Tropical plant biodiversity and biogeography
Tropical Pant Biodiversity and Biogeography
Plant species and assemblages show distinct geographical distribution patterns. In my research I attempt to discern the biotic and abiotic factors as well as evolutionary processes determining these patterns, especially in the tropics. Specific research topics include:
Fern flora of Bolivia (with A.R. Smith, Berkeley, CA, USA).
Systematics and biogeography of Andean Acanthaceae, Araceae, Bromeliaceae, Cactaceae, and Palmae.
Ecology and biogeography of ferns in Costa Rica, Ecuador, Bolivia, Africa and the Mascarene Islands, Indonesia, and the Philippines.
Causes determining the lower elevational limits of plants in mountains.
Causes determining the upper timberline.
Tropical deciduous forest ecology.
GIS modelling of the relationship of plant distributions and climate.
Influence of plant species richness on ecosystem function and stability.
Species distribution modelling