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Los Amigos Biological Station

View from CICRA canopy tower

Our Los Amigos Biological Station is located in lowland Amazonian forest at the base of Peru’s southern Andes. The station sits at the tip of a peninsula on a high terrace between the Madre de Dios and Los Amigos Rivers and provides easy access to various forest types and aquatic habitats. The Los Amigos Biological Station was established in 2000, on the conviction that the greatest forest on earth deserves the best research centers in the world.

Los Amigos is a leading training site for young scientists and conservationists. In addition to muddy-boots field experience in the 360,000-acre Los Amigos Conservation Concession (LACC), adjoining our 1,119-acre biological station, these young scientists benefit from regular presentations by visiting researchers, involvement with the station’s long-term ecological monitoring program, specialized training as part of field courses, access to a large scientific library, and immersion in a vibrant scientific community. The station has hosted more than 213 research projects and produced 223 publications, including biological inventories of more than 30 types of organisms. It truly is a hub for research on this vital ecosystem.

Los Amigos at a Glance

  • Established: 2000
  • Research projects hosted to date: Over 210
  • Number of grants awarded to work in Los Amigos: 124
  • Taxonomic groups inventoried to date: 31
  • Species recorded to date: 4,369
  • Mean annual precipitation: 2,600mm
  • Mean annual temperature: 23°C/ 73.4°F
  • Peer-reviewed papers based on work at Los Amigos: >230
  • Undergraduate, master’s, and doctoral theses: 22, 20, and 10
  • Books about Los Amigos research: 3
  • Number of field courses hosted at Los Amigos through 2012: >50
  • Miles of trails: 60 miles (23 miles are regularly maintained)



Los Amigos offers visitors the resources necessary for cutting-edge science in tropical wilderness, including:

  • Accommodations and dining facilities for up to 60 visitors
  • Spacious labs and offices
  • A lecture hall and scientific library
  • >60 miles of well-maintained, geo-referenced trails
  • A 200-foot observation tower
  • Very limited internet
  • Access to online scientific literature and databases
  • A digital database of plant species collected on site
  • In-house field guides to local plant and animal communities
  • Two smaller satellite stations (CM1 and CM2), each with its own laboratory and lodging, are 2 miles and 15 miles from the main station.



Current Prices



Dorm with shared bathroom



Dorm with private bathroon
Cabin with private bathroom

All prices above include meals and 18% Peruvian sales tax (IGV).

If you are not a researcher or course but would like to bird or explore the Amazon with us, visit this site for more information!


Sample Publications Featuring Research Conducted at Los Amigos

  • Álvarez-Loayza, P., White, J.F., Torres, M.S., Balslev, H., Kristiansen, T., Svenning, J., & Gil, N. (2011). Light Converts Endosymbiotic Fungus to Pathogen, Influencing Seedling Survival and Niche-Space Filling of a Common Tropical Tree, Iriartea deltoidea. PLoS One, 6(1). doi: 10.1371/journal.pone.0016386.
  • Bravo, A., Harms, K. E., & Emmons, L. H. (2010). Preference for Collpa Water by Frugivorous Bats (Artibeus): An Experimental Approach. Biotropica42(3), 276–280. doi:10.1111/j.1744-7429.2010.00639.x
  • Dáttilo, W., Falcão , J. C. F., Yanoviak, S. P., Poinar, Jr., G., & Izzo, T. J. (2013). The Geographic Distribution of Parasite-Induced Fruit Mimicry in Cephalotes atratus (Formicidae: Myrmicinae). The Journal of Parasitology99(1), 155–157. Retrieved from
  • de Luna, Ana G, Sanmiguel, R., Di Fiore, A., & Fernandez-Duque, E. (2010). Predation and Predation Attempts on Red Titi Monkeys (Callicebus discolor) and Equatorial Sakis (Pithecia aequatorialis) in Amazonian Ecuador  Folia Primatol, 81, 86–95. doi:10.1159/000314948
  • Dexter, K. G., Terborgh, J. W., & Cunningham, C. W. (2012). Historical effects on beta diversity and community assembly in Amazonian trees. Proceedings of the National Academy of Sciences of the United States of America109(20), 7787–7792. doi:10.1073/pnas.1203523109
  • Frederickson, M. E., Ravenscraft, A., Miller, G. A., Hernández, L. M. A., Booth, G., & Pierce, N. E. (2012). The Direct and Ecological Costs of an Ant-Plant Symbiosis. The American Naturalist179 (6), 768–778. doi:10.1086/665654
  • Palminteria, S., Powell, G. V. ., & Peres, C. A. (2011). Regional-scale heterogeneity in primate community structure at multiple undisturbed forest sites across south-eastern Peru. Journal of Tropical Ecology27(2), 181–194. doi:10.1017/S0266467410000684
  • Pitman, N. C. A. (2010). Research in biodiversity hotspots should be free. Trends in Ecology & Evolution25(7), 381. doi:10.1016/j.tree.2010.04.002
  • Plata, E. R., & Lücking, R. (2013). High diversity of Graphidaceae (lichenized Ascomycota: Ostropales) in Amazonian Perú. Fungal Diversity58(1), 13–32. doi:10.1007/s13225-012-0172-y
  • Salvadora, S., Claveroa, M., & Pitman, R. L. (2011). Large mammal species richness and habitat use in an upper Amazonian forest used for ecotourism. Mammalian Biology76(2), 115–123. doi:10.1016/j.mambio.2010.04.007


Interested in Doing Research or Conducting a Course at Los Amigos?

  • Email us for site availability and logistics questions at
  • Email our Science Director Aimy Cáceres, PhD for any science and research related questions at
  • Visit our social media pages to see the latest of what is going on at Los Amigos! Follow us at our Los Amigos Facebook


CICRA sign

Los Amigos welcome sign. Photo: Gena Mavuli

View from Tower

View from the observation tower at Los Amigos. Photo: Gabby Salazar

Photo of researchers and tapir

Researchers with a captured tapir that they’re about to fit with a radio collar. Photo: Mathias Tobler

Photo of CICRA lab

Lab at Los Amigos. Photo: Nigel Pitman

Luis Felipe on boat to Los Amigos

Former Amazon Conservation Executive Director Luis Felipe Duchicela (left) and Los Amigos Administrator Carlos Castañeda traveling along the Madre de Dios River. Photo: Jerry Martinez

The beginning of the stairs up from the river to Los Amigos. Photo: Adrian Tejedor

Photo of group of people in a swamp

Researchers study in a palm swamp at Los Amigos. Photo: BRIT

Climbing the tower

Researcher climbing the Los Amigos observation tower. Photo: Adrian Tejedor

Climbing the tower Frog at Los Amigos. Photo: Gabby Salazar

Climbing the tower River bank near Los Amigos. Photo: Amazon Conservation staff

red tapestry