Expertise:
The effect of climate change (hurricanes, droughts, etc.) and anthropogenic factors on the diversity, abundance, and distribution of native and exotic species (phenology, longitudinal connectivity, habitat, niche, and life cycle) in tropical streams.
Publications:
- Lozada-Gómez, E.J. & Pérez-Reyes, O. (2024). Determination of Food Preference in Pterygoplichthys multiradiatus. Online J Ecol Environ Sci. 1(5): 2024. OJEES.MS.ID.000522.
- Gomez-Carrasquillo, J, Pérez-Reyes, O., Hernandez-Garcia, P.J. (2024). The Diet of the Non-Native Herbivore Iguana iguana in two coastal forest of Puerto Rico. Online Journal of Ecology and Environmental Sciences 1 (5), 1-9.
- Lozada-Gómez, E., & Pérez-Reyes, O. (2023). Analysis of population size of Pterygoplichthys multiradiatus and its intake of microplastics in streams with different land uses. Environmental Research: Ecology, 2(4), 045004.
- Torres-Pérez, W. X., & Pérez-Reyes, O. (2023). Effect of Particle Size and Pesticide Contamination on Preference and Ingestion Rates by the Tropical Freshwater Shrimp Xiphocaris elongata. Open Journal of Ecology, 13(4), 183-198.
- Torres-Perez, W. X., & Perez-Reyes, O. (2023). Population Status of the Tropical Freshwater Shrimp Xiphocaris elongata in Urban and Forest Streams in Puerto Rico. Hydrobiology, 2(1), 277-288.
- Cruz-Rosa, S., & Pérez-Reyes, O. (2023). Titanium Oxide Nanoparticles as Emerging Aquatic Pollutants: An Evaluation of the Nanotoxicity in the Freshwater Shrimp Larvae Atya lanipes. Ecologies, 4(1),141-151.
- Cruz-Rosa, S., & Pérez-Reyes, O. (2023). Neurotoxicity and Oxidative Stress Development in Adult Atya lanipes Shrimp Exposed to Titanium Dioxide Nanoparticles. Toxics, 11(8), 694.
- Gutierrez-Fonseca, P.E., Ramirez, A., Pringle, C.M., Torres, P.J., McDowell, W.H., Covich, A., Crowl, T.A., Pérez-Reyes, O. (2019). When the rainforest dries up: Drought effects on a tropical rainforest stream in Puerto Rico, Freshwater Science, 39(2), 197-212.
- Pérez-Reyes, O., Crowl, T. A., & Covich, A. P. (2016). Comparison of decapod communities across an urban-forest land use gradient in Puerto Rican streams. Urban Ecosystems, 1-23.
Links:
Contact information: omar.perez15@upr.edu/ (787) 764-0000 Ext. 88062