This collection of twelve photographs illustrates how the Maasai use Acacia during prolonged drought, and the impacts of that use on long-term ecosystem processes. The Maasai are the largest group of nomadic livestock herders in eastern Africa. They greatly contribute to Kenya's beef industry, and cattle are their most important livestock. The Masai live in savanna ecosystems having well-defined...
This short film includes interviews with water researchers and presents basic concepts of hydrologic cycle. Water has many roles in the landscape; sculptor, solvent for minerals, a vector of transport, creates habitats. By following water through the landscape we can see connections between life and the physical environment.
This report presents an overview of how humans have altered the global nitrogen cycle. An introduction to the nitrogen cycle is provided; as well as human induced nitrogen fixation and its impact on the atmosphere, carbon cycle, aquatic and terrestrial ecosystem function, and biodiversity. The importance of nitrogen as a primary building block of life and its role in biological processes is also...
A male Klug’s clearwing butterfly (Dircenna klugii klugii) foraging on a coffee flower (Coffea arabica) in the Soconusco region of Chiapas, Mexico. Shade-grown coffee certification programs distinguish shade management practices that contain significantly higher levels of bird and butterfly diversity. This enhanced biodiversity may provide important ecosystem services, such as pollination, show...
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