Abstract # 3887 Event # 27:

Scheduled for Thursday, June 21, 2012 04:00 PM-04:15 PM: Session 7 (Camellia ) Oral Presentation


STRUCTURAL AND FUNCTIONAL QUALITY OF PLACES USED BY ALOUATTA SENICULUS IN TROPICAL DRY FOREST FRAGMENTS (CORDOBA, COLOMBIA)

N. Mesa-Sierra and J. Perez-Torres
Pontificia Universidad Javeriana, Bogotá, Cundinamarca, Colombia
line
     Nowadays in the State of Córdoba (Colombia), one of the most disturbed ecosystems corresponds to the tropical dry forest. It serves as a refuge for the howler monkey (Alouatta seniculus). It had been evaluated different structural and functional characteristics in two plots where the species was moved to feed, and two more where this was not recorded. It had been evaluated how the variation in these characteristics might be related with the way A. seniculus is making use of the different spots inside the fragments. Relating the spots with the presence-absence of the species was found that the heights of the majority of the trees in the plots with presence were in a range of 11.12–37m, and they were also located far away of human constructions. A habitat quality index was developed to identify which spots inside a fragment are suitable to allow the persistence of this species. The variables included in this index were: DBH, canopy openness, height of the trees and canopy diameter. These variables explained 14.5% of the presence-absence in sites used by A.seniculus within the fragments. The fragment size is not the only condition to ensure the presence and persistence of A. seniculus. It is important to quantify the characteristics of the sites use by this species, in order to identify which proportion of the fragment is suitable for it.