Annual Abundance and Population Structure of Two Dung Beetle Species in a Human-Modified Landscape

摘要: Population studies are essential for understanding different aspects of species’ biology, estimating extinction probability, and determining evolutionary life history. Using the mark-recapture method, we studied abundance population structure dung beetle species (Deltochilum mexicanum Dichotomius satanas) over one year in a human-modified landscape Mexico. We captured 1960 individuals with net recapture rate 11%. Deltochilum had higher (14%) than satanas (5%). Annual variation was similar both species, maximum occurring summer marked reduction during winter. dominant inside forest, its influenced by vegetation cover, temperature, humidity. more frequent outside none considered environmental variables affected abundance. The adult sex ratio female-biased, whereas that male-biased. estimated size but number new survival rate. Since biological attributes presented pattern structure, conclude conditions main regulator populations landscape.