Teodoro Marañón (Sevilla, 1954) is scientific researcher in the Institute of Natural Resources and Agrobiology of Seville, belonging to the CSIC.

Ph. D. in Biology for the University of Sevilla, research fellowships in the California University at Berkeley (USA), Cambridge University (UK), University La Sapienza at Rome (Italy), and the IPC at Cape Town (South Africa). Author of more than 60 papers in SCI´s journals and reviewer of manuscripts for journals of plant ecology, soil-plant relationships, and forest and environmental sciences. Member of the Spanish, British and American Ecological Societies. Supervisor of 10 Ph. D. dissertations, has directed 11 projects and coordinated 3 projects of the Spanish National Plan: Heteromed, Dinamed and Interbos. Collaborate with researchers of several Spanish (universities of Sevilla, Granada, Córdoba, Alcalá, and centers of the CSIC: CCMA, EBD, and CIDE), and international (universities of Cambridge, UC Berkeley, Wageningen, Hawaii, Zurich, and Tetouan) centers. Participate in the research networks at different levels: the research group Evoca (www.grupo.us.es/grnm210)), the Andalusian network Redbome (www.ugr.es/~redbome), thisSpanish Globimed, and the European Alternet (www.alter-net.info).

Research aims cover several topics on forest ecology. Study of regeneration ecology processes for trees and shrubs - seed predation, germination, emergence and seedling establishment - and the main factors affecting them. Review of the ecology of soil seed banks and their implications for biodiversity conservation. Study of diversity patterns of shrubland and woodland communities in South Spain and North Morocco, relating them with ecological and biogeographical factors. Research on environmental heterogeneity and influence of tree leaf litter on regeneration and diversity. Study of ecological interactions and the "footprint" of trees on the ecosystem. Since 1998, when the Aznalcóllar mine spill, has collaborated in the monitoring of the trace element accumulation in plants and soils of the Guadiamar Green Corridor, and in the evaluation of the afforestation carried out in the contaminated area.