Abstracto
- Introduction. In Cosoltepec, Oaxaca, the UMA (DGVS-CR-EX2388-OAX) coinhabit the white-tailed deer (Odocoileus virginianus) and goat cattle (Capra hircus), in silvopastoral systems, the latter represents a source of income for the community. Objective. Measure the overlap in the diets of both species to propose strategies for the conservation of both species. Methods. To determine the composition of the diets, micro-histological analyzes were performed in feces of goats and white-tailed deer at two seasons of the year (dry-rain). To know the goats and white-tailed deer diet similarity, the Kulczynski index and the Spearman correlation coefficient were calculated. Results and discussion. For the dry season, an overlap of 42.00% was found with a correlation of 0.533 (P=0.002012), whereas for the rainy season a 37.00% overlap with a correlation of 0.277 (P=0.1316). The most consumed species by both herbivores were Cilliandropsis nervosus, followed by Tabebuia chrysantha consumed in a very similar proportion as well as Acacia furcata, in the case of grasses, consumption was higher in goats than deer. The highest diet similarity was observed in the dry season, likely due to the shortage of food that occurs at this time. It is suggested to study in depth the diet preferences of both species (Rivera-Sánchez 2014; Arceo et al., 2005 and Villarreal et al., 2008). Conclusion. Diet overlapping in both seasons was lower than 50%, this suggests a low resources competition.
