The pampas deer is a gregarious cervidae with 62% of individuals being observed within groups of at least three animals.
The average population structure observed was 55% adult females, 34% adult males, 10% juveniles, and 1% fawns, with a low recruitment rate of 0.11. We surveyed the population during seven years and detected an average of 117 (+ 72.7 SD) individuals (44 censuses). The aim of our study was to assess the demographic trends, grouping structure and dynamic of this small and isolated population. The most endangered subspecies of pampas deer Ozotoceros bezoarticus uruguayensis is an endemic cervidae of the Uruguayan temperate grasslands.
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