Alex Jahn is a postdoctoral researcher at the Smithsonian’s Migratory Bird Center, studying South American intra-tropical migratory birds, which are birds that spend their entire lives in the tropics. Very little is known about where and why birds migrate at tropical latitudes, nor what the risks to survival are during such movements. Answers to such issues will provide vital information necessary to understanding which types of migrants are at greatest risk from current and future climate and habitat change. Jahn’s current research focuses on the bare-throated bellbird, which migrates in the Atlantic rainforest of southeastern South America. This charismatic species has suffered significant population declines due to the illegal pet trade. Jahn also studies South America's snail kite, a species that migrates in large numbers from southern Brazil northward, though no one yet knows where those birds spend the non-breeding part of the year.
Jahn's projects include:
- Ecology and conservation of intra-tropical migratory birds in Argentina and Brazil
- Migratory strategies (habitat use during migration and migratory routes) of bare-throated bellbirds, turdus thrushes and snail kites in Brazil and Argentina
A.E. Jahn, D.J. Levey, J.A. Hostetler, and A.M. Mamani, 2010. Determinants of partial bird migration in the Amazon Basin.Journal of Animal Ecology 2010: 79(5).
A.E. Jahn, D.J. Levey, and K.G. Smith, 2004. Reflections across hemispheres: a system-wide approach to New World bird migration. Auk, 121(4).
A.E. Jahn, D.J. Levey, V.R. Cueto, J.P. Ledezma, D.T. Tuero, J.W. Fox, and D. Masson, 2013. Long-distance bird migration within South America revealed by light-level geolocators.” Auk, 130(2).