Jean C. G. Ortega
Research Officer – EcologyResearch Interests
I am Research Officer Ecologist in Teagasc. My research is focused in assessing the effect of niche, dispersal correlates and of anthropogenic impacts on community structure. For this, I often work with streams, floodplains, lakes, reservoirs, fish, macroinvertebrates, and zooplankton as study systems. I use uni (generalized linear models) and multivariate statistics, systematic review, meta-analysis techniques, spatially and temporally extensive data in my research.
Current Projects
Agricultural Catchments Programme
Education
- 2017: Ph.D. in Environmental Sciences, Graduate Program in Ecology of Continental Aquatic Environments, Universidade Estadual de Maringá, Brazil.
- 2014: M.Sc. in Environmental Sciences, Graduate Program in Ecology of Continental Aquatic Environments, Universidade Estadual de Maringá, Brazil.
- 2011: B.Sc. Biological Sciences, Universidade Federal de Mato Grosso, Brazil.
Professional Membership
- Associação Brasileira de Limnologia
- PLoS Water – Academic Editor
- Perspectives in Ecology and Conservation – Academic Editor
View Jean C. G. Ortega’s Publications on Scholar Google
Presentations
Ortega, J.C.G., Ezzati, G., Hall, R., Lynch, B., Mellander, P.-E. 2026. A causal test of the Nutrient Transfer Continuum to pollution-sensitive diatoms in intensively managed agricultural catchments. Biogeomon, Umeå, Sweden.
Ortega, J.C.G. 2026. Describing the water quality regulatory landscape in intensively managed agricultural catchments using land use lens. Agriculture and Land Use in Ireland, Portlaoise, Ireland.
Ortega, J.C.G. 2025. What biological indicators from riverbed indicate? Talk to Teagasc, Cooperative and Agricultural Sustainability Support and Advisory Programme advisors and Teagasc Catchment Coordinators in Clonakilty Agricultural College, Co. Cork.
Ortega, J.C.G., Ryan, D., Mellander, P.-E. 2025. Weak evidence of improvement in ecological indicators of water quality following country-wide mitigation measures of intensively managed agriculture catchments. eLTER Science Conference, Tampere, Finland.
Ortega, J.C.G., Hall, R.L., Mellander, P.-E. 2025. Long-term monitoring indicates that land use and soil drainage interactions drive macroinvertebrates and diatoms composition but not diversity in Irish agricultural catchments. International Interdisciplinary Conference on Land Use and Water Quality Agriculture and the Environment, Aarhus, Denmark.