Laura Teresa Hernandez Salazar

TL;DR: The assumption that the behavioral relevance of an odorant may be an important determinant of a species' olfactory sensitivity is supported.

TL;DR: The results showed spider monkeys to have a high olfactory sensitivity for aliphatic esters, which for the majority of substances matches or even is better than that of species such as the rat, the mouse, or the dog.

TL;DR: The results indicate that A. geoffroyi clearly outperforms Macaca nemestrina with regard to the speed of initial task acquisition and the ability to master transfer tasks, and shows a sensitivity to a food-related odorant which matches that of other primate species.

TL;DR: Using a conditioning paradigm, the olfactory sensitivity of five spider monkeys for homologous series of aliphatic 1-alcohols and n-aldehydes was investigated, and a significant negative correlation between perceptibility in terms of Olfactory detection thresholds and carbon chain length of the alcohols, but not of the aldehydes tested was found.

TL;DR: The results suggest that despite their high degree of frugivory and high taste sensitivity for soluble carbohydrates, spider monkeys are opportunistic feeders with regard to maximizing net gain of energy.