The Zoo is open 8 a.m. to 6 p.m. daily. Entry passes are required for all guests, including infants. Plan your visit.

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Ellen Welti, Ph.D.


Ellen Welti is a community ecologist working at the Smithsonian's National Zoo and Conservation Biology Institute's Conservation Ecology Center. She is part of the Great Plains Science Program based in the short and mixed-grass prairies of Montana. Her work focuses on plant-insect interactions, responses to altered biogeochemistry, and grassland ecosystems.