HERBIVORY IN THE LIZARD Sceloporus mucronatus mucronatus (SAURIA: PHRYNOSOMATIDAE) IN SIERRA DEL AJUSCO, DISTRITO FEDERAL, MEXICO
Keywords:
Sceloporus mucronatus mucronatus, herpetology, reptilians, Sierra del Ajusco, MéxicoAbstract
In this paper we document the omnivorous diet of a popu lation of Scelopurus mucronatus mucronatus. The study site was located in Sierra del Ajusco, Distrito Federal, Mexico, near kilometer 24.-5 on the Ajusco-Tianguistenco highway, the study site was a pine forest (Pinus hartwegii Lindl) with a considerable amount of basaltic rocks and lava where S. m. mucronatus were easily observed. To ensure full stomach contents collection time was between 11: 00 and 13: 00 hours after the typicall morning feeding period. Using analysis of variance (ANOVA) and by Shannon-Wiener Index, diversity of stomach contents by volume and the difference in the proportion of plant material consumed between sexes were obtained. It was found a 3 8. 7% plant material and 5 8. 6% of arthropods, insects principally, the remaining 2. 7% of the total volume was represented by a lizard Barisia imbrica/a, that was found in an adult male, that suggets incidental predation acts.
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