Tremblay is a member of the faculty of Biology at UPR- Humacoa in addition a member of the faculty of the Graduate Program at UPR-Rio Piedras, Dept. of Biology.
Tremblay’s interest spans a wide range of topic which can be encompassed within the concept quantitative analysis. These include understanding the biological processes (Natural Selection and Genetic Drift) that lead to speciation and why some families of plants have more species than others. Conservation biology and the quantitative approach which can predict species persistence (or extinction). Tremblay is enthusiastic about using innovated Biostatistics approach to answer biological questions, including Bayesian and Robust Statistics. He has developed new approaches for estimating parameters to evaluate population dynamics using Bayesian statistics. In recent years he has diversified his scope and is consultant in biostatistics in varies areas including biomedical research. Most of the studies on evolutionary processes and conservation have focused on the Orchid family.