Relaciones competitivas entre proechimys semispinosus y hoplomys gymnurus (rodentia: echimyidae) en el occidente colombiano

Comparative data about movements, density, home range, and reproductive activity of Proechimys semispinosus and Hoplomys gymnurus (Rodentia: Echimyidae) were obtained by means of an eight-month capture-recapture study in the Bajo Calima region of the pacific coast of Colombia. In addition, intra and interespecific behavioral interactions were studied in captivity. Hoplomys gymnurus had a higher density than Proechimys semispinosus in the primary forest habitat, while the reverse situation was found in the secondary forest. The behavior of Proechimys semispinosuswas more agresive than that of Hoplomys gymnurus. In interespecific encounters, individuals of the former species showed a marked dominance and the latter always showed a submissive behavior.We propose that interference competition is minimized by means of microhabitat selection; Hoplomys gymnurus occurs preferentialiy in primary forest and Proechimys semispinosus in secondary forest in this region.

• Autores: Alberico, Michael; González M., Alonso
• Tipo de recurso: Article of journal
• Fecha de publicación: 1993
• Institución: Universidad Nacional de Colombia
• Repositorio: Universidad Nacional de Colombia
• Idioma: spa
• OAI Identifier: oai:repositorio.unal.edu.co:unal/30910
• Acceso en línea: https://repositorio.unal.edu.co/handle/unal/30910; http://bdigital.unal.edu.co/20986/
• Palabra clave: Proechimys semispinosus; Hoplomys gymnurus: Rodentia: Echimyidae; roedores caviomorfos
• Rights: openAccess
• License: Atribución-NoComercial 4.0 Internacional