to cover urban, suburban and rural environments, relating the effects on the richness and abundance of birds in this gradient, finding during the study period a lower richness of bird species in urban environments with dominance of some species ( Columba livia and Turdus chiguanco), while in rural environments there were greater equity of abundance and greater richness of species. More studies are needed on a long time scale to have a better understanding of this dynamic. Keywords: conservation, diversity, metropolitan, range-abundance, urban ecosystem. Resumen La importancia de conocer el efecto del avance de la urbanizacion sobre la biodiversidad cada vez toma mayor importancia, por lo que es necesario incrementar el numero de investigaciones en estos ambientes. Este estudio se realizo en la ciudad de Arequipa, Peru, tratando de cubrir ambientes urbanos, suburbanos y rurales, y relacionando los efectos sobre la riqueza y abundancia de aves en esta gradiente, encontrando durante el periodo de estudio una menor riqueza de especies de aves en ambientes urbanos con dominancia de algunas especies ( Columba livia y Turdus chiguanco) , en cambio, en el ambiente rural se presento mayor equidad de las abundancias y mayor riqueza de especies. Mas estudios son necesarios a una escala temporal larga para tener un mejor entendimiento de esta dinamica. Palabras clave: conservacion, diversidad, metropolitano, rango-abundancia, ecosistema urbano.
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